JIS G4305 SUS317L Steel Plate | 317L Stainless Steel
What is JIS G4305 SUS317L Steel Plate?
As a professional stainless steel supplier and China Mill-Direct Exporter, SHH STEEL is pleased to present JIS G4305 SUS317L Steel Plate, also known as 317L stainless steel.
JIS G4305 SUS317L is the low-carbon version of the high-molybdenum austenitic stainless steel under the Japanese standard for cold-rolled stainless steel plates, sheets and strips. With molybdenum content of 3–4% and carbon limited to ≤0.030%, SUS317L stainless steel combines superior resistance to pitting and crevice corrosion with excellent resistance to intergranular corrosion after welding. This makes JIS G4305 SUS317L the preferred grade for welded equipment operating in highly aggressive chloride and chemical environments. SHH STEEL supplies high-quality SUS317L as Mill Direct Supply from leading Chinese stainless steel mills.
Material Specification
| Specification Element | Requirement | SHH STEEL Compliance |
|---|---|---|
| Primary Standard | JIS G4305 | Full compliance |
| Steel Grade | SUS317L | Confirmed |
| Product Form | Cold-rolled Plate / Sheet / Coil | Available |
| Surface Finish | 2B, BA, No.4, HL, polished | Available |
| Thickness Range | 0.4 mm – 6.0 mm (standard) | Custom sizes available |
| Width | Up to 1500 mm or wider | Available |
| Certification | EN 10204 3.1 / Mill Certificate | Available |
JIS G4305 SUS317L steel plate is available in a wide range of thicknesses and finishes to meet the requirements of severe-service 317L stainless steel applications.
Chemical Composition
Chemical composition of JIS G4305 SUS317L (Heat Analysis):
| Element | Content (%) |
|---|---|
| Carbon (C) | ≤ 0.030 |
| Silicon (Si) | ≤ 1.00 |
| Manganese (Mn) | ≤ 2.00 |
| Phosphorus (P) | ≤ 0.045 |
| Sulfur (S) | ≤ 0.030 |
| Chromium (Cr) | 18.00 – 20.00 |
| Nickel (Ni) | 11.00 – 15.00 |
| Molybdenum (Mo) | 3.00 – 4.00 |
The combination of high molybdenum and ultra-low carbon in SUS317L stainless steel provides both outstanding pitting resistance and excellent protection against intergranular corrosion, which is the key advantage of JIS G4305 SUS317L.
Mechanical Properties
Mechanical properties of JIS G4305 SUS317L (annealed condition):
| Property | Value |
|---|---|
| Yield Strength (0.2%) | ≥ 175 MPa |
| Tensile Strength | ≥ 480 MPa |
| Elongation | ≥ 40% |
| Hardness | ≤ 187 HB |
JIS G4305 SUS317L stainless steel maintains excellent toughness and ductility, making 317L stainless steel plate highly suitable for forming and welding in corrosive service.
Density: Approximately 7.98 g/cm³ Magnetic: Non-magnetic in annealed condition.
Surface Finishes
| Finish | Description | Typical Applications |
|---|---|---|
| 2B | Cold-rolled, annealed, pickled, skin-passed | General industrial use of SUS317L |
| BA | Bright Annealed | Clean and decorative 317L applications |
| No.4 | Brushed finish | Architectural 317L stainless steel |
| HL | Hairline finish | Decorative panels |
| Polished | Mirror or custom polish | High-end 317L stainless steel products |
SHH STEEL provides JIS G4305 SUS317L steel plate in multiple surface finishes to suit both functional and aesthetic requirements of 317L stainless steel projects.
Delivery Conditions
SHH STEEL supplies JIS G4305 SUS317L as Mill Direct Supply in annealed condition with various surface finishes.
Additional options available for SUS317L stainless steel:
- Coil or cut-to-length sheets/plates
- Protective film
- Third-party inspection (SGS, BV, TUV, etc.)
Key Characteristics
- Superior pitting and crevice corrosion resistance due to high molybdenum in SUS317L
- Excellent resistance to intergranular corrosion after welding thanks to low carbon
- Outstanding performance of 317L stainless steel in severe chloride and chemical environments
- Superior weldability of JIS G4305 SUS317L
- Non-magnetic in annealed condition
- High toughness and good formability of 317L stainless steel plate
- Preferred grade for welded equipment in highly aggressive media
Equivalent Material Grades
| Grade | Standard | Notes |
|---|---|---|
| SUS317L | JIS G4305 | — |
| 317L | ASTM A240 | American equivalent |
| 1.4438 / X2CrNiMo18-15-4 | EN 10088-2 | European equivalent |
| 022Cr19Ni13Mo3 | GB/T 3280 | Chinese equivalent |
| UNS S31703 | — | Unified Numbering System |
JIS G4305 SUS317L is fully equivalent to international 317L stainless steel grades and is widely accepted in global corrosive-service projects.
Applications
JIS G4305 SUS317L (317L Stainless Steel) is widely used in highly corrosive and welded applications. Typical uses include:
| Application Area | Typical Components / Uses (Keywords) |
|---|---|
| Chemical Processing | Reactors, tanks, pipelines – SUS317L Chemical |
| Pulp & Paper Industry | Digesters, bleaching equipment – 317L Pulp Paper |
| Marine & Offshore | Seawater systems, desalination – 317L Marine |
| Flue Gas Desulfurization | FGD components – 317L FGD |
| Pharmaceutical & Food | High-purity welded equipment – 317L Pharmaceutical |
| General Fabrication | Heavy welded corrosive-service parts – 317L Fabrication |
Why Choose SHH STEEL
SHH STEEL provides JIS G4305 SUS317L as Mill Direct Supply. We maintain long-term strategic cooperation with major Chinese stainless steel mills and act as a first-level agent. This direct mill supply model allows us to offer competitive mill-direct pricing, faster delivery times, consistent quality, and full Mill Test Certificates for JIS G4305 SUS317L Steel Plate.
Customers benefit from reliable supply of high-quality 317L stainless steel, short lead times and professional technical support for SUS317L projects worldwide.
FAQ
- What is the main advantage of SUS317L over SUS316L?JIS G4305 SUS317L contains higher molybdenum (3–4%), providing significantly better resistance to pitting and crevice corrosion in severe environments compared with 316L stainless steel.
- What is the difference between SUS317 and SUS317L?SUS317L has much lower carbon content (≤0.030%), offering excellent resistance to intergranular corrosion after welding, while standard SUS317 has higher carbon.
- What is the density of SUS317L?Approximately 7.98 g/cm³ for JIS G4305 SUS317L stainless steel.
Conclusion
JIS G4305 SUS317L Steel Plate (317L Stainless Steel) from SHH STEEL is a low-carbon high-molybdenum austenitic stainless steel offering superior pitting resistance, excellent weldability and outstanding performance in severe corrosive environments. As Mill Direct Supply, we provide competitive pricing, consistent quality and full technical support. Trust SHH STEEL for your SUS317L stainless steel requirements.
Contact SHH STEEL today for stock availability, pricing and technical support. JIS G4305 SUS317L Steel Plate, SUS317L, 317L stainless steel, 317L stainless steel plate, SUS317L supplier
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