Round Bar

An unalloyed medium carbon steel. En8 is a medium strength steel, good tensile strength. Suitable for shafts, stressed pins, studs, keys etc. En8 carbon steel is also readily machinable in any condition. En8 steels are generally used in the as supplied untreated condition. But En8 steels can be further surface-hardened by induction processes, producing components with enhanced wear resistance. Steel En8 materials in its heat-treated forms possesses good homogenous metallurgical structures, giving consistent machining properties. En8 steel grade belongs to the standard of BS 970-1955, which is a standard for wrought steel for mechanical and allied engineering purpose. In BS 970 standards.

En8 Steel Round Bar: 8mm-1600mm

En8 Steel Cold Drawn Bar: 5mm-70mm

En8 Carbon Steel Flat & Plate: 10-1500mm x 200-3000mm

En8 steel material is suitable for the all general engineering applications requiring a higher strength than mild steel such as:

general-purpose axles.
shafts,
gears,
bolts and studs.
spindles,
automotive and general engineering components,
other general engineering parts etc.

AISI 4140 steel is a low alloy steel containing chromium, molybdenum, and manganese. It is widely used across numerous industries and is an excellent material choice due to its toughness, high fatigue strength, and abrasion and impact resistance. AISI 4140 alloy steel has high ductility. It can be formed using conventional techniques in the annealed condition. It requires more pressure or force for forming because it is tougher than plain carbon steels. the mechanical properties of this steel will be affected if it is welded in the heat-treated condition, and post-weld heat treatment should be performed. After the annealing is complete, the steel is heated to a molten phase again so that it can be poured into the desired form and can either be hot worked or cold worked through rollers or other tools to reach the desired thickness. Of course, there are other special operations that can be added to this to reduce mill scale or improve mechanical properties. AISI 4140 is a low alloy steel. Low alloy steels rely on elements other than just iron and carbon to enhance their mechanical properties. In AISI 4140, additions of chromium, molybdenum, and manganese are used to increase the strength and hardenability of the steel. The additions of chromium and molybdenum are why AISI 4140 is considered a “chromoly” steel.

4140 steel material is suitable for

Shaft
Crankshaft
Bolt
Nut
Gear
Slide
Steel Collet

• Forging or hot rolling
• Normalizing
• Soft annealing 
• Core hardening 
• Intermediate      annealing 
• Case hardening

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Tool Steel-D2 steel is an air hardening, high-carbon, high-chromium tool steel. It has high wear and abrasion resistant properties. It is heat treatable and will offer a hardness in the range 55-62 HRC, and is machinable in the annealed condition. D2 steel shows little distortion on correct hardening. D2 steel’s high chromium content gives it mild corrosion resisting properties in the hardened condition.

Typical applications for D2 Steel:

Stamping or Forming Dies
Punches
Forming Rolls
Knives, slitters, shear blades
Tools
Scrap choppers
Tyre shredders

An alloy is a combination of metals or metals combined with one or more other elements. For example, combining the metallic elements gold and copper produces red gold, gold and silver becomes white gold, and silver combined with copper produces sterling silver. Elemental iron, combined with non-metallic carbon or silicon, produces alloys called steel or silicon steel. The resulting mixture forms a substance with properties that often differ from those of the pure metals, such as increased strength or hardness.

Alloy steel is steel that is alloyed with a variety of elements in total amounts between 1.0% and 50% by weight to improve its mechanical properties. Alloy steels are broken down into two groups: low alloy steels and high alloy steels. Every steel is an alloy, but not all steels are called "alloy steels". The simplest steels are iron (Fe) alloyed with carbon (C) (about 0.1% to 1%, depending on type). However, the term "alloy steel" is the standard term referring to steels with other alloying elements added deliberately in addition to the carbon. Common alloyants include manganese (the most common one), nickel, chromium, molybdenum, vanadium, silicon, and boron. Less common alloyants include aluminium, cobalt, copper, cerium, niobium, titanium, tungsten, tin, zinc, lead, and zirconium.

The following is a range of improved properties in alloy steels (as compared to carbon steels): strength, hardness, toughness, wear resistance, corrosion resistance, hardenability, and hot hardness. To achieve some of these improved properties the metal may require heat treat.

Some of these find uses in exotic and highly-demanding applications, such as in the turbine blades of jet engines, in spacecraft, and in nuclear reactors. Because of the ferromagnetic properties of iron, some steel alloys find important applications where their responses to magnetism are very important, including in electric motors and in transformers.

Types of Alloy steel:
Low Alloy Steel.
High Alloy Steel.

The most important and desired changes in alloy steel are:

Increased hardenability.
Increased corrosion resistance.
Retention of hardness and strength

The most commonly used grades of Alloy:

Grade 4140 – Chromium Molybdenum Steel.
Grade 4340 – Nickel-Chromium-Molybdenum Steel.
Grade 6150 – Chromium Vanadium Steel.
Grade 8620 – HSLA -Nickel-Chromium-Molybdenum Steel.

Applications:

Shaft
Crankshaft
Bolt
Nut
Gear
Slide
Steel Collet

Material Form:

Round Bar
Hex Bar
Rectangular Bar
Black Bar
Flat Bar
Forged Bar
Threaded Bar

 Size Range: 16mm – 130 mm

Applications: Machinery parts, buildings, bridges, crane, boom, chassis and most structural activities.

