JIS G4305 SUS430 Steel Sheet | 430 BA/2B Stainless Steel
What is JIS G4305 SUS430 Steel Plate ?
As a professional stainless steel supplier and China Mill-Direct Exporter, SHH STEEL is pleased to present JIS G4305 SUS430 Steel Plate (also known as 430 stainless steel).
SUS430 is a ferritic stainless steel under the Japanese standard JIS G4305 for cold-rolled stainless steel plates, sheets and strips. It contains 16–18% chromium and has low carbon content, providing good resistance to atmospheric corrosion, oxidation and mild chemicals. It is magnetic, has excellent formability and is more cost-effective than austenitic grades such as 304. The most common surface finishes for this grade are 2B (matte) and BA (bright annealed, high reflectivity).
SHH STEEL supplies SUS430 as Mill Direct Supply, sourcing directly from major Chinese stainless steel mills (including Yongjin and other leading producers). 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 and coil or cut-to-length options. 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 | SUS430 | Confirmed |
| Product Form | Cold-rolled Plate / Sheet / Coil | Available |
| Surface Finish | 2B, BA (main), No.4, HL available | Available |
| Thickness Range | 0.3 mm – 3.0 mm (standard) | Custom sizes available |
| Width | Up to 1500 mm | Slit edge 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) | ≤ 0.75 |
| Manganese (Mn) | ≤ 1.00 |
| Phosphorus (P) | ≤ 0.040 |
| Sulfur (S) | ≤ 0.030 |
| Chromium (Cr) | 16.00 – 18.00 |
| Nickel (Ni) | ≤ 0.60 (typical) |
Note: The high chromium content forms a stable passive film that provides good corrosion resistance in mild environments.
Mechanical Properties
Mechanical properties of JIS G4305 SUS430 (annealed condition):
| Property | Value |
|---|---|
| Yield Strength (0.2%) | ≥ 205 MPa |
| Tensile Strength | ≥ 420 MPa |
| Elongation | ≥ 22% |
| Hardness | ≤ 183 HB / ≤ 88 HRB |
Density: 7.70 g/cm³ Magnetic: Yes (ferritic)
Surface Finishes
| Finish | Description | Typical Applications |
|---|---|---|
| 2B | Cold-rolled, annealed, pickled, skin-passed – smooth matte finish | Kitchen equipment, appliances, general fabrication |
| BA | Bright Annealed – high reflectivity, mirror-like appearance | Decorative panels, elevators, kitchenware, architectural use |
| No.4 | Brushed finish | Decorative and architectural |
| HL | Hairline finish | Decorative applications |
SHH STEEL mainly stocks and supplies 2B and BA finishes for SUS430.
Delivery Conditions
SHH STEEL supplies JIS G4305 SUS430 as Mill Direct Supply in cold-rolled annealed condition with 2B or BA finish.
Additional options available:
- Coil or cut-to-length sheets
- Slitting and cutting
- Protective film application
- Third-party inspection (SGS, BV, TUV, etc.)
Corrosion Resistance & Characteristics
- Good resistance to atmospheric corrosion and mild oxidizing environments
- Excellent oxidation resistance up to approximately 800–850°C
- Better thermal conductivity and lower thermal expansion than austenitic grades
- Fully magnetic
- Not recommended for highly chloride-rich or strongly reducing environments
Equivalent Material Grades
| Grade | Standard | Notes |
|---|---|---|
| SUS430 | JIS G4305 | — |
| 430 | ASTM A240 | American equivalent |
| 1.4016 / X6Cr17 | EN 10088-2 | European equivalent |
| 10Cr17 / 1Cr17 | GB/T 3280 | Chinese equivalent |
| UNS S43000 | — | Unified Numbering System |
Applications
JIS G4305 SUS430 (430 BA/2B) is widely used in applications requiring good corrosion resistance, formability and cost efficiency. Typical uses include:
| Application Area | Typical Components / Uses (Keywords) |
|---|---|
| Kitchen Equipment | Sinks, countertops, range hoods – 430 BA Kitchen |
| Home Appliances | Washing machine drums, refrigerator panels – 430 2B Appliances |
| Architectural & Decorative | Elevator panels, wall cladding – 430 BA Decorative |
| Automotive | Trim, exhaust components – 430 Automotive |
| Industrial Equipment | Heat exchangers, furnace parts – 430 Industrial |
| General Fabrication | Formed parts, stamped components – 430 Fabrication |
Why Choose SHH STEEL
SHH STEEL provides SUS430 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 surface quality (especially for BA and 2B finishes), and full Mill Test Certificates for JIS G4305 SUS430 Steel Plate.
Customers benefit from reliable supply, short lead times and cost-effective solutions for ferritic stainless steel projects worldwide. Our professional export team provides technical support on surface selection, processing and packaging.
FAQ
- What is the difference between 2B and BA finish for SUS430?2B is a smooth matte finish suitable for general fabrication. BA (Bright Annealed) has a high-reflectivity, almost mirror-like surface ideal for decorative and kitchen applications.
- Is SUS430 magnetic?Yes, SUS430 is a ferritic stainless steel and is fully magnetic.
- Can SUS430 replace 304?In mild corrosion environments and indoor applications, SUS430 can be a cost-effective alternative to 304, but it has lower corrosion resistance in chloride environments.
- What is the density of SUS430?Approximately 7.70 g/cm³.
- Do you supply SUS430 in coil or sheet form?Yes, both coil and cut-to-length sheets are available.
Conclusion
JIS G4305 SUS430 Steel Plate (430 BA/2B Stainless Steel) from SHH STEEL is a cost-effective ferritic stainless steel offering good corrosion resistance, excellent formability and attractive surface finishes. As Mill Direct Supply, we provide competitive pricing, consistent quality and full technical support. Trust SHH STEEL for your SUS430 stainless steel requirements.
Contact SHH STEEL today for stock availability, pricing and technical support. JIS G4305 SUS430 Steel Plate, SUS430, 430 BA, 430 2B, 430 stainless steel plate, SUS430 supplier
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