Home > Alloy Steel > Alloy Steel P91 Pipes
Alloy Steel P91 Pipe is an example of high-notch precision technology combined with a special mixture. These pipes contain key materials such as chromium, molybdenum and steel, providing unparalleled strength and performance. Their design provides exceptional properties, such as high strength, hardness, corrosion resistance and ability to withstand high temperatures. Widely used in industries such as oil and gas power generation and chemical processing, alloy steel P91 pipe is known for its reliability and durability. Whether used in pipelines, construction, or machinery for heavy loads, it is necessary for the efficiency and flexibility of industrial processes.
| Specialized in | Sizes in Large Diameter |
| OD | 19.05 milimeter – 114.3 milimeter |
| WT | 2.0 milimeter – 14 milimeter |
| Length | maximum 16000 milimeter |
| Form | Square, Hydraulic, Round, Rectangular, Etc. |
| Standard | SA335 P91, ASTM A335 P91 |
| Thickness | From 3 to 12 milimeter |
| Size | From 1/2 NB upto 36 NB |
| Schedule | Schedule 40, 80, 160, XS, XXS |
| Tolerance |
Cold rolled pipe: +/-0.05 milimeter
Cold drawn pipe: +/-0.1 milimeter |
| Craft | Cold drawn / Cold rolled |
| Type | ERW / Fabricated / Seamless / Welded |
| Length | Double Random, Cut Length, Single Random, . |
| Specialized in | SA335 P91 |
| Additional Testing | NACE TM0177, H2 SERVICE, NACE MR0175, IBR, NACE TM0284, SSC TEST, HIC TEST, etc. |
| C | Si | Mn | P | S | AL | Cr | Cu | Mo | N | Nb | Ni | V | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1.4903 | Min% | 0.08 | 0.30 | 8.0 | 0.85 | 0,030 | 0,060 | 0.18 | ||||||
| Max % | 0.12 | 0.50 | 0.60 | 0,020 | 0.005 | 0,040 | 9.50 | 0.30 | 1.05 | 0,070 | 0,100 | 0.30 | 0.25 | |
| Yield strength Rp0.2 (N / mm 2 ) | > = 450 | Normalized + tempered | |
|---|---|---|---|
| Yield strength Mpa / ksi | 415/60 | ASTM A 335 -P91 | |
| Tensile strength Rm (N / mm 2 ) | 620-850 | Normalized + tempered | |
| Elongation at break-A5 (%) min.lengths | > = 20 | Normalized + tempered | |
| Notched impact strength (J) across | 40 | transversely / normalized + tempered | |
| Tensile strength Rm N / mm 2 / ksi | 585/85 | ASTM A 335 -P91 | |
At PipingMart, we take pride in being the largest supplier and manufacturer in the UAE, offering cutting-edge solutions for all your piping needs. With state-of-the-art production plants strategically located in the UAE, we boast a vast inventory of over 25,000 tons of premium-quality materials readily available in stock.
Contact us to get a quick quote for your requirement.
We offer These Alloy Steel P91 Pipes as per DIN, ISO, JIS or ANSI Standard.
Alloy Steel P91 Pipes applications are as diverse as the industries they serve driven primarily by the aerospace, railway, construction and automotive industries with petrochemical, nuclear, medical, Oil & Gas, Chemical, Pharmaceutical, Food & Beverage, Nuclear, Thermal Power plants, Paper and Pulp, marine and mining, etc.
Yes, Alloy Steel P91 pipes can be welded using various methods such as TIG, MIG, and arc welding. However, due to their high chromium and molybdenum content, proper preheating and post-weld heat treatment are essential to avoid issues like cracking and to maintain the integrity of the weld. This ensures reliable performance and durability in demanding applications.
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