GB/T 4237 06Cr25Ni20（310S）Stainless Steel Plate Supplier

06Cr25Ni20 Stainless Steel Coil & Plate | GB/T 4237 06Cr25Ni20（310S) Stainless Steel Sheet Manufacturer & Exporter – Gangsteel

Gangsteel is a leading manufacturer and global exporter of GB/T 4237 06Cr25Ni20 stainless steel hot-rolled coils, plates, and wide heavy plates. Internationally recognized as Grade 310S (the low-carbon stabilized version of 310), 06Cr25Ni20 is a high-chromium, high-nickel austenitic heat-resisting stainless steel specifically engineered for continuous service at elevated temperatures up to 1150°C in oxidizing atmospheres and up to 1035°C in reducing conditions. With 24–26% Cr and 19–22% Ni, it forms an exceptionally stable and adherent chromium oxide scale that provides outstanding resistance to oxidation, carburization, sulfidation, and cyclic thermal fatigue.

The low carbon content (≤0.08%) minimizes carbide precipitation during welding or prolonged high-temperature exposure, significantly reducing the risk of intergranular corrosion and improving weldability compared to the standard 310 (06Cr25Ni20 without "S" designation).

Produced under GB/T 4237-2015 (Stainless Steel Hot-Rolled Sheets and Strips), Gangsteel supplies 06Cr25Ni20 in thicknesses from 2 mm to 500 mm and widths up to 4200 mm — one of the widest hot-rolling capabilities available worldwide. Our products are delivered in standard hot-rolled finishes No.1 (annealed & pickled) and 2D (annealed & pickled dull) and are exported globally to petrochemical, power generation, furnace construction, cement kiln, waste incineration, heat treatment, and high-temperature piping industries.

Why Choose Gangsteel for 06Cr25Ni20 (310S) Hot-Rolled Stainless Steel?

Gangsteel’s wide heavy-plate rolling mills enable single-piece production of large radiant tubes, furnace muffles, retorts, calciner shells, and superheater panels, minimizing welds and maximizing service life in extreme high-temperature oxidizing and carburizing environments. We maintain strict control over carbon and annealing to ensure consistent creep strength and oxidation resistance.

Chemical Composition of GB/T 4237 06Cr25Ni20

Standard Chemical Composition Table

Gangsteel maintains high Cr/Ni levels and low carbon for superior scaling, carburization, and cyclic oxidation resistance.

Mechanical Properties

Mechanical Properties Table (Annealed Condition)

310S maintains useful strength and creep resistance at elevated temperatures (superior to 304/316).

Physical Properties

Physical Properties Table

Equivalent Materials Comparison Table

Key Insight: 06Cr25Ni20 (310S) offers superior oxidation and carburization resistance compared to 309S or 304 due to higher Cr/Ni content.

Manufacturing Process: Hot Rolled at Gangsteel

Gangsteel's hot-rolling process for 06Cr25Ni20 includes:

1. Electric arc furnace + AOD refining → precise high-Cr/Ni low-C control
2. Continuous casting into wide slabs
3. Reheating to 1150–1250°C
4. Hot rolling on wide heavy-plate mills (up to 4200 mm width)
5. Controlled cooling, leveling, and descaling
6. Solution annealing + pickling for No.1 finish or shot blasting + pickling for 2D finish
7. Edge trimming, coil splitting, or cut-to-length

Thickness range: 2 mm – 500 mm Width range: up to 4200 mm Length: up to 18 m (plate) or coil form

Finishes: No.1 (annealed & pickled), 2D (annealed & pickled dull)

Available Forms, Sizes, and Specifications

• Hot-rolled coils: 2.0–25.0 mm thick, up to 4200 mm wide
• Hot-rolled plates: 2.0–500 mm thick, up to 4200 mm wide × 18 m long
• Cut-to-size plates, slit coils, custom blanks

All compliant with GB/T 4237-2015; optional third-party certification (SGS, TUV, BV).

