AISI 4145 alloy seamless steel tube, as a typical representative under ASTM A519 standard, is a chromium-molybdenum alloy steel specifically designed for machining applications. Through optimized alloy composition and heat treatment processes, it combines high strength (tensile strength ≥655 MPa), corrosion resistance (chromium content 0.80-1.10%), and excellent weldability (carbon equivalent ≤0.59). It is widely used in fields such as oil drilling, aerospace, and high-pressure equipment manufacturing.
Specification
Size : OD: 10.3-323.9mm, WT: 1.65-40mm, Length: 0.5mtr-20mtr
Standard & Grade : ASME SA519 / ASTM A519 Grade 4130, 4130X, 4140, 4145,1026, 1020, 1045
ASME SA 519 GR.4145 Boiler Piping. ASME SA 519 GR.4145 Boiler Tubing. We are as well way forward in supplying, distributing, trading and importing a complete collection of ASTM A519 GR.
Tubing End: Bevel end, Plain end;
Application of ASME SA519 4145 Steel tube / ASTM A519 4145 Alloy Steel Seamless tubes :
Chemical composition:
|
|
C, % |
Mn, % |
P, max, % |
S, max, 5 |
Si, % |
Ni, % |
Cr, % |
|
1010 |
0.08-0.13 |
0.3-0.6 |
0.04 |
0.05 |
- |
- |
- |
|
1016 |
0.13-0.18 |
0.6-0.9 |
0.04 |
0.05 |
- |
- |
- |
|
1020 |
0.18-0.23 |
0.3-0.6 |
0.04 |
0.05 |
- |
- |
- |
|
1026 |
0.22-0.28 |
0.6-0.9 |
0.04 |
0.05 |
- |
- |
- |
|
1035 |
0.32-0.38 |
0.6-0.9 |
0.04 |
0.05 |
- |
- |
- |
|
1045 |
0.43-0.50 |
0.6-0.9 |
0.04 |
0.05 |
- |
- |
- |
|
1541 |
0.36-0.44 |
1.35-1.65 |
0.04 |
0.05 |
- |
- |
- |
|
4130 |
0.28-0.33 |
0.40-0.60 |
0.04 |
0.04 |
0.15-0.35 |
- |
0.8-1.1 |
|
4135 |
0.33-0.38 |
0.7-0.9 |
0.04 |
0.04 |
0.15-0.35 |
- |
0.8-1.1 |
|
4140 |
0.38-0.43 |
0.75-1.00 |
0.04 |
0.04 |
0.15-0.35 |
- |
0.8-1.1 |
|
4145 |
0.43-0.48 |
0.75-1.00 |
0.04 |
0.04 |
0.15-0.35 |
- |
0.8-1.1 |
|
4340 |
0.38-0.43 |
0.6-0.8 |
0.04 |
0.05 |
0.15-0.35 |
1.65-2.00 |
0.7-0.9 |
|
4130: Mo 0.15-0.25 4140: Mo 0.15-0.25 4145: Mo 0.15-0.25 4340: Mo 0.20-0.30 |
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