ASME SA335 P9 K90941 Ferritic Alloy Steel Seamless Pipe for Thermal Power Generation
ASME SA335 P9 K90941 Ferritic Alloy Steel Seamless Pipe for Thermal Power Generation
ASME SA335 P9 Ferritic Alloy Steel Seamless Pipe are designed to cover nominal (average) wall seamless alloy-steel pipes meant for high-temperature applications.
SA335 P9 belongs to the high-temperature chromium-molybdenum alloy heat-resistant steel category. With excellent oxidation resistance, high-temperature strength, and resistance to sulfide corrosion, A335 P9 finds extensive usage in high-temperature, high-pressure, flammable, and explosive pipelines within petroleum refining and chemical equipment sectors, particularly in the direct heating pipes of heating furnaces. The operating temperature can range between 550-600 ℃.
| Grade | Standard | Country |
| STBA26 | JIS G3462 | Japan |
| T9 | ASTM A213 | U.S.A |
| HT7 | SAVDNIK | Sweden |
ASME SA335 P9 Ferritic Alloy Steel Seamless Pipe Key Specifications
- ASME SA335 Pipes: P9
- Size Range: 1/8" to 26"
- Schedules: 20, 30, 40, Standard (STD), 80, 100, 120, 140, 160, etc.
ASME SA335 P9 Ferritic Alloy Steel Seamless Pipe Chemical Composition
| Grade | Chemical Composition(%) | ||||||
| C | Mn | P | S | Si | Cr | Mo | |
| P9 | ≤0.015 | 0.30-0.60 | ≤0.025 | ≤0.025 | 0.25-1.00 | 8.00-10.00 | 0.90-1.10 |
ASME SA335 P9 Ferritic Alloy Steel Seamless Pipe Mechanical Property
| Grade | Mechanical property | ||
| Tensile Strength(MPa) | Yield Strength(MPa) | Elongation(%) | |
| P9 | ≥415 | ≥205 | ≥30 |
ASME SA335 P9 Ferritic Alloy Steel Seamless Pipe Outside diameter tolerances
| NPS Designator | Over | Under | ||
| in. | mm | in. | mm | |
| 1⁄8 to 1 1⁄2 , incl. | 1 ⁄ 64 (0.015) | 0.40 | 1 ⁄ 64 (0.015) | 0.40 |
| Over 1 1⁄2 to 4, incl. | 1 ⁄ 32 (0.031) | 0.79 | 1 ⁄ 32 (0.031) | 0.79 |
| Over 4 to 8, incl. | 1 ⁄ 16 (0.062) | 1.59 | 1 ⁄ 32 (0.031) | 0.79 |
| Over 8 to 12, incl. | 3 ⁄ 32 (0.093) | 2.38 | 1 ⁄ 32 (0.031) | 0.79 |
| Over 12 | | |||
ASME SA335 P9 Ferritic Alloy Steel Seamless Pipe Inquiry Information
(1) Quantity (feet, centimetres, or number of lengths),
(2) Name of material (seamless alloy steel pipe),
(3) Grade (P9)
(4) Manufacture (hot-finished or cold-drawn),
(5) Size (NPS or outside diameter and schedule number or average wall thickness),
(6) Length (specific or random),
(7) End finish
(8) Test report required
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