ASTM A335 T11 Seamless Alloy Steel Pipe for High-Temperature Service
Price:
Negotiable
MOQ:
100KGS
Delivery Time:
Depends on quantity
Brand:
YUHONG
Product Description
ASTM A 335 Gr. T11 Seamless Alloy Steel Pipe | High-Temperature Pressure Pipe | YUHONG
1. Product Overview: High-Temperature Performance
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.
2. Chemical Composition: Precision Alloying
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 |
3. Equivalent Grades: Global Compliance
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 |
4. Mechanical Properties: Reliability Under Stress
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) |
5. Key Advantages: Critical Performance Benefits
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 |
6. Applications: Critical Industrial Solutions
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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Company
Yuhong Group Co.,Ltd
Location
20TH FLOOR,NO.1 NEW WORLD BUILDING ,NO.1018 MINAN ROAD,YINZHOU DISTRICT, NINGBO CITY, ZHEJIANG PROVINCE, CHINA
Contact Person
Jikin Cai