Doshi Impex (India)
Doshi Impex (India)
Girgaon, Mumbai, Maharashtra
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Sheet Plate and Coil

Our range of products include inconel 625 plate, duplex steel 2304 sheet, ss 304 sheet plate coil, stainless steel 441, steel 441 ferritic stainless steel and ss 430 sheet.
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Inconel 625 Plate
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Inconel 625 Plate

Approx. Price: Rs 1,250 / KgGet Latest Price

Alloy 625 is an austenitic nickel-chromium-molybdenum-niobium alloy possessing a rare combination of outstanding corrosion resistance coupled with high strength from cryogenic temperatures to 1800°F (982°C). An Austenitic Nickel-Chromium-Molybdenum-Niobium Alloy with Outstanding Corrosion Resistance and High Strength from Cryogenic Temperatures to 1800°F (982°C)

The strength of Alloy 625 is derived from the solid-solution hardening of the nickel-chromium matrix by the presence of molybdenum and niobium. Therefore, precipitation-hardening treatments are not required.

The chemical composition of Alloy 625 is also responsible for its outstanding corrosion resistance in a variety of severe operating environments along with resistance to oxidation and carburization in high temperature service. The alloy is resistant to pitting, crevice corrosion, and impingement corrosion, inter-granular attack and is almost immune to chloride stress corrosion cracking. Alloy 625 can be easily welded and processed by standard shop fabrication practices.

Specification
Alloy 625 (UNS N06625)
W. Nr. 2.48161

 

Standards
ASTM B 443
ASME SB 443
AMS 5599

 

Corrosion Resistance
The highly alloyed chemical composition of Alloy 625 imparts outstanding corrosion resistance in a variety of severely corrosive environments. The alloy is virtually immune to attack in mild conditions such as the atmosphere, fresh and sea water, neutral salts and alkaline solutions. Nickel and chromium provide resistance to oxidizing solutions and the combination of nickel and molybdenum supply resistance in non-oxidizing environments. Molybdenum also makes Alloy 625 resistant to pitting and crevice corrosion, while niobium acts as a stabilizer during welding to prevent intergranular cracking. The high nickel content of Alloy 625 makes it virtually immune to chloride stress corrosion cracking.

 

The alloy resists attack by mineral acids such as hydrochloric, nitric, phosphoric and sulfuric, and to alkalis and organic acids in both oxidizing and reducing conditions.

Alloy 625 can be easily welded and processed by standard shop fabrication practices, however because the high strength of the alloy, it resists deformation at hot-working temperatures.

 

Hot Forming
The hot-working temperature range for Alloy 625 is 1650 – 2150°F (900 – 1177°C). Heavy working needs to occur as close to 2150°F (1177°C) as possible, while lighter working can take place down to 1700°F (927°C). Hot-working should occur in uniform reductions to prevent duplex grain structure.

 

Applications
Aerospace Components – bellows and expansion joints, ducting systems, jet engine exhaust systems, engine thrust-reversers, turbine shroud rings

 

Air Pollution Control – chimney liners, dampers, flue gas desulfurization (FGD) components

Chemical Processing – equipment handling both oxidizing and reducing acids, super-phosphoric acid production

Marine Service – steam line bellows, Navy ship exhaust systems, submarine auxiliary propulsion systems

Nuclear Industry – reactor core and control rod components, waste reprocessing equipment

Offshore Oil and Gas Production – waste flare gas stacks, piping systems, riser sheathing, sour gas piping and tubing

Petroleum Refining – waste flare gas stacks

Waste Treatment – waste incineration components


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  • Minimum Order Quantity: 500 Kg
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Duplex Steel 2304 Sheet
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Duplex Steel 2304 Sheet

Approx. Price: Rs 500 / KgGet Latest Price

Alloy 2304 (UNS S32304) is a 23% chromium, 4% nickel, molybdenum-free duplex stainless steel. The Alloy 2304 has corrosion resistance properties similar to 316L. Furthermore, its mechanical properties, i.e., yield strength, are twice those of 304L/316L austenitic grades. Alloy 2304 is a 23% chromium, 4% nickel, molybdenum-free duplex stainless steel. The Alloy 2304 has corrosion resistance properties similar to 316L. Furthermore, its mechanical properties, i.e., yield strength, are twice those of 304/316 austenitic grades. This allows the designer to save weight, particularly for properly designed pressure vessel applications. The alloy is particularly suitable for applications covering the -50°C/+300°C (-58°F/572°F) temperature range. Lower temperatures may also be considered but need some restrictions, particularly for welded structures. With its duplex microstructure and low nickel and high chromium contents, the alloy has improved stress corrosion resistance properties compared to 304 and 316 austenitic grades.

