1. Product Parameters (Table Format)
| Parameter | Specification | Standard |
|---|---|---|
| Chemical Composition | C: 0.12–0.18, Cr: 0.80–1.10, Mo: 0.40–0.55, Mn: 0.40–0.70 | GB/T 5310-2017 |
| Mechanical Properties | Tensile Strength: 440–640 MPa, Yield Strength: ≥295 MPa, Elongation: ≥21% | ASTM A210 |
| Heat Treatment | Normalized (900–930℃) + Tempered (680–730℃) | ASME SA-335 |
| Size Range | OD: 10–530mm, WT: 2.0–70mm (Hot-Rolled/Cold-Drawn) | JIS G3462 |
2. Key Applications
Power Plants: Boiler tubes (superheaters, reheaters) for steam pipelines (≤550℃)
Petrochemicals: High-pressure pipelines for oil/gas transport (H₂S-resistant with coating)
Nuclear Systems: Heat exchanger tubes in reactor cooling systems
3. Advantages
High-Temperature Resistance: Stable performance at 500–550℃ with excellent creep strength
Corrosion Resistance: Chromium forms protective oxide layers, reducing oxidation rates
Cost-Effective: Lower alloy content than advanced Cr-Mo-V steels (e.g., 12Cr1MoVG)
