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.
2. Technical Specifications
| 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 |
3. Competitive Advantages
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).
4. Frontier Applications
- Fusion Reactor Blankets: Structural supports for lithium-lead coolant loops in tokamak
fusion energy systems.
- Hybrid CSP-PV Plants: Heat transfer bars for combined solar-thermal and photovoltaic
energy storage at 1000°C+ operation.
- Plastic Pyrolysis Reactors: Catalytic converter grids converting waste plastic to hydrogen at
extreme temperatures.
- Deep-Sea Hydrothermal Vents: Corrosion-immune sensor mounts for geothermal energy harvesting
in acidic brine.
- Mars Habitat ISRU: Regolith-processing heat exchangers for in-situ resource
utilization in extraterrestrial colonies.
- Carbon Black Recovery: Bars for rotary kilns capturing CO₂ from tire pyrolysis while
generating industrial carbon.
- Blue Ammonia Synthesis: Reactor internals for methane cracking with integrated carbon
capture and storage (CCS).
- Spaceplane Skin Panels: Subframes for thermal protection systems (TPS) in hypersonic
re-entry vehicles.
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.
