Yosun (Tianjin) Piping Engineering Co., Ltd. is one of the most credible manufacturers and suppliers of astm a335 p9 pipe in China. Please feel free to wholesale customized astm a335 p9 pipe at competitive price from our factory. If you have any enquiry about quotation, please feel free to email us.
ASTM A335 / ASME SA335 Pipe named chrome moly pipe as they have a high level of Chromium and Molybdenum.
Chromium will increase oxidation resistance and provides high-temperature strength, along with the better tensile & yield strength and proper hardness at room temperature. When the chromium levels are above 12%, it can be classified as stainless steel.
Molybdenum increases the overall strength, resistance, elasticity, hardenability and overall quality, moly ensures that the material is more resistant to softening, restrains the growth of grains and lessens the chances of embrittlement. It is the single additive that is responsible for the increase in high temperature resistance and it also improves the corrosion resistance to steel.
Chemical Composition
|
Chemical Composition % |
|||||||
|
Grade |
C |
Mn |
P |
S |
Si |
Cr |
Mo |
|
P9 |
0.15 max |
0.30-0.60 |
0.025 max |
0.025 max |
0.25-1.00 |
8.00-10.00 |
0.90-1.10 |
Mechanical Properties
|
Yield strength Rp0.2 (Mpa) |
Tensile strength Rm (Mpa) |
|
205 (≥) |
415 (≥) |
Heat Treatment
|
Heat treatment temperature range |
|
Heat treated: 1250°F |
Functional Use
Alloy steel grade P9 is used in a variety of applications such as gas turbine blades, exhaust manifolds, fasteners, piping components, and steam turbines due to its excellent heat treatment properties, which allow it to withstand high temperatures without compromising its strength or corrosion resistance.
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