JIS G4305 SUS430J1 Steel Plate | 430J1 BA/2B Stainless Steel
General Description
As a professional stainless steel supplier and China Mill-Direct Exporter, SHH STEEL is pleased to present JIS G4305 SUS430J1 Steel Plate (also known as 430J1 stainless steel).
SUS430J1 is a ferritic stainless steel under the Japanese standard JIS G4305 for cold-rolled stainless steel plates, sheets and strips. It is an improved version of the standard SUS430 grade, designed to offer better corrosion resistance, improved formability and enhanced surface quality. With a chromium content in the 16–18% range and optimized residual elements, SUS430J1 provides reliable performance in mild corrosive environments while remaining fully magnetic and cost-effective. The most common surface finishes are 2B and BA.
SHH STEEL supplies SUS430J1 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, 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 | SUS430J1 | Confirmed |
| Product Form | Cold-rolled Plate / Sheet / Coil | Available |
| Surface Finish | 2B, BA (main) | Available |
| Thickness Range | 0.3 mm – 3.0 mm | 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 – typical for SUS430J1):
| 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 |
Note: Composition is optimized compared with standard SUS430 to improve corrosion resistance and surface quality.
Mechanical Properties
Mechanical properties of JIS G4305 SUS430J1 (annealed condition):
| Property | Value |
|---|---|
| Yield Strength (0.2%) | ≥ 205 MPa |
| Tensile Strength | ≥ 420 MPa |
| Elongation | ≥ 22% |
| Hardness | ≤ 183 HB / ≤ 88 HRB |
Density: Approximately 7.70 g/cm³ Magnetic: Yes (ferritic)
Surface Finishes
| Finish | Description | Typical Applications |
|---|---|---|
| 2B | Cold-rolled, annealed, pickled, skin-passed – smooth matte finish | General fabrication, appliances |
| BA | Bright Annealed – high reflectivity | Decorative panels, kitchen equipment |
SHH STEEL mainly supplies 2B and BA finishes for SUS430J1.
Delivery Conditions
SHH STEEL supplies JIS G4305 SUS430J1 as Mill Direct Supply in cold-rolled annealed condition with 2B or BA finish.
Additional options available:
- Coil or cut-to-length sheets
- Protective film
- Third-party inspection (SGS, BV, TUV, etc.)
Key Characteristics
- Improved corrosion resistance compared with standard 430 in many applications
- Excellent formability
- Fully magnetic
- Good oxidation resistance
- Cost-effective alternative to austenitic grades for mild environments
- Attractive surface finish options (especially BA)
Equivalent Material Grades
| Grade | Standard | Notes |
|---|---|---|
| SUS430J1 | JIS G4305 | — |
| 430 | ASTM A240 | Closest American equivalent |
| 1.4016 / X6Cr17 | EN 10088-2 | European equivalent |
| 10Cr17 | GB/T 3280 | Chinese equivalent |
| UNS S43000 | — | Related Unified Numbering |
Applications
JIS G4305 SUS430J1 (430J1 BA/2B) is widely used in applications requiring good corrosion resistance, formability and attractive appearance. Typical applications include:
| Application Area | Typical Components / Uses (Keywords) |
|---|---|
| Kitchen Equipment | Sinks, range hoods, panels – 430J1 BA Kitchen |
| Home Appliances | Washing machine parts, refrigerator panels – 430J1 2B Appliances |
| Architectural & Decorative | Elevator panels, wall cladding – 430J1 BA Decorative |
| Automotive | Trim and decorative parts – 430J1 Automotive |
| Industrial Equipment | Covers, ducts, formed parts – 430J1 Industrial |
| General Fabrication | Stamped and formed components – 430J1 Fabrication |
Why Choose SHH STEEL
SHH STEEL provides SUS430J1 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 SUS430J1 Steel Plate.
Customers benefit from reliable supply, short lead times and cost-effective solutions for improved 430-type ferritic stainless steel projects. Our professional export team provides technical support on material selection, surface finishes and processing.
FAQ
- What is the difference between SUS430 and SUS430J1?SUS430J1 is an improved version of SUS430 with optimized composition for better corrosion resistance, formability and surface quality in many applications.
- What is the difference between 2B and BA finish?2B is a smooth matte finish suitable for general fabrication. BA is bright annealed with higher reflectivity for decorative and kitchen applications.
- What is the density of SUS430J1?Approximately 7.70 g/cm³.
Conclusion
JIS G4305 SUS430J1 Steel Plate (430J1 BA/2B Stainless Steel) from SHH STEEL is an improved ferritic stainless steel offering better performance than standard 430, 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 SUS430J1 stainless steel requirements.
Contact SHH STEEL today for stock availability, pricing and technical support. JIS G4305 SUS430J1 Steel Plate, SUS430J1, 430J1 BA, 430J1 2B, 430J1 stainless steel plate, SUS430J1 supplier
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