GB/T 4237 022Cr17Ni7（301L）Stainless Steel Plate Supplier

022Cr17Ni7 Stainless Steel Coil & Plate | GB/T 4237 022Cr17Ni7（301L) Stainless Steel Sheet Manufacturer & Exporter – Gangsteel

Gangsteel is a leading manufacturer and international exporter of GB/T 4237 022Cr17Ni7 stainless steel hot-rolled coils, plates, and wide heavy plates. Known globally as Grade 301L (low-carbon variant of 301), this austenitic chromium-nickel stainless steel is engineered for exceptional work-hardening capability, high strength after cold forming, excellent deep-drawability, and superior weldability without sensitization risk. With ultra-low carbon (≤0.030%) and balanced 17% Cr + 7% Ni, 022Cr17Ni7 achieves tensile strengths over 1000 MPa in cold-worked conditions while maintaining good ductility in the annealed state — making it the preferred choice for high-strength formed parts where conventional 304 would be over-specified or too costly.

Produced under GB/T 4237-2015 (Stainless Steel Hot-Rolled Sheets and Strips), Gangsteel supplies 022Cr17Ni7 in thicknesses from 2 mm to 500 mm and widths up to 4200 mm — among the widest hot-rolling capabilities in the industry. Our products are available in standard hot-rolled finishes No.1 (annealed & pickled) and 2D (annealed & pickled dull), and are widely exported to automotive structural components, railway vehicles, elevator panels, conveyor belts, springs, fasteners, and precision stamping industries worldwide.

This comprehensive product guide covers every detail of our GB/T 4237 022Cr17Ni7 (301L) hot-rolled stainless steel — from chemical composition and mechanical properties to manufacturing, equivalent materials comparison, applications, advantages, quality assurance, and frequently asked questions.

Introduction to 022Cr17Ni7 (301L) Stainless Steel

022Cr17Ni7 is the Chinese designation for Grade 301L, a low-carbon version of the classic austenitic 301 stainless steel. The ultra-low carbon content (max 0.030%) significantly reduces the risk of carbide precipitation during welding or heat exposure, preserving corrosion resistance in the heat-affected zone and eliminating the need for post-weld annealing in most cases. It offers rapid work hardening — tensile strength can exceed 1200–1800 MPa in cold-rolled or formed conditions — while retaining excellent elongation in the annealed state.

Compared to standard 304 (06Cr19Ni10), 301L provides higher yield strength after forming, better fatigue resistance, and lower material cost, making it ideal for lightweight, high-strength structural applications where moderate corrosion resistance is sufficient.

Gangsteel produces 022Cr17Ni7 exclusively via hot rolling, delivering heavy-gauge wide plates and coils optimized for subsequent cold reduction, stamping, roll forming, laser cutting, and welding in high-performance fabrication.

Chemical Composition of GB/T 4237 022Cr17Ni7

Chemical Composition Table

Gangsteel maintains low carbon and balanced Cr/Ni for optimal work hardening and weld performance.

Mechanical Properties

In annealed condition per GB/T 4237:

Mechanical Properties Table (Annealed)

Cold-Worked Tempers(after subsequent cold rolling):

• 1/4 Hard: Rm ≈ 860–1035 MPa, Rp0.2 ≈ 515 MPa
• 1/2 Hard: Rm ≈ 1035–1275 MPa, Rp0.2 ≈ 760 MPa
• Full Hard: Rm ≈ 1275–1800+ MPa, Rp0.2 ≈ 965 MPa

022Cr17Ni7's high work-hardening rate allows tailoring strength for structural applications.

Physical Properties

Physical Properties Table

Equivalent Materials Comparison Table

Key Insight: 022Cr17Ni7 (301L) offers significantly better weld-zone corrosion resistance than standard 301 due to ultra-low carbon.

Manufacturing Process: Hot Rolled at Gangsteel

Gangsteel's hot-rolling process for 022Cr17Ni7 includes:

1. Electric arc furnace + AOD refining → precise low-carbon 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.

Key Applications of 022Cr17Ni7 (301L) Hot-Rolled Products

• Railway vehicle structural panels and frames
• Elevator cabin walls and doors
• Automotive reinforcement parts and brackets
• Conveyor belts, hose clamps, high-strength supports
• Springs, fasteners, and precision stampings
• Architectural trim requiring high strength

Advantages of Choosing 022Cr17Ni7 (301L)

• Ultra-high strength after cold forming/work hardening
• Excellent deep-drawability and bendability
• Superior weldability (no sensitization risk)
• Cost-effective alternative to 304 for structural uses
• Good fatigue resistance in formed components
• Non-magnetic annealed; recyclable

Corrosion and Oxidation Resistance

Moderate resistance to atmospheric corrosion and mild chemicals; lower than 304 in chlorides or strong acids. Oxidation resistance up to ~870°C intermittent.

Weldability and Fabrication

Excellent weldability with ER308/ER308L fillers; ultra-low carbon eliminates sensitization. High ductility supports complex forming.

Why Choose Gangsteel for GB/T 4237 022Cr17Ni7?

• 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 forming, 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 difference between 301L (022Cr17Ni7) and standard 301?

A: 301L has ultra-low carbon (≤0.030%) to prevent sensitization during welding, offering better weld-zone corrosion resistance and no need for post-weld annealing in most cases.

Q2: Can 022Cr17Ni7 be used in outdoor or chloride-containing environments?

A: Not recommended for long-term exposure to chlorides (coastal, road salt). Use 304, 316, or 444 for superior pitting resistance.

Q3: What finishes are available under GB/T 4237 for hot-rolled 301L?

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 022Cr17Ni7?

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

Q5: Is 301L weldable? What filler should be used?

A: Yes, excellent weldability. Use ER308 or ER308L fillers for matching properties.

Q6: Does Gangsteel offer third-party inspection for GB/T 4237 301L material?

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

Q7: What is the lead time for hot-rolled 022Cr17Ni7 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 301L 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 022Cr17Ni7 (301L) stainless steel hot-rolled coils, plates, and strips. Let us support your next high-strength project with premium stainless steel solutions.