20mn2 Alloy Steel Round Bar

20mn2 Alloy Steel Round Bar Manufacturer In India
₹55 - ₹91

Minimum Order : 200 unit

Customization as per requirements

Specification Details
Size Range16mm to 250mm
Length1-6meter
StandardsAstm, Asme, Din, Nf, Jis, En, Ios
FinishedBlack, Bright, Cold Drawn, Polish, Polished, Centreless Ground

20Mn2 Alloy Steel Round Bar Manufacturer in India


Nippon Alloys Inc is one of the reliable 20mn2 Alloy Steel Round Bar manufacturers that has been known to provide durable and accurately engineered bars which can be used in the manufacture of automotive parts, machinery components, and structural use. These bars are very hardenable, toughenable, and consistent in their medium-load operations.

• Excellent wear resistance

• Multiple diameters finish of surface.

• Customer length customization of diverse applications.


We test our bars of 20Mn2 alloy steel against consistency and we are backed up by our b2b portal, hence sourcing our products becomes quicker and simpler among the industrial customers. They are suitable in shafts, fasteners, and those heavy duty equipment that should be dependable.

• Stringent tolerances and batch uniformity.

• Fabrication machinability is good.

• Consistent delivery, service and speedy supply.


Chemical Composition – 20Mn2 Alloy Steel Round Bar

ElementPercentage (%)
Carbon (C)0.17 – 0.24
Manganese (Mn)1.40 – 1.80
Silicon (Si)0.10 – 0.35
Sulphur (S)≤ 0.040
Phosphorus (P)≤ 0.040
Iron (Fe)Balance

Mechanical Properties – 20Mn2 Alloy Steel Round Bar

PropertyValue
Tensile Strength540 – 690 MPa
Yield Strength≥ 355 MPa
Elongation≥ 16%
Hardness (Brinell)170 – 220 HB
Impact StrengthGood
Reduction of Area≥ 40%

Physical Properties – 20Mn2 Alloy Steel Round Bar

PropertyValue
Density7.85 g/cm³
Melting Point~1420°C
Thermal Conductivity46 W/m·K
Modulus of Elasticity210 GPa
Electrical Resistivity0.15 µΩ·m
20Mn2 Alloy Steel Round Bar is a medium carbon manganese steel known for its good strength, toughness, and wear resistance. It offers excellent mechanical properties after heat treatment, making it suitable for applications requiring durability and load-bearing performance. This alloy steel exhibits good machinability and moderate weldability, allowing it to be easily fabricated into precision components. Commonly used in automotive and engineering industries, 20Mn2 Alloy Steel Round Bars are ideal for manufacturing shafts, axles, gears, forgings, and structural parts. Their reliable performance under stress and impact conditions makes them a preferred choice for heavy-duty industrial and mechanical applications.

Type of Sub-products

  • Hot Rolled Bar
    Hot Rolled Bar

    Hot Rolled Bar

    Produced at elevated temperatures, this type offers a rough finish and is commonly used for structural purposes in construction and machinery bases.

  • Peeled Bar
    Peeled Bar

    Peeled Bar

    Surface treated for precision and finish, peeled bars are commonly used in applications needing dimensional accuracy, such as precision tools or guide rods.