4130/1.7218/SCM 430/25CrMo4 | Low Alloy steel

4130

SpecificationASTM A322, ASTM A29

The premium high speed low alloy steel produced by GMTC can be easily processed after being heat treated properly. It also exhibits superior ductility, good resistance to atmospheric corrosion, and high strength

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Introduction
Specifications

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Introduction

Product properties

˙High strength

˙High toughness

˙Easy welding

˙Easy machining

Industrial Applications

˙Machine industry˙Automobile industry˙Aerospace˙Oil, gas, and water

˙Mainly used for forged parts in the aerospace, oil, and natural gas industries. It is also widely used in the automobile, agricultural and defense industries.

˙Typically used to forge gear and shafts, spindle, fixture, and collar.

Specifications

Chemical composition (wt. %)

Element

Min.

0.28

0.15

0.40

0.80

0.15

Max.

0.33

0.35

0.60

0.025

0.25

1.10

0.25

0.35

Physical Property

Density (g/cm^3)

7.87

Thermal Expansion Coefficient

Temperature (℃)

10^-6/℃

12.5

Thermal Conductivity

Temperature (℃)

W/m·K

Mechanical Property

Items

Annealed

Hardness (HBW)

229 max.

Size Ranges

Products

Diameter (mm)

Length (mm)

Rolled bar

10~95

3,000~5,700

Forged bar

95.2-600

3,000~5,700

Billet

130x130, 140x140, 150x150, 160x160

7,000 max

Flat bar

80x80 (min.)

Based on the customer needs

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Low Alloy steel bar 4130/1.7218/SCM 430/25CrMo4 – GMTC

4130

Product properties

Industrial Applications

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