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| Categories | Alloy Steel Tube |
|---|---|
| Brand Name: | YUHONG |
| Model Number: | ASTM A335 Grade T11 |
| Certification: | ABS, GL, DNV, NK, PED, AD2000, GOST9941-81, CCS, ISO 9001-2008 |
| Place of Origin: | CHINA |
| MOQ: | 100KGS |
| Price: | Negotiable |
| Payment Terms: | L/C,T/T |
| Supply Ability: | 1000 tons per month |
| Delivery Time: | Depends on quantity |
| Packaging Details: | Ply-wooden Case /Iron Case/ Bundle with plastic Cap/Woven Case |
| Material Grade: | ASTM A335 Gr.T11 |
| Pipe Type: | Seamless High-Temperature Pipe |
| Operating Temperature Range: | -29°C to 595°C |
| Test Certification: | EN 10204 3.1 |
| Type: | Seamless Pipe |
| Standards: | ASTM A335, ASME SA335 |
| Ends: | Plain End, Beveled End |
| Application: | High Temperature Service, Power Plants, Petrochemical Plants |
| Heat Treatment: | Normalized and Tempered |
| Company Info. |
| Yuhong Group Co.,Ltd |
| Verified Supplier |
| View Contact Details |
| Product List |
ASTM A 335 Gr. T11 Seamless Alloy Steel Pipe | High-Temperature Pressure Pipe | YUHONG
ASTM A335 T11 pipes are 1.25Cr-0.Mo seamless pipes designed for critical applications requiring exceptional heat resistance. Manufactured to meet ASTM A335/A335M-2024 standards, these pipes deliver superior creep strength at temperatures up to 650°C (1200°F). Ideal for power plants and refining processes with service pressures exceeding 20 MPa.
Verified per ASTM A335 Requirements
| Element | Standard Range (%) | Primary Function |
|---|---|---|
| Carbon (C) | 0.05-0.15 | Base Strength |
| Chromium (1.25Cr) | 1.00-1.50 | Oxidation Resistance |
| Molybdenum (0.5Mo) | 0.44-0.65 | Creep Strength |
| Manganese (Mn) | 0.30-0.60 | Deoxidation |
| Phosphorus (P) | ≤0.025 | Purity |
| Sulfur (S) | ≤0.为0.025 | Purity |
| Iron (Fe) | Balance | Base Material |
Interchangeable Worldwide
| Standard | Equivalent | Key Market |
|---|---|---|
| ASME | SA335 T11 | USA |
| EN | 12CrMo4-5 | Europe |
| JIS | STBA 25 | Japan |
| GOST | 12Kh1MF | Russia |
| ISO | 11CrMo9-10 | International |
Per ASTM A335 Testing
| Property | Value | Test Condition |
|---|---|---|
| Tensile Strength | ≥415 MPa | Room Temperature |
| Yield Strength | ≥205 MPa | Room Temperature |
| Elongation | ≥30% | 50 mm Gauge |
| Hardness | ≤197 HB | Brinell Scale |
| Maximum Service Temperature | 650°C | Continuous |
| Permissible Stress | 36 MPa | @500°C (ASME Section II Part D) |
Why Choose Our T11 Pipes:
| Benefit | Technical Advantage |
|---|---|
| Heat Resistance | 1.25% Cr prevents oxidation at 600°C |
| Thermal Cycling | 0.5% Mo enhances creep strength at 650°C |
| Quality Assurance | 100% hydrotested to 30 MPa per ASME B31.1 |
| Precision Dimensions | Wall thickness tolerance ±12.5% per ASTM A335 |
Primary Industrial Uses:
| Industry | Equipment & Systems |
|---|---|
| Power Generation | Boiler Superheaters, Reheaters, Steam Pipe Systems |
| Petrochemical | Catalytic Cracking Units, Steam Reformer Tubes |
| Oil & Gas | Refinery Furnace Piping, High-Temperature Reactors |
| Heat Exheaters | High-Pressure Heat Exheaters |
| Nuclear | ASME Section III Class 1/2/3 Components |
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