JIS G4305 SUS304 Steel Plate | 304 Stainless Steel
What is JIS G4305 SUS304 Steel Plate?
As a professional stainless steel supplier and China Mill-Direct Exporter, SHH STEEL is pleased to present JIS G4305 SUS304 Steel Plate (also known as 304 stainless steel).
SUS304 is the most widely used austenitic stainless steel under the Japanese standard JIS G4305 for cold-rolled stainless steel plates, sheets and strips. It contains 18% chromium and 8% nickel, providing excellent corrosion resistance in a wide range of environments, outstanding formability, good weldability and attractive surface appearance. SUS304 is non-magnetic in the annealed condition and is the first choice for countless industrial, architectural, food and household applications.
SHH STEEL supplies SUS304 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 6.0 mm (thicker plates available on request), widths up to 1500 mm or more, 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 | SUS304 | Confirmed |
| Product Form | Cold-rolled Plate / Sheet / Coil | Available |
| Surface Finish | 2B, BA, No.4, HL, polished (common) | Available |
| Thickness Range | 0.3 mm – 6.0 mm (standard) | Custom sizes available |
| Width | Up to 1500 mm or wider | Available |
| Certification | EN 10204 3.1 / Mill Certificate | Available |
Chemical Composition
Chemical composition according to JIS G4305 (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) | 8.00 – 10.50 |
| Nitrogen (N) | ≤ 0.10 |
Note: The classic 18-8 composition (18% Cr + 8% Ni) provides the best balance of corrosion resistance, formability and cost among austenitic stainless steels.
Mechanical Properties
Mechanical properties of JIS G4305 SUS304 (annealed condition):
| Property | Value |
|---|---|
| Yield Strength (0.2%) | ≥ 205 MPa |
| Tensile Strength | ≥ 520 MPa |
| Elongation | ≥ 40% |
| Hardness | ≤ 187 HB / ≤ 90 HRB |
Density: Approximately 7.93 g/cm³ Magnetic: Non-magnetic in annealed condition; may become slightly magnetic after heavy cold working.
Surface Finishes
| Finish | Description | Typical Applications |
|---|---|---|
| 2B | Cold-rolled, annealed, pickled, skin-passed | General fabrication, industrial |
| BA | Bright Annealed – high reflectivity | Kitchen, decorative, clean rooms |
| No.4 | Brushed finish | Architectural, elevators, kitchen |
| HL | Hairline finish | Decorative panels |
| Polished | Mirror or custom polish | High-end decorative and food equipment |
Delivery Conditions
SHH STEEL supplies JIS G4305 SUS304 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 corrosion resistance in a wide range of environments
- Outstanding formability and deep-drawing capability
- Good weldability
- Attractive surface appearance with multiple finish options
- Non-magnetic in annealed condition
- Excellent toughness even at low temperatures
- The most versatile and widely used stainless steel grade
Equivalent Material Grades
| Grade | Standard | Notes |
|---|---|---|
| SUS304 | JIS G4305 | — |
| 304 | ASTM A240 | American equivalent |
| 1.4301 / X5CrNi18-10 | EN 10088-2 | European equivalent |
| 06Cr19Ni10 | GB/T 3280 | Chinese equivalent |
| UNS S30400 | — | Unified Numbering System |
Applications
IS G4305 SUS304 is used across almost every industry. Typical applications include:
| Application Area | Typical Components / Uses (Keywords) |
|---|---|
| Kitchen & Food Equipment | Sinks, countertops, cookware, food machinery – 304 Kitchen |
| Architectural & Construction | Cladding, elevators, handrails, panels – 304 Architectural |
| Chemical & Pharmaceutical | Tanks, pipes, equipment – 304 Chemical |
| Automotive & Transportation | Trim, exhaust components, structural parts – 304 Automotive |
| Home Appliances | Washing machines, refrigerators, panels – 304 Appliances |
| General Fabrication | Tanks, vessels, formed parts – 304 Fabrication |
Why Choose SHH STEEL
SHH STEEL provides SUS304 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 SUS304 Steel Plate.
Customers benefit from reliable supply, short lead times and cost-effective solutions for the world’s most popular stainless steel grade. Our professional export team provides technical support on surface selection, processing and packaging.
FAQ
- What is the difference between SUS304 and SUS304L?SUS304L has lower carbon content (≤0.030%), which provides better resistance to intergranular corrosion after welding. SUS304 is suitable for most general applications, while 304L is preferred for heavy welded structures.
- Is SUS304 magnetic?Is SUS304 magnetic?
- What is the most common surface finish for SUS304?2B is the most widely used industrial finish. BA and No.4 are very popular for decorative and kitchen applications.
Conclusion
JIS G4305 SUS304 Steel Plate (304 Stainless Steel) from SHH STEEL is the most versatile austenitic stainless steel, offering excellent corrosion resistance, outstanding formability and good weldability. As Mill Direct Supply, we provide competitive pricing, consistent quality and full technical support. Trust SHH STEEL for your SUS304 stainless steel requirements.
Contact SHH STEEL today for stock availability, pricing and technical support. JIS G4305 SUS304 Steel Plate, SUS304, 304 stainless steel, 304 stainless steel plate, SUS304 supplier
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