Yuhong Group Co.,Ltd
| Delivery Time | Depends on quantity |
| Length | 6m - 12m (customizable) |
| Supply Ability | 100 tons per month |
| Specification | ASTM A213 |
| Payment Terms | T/T, L/C |
| Grade | T11 |
| Usage | Heat exchanger tube, Boiler tube |
| O.D | 3/4" (19.05), 1"(25.4) , 1-1/4"(31.75), 1-1/2"(38.1), 2" (50.8), 2-1/2"(63.5) , 3" (76.2) |
| Type | Seamless |
| Packaging Details | PLYWOOD CASE,BUNDLE,WOVEN BAG |
| Model Number | ASTM A213 T11 |
| Brand Name | YUHONG |
| Certification | ISO9001-2008, API 5L, API 5CT |
| Place of Origin | China |
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Product Specification
| Delivery Time | Depends on quantity | Length | 6m - 12m (customizable) |
| Supply Ability | 100 tons per month | Specification | ASTM A213 |
| Payment Terms | T/T, L/C | Grade | T11 |
| Usage | Heat exchanger tube, Boiler tube | O.D | 3/4" (19.05), 1"(25.4) , 1-1/4"(31.75), 1-1/2"(38.1), 2" (50.8), 2-1/2"(63.5) , 3" (76.2) |
| Type | Seamless | Packaging Details | PLYWOOD CASE,BUNDLE,WOVEN BAG |
| Model Number | ASTM A213 T11 | Brand Name | YUHONG |
| Certification | ISO9001-2008, API 5L, API 5CT | Place of Origin | China |
| High Light | ASME SA213 T11 seamless alloy boiler tube ，1.25Cr-0.5Mo chrome moly boiler tube ，seamless alloy tube for power plant | ||
ASME SA213 T11 Seamless Alloy Tube 1.25Cr-0.5Mo Chrome Moly for Boiler Superheater Power Plant
| Chemical Composition | ||
| Element | Content Range (%) | Metallurgical Function |
| C (Carbon) | 0.05 – 0.15 | Ensures high-temperature strength and creep limit; upper limit controlled to maintain weldability |
| Si (Silicon) | 0.50 – 1.00 | Deoxidation; improves high-temperature oxidation resistance |
| Mn (Manganese) | 0.30 – 0.60 | Strengthens matrix; improves hot workability |
| P (Phosphorus) | ≤ 0.025 | Strictly controlled to minimize embrittlement |
| S (Sulfur) | ≤ 0.025 | Reduces hot cracking risk |
| Cr (Chromium) | 1.00 – 1.50 | Forms Cr₂O₃ protective scale for oxidation resistance up to 550°C; synergizes with Mo to enhance hot strength |
| Mo (Molybdenum) | 0.44 – 0.65 | Solid-solution strengthening; inhibits temper embrittlement; significantly improves creep resistance |
| Mechanical Properties | ||
| Parameter | Standard Requirement (Min.) | Typical Value |
| Tensile Strength (Rm) | ≥ 415 MPa | 460 – 580 MPa |
| Yield Strength (Rp0.2) | ≥ 205 MPa | 275 – 360 MPa |
| Elongation (50mm gage length) | ≥ 30% | 35% – 40% |
| Hardness | ≤ 163 HBW / ≤ 85 HRB | 140 – 160 HBW |
| High-Temperature Yield Strength (550°C) | — | Approx. 205 MPa |
| Physical Properties (Reference Values) | ||
| Parameter | Value | Unit |
| Density | ~7.85 | g/cm³ |
| Elastic Modulus (20°C) | ~210 | GPa |
| Thermal Conductivity | ~42 | W/(m·K) |
| Coefficient of Linear Expansion (20–400°C) | ~12.5 | ×10⁻⁶/°C |
Application
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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