JIS G4305 SUS305 Steel Plate | 305 Stainless Steel
General Description
As a professional stainless steel supplier and China Mill-Direct Exporter, SHH STEEL is pleased to present JIS G4305 SUS305 Steel Plate (also known as 305 stainless steel).
SUS305 is an austenitic stainless steel under the Japanese standard JIS G4305 for cold-rolled stainless steel plates, sheets and strips. It contains higher nickel (typically 10.5–13%) than SUS304, which significantly reduces the work-hardening rate. This makes SUS305 particularly suitable for severe deep-drawing, spinning and cold-forming operations while maintaining good corrosion resistance similar to 304. It is widely used for kitchen sinks, cookware, deep-drawn components and other applications requiring excellent formability.
SHH STEEL supplies SUS305 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 | SUS305 | 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) | ≤ 0.12 |
| Silicon (Si) | ≤ 1.00 |
| Manganese (Mn) | ≤ 2.00 |
| Phosphorus (P) | ≤ 0.045 |
| Sulfur (S) | ≤ 0.030 |
| Chromium (Cr) | 17.00 – 19.00 |
| Nickel (Ni) | 10.50 – 13.00 |
| Nitrogen (N) | ≤ 0.10 |
Note: The higher nickel content compared with SUS304 reduces the work-hardening rate, making SUS305 ideal for severe cold-forming operations.
Mechanical Properties
Mechanical properties of JIS G4305 SUS305 (annealed condition):
| Property | Value |
|---|---|
| Yield Strength (0.2%) | ≥ 175 MPa |
| Tensile Strength | ≥ 480 MPa |
| Elongation | ≥ 40% |
| Hardness | ≤ 187 HB |
Density: Approximately 7.93 g/cm³ Magnetic: Non-magnetic in annealed condition; remains largely non-magnetic even after moderate cold working.
Surface Finishes
| Finish | Description | Typical Applications |
|---|---|---|
| 2B | Cold-rolled, annealed, pickled, skin-passed | General fabrication |
| BA | Bright Annealed – high reflectivity | Kitchen sinks, cookware, decorative |
| No.4 | Brushed finish | Architectural and visible parts |
| Polished | Mirror or custom polish | High-end kitchen and decorative uses |
Delivery Conditions
SHH STEEL supplies JIS G4305 SUS305 as Mill Direct Supply in annealed condition with various surface finishes.
Additional options available:
- Coil or cut-to-length sheets/plates
- Protective film
- Third-party inspection (SGS, BV, TUV, etc.)
Key Characteristics
- Excellent deep-drawing and spinning performance
- Low work-hardening rate compared with SUS304
- Good corrosion resistance similar to 304
- Outstanding formability for complex shapes
- Non-magnetic in annealed condition
- Suitable for severe cold-forming operations
- Ideal for kitchen sinks, cookware and deep-drawn components
Equivalent Material Grades
| Grade | Standard | Notes |
|---|---|---|
| SUS305 | JIS G4305 | — |
| 305 | ASTM A240 | American equivalent |
| 1.4303 / X4CrNi18-12 | EN 10088-2 | European equivalent |
| 1Cr18Ni12 | GB/T 3280 | Chinese equivalent |
| UNS S30500 | — | Unified Numbering System |
Applications
JIS G4305 SUS305 is primarily used where superior deep-drawing and cold-forming performance are required. Typical applications include:
| Application Area | Typical Components / Uses (Keywords) |
|---|---|
| Kitchen Equipment | Kitchen sinks, cookware, bowls – 305 Kitchen |
| Deep-Drawn Components | Complex formed parts, housings – 305 Deep Drawing |
| Food Processing | Containers, trays, equipment – 305 Food |
| Automotive | Deep-drawn trim and components – 305 Automotive |
| Decorative & Architectural | Formed decorative panels – 305 Decorative |
| General Fabrication | Severe cold-formed parts – 305 Fabrication |
Why Choose SHH STEEL
SHH STEEL provides SUS305 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 SUS305 Steel Plate.
Customers benefit from reliable supply, short lead times and cost-effective solutions for high-formability austenitic stainless steel projects. Our professional export team provides technical support on material selection and deep-drawing applications.
FAQ
- What is the main advantage of SUS305 over SUS304?SUS305 has higher nickel content, which significantly reduces the work-hardening rate. This makes it much more suitable for severe deep-drawing, spinning and complex cold-forming operations.
- Is SUS305 better for kitchen sinks than 304?Yes. Because of its superior deep-drawing performance, SUS305 is often preferred for manufacturing kitchen sinks and other heavily formed kitchen products.
- Is SUS305 magnetic?In the annealed condition it is non-magnetic. Due to its higher nickel content, it remains largely non-magnetic even after moderate cold working.
Conclusion
JIS G4305 SUS305 Steel Plate (305 Stainless Steel) from SHH STEEL is a high-nickel austenitic stainless steel offering excellent deep-drawing properties, low work-hardening rate and good corrosion resistance. As Mill Direct Supply, we provide competitive pricing, consistent quality and full technical support. Trust SHH STEEL for your SUS305 stainless steel requirements.
Contact SHH STEEL today for stock availability, pricing and technical support. JIS G4305 SUS305 Steel Plate, SUS305, 305 stainless steel, 305 stainless steel plate, SUS305 supplier
Quality Steel Needed? Inquire for Offers
Related Products
