Yuhong Group Co.,Ltd
| 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 |
| 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 |
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Product Specification
| 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 | 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 | ||
| High Light | ASTM A335 T11 alloy steel pipe ，seamless alloy steel tube ，high-temperature service steel pipe | ||
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 |
Company Details
Business Type:
Manufacturer,Distributor/Wholesaler,Importer,Exporter,Trading Company,Seller,Other
Year Established:
2007
Total Annual:
50M-70M
Employee Number:
50~850
Ecer Certification：
Verified Supplier
Yuhong Group is one of the large scale group company in China, more than 35 years experience in the international market, providing high-quality services to over 3000 customers, end user which like Aramco, Petrobras, Pemex, Petronas, Ecopetro, Petroecuador, …. till now Yuhong Grou... Yuhong Group is one of the large scale group company in China, more than 35 years experience in the international market, providing high-quality services to over 3000 customers, end user which like Aramco, Petrobras, Pemex, Petronas, Ecopetro, Petroecuador, …. till now Yuhong Grou...
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