Home > Alloy Steel > Alloy Steel P91 Pipes
Alloy Steel P91 Pipeis a prime example of top-tier precision engineering paired with a distinctive blend. These pipes are made with essential elements like chromium, molybdenum and steel, delivering unmatched strength and performance. Their construction offers outstanding characteristics, including high strength, hardness, corrosion resistance and the capacity to endure high temperatures. Commonly employed across industries like oil and gas power generation and chemical processing, alloy steel P91 pipe is recognized for its dependability and long service life. Whether applied in pipelines, construction, or machinery handling heavy loads, it is essential for the efficiency and adaptability of industrial operations.
| 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 Koasteel, we take great pride in being the largest supplier and manufacturer in the New Zealand, delivering advanced solutions for all your piping requirements. With cutting-edge production facilities strategically situated in the New Zealand, we maintain an extensive inventory of more than 25,000 tons of top-quality materials kept ready in stock.
Reach out to us for a fast quote tailored to your requirement.
We provide these Alloy Steel P91 Pipes in accordance with DIN, ISO, JIS or ANSI Standard.
Alloy Steel P91 Pipes serve applications as varied as the industries they cater to, led mainly by the aerospace, railway, construction and automotive sectors along 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 are compatible with several welding techniques including TIG, MIG, and arc welding. That said, because of their elevated chromium and molybdenum levels, adequate preheating and post-weld heat treatment are crucial to prevent problems such as cracking and to preserve the soundness of the weld. This guarantees dependable performance and long-lasting service in tough applications.
Email: sales@koasteel.nz
