Products Description
Our Advantages
1. High-Temperature Strength
Our Chrome Moly Alloy Pipe maintains excellent creep resistance and high strength at temperatures exceeding 600°C, making it ideal for superheated steam piping, reformer tubes, and boiler headers.
2. Quality Control
Our pipes undergo ultrasonic and eddy current testing to ensure seamless structural integrity and eliminate leakage risks in high-pressure environments. Furthermore, our pipes undergo a comprehensive process, including piercing, rolling, heat treatment, and straightening, ensuring dimensional tolerances meet standard specifications and a straightness of ≤ 1.0 mm/m.
3. Secondary Processing
Our Chrome Moly Alloy Pipe is delivered in the normalized and tempered state, facilitating bending and forming. Rockwell hardness testing ensures the effectiveness of the post-weld heat treatment and material uniformity.
application areas
- Power Industry: Superheaters, reheaters, main steam lines, and connecting pipes for power plant boilers.
- Petrochemical Plants: Hydrogen services, high-temperature fluid transportation, and heat exchangers.
- Oil and Gas Industry: High-pressure piping systems.
- Boiler Manufacturing: Heating surface tubes, economizers, headers, and steam lines for high-pressure boilers.
Chemical Composition
| Element | C | Mn | Si | P (max) | S (max) | Cr | Mo |
|---|---|---|---|---|---|---|---|
| P1 | 0.10–0.20 | 0.30–0.80 | 0.10–0.50 | 0.025 | 0.025 | 0.44–0.65 | 0.44–0.65 |
| P9 | 0.15 | 0.30–0.60 | 0.25–1.00 | 0.025 | 0.025 | 8.00–10.00 | 0.90–1.10 |
| P11 | 0.05–0.15 | 0.30–0.60 | 0.50–1.00 | 0.025 | 0.025 | 1.00–1.50 | 0.44–0.65 |
| P91 | 0.08–0.12 | 0.30–0.60 | 0.20–0.50 | 0.020 | 0.010 | 8.00–9.50 | 0.85–1.05 |
Mechanical Properties
| Property | Tensile Strength (MPa) | Yield Strength (MPa) | Elongation (%) | Hardness (HB) |
| P1 | 415 | 205 | 30 | 163 |
| P9 | 585 | 380 | 20 | 190 |
| P11 | 415 | 205 | 30 | 163 |
| P91 | 585 | 415 | 20 | 250 |
Possible Alternative Grades
| Alternative Grades | Reasons |
| ASTM A106 Grade C | A carbon steel suitable for low-temperature or non-critical services where Cr-Mo alloying is not required. |
| ASTM A213 T9 | Equivalent chemical composition to P9, it is primarily used for boiler and superheater tubes. |
| ASTM A335 P92 | It offers enhanced strength and creep resistance, making it suitable for applications above 600°C. |
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Testing Equipment
Factory Equipment
Pickling equipment
Products Package
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