Seamless alloy boiler tube
ASTM A334 Grade 1 Carbon Steel Pipe is a premium alloy steel pipe that provides excellent resistance to impact and bending stress, ensuring stability under extreme temperature and pressure conditions. This steel pipe contains elements such as manganese, molybdenum and silicon, which significantly improves strength and durability. It is not only corrosion-resistant, but also has good heat treatment properties.
ASTM A334 Grade 1 cryogenic steel pipe has a minimum tensile strength of 380 MPa and a minimum yield strength of 205 MPa, meeting the requirements of various applications. In addition, this steel pipe is available in many different types or grades, including grade 3, grade 4, grade 6, grade 7, grade 8 and grade 9, etc. to meet the needs of different temperature ranges and specific applications.
ASTM A334 carbon steel seamless pipe has a uniform wall thickness up to 3/4 inches, which can meet the needs of use in various harsh low-temperature environments. This kind of steel pipe is widely used in various fields such as oil and gas industry, pressure vessels, boilers, heat exchangers, pump valves, etc. It is an ideal choice for cryogenic pressure pipeline and pressure vessel applications.
Chemical Requirements for ASTM A334 Grade 1 Seamless Tubes
| Grade | Mfg. Process | Chemical composition(%) | |||||||
| C | Si | Mn | P | S | Ni | Cr | Mo | ||
| Grade 1 | S, E, AT | 0.30Max | - | 0.40~1.06 | 0.05Max | 0.60Max | - | - | - |
| Grade 3 | S, E, AT | 0.19Max | 0.18~0.37 | 0.31~0.64 | 0.05Max | 0.050Max | 3.18-3.82 | - | - |
Tensile Requirements for ASTM A334 Alloy thick wall seamless pipe
| Grade | Tensile Test MPa or N/mm2 | Remaks (Similar to JIS) |
|
| Min Yield point | Tensile Strength | ||
| Gr. 1 | 205 | 380Min | Impact Test(J) 2V 18 |
| Gr. 3 | 240 | 450Min | 2V 18 |
ASTM A334 alloy Steel Press Pipe
Specifications:ASTM A 334, ASME SA 334
Size Range:4" NB to 26" NB
Wall Thickness:2.0mm-14 mm
Schedules:20, 30, 40, Standard (STD), Extra Heavy (XH), 80, 100, 120, 140, 160, XXH & heavier
Type:Seamless / Welded/ Low Temperature
Length:5800mm; 6000mm; 6096mm; 7315mm; 11800mm; and so on.
Outer Dimensions:6mm-1020mm
Grade:Grade 1,3,6
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