Specification
Alloy 2304 (UNS S32304)

 

Standards
ASTM/ASME A240 - UNS S32304
EURONORM 1.4362 - X2 Cr Ni 23.4
AFNOR Z3 CN 23.04 Az
DIN W. Nr 1.4362 

Processing

Hot Forming
Hot forming must be performed in the 1150/900°C (2100/1650°F) temperature range. After forming, a new solution annealing treatment is recommended in the 950°/1050°C (2100°/1650°F) temperature range to fully restore corrosion resistance properties and mechanical properties. Parts formed with 2304 must be supported carefully during heating to avoid creep deformation.

 

Cold Forming
Alloy 2304 may be cold formed without any problem. The same equipment as used for the cold forming of 304L and 316L grades can be used. Due to its higher mechanical properties, including the yield strength, higher stresses are required for cold forming. A final solution annealing heat treatment is also recommended after cold forming in order to restore the mechanical and corrosion resistance properties, as described in hot forming.

 

Descaling
Use the same solutions and pastes as for Alloys 304L/316L. The pickling time will be higher than for austenitic grades due to the corrosion resistance properties of the alloy. 

Machinability
Alloy 2304 duplex exhibits improved machinability properties particularly when considering drilling. Its behavior is equivalent to that of 316LEZ. Furthermore, 2304 has better corrosion resistance and cleanliness properties as no sulphur additions are necessary. Localized corrosion resistance behavior is improved. 

Applications
Generally where 304 and 316L are used
Pulp and paper industry (chip storage tanks, white and black liquor tanks, digestors)
Caustic solutions, organic acids (SCC resistance)
Food industry
Pressure vessels (weight savings)
Mining (abrasion/corrosion)


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  • Minimum Order Quantity: 500 Kg
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SS 304 Sheet Plate Coil
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SS 304 Sheet Plate Coil

Approx. Price: Rs 160 / KgGet Latest Price
Product Details:
Minimum Order Quantity300 Kg
Material GradeSS304 | SS304L
Thickness0.65-15 mm
TypeSheet | Plate | Coil
ShapeRectangular
Steel Grade304/304L
ColorSilver
Size1250 mm x 2500 mm,1000 mm x 2000 mm & 1500 mm x 3000 mm
MaterialStainless Steel
BrandJindal,POSCO
Surface TreatmentPVC Coated
Finish2B,HairLine,Matt Finish,Glossy
Usage/ApplicationIndustrial
Sheet Size1250 mm x 2500 mm,1000 mm x 2000 mm & 1500 mm x 3000 mm
StandardASTM A240 & ASME SA240
Payment Terms:100% Advance
Test CertificateNABL Test Report Along With Material

 

SAE 304
Stainless steel is the most common stainless steel. The steel contains both chromium (between 18% and 20%) and nickel (between 8% and 10.5%) metals as the main non-iron constituents. It is an austenitic stainless steel. It is less electrically and thermally conductive than carbon steel and is essentially non-magnetic. It has a higher corrosion resistance than regular steel and is widely used because of the ease in which it is formed into various shapes. 304 stainless steel has excellent resistance to a wide range of atmospheric environments and many corrosive media. It is subject to pitting and crevice corrosion in warm chloride environments and to stress corrosion cracking above about 60 °C. It is considered resistant to pitting corrosion in water with up to about 400 mg/L chlorides at ambient temperatures, reducing to about 150 mg/L at 60 °C.

304 stainless steel is also very sensitive at room temperature to the thiosulfate anions released by the oxidation of pyrite (as encountered in acid mine drainage) and can undergo severe pitting corrosion problems when in close contact with pyrite- or sulfide-rich clay materials exposed to oxidation.
304 stainless steel is used for a variety of household and industrial applications such as food handling and processing equipment, screws, machinery parts, and car headers. 304 stainless steel is also used in the architectural field for exterior accents such as water and fire features. It is also a common coil material for vaporizers.

