Free 45Mn Steel Chemical Composition
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Free 45Mn Steel Chemical Composition

Chinese grade: 45Mn Standard: GB/T699-1999 US Grade: 1046 Standard: ASTM A29/ A29M-02 Japanese grade: SWRCH45K Standard: JIS G3507/1-2005 German grade: C45 Standard: EN 10083/2-1991
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Product Introduction

45Mn steel is a high-quality alloy steel that is widely used in various industries such as construction, manufacturing, and engineering. It has good strength, toughness, and wear resistance, and can be easily machined and welded.

The chemical composition of 45Mn steel is as follows:

- Carbon (C): 0.42-0.49%
- Silicon (Si): 0.17-0.37%
- Manganese (Mn): 0.50-0.80%
- Phosphorus (P): 0.035% max
- Sulfur (S): 0.035% max

With this chemical composition, 45Mn steel exhibits excellent mechanical properties and can withstand high stresses and strains. It is known for its exceptional hardenability, which enables it to be heat-treated to achieve increased hardness and wear resistance.

In addition to its mechanical properties, 45Mn steel is also known for its superior machinability and weldability. This makes it an ideal material for use in a wide range of applications, including gears, shafts, and machine parts.

In conclusion, 45Mn steel is a high-quality and versatile alloy steel that offers excellent mechanical, machinability, and weldability properties. Its chemical composition ensures that it can withstand high stresses and strains, making it a reliable and durable material for various industrial applications.

product-700-700

product-700-700

Hot work and heat treatment temperatures


Grade

Delivery State

T.S.
N/mm2
Min

Y.S.
N/mm2
Min

A,%
Min

Z,%
Min

Hardness,
HB,max

Forging ratio

Grain Size
(level)

Nonmetal ratio

Hot rolled,
forged

Annealing

45Mn

Hot rolled, forged, or heat treatment

600

355

16

40

229

197

≥ 4:1

≥ 6

≤ 2.0

Hot work and heat treatment temperatures


Grade

Delivery State

T.S.
N/mm2
Min

Y.S.
N/mm2
Min

A,%
Min

Z,%
Min

Hardness,
HB,max

Forging ratio

Grain Size
(level)

Nonmetal ratio

Hot rolled,
forged

Annealing

45Mn

Hot rolled, forged, or heat treatment

600

355

16

40

229

197

≥ 4:1

≥ 6

≤ 2.0

 

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