GOST TU 14-3-460 Low Carbon Alloy Steel Tube for High Pressure Boiler Seamless Tube
Price:
Negotiable
MOQ:
1Ton
Delivery Time:
20-40days
Brand:
TORICH
Product Description
GOST TU 14-3-460 Low Carbon Alloy Steel Tube For High Pressure Boiler
GOST TU 14-3-460 low carbon alloy steel tubes are seamless boiler and steam-pipeline tubes designed for high-pressure and high-temperature service in power boilers, superheaters, reheaters, headers, and steam pipelines. The specification covers carbon, low-alloy, and heat-resistant alloy steel tubes with standardized high-temperature properties for steam boilers and pipelines, including high and supercritical steam parameters.
Technical Specifications
| Item | Specification |
|---|---|
| Material | Low carbon steel / low alloy heat-resistant steel |
| Standard | TU 14-3-460 / TU 14-3-460-2003 / TU 14-3-460-2009 |
| Main Grades | 20, 20-PV, 15GS, 15ChM / 15CrMo, 12Ch1MF / 12Cr1MoV, 15H1M1F |
| Outside Diameter | Cold-formed: 10-76 mm; hot-formed: 57-219 mm |
| Wall Thickness | Cold-formed: 2-12 mm; hot-formed: 3.5-40 mm |
| Length | 1-12 m, customizable; TU 14-3-460-75 commonly lists length up to 9 m by agreement |
| OD Tolerance | Hot-rolled 57-219 mm: ±1%; cold-drawn 10-30 mm: ±0.30 mm; 32-50 mm: ±0.40 mm; 51-76 mm: ±0.8% |
| Wall Thickness Tolerance | Hot-rolled OD ≤108 mm: +15% / -10%; OD >108 mm: +20% / -5%; cold-drawn 2-12 mm: ±10% |
| Straightness | Controlled for boiler installation and tube-bank assembly; tighter straightness available by agreement |
| Surface Condition | Pickled, shot-blasted, polished, oiled, or as-heat-treated |
| Heat Treatment | Normalizing; normalizing + tempering for alloy heat-resistant grades |
| Inspection | 100% non-destructive testing, dimensional inspection, hydrostatic or equivalent testing by order requirement |
Key Features
| Feature | Technical Value |
|---|---|
| High-pressure boiler service | Designed for steam boilers and pipelines with high and supercritical steam parameters |
| Seamless structure | No weld seam, suitable for pressure-bearing boiler circuits |
| Wide size coverage | Cold-formed 10-76 mm OD; hot-formed 57-219 mm OD |
| Heat-resistant alloy options | 12Ch1MF / 12Cr1MoV contains Cr 0.90-1.20%, Mo 0.25-0.35%, V 0.15-0.30% |
| Strength range | 20 / 20-PV: 412-549 MPa tensile strength; 12Cr1MoV and 15CrMo: 441-637 MPa tensile strength |
| Ductility control | Minimum elongation commonly 21-24% for 20-PV, 15CrMo, and 12Cr1MoV grades |
| NDT requirement | TU 14-3-460-75 product references specify 100% non-destructive testing |
Our Advantages
| Buyer Concern | Our Solution |
|---|---|
| Grade selection for temperature and pressure | We help match 20-PV, 15GS, 15CrMo, 12Cr1MoV, or 15H1M1F according to boiler zone, steam temperature, wall thickness, and creep-resistance requirement. |
| Dimensional risk during boiler assembly | We control OD, wall thickness, ovality, straightness, and cut length according to TU 14-3-460 tolerance logic, with additional agreement available for tube-bank fabrication. |
| Material traceability and inspection reliability | Each batch can be supplied with heat number tracking, chemical analysis, mechanical test report, heat-treatment record, NDT record, and EN 10204 3.1-type inspection documentation when required. |
Executive Standards
| Standard System | Related Standard / Equivalent Direction |
|---|---|
| GOST / TU | TU 14-3-460, TU 14-3R-55, GOST-related boiler tube specifications |
| ASTM / ASME | ASTM A192, ASTM A210, ASTM A213, ASTM A335, ASME SA213 / SA335 depending on grade equivalence |
| EN | EN 10216-2 for seamless pressure tubes; P235GH, 16Mo3, 13CrMo4-5, 10CrMo9-10 as project-based alternatives |
| JIS | JIS G3461, JIS G3462 for boiler and heat exchanger tubes |
| GB | GB 3087, GB/T 5310 for medium and high-pressure boiler tubes |
Application Field
High-pressure boiler superheater tube used in thermal power plant boiler systems.