 

The Japanese equivalent grade of this material is SUS304. It is also specified in European norm 1.4301.

Features
Very good corrosion resistance,
weld ability and cold deformability.
Good deep drawing properties and very good high gloss polish ability.

Specifications: 304
UNS: S30400 | X5CrNi18-10 | 1.4301| SUS 304

 

Specifications: 304L
UNS: S30403 | X2CrNi19-11 | 1.4306 | SUS 304L

Typical Applications
Food processing equipment, particularly in beer brewing, milk processing & winemaking
Kitchen benches, sinks, troughs, equipment and appliances
Architectural paneling, railings & trim
Chemical containers, including for transport
Heat Exchangers
Woven or welded screens for mining, quarrying & water filtration
Threaded fasteners
Springs.

Stainless Steel 304 Sheets Plates

Stainless Steel 304L Sheets Plates

SS 304 Sheets Plates

SS 304L Sheets

Stainless Steel UNS S30400 Plates

SS UNS S30403 Sheets Plates

Stainless Steel Din 1.4306 Plates

SS Din 1.4307 Sheets

 

 


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Stainless Steel 441
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Stainless Steel 441

Approx. Price: Rs 135 / KgGet Latest Price
Product Details:
Minimum Order Quantity1000 Kg
Thickness1-2 mm
TypeSHEET
Material Grade441
MaterialSTAINLESS STEEEL
ShapeRECTANGULAR
Surface TreatmentNO.4 FINISH(MATT FINISH OR BRUSH FINISH)
Steel Grade441
BrandJINDAL AND IMMPORTED
Usage/ApplicationELEVATOR
Size1250/1220/1150/1120 MM X 2500/2220/2200/2300/2400
ColorSILVER
FinishingNO.4 PVC
Stainless steel sheet
grade 441
finish:-mat finish (no. 4 finish) with pvc layer
thickness:-1mm,1. 2mm
size:1250/1150/1140/1220 mm x 2500/2220/2300/2400 mm
make:jindal,immported

Additional Information:
  • Item Code: DI441
  • Delivery Time: READY STOCK
  • Packaging Details: WOODEN PALLET PACKING FROM THE MILL
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  • Steel 441 Ferritic Stainless Steel
  • Steel 441 Ferritic Stainless Steel
  • Steel 441 Ferritic Stainless Steel
  • Steel 441 Ferritic Stainless Steel
  • Steel 441 Ferritic Stainless Steel
Steel 441 Ferritic Stainless Steel
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Steel 441 Ferritic Stainless Steel

Approx. Price: Rs 130 / KgGet Latest Price
Product Details:
Minimum Order Quantity200 Kg
Thickness1-2 mm
Steel GradeSS 441
TypeSheet | Plate | Coil
MaterialFerritic stainless-steel
ShapeFlat & Rectangular
ColorSilver
Usage/ApplicationIndustrial
Size1250 mm x 2500 mm,1220 mm x 2220 mm,Customize size available
Material GradeSteel 441
FeaturesIt can withstand many sufficiently diluted organic and mineral acids depending on the temperature an
Finish2b,No 4 PVC,Matt
I Deal InNew Only
CertificationNABL Test Certificate
Product CodeSS 441,1.4509.
Place Of OriginIndia
StandardASTM A240
Length2500 mm
ApplicationTubing,Kitchen Equipment,Heat Exchangers & Architectural
PropertiesGood Ductility,Creep Resistance,Good For Deep Drawing & Good for Polish
Product FormSheet | Plate | Coil

Stainless steel grade 441 is a ferritic stainless-steel containing niobium that provides the steel good oxidation and corrosion resistance. This steel provides good high-temperature strength in exhaust gas environments, and has good for deep drawing, good ductility, good weldability, and good brightness. It polishes well. The 441-flat rolled stainless steel possesses magnetic quality in all conditions. This grade may be used in the annealed, cold formed or as-welded condition in applications where other stainless steels such as Type 304/304L and Type 430 are used. Type 441 has good weldability due to titanium and niobium stabilization and has excellent resistance to stress corrosion cracking. Type 441 outperforms Type 409 in both oxidation and corrosion resistance and typical applications include automotive manifolds and exhaust system components. The high temperature strength of Type 441 exceeds that of both Types 439 and 409 stainless steels.
 
