JIS G4305 SUS302 Steel Plate | 302 Stainless Steel
What is JIS G4305 SUS302 Steel Plate?
As a professional stainless steel supplier and China Mill-Direct Exporter, SHH STEEL is pleased to present JIS G4305 SUS302 Steel Plate (also known as 302 stainless steel).
SUS302 is an austenitic stainless steel under the Japanese standard JIS G4305 for cold-rolled stainless steel plates, sheets and strips. It is similar to SUS304 but contains higher carbon (up to 0.15%), which provides higher strength and better work-hardening characteristics while maintaining good corrosion resistance and excellent formability. SUS302 is widely used for springs, fasteners, food processing equipment and general industrial applications where higher strength than 304 is desired.
SHH STEEL supplies SUS302 as Mill Direct Supply, sourcing directly from major Chinese stainless steel mills. This ensures competitive mill pricing, consistent quality, shorter lead times and full traceability. We offer thicknesses from 0.3 mm to 3.0 mm (thicker plates available on request), widths up to 1500 mm, in coil or cut-to-length form. All materials are delivered with full Mill Test Certificates.
Material Specification
| Specification Element | Requirement | SHH STEEL Compliance |
|---|---|---|
| Primary Standard | JIS G4305 | Full compliance |
| Steel Grade | SUS302 | Confirmed |
| Product Form | Cold-rolled Plate / Sheet / Coil | Available |
| Surface Finish | 2B, BA, No.4, polished (common) | Available |
| Thickness Range | 0.3 mm – 3.0 mm (standard) | Custom sizes available |
| Width | Up to 1500 mm | Available |
| Certification | EN 10204 3.1 / Mill Certificate | Available |
Chemical Composition
Chemical composition according to JIS G4305 (Heat Analysis):
| Element | Content (%) |
|---|---|
| Carbon (C) | ≤ 0.15 |
| Silicon (Si) | ≤ 1.00 |
| Manganese (Mn) | ≤ 2.00 |
| Phosphorus (P) | ≤ 0.045 |
| Sulfur (S) | ≤ 0.030 |
| Chromium (Cr) | 17.00 – 19.00 |
| Nickel (Ni) | 8.00 – 10.00 |
| Nitrogen (N) | ≤ 0.10 |
Note: Higher carbon content compared with SUS304 provides increased strength and work-hardening capability.
Mechanical Properties
Mechanical properties of JIS G4305 SUS302 (annealed condition):
| Property | Value |
|---|---|
| Yield Strength (0.2%) | ≥ 205 MPa |
| Tensile Strength | ≥ 520 MPa |
| Elongation | ≥ 40% |
| Hardness | ≤ 207 HB |
After cold working, strength and hardness can be significantly increased.
Density: Approximately 7.93 g/cm³ Magnetic: Generally non-magnetic in annealed condition; becomes slightly magnetic after cold working.
Surface Finishes
| Finish | Description | Typical Applications |
|---|---|---|
| 2B | Cold-rolled, annealed, pickled, skin-passed | General fabrication |
| BA | Bright Annealed | Cleaner and decorative applications |
| No.4 | Brushed finish | Architectural and visible parts |
| Polished | Mirror or custom polish | Food equipment and decorative uses |
Delivery Conditions
SHH STEEL supplies JIS G4305 SUS302 as Mill Direct Supply in annealed or cold-worked conditions according to customer requirements.
Additional options available:
- Coil or cut-to-length sheets/plates
- Protective film
- Third-party inspection (SGS, BV, TUV, etc.)
Key Characteristics
- Higher strength than SUS304 due to increased carbon content
- Good corrosion resistance in mild to moderate environments
- Excellent formability and deep-drawing capability
- High work-hardening rate
- Good toughness and ductility
- Suitable for both annealed and cold-worked applications
- Cost-effective austenitic grade for strength-critical uses
Equivalent Material Grades
| Grade | Standard | Notes |
|---|---|---|
| SUS302 | JIS G4305 | — |
| 302 | ASTM A240 | American equivalent |
| 1.4319 / X10CrNi18-8 | EN 10088-2 | European equivalent |
| 1Cr18Ni9 | GB/T 3280 | Chinese equivalent |
| UNS S30200 | — | Unified Numbering System |
Applications
JIS G4305 SUS302 is widely used where good corrosion resistance combined with higher strength is required. Typical applications include:
| Application Area | Typical Components / Uses (Keywords) |
|---|---|
| Springs & Fasteners | Springs, clips, screws, bolts – 302 Spring |
| Food Processing Equipment | Food machinery parts, containers – 302 Food |
| Automotive | Trim, structural components – 302 Automotive |
| Architectural & Construction | Decorative and structural panels – 302 Construction |
| Industrial Equipment | Formed and stamped parts – 302 Industrial |
| General Fabrication | High-strength formed components – 302 Fabrication |
Why Choose SHH STEEL
SHH STEEL provides SUS302 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 SUS302 Steel Plate.
Customers benefit from reliable supply, short lead times and cost-effective solutions for austenitic stainless steel projects requiring higher strength than 304. Our professional export team provides technical support on material selection and processing.
FAQ
- What is the main difference between SUS302 and SUS304?SUS302 has higher carbon content (up to 0.15%) than SUS304 (≤0.08%), resulting in higher strength and better work-hardening characteristics, while corrosion resistance remains similar in most environments.
- Is SUS302 magnetic?In the annealed condition it is generally non-magnetic. After cold working it may become slightly magnetic.
- Can SUS302 be used instead of 304?Yes, in many applications where higher strength is beneficial and welding is not critical. For welded structures requiring maximum corrosion resistance, 304L or 304 is usually preferred.
- What is the density of SUS302?Approximately 7.93 g/cm³.
Conclusion
JIS G4305 SUS302 Steel Plate (302 Stainless Steel) from SHH STEEL is an austenitic stainless steel offering good corrosion resistance, higher strength than 304 and excellent formability. As Mill Direct Supply, we provide competitive pricing, consistent quality and full technical support. Trust SHH STEEL for your SUS302 stainless steel requirements.
Contact SHH STEEL today for stock availability, pricing and technical support. JIS G4305 SUS302 Steel Plate, SUS302, 302 stainless steel, 302 stainless steel plate, SUS302 supplier
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