The chemical composition of ASTM A519 steel pipe does have a lower melting point than some other grades of pipe.
In addition to corrosion resistance, ASTM A519 pipe has excellent mechanical properties. Tensile strength (70 ksi) and yield strength (45 ksi) are both important properties of these pipes. These high-strength properties make ASTM A519 pipe excellent in applications that withstand high pressures and temperatures.
ASTM A519 seamless pipe is available in sizes ranging from 0.250 inches to 12.000 inches in outside diameter (OD) and in wall thicknesses ranging from 0.035 inches to 2.000 inches. These dimensions are specified in accordance with the ASTM A519 standard for high-quality carbon and alloy steel pipe commonly used in the oil and gas industry.
Compared to 4130 boiler tube, 4140 boiler tube has a higher carbon content and higher chromium and molybdenum content. This makes 4140 boiler tube stronger and more wear-resistant, but also more difficult to weld.
During the manufacturing process, 4140 boiler tubes need to go through multiple processes, including smelting, continuous casting, rolling and heat treatment. The strict control of these processes ensures the excellent performance and quality of 4140 boiler tubes.
ASTM A519 pipe is a high quality pipe suitable for a variety of high temperature and low pressure applications.
Chemical Composition of ASTM A519 Steel Pipe
|
Grade |
C |
Mn |
P≤ |
S≤ |
Si |
Cr |
Mo |
|
1008 |
≤0.10 |
0.30-0.50 |
0.04 |
0.05 |
- |
- |
- |
|
1026 |
0.22-0.28 |
0.60-0.90 |
0.04 |
0.05 |
- |
- |
- |
|
4130 |
0.28-0.33 |
0.40-0.60 |
0.04 |
0.05 |
0.15-0.35 |
0.80-1.10 |
0.15-0.25 |
|
4140 |
0.38-0.43 |
0.75-1.00 |
0.04 |
0.05 |
0.15-0.35 |
0.80-1.10 |
0.15-0.25 |
Mechanical Properties of ASTM A519 Pipe
|
Grade |
Condition |
MPa Tenslle Point |
Yield Point |
Elongation |
|
1020 |
CW |
≥414 |
≥483 |
≥5% |
|
SR |
≥345 |
≥448 |
≥10% |
|
|
A |
≥193 |
≥331 |
≥30% |
|
|
N |
≥234 |
≥379 |
≥22% |
|
|
4130 |
SR |
≥586 |
≥724 |
≥10% |
|
A |
≥379 |
≥517 |
≥30% |
|
|
N |
≥414 |
≥621 |
≥20% |
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