Key Applications of 06Cr25Ni20 (310S) Hot-Rolled Products

• Radiant tubes, muffles, retorts, and annealing covers in heat treatment furnaces
• Petrochemical reformers, crackers, and pyrolysis coils
• Boiler superheater/reheater tubes and tube supports
• Cement kiln preheaters, calciners, and clinker coolers
• Waste incinerators and high-temperature exhaust systems
• Power generation components exposed to oxidizing atmospheres

Advantages of Choosing 06Cr25Ni20 (310S)

• Exceptional oxidation and scaling resistance up to 1150°C continuous
• Superior resistance to carburization and sulfidation
• Good creep and rupture strength at elevated temperatures
• Weldable with low carbon for reduced intergranular corrosion risk
• Good formability and fabricability for complex heat-resistant parts
• Cost-effective high-temperature grade vs. nickel alloys
• Wide acceptance in petrochemical and furnace industries

Corrosion and Oxidation Resistance

High Cr/Ni content forms a stable oxide scale; excellent in oxidizing atmospheres, resists carburization/sulfidation. Low carbon minimizes sensitization. Oxidation resistance ~1150°C continuous, ~1035°C cyclic.

Weldability and Fabrication

Good weldability with TIG/MIG; low carbon reduces sensitization. Use ER310 fillers. High ductility supports forming; annealing may be needed post-weld for critical uses.

Why Choose Gangsteel for GB/T 4237 06Cr25Ni20?

• Industry-leading width (up to 4200 mm) and thickness (up to 500 mm)
• Full traceability and third-party inspection
• Competitive pricing with large-scale production
• Fast lead times and global export expertise
• Technical support for high-temp oxidation, creep design, and welding

Quality Assurance and Certifications

Every heat is tested for chemistry, mechanical properties, surface quality, and dimensions. Full MTRs (EN 10204 3.1) and third-party certification available.

Packaging, Shipping, and Logistics

Coils eye-to-wall/eye-to-sky on steel pallets; plates bundled with skids; seaworthy export packaging with waterproof wrapping and edge protection.

FAQ

Q1: What is the main difference between 310S (06Cr25Ni20) and 310?

A: 310S has lower carbon (≤0.08%) to improve weldability and reduce intergranular corrosion risk after welding or long-term heat exposure; 310 has higher carbon for slightly better high-temp strength but more sensitization risk.

Q2: Can 06Cr25Ni20 be used in reducing or carburizing atmospheres?

A: Yes, it performs very well in carburizing and mildly sulfidizing environments due to high Cr/Ni; for severely reducing conditions, nickel alloys (e.g., 800H) may be better.

Q3: What finishes are available under GB/T 4237 for hot-rolled 310S?

A: Standard finishes are No.1 (annealed & pickled) and 2D (annealed & pickled dull). No.1 is most common for further processing.

Q4: What is the maximum width and thickness Gangsteel can produce for 06Cr25Ni20?

A: Up to 4200 mm wide and 500 mm thick in hot-rolled plates; coils typically 2–25 mm thick.

Q5: Is 310S weldable? What filler should be used?

A: Yes, good weldability. Use ER310 or ER310H fillers to match high-temperature properties.

Q6: Does Gangsteel offer third-party inspection for GB/T 4237 310S material?

A: Yes — SGS, TUV, BV, or customer-nominated agencies are welcome at any stage.

Q7: What is the lead time for hot-rolled 06Cr25Ni20 coils or plates?

A: Standard sizes from stock: 7–15 days. Custom wide/heavy plates: 25–45 days depending on thickness and quantity.

Q8: Can Gangsteel provide 310S with BA or 2B finish?

A: Hot-rolled material is No.1 or 2D. For BA or 2B, we supply cold-rolled versions under GB/T 3280.

Keywords: 06Cr25Ni20, 310S stainless steel, GB/T 4237 310S, hot rolled 310S plate, 310S stainless coil, 310S sheet manufacturer

Contact Gangsteel today for real-time pricing, stock availability, samples, or custom specifications of GB/T 4237 06Cr25Ni20 (310S) stainless steel hot-rolled coils, plates, and strips. Let us support your next high-temperature furnace or petrochemical project with premium heat-resisting stainless steel solutions.