Hard Chrome Bar
The hard chromium poiston rods produced by our company come with more than JIS S45C material but also in JIS S45C, SAE1045, DIN CK45, where the rods first undergo precision milling and processing, and are then put through gard surface chromium treatment, allowing a surface precision level of f8, and a surface hardness reaching HV850 minimum and up, which not only help to improve wear resistance but also help to extend the life cycle of the rods, thus helping the customer save cost. Our range of products is made up from superior quality of raw material and is being offered at market leading prices. These bars are extensively recognized for optimum performance and robust construction. Our products are also widely appreciated for their elegant finish, resistance from corrosion and durability.                               
 
Purpose:
Piston Rod (Hard Chrome Piston Rod) for pneumatic and hydraulic cylinder.Piston Rod (Hard Chrome Piston Rod) for pneumatic and hydraulic cylinder.
 
External Diameter Accuracy: F8
Surface Roughness: Ra0.2μm ~ Ra0.4μm
Hard Chrome Thickness: 20 Micron ± 10%
Surface Hardness: HV 850 (Minimum) up
Straightness: 0.15-0.25/1000mm
Standard Length: 3M ~ 6M
Standard Size: 4 mm ~ 200 mm Dia
Material: JIS S45C, SAE1045, DIN CK45, The hard chrome piston rod and hard chrome shaft are special specifications & materials can be made Customer request based on.
Features:
Low Friction
Excellent Wear Resistance
Good Corrosion Resistance
Extended Life of Parts
 
Application/Usage:
Pneumatic / Hydraulic Cylinder Shaft
Textile Components
Pump Shafts & Rotors
Fitness Equipment
Automobile & Mechanical Components
Plastic & Rubber Rolls, Moulds, Dies, Screws etc

7075 Aluminium Round Bar

Doshi Impex India is one of the leading Aluminium Round Bar Alloy 7075T6 / T6511 based suppliers, carrying an extensive stock and providing professional Aluminium Round Bar Alloy 7075T6 / T6511 processing services.

Aluminium Round Bar Alloy 7075T6 / T6511 is stocked, processed and supplied from a diameter of 1″ to 12″ (25 mm to 300 mm).

The Aluminium Round Bar Alloy 7075T6 / T6511 range comprises aerospace QQ-A-Grades, AMS-Grades with a choice of imperial or metric diameters. We also supply Aluminium Round Bar Alloy 7075T6 / T6511 to order and stock and supply to your specific requirements

7075–T6 Aluminium is primarily used in aerospace applications and is often referred to as the Strongest Aluminium Grade. Alloy 7075 has the strength of many steels, while retaining aluminium’s lightweight qualities.

7075 Aluminium Round Bar 
7075 Aluminium Square Bar
7075 Aluminium Flat Bar
7075 Aluminium Flat Bar T6
7075 Aluminium Square Bar T6
7075 Aluminium Round Bar  T6 

Forged metals tend to be harder, stronger and more durable than cast forms or machined parts. The pressure alone forms the steel into the right shape, and the metal’s response to such overwhelming force tends to align the grain. That means you get more cogent internal structure and a far greater ability to withstand warping and wearing.

There are actually four general variations of a forged bar which include: round bars, square bars, flat bars and hex bars. All Metals has the forging capabilities to produce bars from the following alloy types:

Alloy Steel
Carbon Steel
Stainless steel
Titanium
Nickel
Aluminium

Applications:

Automotive Truck
Agricultural Machinery & Equipment’s
Valves, Fittings, Oil Field Applications
Hand Tool & Hardware
Aerospace

420 Round Bar Martensitic stainless steels are designed for high hardness, and other properties are compromised to an extent. Their functional operating temperature range is restricted by their loss of ductility at sub-zero temperatures, and loss of strength by over-tempering at high temperatures.

Alloy designations of 1.4021 is similar, but it may not be a direct equivalent to: 420, UNS42000, 1.4021, 1.4024, 1.4028, 1.4029, 1.4030, and 1.4034. It is supplied in the form of a bar.

Common Trade Names
420 Round Bar, 420 Round, Stainless steel 420 Round , SS 420 Round bar, 420 Bar

Chemical Composition %

Features:
Readily weldable
Resists atmospheric and exhaust gas corrosion.
In most atmospheres a light surface rust will form which inhibits further corrosion but makes the surface less appealing.
Generally classified as resistant to scaling in intermittent service up to 1499oF (815oC) and up to 1247oF (675oC) in continuous service.

Applications
Kitchenware
White goods
Solar heaters
Slate hooks
Coins

Molybdenum Rods

Molybdenum is silvery-white metal that is highly resistant to corrosion and ductile in nature. It is having the highest melting points of all the pure elements, only the tungsten and tantalum having higher melting points. The alloy is micronutrient that for life is essential. It as a transport metal, molybdenum is easily forming compounds that easily form compounds with other compounds. Molybdenum is comprising of 1.2 parts per million of the earth crust by the weight. The tests are also conducted to assure the quality of rods manufacturing. The tests done are namely positive material identification test, chemical test, intergranular corrosion test, hardness test, mechanical test, flattening/flaring test etc.

Molybdenum Bars, Molybdenum Round Bar, ASME SA387 Molybdenum Round Bar, ASTM A387 Alloy Steel Rod, Molybdenum Rods Suppliers, ASTM A240 SS J4 Hot Rolled Plates, Molybdenum Round Bar in mumbai, India

Rods Specification

Standard: ASTM B387

Material: Mo >99.95%

Density: 9.8 ~ 10.2g/cc

Products Forms

Molybdenum Rod

ASTM A387 Alloy Steel Rod

ASME SA387 Molybdenum Rods Exporter

ASME SA387 Alloy Steel Rod

SA387 Molybdenum Round Bars

ASME SA387 Molybdenum Round Bars

Molybdenum Bars Exporter