Product Brief
| Category | Description |
| Full Product Name | Alloy Steel Seamless Tube for High Pressure Heat Exchanger |
| Product Definition | Hot rolled & cold drawn seamless alloy steel tubing specially designed for high pressure & high temperature heat exchanger systems, made of Cr-Mo alloy steel, no welding seam, superior pressure bearing capacity, stable heat transfer performance, widely used in power plant, chemical, petrochemical industrial heat exchange equipmentAlibaba.co... |
| Core Value | Replace ordinary carbon steel tubes, solve leakage, deformation, low temperature creep failure under high pressure working condition, extend heat exchanger service lif |
Available Alloy Steel Grades
| Alloy Grade | Main Alloy Composition | Main Service Scene |
| ASTM A213 T5 | Cr4–6%, Mo0.45–0.65% | Medium-high pressure chemical heat exchanger |
| ASTM A213 T9 | Cr7–10%, Mo0.9–1.1% | High temp power station heat exchanger |
| ASTM A213 T12 | Cr0.8–1.25%, Mo0.44–0.65% | General high pressure boiler heat exchanger |
| ASTM A213 T22 | Cr2.0–2.5%, Mo0.9–1.1% | Ultra-high pressure petrochemical heat exchange system |
| ASTM A335 P11/P22 | Cr-Mo series alloy | Power plant superheater & heat exchanger |
| 12Cr1MoVG / 15Mo3 | Cr-Mo-V alloy | Thermal power high pressure heat exchange equipment |
International Implementation Standards
| Standard System | Complete Standard Number |
| American ASTM Standard | ASTM A213, ASTM A335, ASTM A192, ASTM A209 |
| European EN Standard | EN 10216-2, DIN 17175, PED CE Certification |
| Chinese National Standard | GB 5310, GB/T 20801 |
| Test Standards | Hydraulic Test, Eddy Current Test, Flatten Test, Bend Test, Hardness Test |
Dimensional Specification
| Parameter Item | Available Range |
| Outer Diameter (OD) | 16mm – 610mm, custom small & large size |
| Wall Thickness (WT) | 2mm – 60mm, thin wall & thick wall for high pressure |
| Fixed Length | 3m, 6m, 12m standard length |
| Custom Length | 0.5m–18m cut as customer drawing |
| Tolerance Control | OD ±0.1mm, WT ±0.05mm, strict tolerance for heat exchanger assembly |
Mechanical Performance
| Performance Index | Standard Test Value |
| Tensile Strength | ≥415 MPa |
| Yield Strength | ≥205 MPa |
| Elongation Rate | ≥30% |
| Hardness | ≤150 HB (Adjustable by annealing treatment) |
| Max Working Pressure | Up to 16MPa according to wall thickness design |
Surface Treatment & Finishing
| Surface Type | Application Feature |
| Hot Rolled Black Surface | Low cost, large diameter thick wall heat exchanger tube |
| Cold Drawn Bright Surface | Smooth inner wall, small diameter precision heat exchange pipeline |
| Pickling & Passivation | Anti-rust, clean surface for chemical medium heat exchanger |
| Oil Coated Anti-rust | Prevent oxidation during sea transportation |
Packaging
| Packaging Method | Applicable Tube Size |
| Bundled with Steel Strip | Conventional straight seamless tubes |
| Waterproof Plastic Wrapping Inside + Weave Bag Outside | Export sea transportation |
| Wooden Case Packing | Small size precision tubes, avoid collision damage |
| Custom Export Package | Meet customer special container loading demand |
Industrial Application
| Industry Sector | Specific Heat Exchanger Equipment |
| Thermal Power Plant | Boiler heat exchanger, superheater, reheater tube |
| Petrochemical Industry | High pressure reaction heat exchanger, oil cooling pipeline |
| Chemical Processing | Acid & alkali medium heat exchange system, high pressure condenser |
| Metallurgy Industry | High temperature furnace heat exchanger, waste heat recovery equipment |
| Energy & New Energy | Biomass boiler heat exchanger, hydrogen production heat exchange unit |
| Refrigeration & Heating | Large industrial high pressure heat exchange equipment |
Manufacturer Service
| Service Item | Detailed Description |
| Factory Direct Supply | 15+ years seamless alloy tube production factory, no middleman price difference |
| OEM & ODM Support | Custom grade, size, length, surface, printing logo as drawings |
| Full Test Report | Provide MTC material test certificate, third-party inspection report |
| Short Lead Time | Stock conventional sizes 3–7 days delivery; customized tubes 10–20 days |
| Flexible MOQ | Small trial order acceptable, bulk order price discount |
| Global Shipping | Support FOB, CIF, CFR, DDP, door-to-door delivery |
| After-sales Support | Technical parameter guidance for heat exchanger installation |
FAQ
Q: 1.What alloy grades do you produce for high pressure heat exchanger?
A: We supply full Cr-Mo alloy series including ASTM A213 T5/T9/T12/T22, A335 P11/P22, 12Cr1MoVG, 15Mo3, support custom special alloy grades.
Q: 2.Why choose seamless alloy tube instead of welded tube for heat exchanger?
A: Seamless tube has no welding joint, higher pressure resistance, no hidden leakage risk; welded pipe is easy to crack under long-term high temperature & pressure circulation, short service life.
Q: 3.Can you provide MTC material test certificate?
A: Yes, each batch of alloy steel seamless tubes comes with official Mill Test Certificate including chemical composition, mechanical performance, pressure test data.
Q: 4.What's the maximum working pressure your tube can bear?
A: Max working pressure depends on OD and wall thickness, thick wall alloy tube can work stably under 16MPa high pressure environment.
Q: 5.Do you accept small trial orders?
A: Yes, we support small trial order for heat exchanger factory testing, bulk order will get competitive factory price.
Q: 6.Which standards can your products comply with?
A: Our alloy seamless tubes meet ASTM, EN, DIN, GB standards, can pass PED CE certification for European market.
Products Description
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