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Raian IonescuMaterial quality very good. we have cooperate more than 10 Years. They trade lots kinds of steel material. All material quality good. They duty for all material quality. We are planing continue cooperate with them in the future
Seamless Steel Pipe Alloy Steel Pipe High Temperature Resistant Corrosion Resistant Customized Size Manufacture in China
Product Details
| Outer Diameter | 6-1200mm | Wall Thickness | 1-120mm |
|---|---|---|---|
| Length | 6m,5.8m,11.8m,12m, Or As Required | Surface Treatment | Black Painted,PE Coated,galvanized |
| Tensile Strength | 415-735MPa | Yield Strength | 205-440MPa |
| Elongation | 18-30% | Hardness | ≤250HB |
| Carbon Content | 0.05-0.20% | Manganese Content | 0.30-0.61% |
| Chromium Content | 0.50-10.00% | Molybdenum Content | 0.44-1.50% |
| Silicon Content | 0.10-2.00% | Heat Treatment Temp | 1200°F-1375°F |
| OD Tolerance | ±0.4mm To ±1% | ||
| Highlight | High Temperature Resistant Seamless Steel Pipe,Corrosion Resistant Alloy Steel Pipe,Customized Size Boiler Pipe |
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Product Description
Seamless Alloy Steel Pipes - Custom Sizes
Professional manufacturer of high-quality seamless alloy steel pipes including grades P11, T11, T91, T22, P22, P5, P9, and WB36 with customized sizing options.
Product Specifications
Item: Cold Rolled / Cold Drawn Alloy Steel Seamless Pipe
Standards: 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 Numbers: 12Cr1MoV, P2(10CrMo910), T91, P91, P9, T9, Cr5Mo, 15CrMo, P11, P12, 13CrMo44, 25CrMo, 30CrMo, 40CrMo, 12CrMo, X12CrMo91, 12Cr2Mo
Surface Treatment: Black painted, PE coated, galvanized
Length: 6m, 5.8m, 11.8m, 12m, or as required
Wall Thickness: 1-120mm
Outer Diameter: 6-1200mm
Trade Terms
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 features a full-automatic natural gas furnace measuring 24 meters in length, maintaining temperature tolerance within 10ºC for precise heat treatment control.
Important Note: It is recommended that tempering temperature should be at least 100°F [50°C] above 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]. All Grade P5c pipes undergo final heat treatment from 1325°F [715°C] to 1375°F[745°C].
Quality Assurance Process
- Each raw material lot 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/tubes are ideal for manufacturing super-heaters, re-heaters, water walls, and economizers in large-scale power plants.
Product Gallery
Company Profile
Established in 1992, our company specializes in pipe fittings production, steel pipe sales, and export services. We are a professional enterprise focusing on alloy steel pipes, alloy pipes, and alloy pipe fittings.
Facility: 100,000 square meters
Employees: 520 total, including 3 senior engineers, 12 engineers, and 150 technical professionals
Production Capacity: 20,000+ tons of pipe fittings annually, 50,000+ tons of pipe flux
Certifications & Quality Standards
- ISO9001 International Quality Management System
- ISO14001 Environmental Management System
- OHSA18001 Occupational Health and Safety Management System
- Pressure Pipe Special Equipment Manufacturing License
- Measurement Assurance Ability Certificate
- China Datang Group Network Members Factory Certificate
- Chemical Equipment Sentinel Production Enterprises Certificate
- China Power Network Members Accessories Factory Certification
- China Petrochemical Materials Supply Network Member Certification
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, sourcing from major steel producers including Tianjin Big Seamless Steel Tube, Shanghai Baosteel, Chengdu Steel Vanadium, Yangzhou Chengde, Valing Henggang, and Baotou Steel.
Global Reach: Our products are exported to Southeast Asia, Central Asia, North Africa, South America, and serve industries including petroleum, chemical, electric power, metallurgy, city gas, heat pipe networks, and shipbuilding.
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