Processing / Welding
Standard welding processes for this steel grade are:
TIG-Welding
 MAG-Welding Solid Wire
Arc Welding (E)
 
Applications
Grade 441 stainless steel is applied in catering equipment and automotive-exhaust system components.
Indoor cladding
Restaurant equipment and appliances
Tubes
Heat exchangers


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  • SS 430 Sheet
  • SS 430 Sheet
SS 430 Sheet
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SS 430 Sheet

Approx. Price: Rs 125 / KgGet Latest Price
Product Details:
Material GradeStainless Steel 430
Thickness>5 mm
TypeSheet | Plate | Coil
Steel GradeStainless Steel 430
MaterialFerritic Stainless Steel
ShapeFlat & Rectangular
BrandDoshi Impex (India)
Usage/ApplicationIndustrial, Construction, & Pharmaceutical industry
Size1000 mm,1220 mm,1250 mm & Any Custom size as per requirement.
Features430 stainless steel is applied in catering equipment and automotive-exhaust system components.
CertificationTest Certificate or NABL Certificate can be provided
Length1000 mm,2440 mm,2500 mm & Any Custom size as per requirement.
Payment Terms100% Advance Against PI

Stainless steel grade 430 is a ferritic stainless-steel. This steel provides good high-temperature strength in exhaust gas environments, and has good for deep drawing, good ductility, good weldability, and good brightness. It polishes well. The 430-flat rolled stainless steel possesses magnetic quality in all conditions. This grade may be used in the annealed, cold formed or as-welded condition in applications where other stainless steels such as Type 304/304L and Type 430 are used. Type 430 has good weldability due to titanium and niobium stabilization and has excellent resistance to stress corrosion cracking. Type 430 outperforms Type 409 in both oxidation and corrosion resistance and typical applications include automotive manifolds and exhaust system components. The high temperature strength of Type 430 exceeds that of both Types 439 and 409 stainless steels.

 

Processing / Welding

Standard welding processes for this steel grade are:

TIG-Welding

 MAG-Welding Solid Wire

Arc Welding (E)

 

Applications

Grade 430 stainless steel is applied in catering equipment and automotive-exhaust system components.

Indoor cladding

Restaurant equipment and appliances

Tubes

Heat exchangers


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304 Stainless Steel Chequered Plate
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304 Stainless Steel Chequered Plate

Approx. Price: Rs 180 / KgGet Latest Price
Product Details:
Thickness0.56-10 mm
Material GradeSS304
MaterialStainless Steel
ShapeRectangular
PatternChequered
Owing to the years of industrial experience, we have been able to serve our valued clients with a wide range of Stainless Steel Chequered Plate.

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Stainless Steel Sheets No.4 PVC
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Stainless Steel Sheets No.4 PVC

Approx. Price: Rs 250 / KgGet Latest Price
Product Details:
Minimum Order Quantity500 Kg
Thickness0.35-5 mm
Steel GradeSS 304,SS 316,SS 321,SS 347,SS 904,SS 15-5 Ph,SS 17-4 pH
TypeSheet | Plate | Coil
MaterialStainless Steel
Surface TreatmentCoated,Hot Rolled,Cold Rolled
ShapeFlat & Rectangular
BrandJindal,Colmbus,Bahru,Posco
Usage/ApplicationIndustrial
Size2000 / 1250 & 1500 in any length
ColorSliver
FinishingSilver
FeaturesRust Free
Finish2B,No 4 Matt PVC,Hairline,2D
Weight20 kg - 10000 kg
Sheet Size1250 mm x 2500 mm,1500 mm x 3000 mm
CertificationTest Certificate along with material
Place Of OriginIndian
Product CodeStainless Steel Sheet
Max Width1250 mm,1500 mm & 2000 mm
StandardASTM
Nickel Alloys304,316,321,347,904,15-5 Ph,17-4 pH
Length1000-2500 mm
Payment Terms100% Advance
Material Grade304,304L,316,316L,310,309,321,2205,347
Port Of DispatchNhava Sheva or JNPT
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316 Stainless Steel Chequered Plate
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316 Stainless Steel Chequered Plate

Approx. Price: Rs 220 / KgGet Latest Price
Product Details:
Thickness1.20-5 mm
Material GradeSS316
MaterialStainless Steel
PatternChequered
Length500-1500 mm
Owing to the years of industrial experience, we have been able to serve our valued clients with a wide range of Stainless Steel Chequered Plate.

