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ASTM A335 Alloy Steel Seamless Pipe High Temperature Resistant Corrosion Resistant Boiler Tube OD 6-630mm
Product Details
| Outer Diameter | 6-1200mm | Wall Thickness | 1-120mm |
|---|---|---|---|
| Length | 6m,5.8m,11.8m,12m | Section Shape | Round |
| Surface Treatment | Black | Carbon Content | 0.05-0.15% (T11) |
| Manganese Content | 0.30-0.60% (T11) | Phosphorus Content | ≤0.025% (T11) |
| Sulfur Content | ≤0.025% (T11) | Silicon Content | 0.50-1.00% (T11) |
| Chromium Content | 8-9.50% (T91) | Molybdenum Content | 0.85-1.05% (T91) |
| Vanadium Content | 0.18-0.25% (T91) | Tensile Strength | ≥585 MPa (T91) |
| Yield Strength | ≥415 MPa (T91) | ||
| Highlight | High Temperature Resistant Alloy Steel Seamless Pipe,Corrosion Resistant Boiler Tube,OD 6-630mm ASTM A335 Pipe |
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Product Description
ASTM A335 Alloy Steel Seamless Pipes & Boiler Tubes
High-performance alloy steel seamless pipes and boiler tubes including grades T91, T22, P22, P11, P12, P91, P92 for demanding industrial applications.
Product Specifications
| Item | Cold Rolled / Cold Drawn Alloy Steel Seamless Pipe |
| Standard | JISG3467-88, JISG3458-88, GB3087, GB6479-2000, GB9948-2006, GB5310-95, GB9948-88, ASME SA210, ASME SA213, ASTM SA335, ASTMA335/A335m, ASTMA213/A213m, DIN 17175 |
| Model No. | 12Cr1MoV, P2(10CrMo910), T91, P91, P9, T9, Cr5Mo, 15CrMo, P11, P12, 13CrMo44, 25CrMo, 30CrMo, 40CrMo, 12CrMo, X12CrMo91, 12Cr2Mo |
| Surface | Black painted, PE coated, galvanized |
| Length | 6m, 5.8m, 11.8m, 12m, or as required |
| Wall Thickness | 1-120mm |
| Outer Diameter | 6-1200mm |
| Payment Terms | T/T, L/C, Western Union |
| Price Terms | FOB, CIF, CFR, Ex-work, CNF |
Chemical Composition (%)
| Grade | C | Mn | P≤ | S≤ | Si | Cr | Mo | V≥ |
|---|---|---|---|---|---|---|---|---|
| T11 | 0.05-0.15 | 0.30-0.60 | 0.025 | 0.025 | 0.50-1.00 | 0.50-1.00 | 1.00-1.50 | |
| T12 | 0.05-0.15 | 0.30-0.61 | 0.025 | 0.025 | ≤0.50 | 0.80-1.25 | 0.44-0.65 | |
| T13 | 0.05-0.15 | 0.30-0.60 | 0.025 | 0.025 | ≤0.50 | 1.90-2.60 | 0.87-1.13 | |
| T2 | 0.10-0.20 | 0.30-0.61 | 0.025 | 0.025 | 0.10-0.30 | 0.50-0.81 | 0.44-0.65 | |
| T5 | ≤0.15 | 0.30-0.60 | 0.025 | 0.025 | ≤0.50 | 4.00-6.00 | 0.45-0.65 | |
| T5b | ≤0.15 | 0.30-0.60 | 0.025 | 0.025 | 1.00-2.00 | 4.00-6.00 | 0.45-0.65 | |
| T5c | ≤0.12 | 0.30-0.60 | 0.025 | 0.025 | ≤0.50 | 4.00-6.00 | 0.45-0.65 | |
| T9 | ≤0.15 | 0.30-0.60 | 0.025 | 0.025 | 0.25-1.00 | 8.00-10.00 | 0.9-1.0 | |
| T22 | 0.05-0.15 | 0.30-0.60 | 0.025 | 0.025 | ≤0.50 | 1.90-2.60 | 0.87-1.13 | |
| T91 | 0.08-0.12 | 0.30-0.60 | 0.020 | 0.010 | ≤0.50 | 8-9.50 | 0.85-1.05 | 0.18-0.25 |
| T92 | 0.07-0.13 | 0.30-0.60 | 0.020 | 0.010 | ≤0.50 | 8-9.50 | 0.3-0.60 | 0.15-0.25 |
| T21 | 0.05-0.15 | 0.30-0.60 | 0.025 | 0.025 | ≤0.50 | 2.65-3.35 | 0.80-1.06 |
Mechanical Properties
| Standard | Steel Grade | Tensile (MPa) | Yield (MPa) | Elongate (%) | Hardness |
|---|---|---|---|---|---|
| 20MnG | 20MnG | ≥415 | ≥240 | ≥22 | |
| 25MnG | 25MnG | ≥485 | ≥275 | ≥20 | |
| 15CrMoG | 15CrMoG | 440~640 | ≥235 | ≥21 | |
| 12Cr2MoG | 12Cr2MoG | 450~600 | ≥280 | ≥20 | |
| 12Cr1MoVG | 12Cr1MoVG | 470~640 | ≥255 | ≥21 | |
| 12Cr2MoWVTiB | 12Cr2MoWVTiB | 540~735 | ≥345 | ≥18 | |
| 10Cr9Mo1VNb | 10Cr9Mo1VNb | ≥585 | ≥415 | ≥20 | |
| ASME SA210 | SA210A-1 | ≥415 | ≥255 | ≥30 | ≤143HB |
| ASME SA210 | SA210C | ≥485 | ≥275 | ≥30 | ≤179HB |
| ASME SA213 | SA213 T11 | ≥415 | ≥205 | ≥30 | ≤163HB |
| ASME SA213 | SA213 T12 | ≥415 | ≥220 | ≥30 | ≤163HB |
