GB/T 4237 06Cr17Ni12Mo2N（316N）Stainless Steel Plate Suppl

 

06Cr17Ni12Mo2N Stainless Steel Coil & Plate | GB/T 4237 06Cr17Ni12Mo2N（316N) Stainless Steel Sheet Manufacturer & Exporter – Gangsteel

Gangsteel is a specialized manufacturer and global exporter of GB/T 4237 06Cr17Ni12Mo2N stainless steel hot-rolled coils, plates, and wide heavy plates. Internationally known as Grade 316N (nitrogen-enhanced variant of 316), 06Cr17Ni12Mo2N is an austenitic chromium-nickel-molybdenum stainless steel with controlled nitrogen addition (0.10–0.16%) that significantly improves yield strength, tensile strength, and resistance to pitting and crevice corrosion while retaining the excellent weldability, formability, and general corrosion resistance of standard 316.

With 16–18% Cr, 10–14% Ni, 2–3% Mo, and intentional nitrogen strengthening, 316N offers a PREN (Pitting Resistance Equivalent Number) of approximately 26–30, making it ideal for structural applications, pressure vessels, heat exchangers, and components requiring higher strength and improved localized corrosion resistance than conventional 316 (06Cr17Ni12Mo2) or 316L.

Produced under GB/T 4237-2015 (Stainless Steel Hot-Rolled Sheets and Strips), Gangsteel supplies 06Cr17Ni12Mo2N 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 processing, energy, marine, food & beverage, pharmaceutical, desalination, and structural industries.

 

Why Choose Gangsteel for 06Cr17Ni12Mo2N (316N) Hot-Rolled Stainless Steel?

Gangsteel’s wide heavy-plate rolling mills enable single-piece production of large tanks, pressure vessel heads, heat exchanger tubesheets, and structural panels, reducing welds and improving service life in corrosive and high-strength applications. We precisely control nitrogen content and annealing to deliver consistent mechanical strength and pitting resistance.

 

Chemical Composition of GB/T 4237 06Cr17Ni12Mo2N

Standard Chemical Composition Table

Element	Symbol	Minimum (%)	Maximum (%)	Typical Range (%)	Notes
Carbon	C	-	0.08	≤0.045–0.07	Low to minimize carbide precipitation
Silicon	Si	-	1.00	≤0.50–0.80	Improves oxidation resistance
Manganese	Mn	-	2.00	≤1.00–1.50	Austenite stabilizer
Phosphorus	P	-	0.045	≤0.030	Controlled for weldability
Sulfur	S	-	0.030	≤0.015–0.020	Minimized for corrosion
Chromium	Cr	16.00	18.00	16.50–17.50	Forms protective passive layer
Nickel	Ni	10.00	14.00	10.50–12.50	Enhances ductility and resistance
Molybdenum	Mo	2.00	3.00	2.00–2.50	Critical for pitting/crevice resistance
Nitrogen	N	0.10	0.16	0.12–0.15	Key strengthening element (higher than 316)
Iron	Fe	Balance	Balance	Balance	Base element

Gangsteel controls nitrogen at the higher end of the range to maximize strength gain while preserving corrosion resistance.

 

Mechanical Properties

Mechanical Properties Table (Annealed Condition)

Property	Symbol	Minimum Requirement	Typical Value	Units	Notes
Tensile Strength	Rm	≥ 550	550–750	MPa	~10–20% higher than 316 due to N
Yield Strength (0.2% offset)	Rp0.2	≥ 275	280–380	MPa	Significantly improved vs. 316
Elongation (50 mm gauge)	A50	≥ 40	40–55	%	Excellent ductility maintained
Hardness (Rockwell B)	HRB	≤ 95	85–92	HRB	Soft, formable
Hardness (Brinell)	HB	≤ 217	170–200	HB	Reference
Bend Test (180°)	-	No cracks	Excellent	-	Ideal for deep drawing

Nitrogen strengthening provides higher yield without sacrificing elongation.

