GB/T 4237 022Cr19Ni13Mo3（317L）Stainless Steel Plate Suppl

022Cr19Ni13Mo3 Stainless Steel Coil & Plate | GB/T 4237 022Cr19Ni13Mo3（317L) Stainless Steel Sheet Manufacturer & Exporter – Gangsteel

Gangsteel is a leading manufacturer and global exporter of GB/T 4237 022Cr19Ni13Mo3 stainless steel hot-rolled coils, plates, and wide heavy plates. Internationally recognized as Grade 317L (low-carbon, high-molybdenum variant of 317), 022Cr19Ni13Mo3 is an austenitic chromium-nickel-molybdenum stainless steel engineered for superior resistance to pitting, crevice corrosion, and chloride-induced stress corrosion cracking — significantly outperforming standard 304L and even 316L in aggressive chemical, acidic, and chloride-rich environments.

With ultra-low carbon (≤0.030%) and elevated molybdenum (3.0–4.0%), 317L provides a PREN (Pitting Resistance Equivalent Number) of approximately 29–33, making it ideal for applications involving sulfuric acid, phosphoric acid, pulp & paper liquors, chemical processing, desalination, and offshore/marine service.

Produced under GB/T 4237-2015 (Stainless Steel Hot-Rolled Sheets and Strips), Gangsteel supplies 022Cr19Ni13Mo3 in thicknesses from 2 mm to 500 mm and widths up to 4200 mm — one of the widest hot-rolling capabilities in the industry. Our products are delivered in standard hot-rolled finishes No.1 (annealed & pickled) and 2D (annealed & pickled dull) and are exported worldwide to chemical, petrochemical, pulp & paper, desalination, pharmaceutical, and energy sectors.

Why Choose Gangsteel for 022Cr19Ni13Mo3 (317L) Hot-Rolled Stainless Steel?

Gangsteel’s wide heavy-plate rolling mills allow single-piece production of large acid storage tanks, digesters, evaporator bodies, and heat exchanger shells, reducing welds and improving service life in highly corrosive conditions. We maintain strict control over molybdenum and carbon to ensure consistent pitting resistance and weld performance.

Chemical Composition of GB/T 4237 022Cr19Ni13Mo3

Standard Chemical Composition Table

Gangsteel consistently produces at the higher end of molybdenum range to maximize PREN and corrosion performance.

Mechanical Properties

Mechanical Properties Table (Annealed Condition)

Moderate work-hardening rate supports cold forming without excessive strength gain.

Physical Properties

Physical Properties Table

Equivalent Materials Comparison Table

Key Insight: 022Cr19Ni13Mo3 (317L) provides significantly better pitting and crevice corrosion resistance (PREN ~29–33) than 316L (PREN ~24–26) due to higher molybdenum.

Manufacturing Process: Hot Rolled at Gangsteel

Gangsteel's hot-rolling process for 022Cr19Ni13Mo3 includes:

1. Electric arc furnace + AOD refining → precise high-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 022Cr19Ni13Mo3 (317L) Hot-Rolled Products

• Chemical and petrochemical processing equipment (tanks, reactors, piping)
• Pulp and paper digesters, bleach towers, evaporators
• Phosphoric and sulfuric acid handling systems
• Desalination plants and seawater reverse osmosis components
• Offshore platforms and marine exhaust systems
• Pharmaceutical and food-grade vessels requiring high corrosion resistance

Advantages of Choosing 022Cr19Ni13Mo3 (317L)

• Superior pitting and crevice corrosion resistance in chlorides and acids
• Excellent resistance to intergranular corrosion after welding
• Good high-temperature oxidation resistance up to 870°C intermittent
• Outstanding weldability and formability
• Cost-effective upgrade over 316L for severe corrosive service
• Hygienic, easy-to-clean surface for food/pharma
• Wide global acceptance and recyclability

Corrosion and Oxidation Resistance

High molybdenum content provides excellent resistance to pitting (PREN ~29–33), crevice corrosion, and chloride stress corrosion cracking. 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 ER317L fillers. High ductility supports complex forming.

Why Choose Gangsteel for GB/T 4237 022Cr19Ni13Mo3?

• 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 advantage of 317L (022Cr19Ni13Mo3) over 316L?

A: 317L has higher molybdenum (3.0–4.0% vs. 2.0–3.0% in 316L), resulting in significantly better pitting and crevice corrosion resistance (PREN ~29–33 vs. ~24–26), especially in sulfuric acid, phosphoric acid, and chloride environments.

Q2: Can 022Cr19Ni13Mo3 be used in seawater or highly acidic conditions?

A: Yes, it performs well in many chloride and acid applications (e.g., dilute sulfuric acid, pulp liquors), but for severe seawater or concentrated acids, duplex grades like 2205 or 2507 may be preferred.

Q3: What finishes are available under GB/T 4237 for hot-rolled 317L?

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 022Cr19Ni13Mo3?

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

Q5: Is 317L weldable? What filler should be used?

A: Yes, excellent weldability. Use ER317L fillers to match the higher molybdenum content.

Q6: Does Gangsteel offer third-party inspection for GB/T 4237 317L material?

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

Q7: What is the lead time for hot-rolled 022Cr19Ni13Mo3 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 317L 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.

Contact Gangsteel today for real-time pricing, stock availability, samples, or custom specifications of GB/T 4237 022Cr19Ni13Mo3 (317L) stainless steel hot-rolled coils, plates, and strips. Let us support your next highly corrosive project with premium high-molybdenum stainless steel solutions.