A335P9 steel pipe is an alloy steel pipe suitable for working in high temperature environment. A335P9 contains a lot of chemical elements like nickel, tungsten, molybdenum, chromium, silicon, manganese, vanadium and small quantities of a few commonly used elements such as sulphur , Silicon and phosphorous. These elements enhance the strength and chemical resistance of A335P9.
| C, % |
Mn, % |
P, % |
S, % |
Si, % |
Cr, % |
Mo, % |
|
0.15 max |
0.30-0.60 |
0.025 max |
0.025 max |
0.25-1.00 |
8.0-10.0 |
0.90-1.10 |
|
Tensile Strength , MPa |
Yield Strength, MPa |
Elongation, % |
|
415 min |
205 min |
30 min |
A335P9 Mechanical Tests Specified:
Transverse or Longitudinal Tension Test and Flattening Test, Hardness Test, or Bend Test
For material heat treated in a batch-type furnace, tests shall be made on 5% of the pipe from each treated lot. For small lots, at least one pipe shall be tested.
For material heat treated by the continuous process, tests shall be made on a sufficient number of pipe to constitute 5% of the lot, but in no case less than 2 pipe.
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