 

Physical Properties

Physical Properties Table

Property	Value (Metric)	Value (Imperial)	Temperature/Condition	Notes
Density	7.98–8.00 g/cm³	0.288–0.289 lb/in³	Room temperature	Austenitic standard
Elastic Modulus	193–200 GPa	28–29 × 10⁶psi	Room temperature	Typical
Thermal Conductivity	16.2–16.3 W/m·K	9.4 BTU/hr·ft·°F	100°C	Moderate
Specific Heat Capacity	500 J/kg·K	0.12 BTU/lb·°F	Room temperature	Standard
Coefficient of Thermal Expansion	16.0–18.0 × 10⁻⁶/°C	8.9–10.0 × 10⁻⁶/°F	0–100°C	Similar to 316
Electrical Resistivity	720–750 nΩ·m	27–28 μΩ·in	Room temperature	Austenitic norm
Melting Range	1370–1400°C	2500–2550°F	-	Approximate

 

Equivalent Materials Comparison Table

Standard	Grade / Designation	UNS Number	EN / W.Nr.	Other Designation	Key Notes / Differences
GB/T 4237	06Cr17Ni12Mo2N	-	-	316N	Chinese hot-rolled N-enhanced spec
ASTM A240	316N (Type 316N)	S31651	-	316N	US equivalent; nitrogen strengthened
EN 10088-2	X5CrNiMo17-12-2 + N	-	1.4406 (close)	316N	European match; nitrogen variant
JIS G4304/5	SUS316N	-	-	SUS316N	Japanese equivalent; N-added
AISI / Trade	AISI 316N / Grade 316N	S31651	1.4406	316N	Global trade name; interchangeable
Related	316 (06Cr17Ni12Mo2)	S31600	1.4401	316	Standard version; lower strength

Key Insight: 06Cr17Ni12Mo2N (316N) provides ~20–30% higher yield strength than standard 316 due to nitrogen addition, with similar or slightly better pitting resistance.

 

Manufacturing Process: Hot Rolled at Gangsteel

Gangsteel's hot-rolling process for 06Cr17Ni12Mo2N includes:

1. Electric arc furnace + AOD refining → precise nitrogen & Mo 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 06Cr17Ni12Mo2N (316N) Hot-Rolled Products

• Pressure vessels and storage tanks requiring higher strength
• Chemical processing equipment exposed to chlorides and acids
• Heat exchangers and condensers in corrosive service
• Marine and offshore structural components
• Food and pharmaceutical vessels needing enhanced mechanicals
• High-strength welded piping and fittings

Advantages of Choosing 06Cr17Ni12Mo2N (316N)

• 20–30% higher yield strength than standard 316 due to nitrogen
• Excellent pitting and crevice corrosion resistance (PREN ~26–30)
• Superior 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 316 for strength-critical applications
• Wide global acceptance and recyclability

Corrosion and Oxidation Resistance

High molybdenum and nitrogen provide excellent resistance to pitting, crevice corrosion, and chloride stress corrosion cracking. Low carbon eliminates sensitization risk. Oxidation resistance up to ~870°C intermittent.

Weldability and Fabrication

Outstanding weldability with TIG/MIG/resistance/laser; low carbon prevents sensitization. Use ER316/ER316L fillers. High ductility supports complex forming.

Why Choose Gangsteel for GB/T 4237 06Cr17Ni12Mo2N?

• 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 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 benefit of 316N (06Cr17Ni12Mo2N) over standard 316?

A: The controlled nitrogen addition increases yield strength by 20–30% while maintaining similar corrosion resistance and formability, making it ideal for structural and pressure-containing applications requiring higher mechanical performance.

Q2: Can 06Cr17Ni12Mo2N be used in seawater or highly acidic conditions?

A: Yes, it performs well in many chloride and dilute acid applications, but for severe seawater or concentrated acids, duplex grades (2205/2507) or higher-Mo alloys may be preferred.

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

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 06Cr17Ni12Mo2N?

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

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

A: Yes, excellent weldability. Use ER316 or ER316L fillers for matching properties.

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

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

Q7: What is the lead time for hot-rolled 06Cr17Ni12Mo2N 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 316N 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 06Cr17Ni12Mo2N (316N) stainless steel hot-rolled coils, plates, and strips. Let us support your next high-strength, corrosion-resistant project with premium nitrogen-enhanced stainless steel solutions.