JIS G4305 SUS317 Steel Plate | 317 Stainless Steel
What is JIS G4305 SUS317 Steel Plate?
As a professional stainless steel supplier and China Mill-Direct Exporter, SHH STEEL is pleased to present JIS G4305 SUS317 Steel Plate, also known as 317 stainless steel.
JIS G4305 SUS317 is a higher-alloy austenitic stainless steel under the Japanese standard for cold-rolled stainless steel plates, sheets and strips. With increased molybdenum content (typically 3–4%), SUS317 stainless steel provides significantly better resistance to pitting and crevice corrosion than standard SUS316 or SUS316L in chloride-containing and highly corrosive chemical environments. JIS G4305 SUS317 also offers good formability and weldability, making it suitable for demanding chemical processing and marine applications. SHH STEEL supplies high-quality SUS317 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 | SUS317 | 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 SUS317 steel plate is available in various thicknesses and finishes to meet the requirements of severe-service 317 stainless steel applications.
Chemical Composition
Chemical composition of JIS G4305 SUS317 (Heat Analysis):
| Element | Content (%) |
|---|---|
| Carbon (C) | ≤ 0.08 |
| 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 higher molybdenum content in SUS317 stainless steel is the key factor that provides superior pitting and crevice corrosion resistance compared with JIS G4305 SUS316 grades.
Mechanical Properties
Mechanical properties of JIS G4305 SUS317 (annealed condition):
| Property | Value |
|---|---|
| Yield Strength (0.2%) | ≥ 205 MPa |
| Tensile Strength | ≥ 520 MPa |
| Elongation | ≥ 40% |
| Hardness | ≤ 187 HB |
JIS G4305 SUS317 stainless steel maintains excellent toughness and ductility, making 317 stainless steel plate suitable for fabrication in highly corrosive environments.
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 SUS317 |
| BA | Bright Annealed | Clean and decorative 317 applications |
| No.4 | Brushed finish | Architectural 317 stainless steel |
| HL | Hairline finish | Decorative panels |
| Polished | Mirror or custom polish | High-end 317 stainless steel products |
SHH STEEL provides JIS G4305 SUS317 steel plate in multiple surface finishes to suit both functional and aesthetic requirements of 317 stainless steel projects.
Delivery Conditions
SHH STEEL supplies JIS G4305 SUS317 as Mill Direct Supply in annealed condition with various surface finishes.
Additional options available for SUS317 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 higher molybdenum in SUS317
- Better performance than 316/316L in severe chloride and chemical environments
- Good weldability and formability of JIS G4305 SUS317
- Excellent toughness of 317 stainless steel plate
- Non-magnetic in annealed condition
- Suitable for highly corrosive chemical processing equipment
- Higher alloy content provides improved durability in aggressive media
Equivalent Material Grades
| Grade | Standard | Notes |
|---|---|---|
| SUS317 | JIS G4305 | — |
| 317 | ASTM A240 | American equivalent |
| 1.4449 / X3CrNiMo18-12-3 | EN 10088-2 | Closest European equivalent |
| 06Cr19Ni13Mo3 | GB/T 3280 | Chinese equivalent |
| UNS S31700 | — | Unified Numbering System |
JIS G4305 SUS317 is fully equivalent to international 317 stainless steel grades and is accepted in global corrosive-service projects.
Applications
JIS G4305 SUS317 (317 Stainless Steel) is widely used in highly corrosive environments. Typical applications include:
| Application Area | Typical Components / Uses (Keywords) |
|---|---|
| Chemical Processing | Reactors, tanks, pipelines – SUS317 Chemical |
| Pulp & Paper Industry | Digesters, bleaching equipment – 317 Pulp Paper |
| Marine & Offshore | Seawater systems, coastal equipment – 317 Marine |
| Flue Gas Desulfurization | FGD components – 317 FGD |
| Pharmaceutical | High-purity equipment – 317 Pharmaceutical |
| General Fabrication | Severe corrosive-service parts – 317 Fabrication |
Why Choose SHH STEEL
SHH STEEL provides JIS G4305 SUS317 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 SUS317 Steel Plate.
Customers benefit from reliable supply of high-quality 317 stainless steel, short lead times and professional technical support for SUS317 projects worldwide.
FAQ
- What is the main advantage of SUS317 over SUS316?JIS G4305 SUS317 contains higher molybdenum (3–4%), which provides significantly better resistance to pitting and crevice corrosion in severe chloride and chemical environments compared with 316 stainless steel.
- Is SUS317 magnetic?317 stainless steel is non-magnetic in the annealed condition. It may become slightly magnetic after heavy cold working.
- When should I choose SUS317 instead of SUS316L?Choose SUS317 when the environment is more aggressive (higher chlorides, acidic conditions, or higher temperatures) where the additional molybdenum content of 317 stainless steel provides a clear performance advantage.
Conclusion
JIS G4305 SUS317 Steel Plate (317 Stainless Steel) from SHH STEEL is a high-molybdenum austenitic stainless steel offering superior pitting and crevice corrosion resistance for severe chemical and marine environments. As Mill Direct Supply, we provide competitive pricing, consistent quality and full technical support. Trust SHH STEEL for your SUS317 stainless steel requirements.
Contact SHH STEEL today for stock availability, pricing and technical support. JIS G4305 SUS317 Steel Plate, SUS317, 317 stainless steel, 317 stainless steel plate, SUS317 supplier
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