Chemical Composition
| Grade | C % | Si % | Mn % | P % max | S % max | Cr % | Ni % | Cu % | Mo % | V % | Fe |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 20 / 20-PV | 0.17-0.24 | 0.17-0.37 | 0.35-0.65 | 0.025-0.030 max | 0.030 max | 0.25 max | 0.25 max | 0.30 max | -- | -- | Balance |
| 15GS | 0.12-0.18 | 0.70-1.00 | 0.90-1.30 | 0.025 max | 0.025 max | 0.30 max | 0.30 max | 0.30 max | -- | -- | Balance |
| 15ChM / 15CrMo | 0.11-0.18 | 0.17-0.37 | 0.40-0.70 | 0.025 max | 0.025 max | 0.80-1.10 | 0.30 max | 0.30 max | 0.40-0.55 | -- | Balance |
| 12Ch1MF / 12Cr1MoV | 0.10-0.15 | 0.17-0.37 | 0.40-0.70 | 0.025 max | 0.025 max | 0.90-1.20 | 0.25 max | 0.20 max | 0.25-0.35 | 0.15-0.30 | Balance |
| 15H1M1F | 0.10-0.15 | 0.17-0.37 | 0.40-0.70 | 0.025 max | 0.025 max | 1.10-1.40 | 0.25 max | 0.25 max | 0.90-1.10 | 0.20-0.35 | Balance |
Chemical ranges above are compiled from TU 14-3-460 / TU 14-3R-55 grade data and Russian steel-grade references for 15GS, 15ChM, 12Ch1MF, and 15H1M1F.
Mechanical Properties
| Grade | Heat Treatment / Delivery Condition | Tensile Strength, MPa | Yield Strength, MPa | Elongation, % min | Notes |
|---|---|---|---|---|---|
| 20 / 20-PV | Normalized or as specified | 412-549 | 216 min | 24 longitudinal / 22 transverse | Carbon boiler tube grade |
| 15GS | Normalized 900-930°C, air cooling | 490-640 | 295 min | 16-18 min | Si-Mn low alloy boiler tube grade |
| 15ChM / 15CrMo | Normalized + tempering as required | 441-637 | 235 min | 21 longitudinal / 20 transverse | Cr-Mo heat-resistant grade |
| 12Ch1MF / 12Cr1MoV | Normalized + tempering as required | 441-637 | 274 min | 21 longitudinal / 19 transverse | Cr-Mo-V heat-resistant grade |
| 15H1M1F | Normalized 970-1000°C + tempered 730-760°C | 490-690 | 345 min | 16-18 min | Higher Mo-V heat-resistant grade |
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Frequently Asked Questions
Are you trading company or manufacturer?
Manufacturer, also can do trading.
How long is your delivery time?
Generally speaking, it is 10-15 days if the goods are in stock, or it is 30-40 days if the goods are not in stock, it is according to quantity.
Do you provide samples? Is it free or extra?
Yes, we could offer the sample for free charge but need pay the cost of freight.
What is your terms of payment?
Payment <= 2000 USD, 100% in advance. Payment >= 2000 USD, 30% T/T in advance, balance before shipment. If you have another question, please feel free to contact with me.
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Company
TORICH INTERNATIONAL LIMITED
Location
Suite 1604-3, Hongan Plaza, #258 Die Yuan Road, Yinzhou District, Ningbo City, China
Contact Person
Richard SHEN