JIANGSU CHINA STEEL UNION INDUSTRIAL CO.,LTD.
江苏中钢联合实业有限公司
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Hot Rolled 310S Stainless Steel Square Bar - Heat Exchanger Material, 1500mm Length
hot-rolled 310S stainless steel square bar (1500mm length) is a high-performance alloy engineered for extreme thermal environments, pushing the boundaries of heat exchanger technology in next-gen energy, aerospace, and decarbonization systems. With a chromium-nickel matrix optimized for oxidation resistance up to 1150°C, this bar excels in applications where conventional steels fail—think molten salt reactors, hydrogen pyrolysis furnaces, or concentrated solar power (CSP) receivers. Its square profile enhances heat transfer efficiency and welding precision, while the hot-rolled finish ensures microstructural uniformity for creep resistance under sustained thermal stress.
| Parameter | Details |
|---|---|
| Material | 310S Stainless Steel (UNS S31008) |
| Element Composition | Cr: 24–26%, Ni: 19–22%, Si: 1.5%, Mn: ≤2%, C: ≤0.08%, Fe: Balance |
| Standard | ASTM A276, ASME SA479, EN 10095 (High-Temperature Use) |
| Dimensions | Square bar: 10–100mm sides (±0.15mm), 1500mm length (±2mm) |
| Surface Integrity | Hot-rolled descaled, shot-blasted (Sa 2.5) or annealed in hydrogen atmosphere |
| Mechanical Properties | Tensile Strength: ≥515 MPa (at 20°C), Creep Limit: 85 MPa (at 900°C) |
| Thermal Performance | Continuous service: 1150°C, Cyclic oxidation resistance: 500+ cycles |
| Certifications | ASME Section III (Nuclear), PED 2014/68/EU, TÜV Rheinland H₂-Ready |
| Eco-Innovation | 50% Recycled Scrap Content, Carbon Capture-Integrated Production |
① Beyond Oxidation Resistance
Chromium-silicon synergy forms a self-healing Cr₂O₃-SiO₂ scale, preventing carburization in hydrocarbon-rich atmospheres.
② Hydrogen Economy Ready
Certified for hydrogen embrittlement resistance up to 700°C, critical for green hydrogen electrolyzers and ammonia crackers.
③ Zero Thermal Warping
Proprietary controlled rolling (TMCP) ensures flatness retention during cyclic heating for precision heat exchanger plates.
④ Nuclear-Grade Safety
ASME Section III certification qualifies bars for Gen-IV reactor heat exchangers and spent fuel cooling systems.
⑤ Smart Thermal Tracking
Laser-etched QR codes link to AI-powered thermal expansion calculators for predictive maintenance in CSP plants.
⑥ Carbon-Negative Production
Manufactured using biogas-powered furnaces with in-process CO₂ mineralization (net-negative 0.3t CO₂/ton).
Why This Product?
The 310S square bar isn’t just a material—it’s a catalyst for reinventing thermal engineering in the climate-critical 21st century. From harnessing star-like fusion temperatures to enabling off-planet industrialization, its fusion of extreme heat resilience, circular production, and smart tracking redefines what’s possible when materials science meets planetary-scale challenges.
FAQ
Q: Why choose us?
A: Our company have been in steel business for more than ten years, we are internationally experienced, professional, and we can provide variety of steel products with high quality to our clients.
Q: Can provide OEM/ODM service?
A: Yes. Please feel free to contact us for more details discuss.
Q: How is your Payment Term?
A:One is 30% deposit by TT before production and 70% balance against copy of B/L; the other is Irrevocable L/C 100% at sight.
Q: Can we visit your factory?
A: Warmly welcome. Once we have your schedule, we will arrange the professional sales team to follow up your case.
Q: Can you provide sample?
A: Yes, for regular sizes sample is free but buyer need to pay freight cost.
Q: How long is your delivery time?
A: Our daily inventory is more than 8000 tons, so for common product size, just need 3 days from stocks; if the special size from new production, delivery 15-20 days.