OEM Factory for Carbon Steel Seamless Pipe Alloy Steel Pipe ASTM A335 Iron Tube
Short Description:
ASTM A335 is often called as chrome moly pipe because of the chemical contain of Molybdenum (Mo) and Chromium (Cr). Molybdenum increases the strength of steel and Chromium (or chrome) is the essential constituent of stainless steel. The composition chrome moly alloy steel pipe make it ideal for use in power plants, refineries, petrol chemical plants, and oil field services where fluids and gases are transported at extremely high temperatures and pressures.
It truly is our accountability to meet your needs and proficiently provide you. Your pleasure is our best reward. We are on the lookout ahead to the stop by for joint development for OEM Factory for Carbon Steel Seamless Pipe Alloy Steel Pipe ASTM A335 Iron Tube, Our hugely specialized process eliminates the component failure and offers our customers unvarying high quality, allowing us to control cost, plan capacity and maintain consistent on time delivery.
It truly is our accountability to meet your needs and proficiently provide you. Your pleasure is our best reward. We are on the lookout ahead to the stop by for joint development for China Seamless Carbon Steel Tube and Seamless Steel Pipe, We are going to supply much better solutions with diversified designs and qualified services. At the same time, welcome OEM, ODM orders, invite friends at home and abroad together common development and achieve win-win, integrity innovation, and expand business opportunities! If you have any question or will need more information be sure to feel free to contact us. We have been looking forward to receiving your enquiries soon.
Strong resistance to rupturing at high temperatures and high pressures.
May be used for Hydrogen Sulfide Corrosion Services.
Resistant to cracking from hydrogen attack and embrittlement.
Resistant to hot sulfide corrosion cracking.
Can be used for NACE Applications where sour environments are under high temp and pressure.
Can be used in NACE-MRO 175 Sour Service.
Ideal for creep rupture applications.
Can handle high temperatures with very low elasticity.
The types of alloy steel covered by the ASTM A335 – ASME SA335 specification are designed with a “P” prefix, from P5 to P92. Grades P11/P22 and P91/92 are typically found in power stations, whereas grade P5 and P9 are more common for application in the petrochemical industry. Grades P9, P91 are, in the list, the more expensive
| ASTM A335Low-Alloy Steel(Grade) | UNS equivalent | C≤ | Mn | P≤ | S≤ | Si≤ | Cr | Mo |
| P1 | K11522 | 0.10~0.20 | 0.30~0.80 | 0.025 | 0.025 | 0.10~0.50 | – | 0.44~0.65 |
| P2 | K11547 | 0.10~0.20 | 0.30~0.61 | 0.025 | 0.025 | 0.10~0.30 | 0.50~0.81 | 0.44~0.65 |
| P5 | K41545 | 0.15 | 0.30~0.60 | 0.025 | 0.025 | 0.5 | 4.00~6.00 | 0.44~0.65 |
| P5b | K51545 | 0.15 | 0.30~0.60 | 0.025 | 0.025 | 1.00~2.00 | 4.00~6.00 | 0.44~0.65 |
| P5c | K41245 | 0.12 | 0.30~0.60 | 0.025 | 0.025 | 0.5 | 4.00~6.00 | 0.44~0.65 |
| P9 | S50400 | 0.15 | 0.30~0.60 | 0.025 | 0.025 | 0.50~1.00 | 8.00~10.00 | 0.44~0.65 |
| P11 | K11597 | 0.05~0.15 | 0.30~0.61 | 0.025 | 0.025 | 0.50~1.00 | 1.00~1.50 | 0.44~0.65 |
| P12 | K11562 | 0.05~0.15 | 0.30~0.60 | 0.025 | 0.025 | 0.5 | 0.80~1.25 | 0.44~0.65 |
| P15 | K11578 | 0.05~0.15 | 0.30~0.60 | 0.025 | 0.025 | 1.15~1.65 | – | 0.44~0.65 |
| P21 | K31545 | 0.05~0.15 | 0.30~0.60 | 0.025 | 0.025 | 0.5 | 2.65~3.35 | 0.80~1.60 |
| P22 | K21590 | 0.05~0.15 | 0.30~0.60 | 0.025 | 0.025 | 0.5 | 1.90~2.60 | 0.87~1.13 |
| P91 | K91560 | 0.08~0.12 | 0.30~0.60 | 0.02 | 0.01 | 0.20~0.50 | 8.00~9.50 | 0.85~1.05 |
| P92 | K92460 | 0.07~0.13 | 0.30~0.60 | 0.02 | 0.01 | 0.5 | 8.50~9.50 | 0.30~0.60 |
| A335 Low-Alloy Pipe | UNS Number | Yield Strength ksi | Tensile Strength ksi | Elongation % | Hardness | |
| Rockwell | Brinell | |||||
| P1 | K11522 | 30 | 55 | 30 | – | – |
| P2 | K11547 | 30 | 55 | 30 | – | – |
| P5 | K41545 | 40 | 70 | 30 | – | 207 max |
| P9 | S50400 | 30 | 60 | 30 | – | – |
| P11 | K11597 | 30 | 60 | 20 | – | – |
| P12 | K11562 | 32 | 60 | 30 | – | 174 max |
| P22 | K21590 | 30 | 60 | 30 | – | – |
| P91 | K91560 | 60 | 85 | 20 | – | – |
Alloy Steel pipe are heat treated to achieve mechanical properties as per the desired alloying element. Below are some of the types of heat treatment.
Normalize Quench and Tempering.
Quench and Tempering.
Normalizing & Hardening.
Transverse/longitudinal: tension and flattening, hardness, bend tests- for material which has been heat-treated in batch furnaces, these tests shall be made on the 5% of the pipes from each heat lot number. For smaller lots, one pipe at a minimum has to be tested.
ASTM A335 Gr. P91 shall have a hardness of 250 HB / 265 HV (25 HRC).
Hydro testing: shall be applied to every length of pipe.
The non-destructive electric test is optional.It truly is our accountability to meet your needs and proficiently provide you. Your pleasure is our best reward. We are on the lookout ahead to the stop by for joint development for OEM Factory for Carbon Steel Seamless Pipe Alloy Steel Pipe ASTM A335 Iron Tube, Our hugely specialized process eliminates the component failure and offers our customers unvarying high quality, allowing us to control cost, plan capacity and maintain consistent on time delivery.
OEM Factory for China Seamless Carbon Steel Tube and Seamless Steel Pipe, We are going to supply much better solutions with diversified designs and qualified services. At the same time, welcome OEM, ODM orders, invite friends at home and abroad together common development and achieve win-win, integrity innovation, and expand business opportunities! If you have any question or will need more information be sure to feel free to contact us. We have been looking forward to receiving your enquiries soon.
