Yuhong Group Co.,Ltd
| Payment Terms | L/C,T/T |
| Supply Ability | According to client requirements |
| Delivery Time | Depends on the quantity |
| Packaging Details | Ply-wooden Case / Iron Case / Bundle with Plastic Cap |
| Product Name | Alloy Steel Seamless Tube |
| Specification | ASTM A213 / ASME SA213 |
| Material | T9 |
| Type | Seamless |
| Ends | Plain End, Beveled End |
| Application | Boiler, Superheater, Heat exchanger |
| Brand Name | YUHONG |
| Model Number | ASTM A213 T9 |
| 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 | According to client requirements |
| Delivery Time | Depends on the quantity | Packaging Details | Ply-wooden Case / Iron Case / Bundle with Plastic Cap |
| Product Name | Alloy Steel Seamless Tube | Specification | ASTM A213 / ASME SA213 |
| Material | T9 | Type | Seamless |
| Ends | Plain End, Beveled End | Application | Boiler, Superheater, Heat exchanger |
| Brand Name | YUHONG | Model Number | ASTM A213 T9 |
| Certification | ABS, GL, DNV, NK, PED, AD2000, GOST9941-81, CCS, ISO 9001-2008 | Place of Origin | China |
| High Light | ASTM A213 T9 alloy steel tube ，seamless boiler superheater tube ，alloy steel tube with warranty | ||
ASTM A213 T9 Alloy Steel Seamless Tube for Boiler Superheater
ASTM A213 T9 is a standard specification for seamless ferritic and austenitic alloy steel boiler, superheater, and heat-exchanger tubes. The T9 grade is a specific chromium-molybdenum alloy steel known for its excellent elevated temperature strength and oxidation resistance.
1. Key Characteristics & Applications
Primary Use: These tubes are primarily designed for high-temperature service environments, making them ideal for:
Power Generation Boilers: Superheater and reheater tubes.
Fossil Fuel Plants: Heat exchangers, condenser tubes, and piping systems.
Petrochemical Industry: Components in refineries and chemical processing equipment where resistance to corrosion and heat is critical.
Main Advantages:
Good Elevated Temperature Strength: Maintains structural integrity and resists creep (deformation under long-term stress at high temperatures).
Oxidation Resistance: The chromium content provides a protective oxide layer, preventing scaling and degradation in oxidizing atmospheres.
Weldability and Formability: Can be welded and fabricated using standard procedures suitable for chromium-molybdenum steels.
2. Chemical Composition
| Element | Composition (%) |
|---|---|
| Carbon (C) | 0.15 max |
| Manganese (Mn) | 0.30 - 0.60 |
| Phosphorus (P) | 0.025 max |
| Sulfur (S) | 0.025 max |
| Silicon (Si) | 0.25 - 1.00 |
| Chromium (Cr) | 8.00 - 10.00 |
| Molybdenum (Mo) | 0.90 - 1.10 |
3. Mechanical Properties
| Property | Requirement |
|---|---|
| Tensile Strength | ≥ 415 MPa (60 ksi) |
| Yield Strength | ≥ 205 MPa (30 ksi) |
| Elongation | ≥ 30% (in 2 inches or 50mm) |
4. Manufacturing Standard
The tubes are manufactured as seamless (without a weld seam) through a process like extrusion or piercing, ensuring uniformity and strength throughout the tube's circumference. This makes them highly reliable for high-pressure applications.
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 HOLDING GROUP is one of the largest Procurement, Engineering & Contracting Group companies in China. Our group branch company and factory have been already approved by : ABS, LR, DNV, GL, BV, CCS, KR, PED 97/23/EC, AD2000-WO, GOST9941-81, CCS, TS, CNNC, ISO9... YUHONG HOLDING GROUP is one of the largest Procurement, Engineering & Contracting Group companies in China. Our group branch company and factory have been already approved by : ABS, LR, DNV, GL, BV, CCS, KR, PED 97/23/EC, AD2000-WO, GOST9941-81, CCS, TS, CNNC, ISO9...
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