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Stainless Steel Coloured Sheet
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Stainless Steel Coloured Sheet

Approx. Price: Rs 215 / KilogramGet Latest Price
Product Details:
MaterialStainless Steel
ShapeRectangular
Length1000-2500 mm
Width850-1500 mm
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316L Stainless Steel Plate
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316L Stainless Steel Plate

Approx. Price: Rs 215 / KgGet Latest Price
Product Details:
Thickness0.50-5 mm
Material GradeSS316L
MaterialStainless Steel
ShapeRectangular
Owing to the years of industrial experience, we have been able to serve our valued clients with a wide range of Stainless Steel Plate.

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321-321H Stainless Steel Plates
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321-321H Stainless Steel Plates

Approx. Price: Rs 180 / KgGet Latest Price
Product Details:
Material Grade321-321H
Thickness0.62-10 mm
MaterialStainless Steel
ShapeRectangular
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409M SS Plate
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409M SS Plate

Approx. Price: Rs 215 / KgGet Latest Price
Product Details:
Material GradeSS409M
Thickness4.0 mm-100 mm
MaterialStainless Steel
StandardASTM A240 / ASME SA240
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MS Chequered Plate
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MS Chequered Plate

Approx. Price: Rs 60 / KilogramGet Latest Price
Product Details:
Thickness1.25-15 mm
MaterialMild Steel
ShapeRectangular
PatternChequered
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C45 Carbon Steel Plates
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C45 Carbon Steel Plates

Approx. Price: Rs 120 / KgGet Latest Price
Product Details:
Material GradeC45
Thickness0.50-15 mm
MaterialCarbon Steel
ShapeRectangular
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Stainless Steel 321 Sheet
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Stainless Steel 321 Sheet

Approx. Price: Rs 270 / KgGet Latest Price

Alloy 321 (UNS S32100) is titanium stabilized austenitic stainless steel plate with good general corrosion resistance. It has excellent resistance to intergranular corrosion after exposure to temperatures in the chromium carbide precipitation range of 800 - 1500°F (427 - 816°C). The alloy resists oxidation to 1500°F (816°C) and has higher creep and stress rupture properties than alloys 304 and 304L. It also possesses good low temperature toughness.

Alloy 321H (UNS S 32109) stainless steel plate is the higher carbon (0.04 - 0.10) version of the alloy. It was developed for enhanced creep resistance and for higher strength at temperatures above 1000oF (537°C). In most instances, the carbon content of the plate enables dual certification.

Alloy 321 stainless steel plate cannot be hardened by heat treatment, only by cold working. It can be easily welded and processed by standard shop fabrication practices.

 

Applications
Aerospace – piston engine manifolds
Chemical Processing
Expansion Joints
Food Processing – equipment and storage
Petroleum Refining – polythionic acid service
Waste Treatment – thermal oxidizers
Pharmaceutical Production

Corrosion Resistance

Alloy 321 stainless steel plate exhibits good general corrosion resistance that is comparable to 304. It was developed for use in the chromium carbide precipitation range of 1800 – 1500°F (427 – 816°C) where un-stabilized alloys such as 304 are subject to intergranular attack.

 

The alloy can be used in most diluted organic acids at moderate temperatures and in pure phosphoric acid at lower temperatures and up to 10% diluted solutions at elevated temperatures. Alloy 321 resists polythionic acid stress corrosion cracking in hydrocarbon service. It can also be utilized in chloride or fluoride free caustic solutions at moderate temperatures.
Alloy 321 stainless steel plate does not perform well in chloride solutions, even in small concentrations, or in sulfuric acid service. Alloy 321 stainless steel plate can be easily welded and processed by standard shop fabrication practices.

Cold Forming

The alloy is quite ductile and forms easily.

 

Hot Forming

 

The high sulfur content of Alloy 303 also has a detrimental impact on hot workability. If hot forming is required, once again, 304 should be considered as an alternate selection.

