GB/T 4237 06Cr17Ni12Mo2Cu2（316Cu）Stainless Steel Plate

06Cr17Ni12Mo2Cu2 Stainless Steel Coil & Plate | GB/T 4237 06Cr17Ni12Mo2Cu2（316Cu) Stainless Steel Sheet Manufacturer & Exporter – Gangsteel

Gangsteel is a specialized manufacturer and global exporter of GB/T 4237 06Cr17Ni12Mo2Cu2 stainless steel hot-rolled coils, plates, and wide heavy plates.Internationally known as Grade 316Cu (copper-enhanced variant of 316), 06Cr17Ni12Mo2Cu2 is an austenitic chromium-nickel-molybdenum stainless steel with intentional copper addition (1.0–2.5%) that significantly improves resistance to sulfuric acid, phosphoric acid, organic acids, and certain reducing environments while retaining the excellent pitting and crevice corrosion resistance of standard 316.

With 16–18% Cr, 10–14% Ni, 2–3% Mo, and 1–2.5% Cu, 316Cu offers a PREN (Pitting Resistance Equivalent Number) of approximately 24–28 and superior performance in moderately reducing acids compared to 316/316L, making it the preferred material for chemical processing, pulp & paper, phosphoric acid production, fertilizer equipment, and desalination applications where both chloride resistance and acid corrosion resistance are required.

Produced under GB/T 4237-2015 (Stainless Steel Hot-Rolled Sheets and Strips), Gangsteel supplies 06Cr17Ni12Mo2Cu2 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 chemical, fertilizer, pulp & paper, desalination, pharmaceutical, and energy sectors.

Why Choose Gangsteel for 06Cr17Ni12Mo2Cu2 (316Cu) Hot-Rolled Stainless Steel?

Gangsteel’s wide heavy-plate rolling mills enable single-piece production of large acid storage tanks, phosphoric acid evaporators, digester vessels, and heat exchanger shells, minimizing welds and improving long-term corrosion performance in reducing acid environments. We maintain precise copper and molybdenum control to ensure consistent acid resistance and mechanical properties.

Chemical Composition of GB/T 4237 06Cr17Ni12Mo2Cu2

Standard Chemical Composition Table

Gangsteel controls copper at the higher end of the range to maximize resistance to sulfuric and phosphoric acids.

Mechanical Properties

Mechanical Properties Table (Annealed Condition)

Copper addition does not significantly alter room-temperature mechanical properties compared to 316.

Physical Properties

Physical Properties Table

Equivalent Materials Comparison Table

Key Insight: 06Cr17Ni12Mo2Cu2 (316Cu) provides markedly better resistance to reducing acids (sulfuric, phosphoric) than 316/316L due to copper addition.

Manufacturing Process: Hot Rolled at Gangsteel

Gangsteel's hot-rolling process for 06Cr17Ni12Mo2Cu2 includes:

1. Electric arc furnace + AOD refining → precise Cu/Mo 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 06Cr17Ni12Mo2Cu2 (316Cu) Hot-Rolled Products

• Phosphoric acid production equipment (reactors, evaporators, piping)
• Sulfuric acid handling and storage tanks
• Pulp & paper bleaching towers and digesters
• Chemical processing vessels for organic and reducing acids
• Desalination and seawater reverse osmosis components
• Fertilizer production equipment exposed to phosphoric/sulfuric acids

Advantages of Choosing 06Cr17Ni12Mo2Cu2 (316Cu)

• Superior resistance to reducing acids (sulfuric, phosphoric, organic)
• Excellent pitting and crevice corrosion resistance (PREN ~24–28)
• Outstanding weldability with no sensitization risk
• Good high-temperature oxidation resistance up to 870°C intermittent
• Hygienic, easy-to-clean surface for food/pharma
• Cost-effective upgrade over 316L for specific acid environments
• Wide global acceptance and recyclability

Corrosion and Oxidation Resistance

Copper and molybdenum provide excellent resistance to reducing acids and chlorides. Ultra-low carbon eliminates sensitization risk. Oxidation resistance up to ~870°C intermittent.

Weldability and Fabrication

Outstanding weldability with TIG/MIG/resistance/laser; ultra-low carbon prevents sensitization. Use ER316Cu or ER317L fillers. High ductility supports complex forming.

Why Choose Gangsteel for GB/T 4237 06Cr17Ni12Mo2Cu2?

• 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 acid corrosion, welding, and application

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 advantage of 316Cu (06Cr17Ni12Mo2Cu2) over 316L?

A: The intentional copper addition (1.0–2.5%) dramatically improves resistance to reducing acids (sulfuric, phosphoric, organic), making it far superior in phosphoric acid production and pulp bleaching compared to standard 316L.

Q2: Can 06Cr17Ni12Mo2Cu2 be used in seawater or highly concentrated acids?

A: It performs very well in dilute to moderate reducing acids and chlorides, but for severe seawater or concentrated strong acids, duplex grades (2205/2507) or higher-alloy materials may be required.

Q3: What finishes are available under GB/T 4237 for hot-rolled 316Cu?

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 06Cr17Ni12Mo2Cu2?

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

Q5: Is 316Cu weldable? What filler should be used?

A: Yes, excellent weldability. Use ER316Cu or ER317L fillers to match the copper and molybdenum content.

Q6: Does Gangsteel offer third-party inspection for GB/T 4237 316Cu material?

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

Q7: What is the lead time for hot-rolled 06Cr17Ni12Mo2Cu2 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 316Cu 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.

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Contact Gangsteel today for real-time pricing, stock availability, samples, or custom specifications of GB/T 4237 06Cr17Ni12Mo2Cu2 (316Cu) stainless steel hot-rolled coils, plates, and strips. Let us support your next reducing-acid or phosphoric-acid project with premium copper-molybdenum-enhanced stainless steel solutions.