ASTM A335 P91 P92 Seamless Alloy Steel Pipe for High Temperature Service 585-620 MPa Tensile Strength
Price:
USD 2500-2858 per ton
MOQ:
2 tons
Delivery Time:
within 7-10 working days
Brand:
Mittel Steel
Product Description
ASTM A335 P91 & P92 Seamless Alloy Steel Pipe
High-temperature seamless ferritic alloy-steel pipe suitable for bending, flanging, and fusion welding applications in demanding industrial environments.
Material Specifications
This specification covers nominal wall seamless alloy-steel pipe intended for high-temperature service applications. The material is suitable for various forming operations and welding processes.
Chemical Composition
| Grade | C | Mn | P | S | Si | Mo |
|---|---|---|---|---|---|---|
| P1 | 0.10-0.20 | 0.30-0.80 | 0.025 | 0.025 | 0.10-0.50 | 0.44-0.65 |
| P2 | 0.10-0.20 | 0.30-0.61 | 0.025 | 0.025 | 0.10-0.30 | 0.44-0.65 |
| P5 | 0.15max | 0.30-0.60 | 0.025 | 0.025 | 0.50max | 0.45-0.65 |
| P9 | 0.15max | 0.30-0.60 | 0.025 | 0.025 | 0.25-1.00 | 0.90-1.10 |
| P11 | 0.05-0.15 | 0.30-0.60 | 0.025 | 0.025 | 0.50-1.00 | 0.44-0.65 |
| P22 | 0.05-0.15 | 0.30-0.60 | 0.025 | 0.025 | 0.50max | 0.87-1.13 |
Mechanical Properties
| Mechanical Properties | P1,P2 | P12 | P23 | P91 | P92,P11 | P122 |
|---|---|---|---|---|---|---|
| Tensile Strength (MPa) | 380 | 415 | 510 | 585 | 620 | |
| Yield Strength (MPa) | 205 | 220 | 400 | 415 | 440 |
Heat Treatment Requirements
| Grade | Heat Treatment Type | Normalizing Temperature Range | Tempering Temperature Range |
|---|---|---|---|
| A335 P91 | Normalize and Temper | 1900-1975°F [1040-1080°C] | 1350-1470°F [730-800°C] |
| A335 P91 | Quench and Temper | 1900-1975°F [1040-1080°C] | 1350-1470°F [730-800°C] |
Testing & Quality Control
Each pipe undergoes comprehensive testing including transverse or longitudinal tension tests, flattening tests, hardness tests, or bend tests. Hydrostatic testing or nondestructive electric testing ensures product integrity.
- Hardness test: P91 grade maximum 250 HB/265 HV [25HRC]
- Bend test: 180° bend at room temperature without cracking
- 5% testing rate for batch-type furnace treatment
Applications
Ideal for high-temperature service in power generation, petrochemical plants, refineries, and industrial processing systems requiring superior mechanical properties at elevated temperatures.
Product Images
Standards Compliance
Manufactured to meet ISO, JIS, GB, DIN, ASTM, and API standards for global industrial applications.
Similar Products
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.
Company
JIANGSU MITTEL STEEL INDUSTRIAL LIMITED
Location
NO.288,YOUYI ROAD ,XI SHAN DISTRICT,WUXI CITY,CHINA
Contact Person
Gao Ben