 

 


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304 Stainless Steel Sheet
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304 Stainless Steel Sheet

Approx. Price: Rs 165 / KgGet Latest Price
Product Details:
ShapeRectangular
MaterialStainless Steel
Length1000-2500 mm
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Stainless Steel 2205

Approx. Price: Rs 350 / KgGet Latest Price
Product Details:
Minimum Order Quantity500 Kg
Material GradeStainless Steel
Size1100 mm/1219 mm/1240 mm/1500 mm/2000 mm or as customer's requirements
Usage/ApplicationAutomobile Industry
StandardASTM/ASME A240 UNS S32205 S31803
I Deal InNew Only
Payment Term100% Advance
Test CertificateNABL Test Report Along with Material Only

Alloy 2205 (UNS S32305/S31803) is a 22% chromium, 3% molybdenum, 5-6% nickel, nitrogen alloyed duplex stainless steel plate with high general, localized, and stress corrosion resistance properties in addition to high strength and excellent impact toughness. Alloy 2205 duplex stainless steel plate provides pitting and crevice corrosion resistance superior to 316L or 317L austenitic stainless steels in almost all corrosive media. It also has high corrosion and erosion fatigue properties as well as lower thermal expansion and higher thermal conductivity than austenitic. Alloy 2205 duplex stainless steel plate is a 22% Chromium, 3% Molybdenum, 5-6% Nickel nitrogen alloyed duplex stainless steel plate with high general, localized and stress corrosion resistance properties in addition to high strength and excellent impact toughness. Alloy 2205 duplex stainless steel plate provides pitting and crevice corrosion resistance superior to 316L or 317L austenitic stainless steels in almost all corrosive media. It also has high corrosion and erosion fatigue properties as well as lower thermal expansion and higher thermal conductivity than austenitic. The yield strength is about twice that of austenitic stainless steels. This allows a designer to save weight and makes the alloy more cost competitive when compared to 316L or 317L. Alloy 2205 duplex stainless steel plate is particularly suitable for applications covering the -50°F/+600°F temperature range. Temperatures outside this range may be considered but need some restrictions, particularly for welded structures.

Specification
Alloy 2205 (UNS S32205/S31803)
A 22Cr-3Mo Stainless Steel

 

Standards
ASTM/ASME A240 UNS S32205/S31803
EURONORM 1.4462 X2CrNiMoN 22.5.3
AFNOR Z3 Cr Ni 22.05 AZ
DIN W. Nr 1.4462 

Corrosion Resistance
Because of its high chromium (22%), molybdenum (3%), and nitrogen (0.18%) contents, the corrosion resistance properties of 2205 duplex stainless steel plate are superior to that of 316L or 317L in most environments. The chromium, molybdenum, and nitrogen in 2205 duplex stainless steel plate also provide excellent resistance to pitting and crevice corrosion even in very oxidizing and acidic solutions.

 

Stress Corrosion Resistance
The duplex microstructure is known to improve the stress corrosion cracking resistance of stainless steels. Chloride stress corrosion cracking of austenitic stainless steels can occur when the necessary conditions of temperature, tensile stress, oxygen, and chlorides are present. Since these conditions are not easily controlled, stress corrosion cracking has often been a barrier to utilizing 304L, 316L, or 317L.

 

Corrosion Fatigue Resistance
Alloy 2205 duplex stainless steel plate combines high strength and high corrosion resistance to produce high corrosion fatigue strength. Applications in which processing equipment is subject to both an aggressively corrosive environment and to cycle loading can benefit from the properties of 2205 duplex stainless steel plate.

 

Chloride Pitting Resistance
The pitting resistance of an austenitic stainless steel can be related directly to alloy composition, where chromium, molybdenum and nitrogen are a weight %.

