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China Wholesale Gas Rounded Fitting Suppliers - High-Quality Alloy Lsaw Pipe Wholesale – Zhongshun Detail:
| ASTM AND ASME |
| Product Name |
Executive Standard |
Dimension (mm) |
Steel Code / Steel Grade |
| Seamless Ferritic and Austentic Alloy Steel Boiler, Superheater and Heat-Exchanger Tubes |
ASTM A213 |
Ø10.3~426 x WT1.0~36 |
T5, T9, T11, T12, T22, T91 |
| Seamless Ferritic Alloy Steel Pipes for High Temperature Use |
ASTM A335 |
Ø1/4″~42″ x WT2~120mm |
P5, P9, P11, P12, P22, P91, P92 |
| Seamless Carbon and Alloy Steel for Mechanical Tubing |
ASTM A519 |
Ø16″~42″ x WT10~100mm |
4130, 4130X, 4140 |
| EN |
| Product Name |
Executive Standard |
Dimension (mm) |
Steel Code / Steel Grade |
| Seamless Ferritic Alloy Steel Pipes for High Temperature Use |
EN10216-2 |
Ø8″~42″ x WT15~100 |
13CrMo4-5, 1-CrMo9-10, X10CrMoVNb9-1, 15NiCuMoNb5-6-4 |
Alloy Steel Pipe is used in applications which require moderate corrosion resistance properties with good durability and at an economical cost. … There are two classes of alloy steels - high alloys and low alloy steels.
About Low alloy piping materials are often called chrome moly materials because of the chemical makeup of Molybdenum (Mo) and Chromium (Cr). Chromium increases the hardness and strength and only minimally reduces elasticity. Molybdenum improves tensile strength and especially heat resistance.
3.2. 1.2 Grades of steel used
| Pipe grade and yield strength |
Pipe wall thickness required (in.) |
MAWP (psi) |
| Grade B (35,000 psi) |
0.337 |
3774 |
| Grade X-42 (42,000 psi) |
0.237 |
3185 |
| Grade X-46 (46,000 psi) |
0.219 |
3219 |
| Grade X-52 (52,000 psi) |
0.188 |
3120 |
The two types of pipes produced through these technologies are longitudinal-submerged arc-welded (LSAW) and spiral-submerged arc-welded (SSAW) pipes. LSAW are made by bending and welding wide steel plates and most commonly used in oil and gas industry applications.



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