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DIN 1.7225 / AISI 4140

DIN 1.7225 / AISI 4140



Product Description

1.7225 / 42CrMo4 Alloy Structure Steel

Standards

DIN

AISI

JIS

ГОСТ

42CrMo4

1.7225

4140

SCM440

38XM

 

Chemical composition (typical analysis in %)

C

Si

Mn

P

S

Cr

Mo

0.38-0.45

0.15-0.35

0.75-1.00

≤0.030

≤0.030

0.80-1.10

0.15-0.25

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Steel properties :

1.7225 is a chromium molybdenum alloy steel specification widely used in the oil and gas industry. Similar to grade AISI 4130 but with a slightly higher carbon content. The higher carbon content of AISI 4140 gives greater strength and heat treatment capabilities in comparison to AISI 4130, however it does have inferior weldability characteristics.

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Applications :

 

Widely used for a variety of applications in the oil and gas sector. Typical applications include components such as valve bodies, pumps and fittings.

 

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Size range :

Diameter (mm)

Thickness (mm)

Width (mm)

130 - 1200

 

 

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Delivery condition :

Soft annealed to max. 248 HB / Quenched and Tempered (+QT)

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Heat Treatment:

Soft annealing

Temperature(°C)

Cooling

Hardness

650 - 700

furnace

max. 248 HB

 

Forging

Temperature(°C)

Cooling

 

 

850 - 1050

furnace

 

 

Hardening

Temperature(°C)

Cooling

Tempering

 

820 - 850

oil or air

see tempering diagram

 

 

 

Remarks: All technicial information is for reference only.

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