 

Applications
Pressure vessels, tanks, piping, and heat exchangers in the chemical processing industry
Piping, tubing, and heat exchangers for the handling of gas and oil
Effluent scrubbing systems
Pulp and paper industry digesters, bleaching equipment, and stock-handling systems
Rotors, fans, shafts, and press rolls requiring combined strength and corrosion resistance
Cargo tanks for ships and trucks
Food processing equipment


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  • Delivery Time: Ready Stock
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Stainless Steel 316 Plate

Approx. Price: Rs 220 / kgsGet Latest Price
Product Details:
Minimum Order Quantity500 kgs
ShapeSquare, Rectangular, Coil Form, Strip For
Steel GradeSS 316
ColorSilver
Size1250 mm x 2500 mm, 8Ft x 4 Ft, 1500 mm x 3000 mm & 2000 mm x 6000 mm
MaterialStainless Steel
BrandJindal
Surface TreatmentHot Rolled
CertificationISO
Finish2B, Matt Finish, Hair Line, & PVC Coated
Sheet Size1250 mm x 2500 mm, 8Ft x 4 Ft, 1500 mm x 3000 mm & 2000 mm x 6000 mm
StandardASTM A 240 & ASME SA 240
Max Width1000 mm, 1250 mm, 1500 mm
Payment Terms100% Advance
Test ReportNABL Test Report Along with material
Alloys 316 (UNS S31600) and 316L (UNS S31603) are molybdenum-bearing austenitic stainless steels, which are more resistant to general corrosion and pitting/crevice corrosion than the conventional chromium-nickel austenitic stainless steels such as Alloy 304. These alloys also offer higher creep, stress-to-rupture, and tensile strength at elevated temperatures. In addition to excellent corrosion resistance and strength properties, the Alloys 316 and 316L Cr-Ni-Mo alloys also provide excellent fabric ability and formability which are typical of the austenitic stainless steels. Alloy 316/316L (UNS S31600/S31603) is a chromium-nickel molybdenum austenitic stainless steel developed to provide improved corrosion resistance to Alloy 304/304L in moderately corrosive environments. It is often utilized in process streams containing chlorides or halides. The addition of molybdenum improves general corrosion and chloride pitting resistance. It also provides higher creep, stress-to-rupture and tensile strength at elevated temperatures. It is common practice for 316L to be dual certified as 316 and 316L. The low carbon chemistry of 316L combined with an addition of nitrogen enables 316L to meet the mechanical properties of 316. Alloy 316/316L resists atmospheric corrosion, as well as, moderately oxidizing and reducing environments. It also resists corrosion in polluted marine atmospheres. The alloy has excellent resistance to intergranular corrosion in the as-welded condition. Alloy 316/316L has excellent strength and toughness at cryogenic temperatures. Alloy 316/316L is non-magnetic in the annealed condition, but can become slightly magnetic as a result of cold working or welding. It can be easily welded and processed by standard shop fabrication practices.

Standard
ASTM A 240
ASME SA 240
AMS 5524/5507
QQ-S 766

Corrosion Resistance
In most applications Alloy 316/316L has superior corrosion resistance to Alloy 304/304L. Process environments that do not corrode Alloy 304/304L will not attack this grade. One exception, however, is in highly oxidizing acids such as nitric acid where stainless steels containing molybdenum are less resistant. Alloy 316/316L performs well in sulfur containing service such as that encountered in the pulp and paper industry. The alloy can be used in high concentrations at temperatures up to 120°F (38°C). Alloy 316/316L also has good resistance to pitting in phosphoric and acetic acid. It performs well in boiling 20% phosphoric acid. The alloy can also be used in the food and pharmaceutical process industries where it is utilized to handle hot organic and fatty acids in an effort to minimize product contamination. Alloy 316/316L performs well in fresh water service even with high levels of chlorides. The alloy has excellent resistance to corrosion in marine environments under atmospheric conditions.

 

The higher molybdenum content of Alloy 316/316L assures it will have superior pitting resistance to Alloy 304/304L in applications involving chloride solutions, particularly in an oxidizing environment.

In most instances, the corrosion resistance of Alloys 316 and 316L will be roughly equal in most corrosive environments. However, in environments that are sufficiently corrosive to cause intergranular corrosion of welds and heat-affected zones Alloy 316L should be used because of its low carbon content.

 

Applications
Chemical and Petrochemical Processing — pressure vessels, tanks, heat exchangers, piping systems, flanges, fittings, valves and pumps
Food and Beverage Processing
Marine
Medical
Petroleum Refining
Pharmaceutical Processing
Power Generation — nuclear
Pulp and Paper
Textiles
Water Treatment


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