| ASME SA213 | SA213 T22 | ≥415 | ≥205 | ≥30 | ≤163HB |
| ASME SA213 | SA213 T23 | ≥510 | ≥400 | ≥20 | ≤220HB |
| ASME SA213 | SA213 T91 | ≥585 | ≥415 | ≥20 | ≤250HB |
| ASME SA213 | SA213 T92 | ≥620 | ≥440 | ≥20 | ≤250HB |
| DIN17175 | ST45.8/ | 410~530 | ≥255 | ≥21 | / |
| DIN17175 | 15Mo3 | 450~600 | ≥270 | ≥22 | |
| DIN17175 | 13CrMo44 | 440~590 | ≥290 | ≥22 | |
| DIN17175 | 10CrMo910 | 480~630 | ≥280 | ≥20 |
Heat Treatment Assurance
Our facility utilizes a full-automatic natural gas furnace measuring 24 meters in length, maintaining precise temperature control within 10ºC tolerance.
Note: It is recommended that tempering temperature should be at least 100°F [50°C] above the intended service temperature. Please advise if service temperature exceeds 1100°F [600°C].
Grades P1, P2, and P12 (hot finished or cold drawn) may receive final heat treatment at 1200°F [650°C] to 1300°F [705°C]. Grade P5c pipes undergo final heat treatment between 1325°F [715°C] to 1375°F [745°C].
Quality Assurance
- Each lot of raw materials undergoes spectrometer testing before storage
- 100% PMI (Positive Material Identification) of mother pipe to ensure correct material
- 100% PMI of finished pipe to verify correct grade production
Permitted OD Tolerance
| OD (mm) | Plus Tolerance (+) | Minus Tolerance (-) |
|---|---|---|
| 10.29-48.3 | 0.4 | 0.4 |
| <48.3--≤114.3 | 0.79 | 0.79 |
| <114.3-≤219.1 | 1.59 | 0.79 |
| <219.1-≤323.9 | 2.38 | 0.79 |
| <323.9 | ±1% | ±1% |
Applications
High pressure, low & medium pressure boiler steel pipes and tubes are ideal for manufacturing super-heaters, re-heaters, water walls, and economizers in large-scale power plants.
Product Images
Company Information
We are a professional enterprise specializing in pipe fittings production, steel pipe sales, and export services. Our core products include alloy steel pipes, alloy pipes, and alloy pipe fittings.
Company Profile
Established in 1992, our factory covers 100,000 square meters and employs 520 staff members, including 3 senior engineers, 12 engineers, and 150 technical professionals. Annual production exceeds 20,000 tons of pipe fittings and 50,000 tons of pipe flux.
Certifications
ISO9001 Quality Management System, ISO14001 Environmental Management System, OHSA18001 Occupational Health & Safety, Pressure Pipe Special Equipment Manufacturing License, Measurement Assurance Certificate, and multiple industry network member certifications.
Production Capabilities
Our facility features 420 sets of advanced equipment including pushing machines, press machines, large heat treatment furnaces, beveling machines, sawing machines, three-way extruders, splint hammers, large sand blasting machines, and comprehensive testing instruments.
We maintain over 20,000 tons of special steel pipes in inventory year-round, serving major steel manufacturers including Tianjin Big Seamless Steel Tube, Shanghai Baosteel, Chengdu Steel Vanadium, Yangzhou Chengde, Valing Henggang, and Baotou Steel as their special dealer.
Market Reach
Our products are widely used in petroleum, chemical, power generation, metallurgy, city gas, heat pipe networks, shipbuilding, and other pipeline engineering industries. We export to Southeast Asia, Central Asia, North Africa, South America, and other global regions.
We adhere to the business philosophy of high-quality branding and honest customer relationships, committed to creating a better future through superior products and service.
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