JIS G4305 SUS301 Steel Plate | 301 Stainless Steel
What is JIS G4305 SUS301 Steel Plate?
As a professional stainless steel supplier and China Mill-Direct Exporter, SHH STEEL is pleased to present JIS G4305 SUS301 Steel Plate (also known as 301 stainless steel).
SUS301 is an austenitic stainless steel under the Japanese standard JIS G4305 for cold-rolled stainless steel plates, sheets and strips. It contains higher carbon and slightly lower nickel than SUS304, resulting in a significantly higher work-hardening rate. This allows SUS301 to achieve high strength and hardness through cold working while maintaining good corrosion resistance and formability in the annealed condition. It is widely used for applications requiring high strength-to-weight ratio, such as springs, railway components, fasteners and structural parts.
SHH STEEL supplies SUS301 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 | SUS301 | 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) | 16.00 – 18.00 |
| Nickel (Ni) | 6.00 – 8.00 |
| Nitrogen (N) | ≤ 0.10 |
Note: Higher carbon and lower nickel compared with SUS304 give SUS301 its characteristic high work-hardening rate.
Mechanical Properties
Mechanical properties of JIS G4305 SUS301 (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 (¼ Hard, ½ Hard, ¾ Hard, Full Hard tempers available).
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 | Decorative and high-end uses |
SHH STEEL supplies JIS G4305 SUS301 as Mill Direct Supply in annealed or various cold-worked tempers (¼H, ½H, ¾H, Full Hard) 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
- High work-hardening rate → excellent strength after cold working
- Good corrosion resistance in mild to moderate environments
- Excellent formability in annealed condition
- High strength-to-weight ratio
- Can be supplied in multiple hardness tempers
- Good fatigue resistance
- Cost-effective alternative to higher-nickel austenitic grades for strength-critical applications
Equivalent Material Grades
| Grade | Standard | Notes |
|---|---|---|
| SUS301 | JIS G4305 | — |
| 301 | ASTM A240 | American equivalent |
| 1.4310 / X10CrNi18-8 | EN 10088-2 | European equivalent |
| 12Cr17Ni7 / 1Cr17Ni7 | GB/T 3280 | Chinese equivalent |
| UNS S30100 | — | Unified Numbering System |
Applications
JIS G4305 SUS301 is widely used where high strength after cold working is required. Typical applications include:
| Application Area | Typical Components / Uses (Keywords) |
|---|---|
| Springs & Fasteners | Springs, clips, fasteners – 301 Spring |
| Railway & Transportation | Railway cars, structural components – 301 Railway |
| Automotive | Structural parts, trim – 301 Automotive |
| Architectural & Construction | Structural panels, supports – 301 Construction |
| Industrial Equipment | High-strength formed parts – 301 Industrial |
| General Fabrication | Cold-worked components – 301 Fabrication |
Why Choose SHH STEEL
SHH STEEL provides SUS301 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 SUS301 Steel Plate.
Customers benefit from reliable supply, short lead times and cost-effective solutions for high work-hardening austenitic stainless steel projects. Our professional export team provides technical support on temper selection, material properties and processing.
FAQ
- What is the main difference between SUS301 and SUS304?SUS301 has higher carbon and lower nickel content, resulting in a much higher work-hardening rate. It can achieve significantly higher strength through cold working compared with SUS304.
- Is SUS301 magnetic?In the annealed condition it is generally non-magnetic. After cold working it becomes slightly magnetic.
- What tempers are available for SUS301?Annealed, ¼ Hard, ½ Hard, ¾ Hard and Full Hard tempers are commonly available.
Conclusion
JIS G4305 SUS301 Steel Plate (301 Stainless Steel) from SHH STEEL is a high work-hardening austenitic stainless steel offering excellent strength after cold working, good corrosion resistance and formability. As Mill Direct Supply, we provide competitive pricing, consistent quality and full technical support. Trust SHH STEEL for your SUS301 stainless steel requirements.
Contact SHH STEEL today for stock availability, pricing and technical support. JIS G4305 SUS301 Steel Plate, SUS301, 301 stainless steel, 301 stainless steel plate, SUS301 supplier
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