SCM440/ 4140 Alloy Structural Steel
SCM440/ 4140 Alloy Structural Steel 1,000 VNĐ
1.7225 Tool Steel
|
Standards |
DIN |
AISI |
JIS |
ГОСТ |
|
42CrMo4 |
1.7225 |
4140 |
SCM440 |
38XM |
ALTA SPECIAL STEEL supply DIN 1.7225 / AISI 4140 in round bar, especially for BIG ROUNDS!
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.
We welcome your inquiries for tool steel, please contact us for quotation [email protected]
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Chemical Composition
|
C |
Si |
Mn |
P |
S |
Cr |
Mo |
|
0.40-0.45 |
0.15-0.35 |
0.75-1.00 |
≤0.030 |
≤0.030 |
0.80-1.10 |
0.15-0.25 |
Product Range
Round bars : Dia 16mm - 800mm
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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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Heat Treatment
|
Way |
Temperature[℃] |
Remark |
|
Forging |
850 - 1050 |
|
|
Soft annealing |
650 - 700 |
Max. 248HB after annealing |
|
Quenching |
820 - 850 |
Cool in oil |
|
Tempering |
540 - 680 |
|
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