JIS G4305 SUS429 Steel Plate | 429 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 SUS429 Steel Plate (also known as 429 stainless steel).
SUS429 is a ferritic stainless steel under the Japanese standard JIS G4305 for cold-rolled stainless steel plates, sheets and strips. It contains 14–16% chromium, providing better atmospheric and oxidation resistance than lower-chromium grades such as 410L, while remaining fully magnetic and offering good formability. It is a cost-effective alternative to higher-alloyed stainless steels for many indoor and mild outdoor applications. The most common surface finishes are 2B and BA.
SHH STEEL supplies SUS429 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 | SUS429 | 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):
| Element | Content (%) |
|---|---|
| Carbon (C) | ≤ 0.12 |
| Silicon (Si) | ≤ 1.00 |
| Manganese (Mn) | ≤ 1.00 |
| Phosphorus (P) | ≤ 0.040 |
| Sulfur (S) | ≤ 0.030 |
| Chromium (Cr) | 14.00 – 16.00 |
| Nickel (Ni) | ≤ 0.60 |
Note: The higher chromium content compared with 410L improves general corrosion and oxidation resistance.
Mechanical Properties
Mechanical properties of JIS G4305 SUS429 (annealed condition):
| Property | Value |
|---|---|
| Yield Strength (0.2%) | ≥ 205 MPa |
| Tensile Strength | ≥ 450 MPa |
| Elongation | ≥ 22% |
| Hardness | ≤ 183 HB |
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, industrial parts |
| BA | Bright Annealed – high reflectivity | Decorative and clean applications |
SHH STEEL mainly supplies 2B and BA finishes for SUS429.
Delivery Conditions
SHH STEEL supplies JIS G4305 SUS429 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
- Better corrosion and oxidation resistance than 410L
- Fully magnetic
- Good formability and fabricability
- Cost-effective ferritic stainless steel
- Suitable for mild atmospheric and indoor environments
- Not recommended for highly chloride-containing or strongly reducing conditions
Equivalent Material Grades
| Grade | Standard | Notes |
|---|---|---|
| SUS429 | JIS G4305 | — |
| 429 | ASTM A240 | American equivalent |
| 1.4016 (approx.) | EN 10088-2 | Closest European grade |
| 14Cr17 / similar | GB/T 3280 | Chinese related grades |
| UNS S42900 | — | Unified Numbering System |
Applications
JIS G4305 SUS429 (429 BA/2B) is used in applications requiring better corrosion resistance than standard 12% Cr ferritic grades. Typical applications include:
| Application Area | Typical Components / Uses (Keywords) |
|---|---|
| Kitchen & Appliance | Panels, formed parts – 429 BA Kitchen |
| Automotive | Exhaust components, trim – 429 Automotive |
| Architectural & Decorative | Interior panels, cladding – 429 BA Decorative |
| Industrial Equipment | Ducts, containers, covers – 429 Industrial |
| General Fabrication | Stamped and formed parts – 429 Fabrication |
| Heat-Resistant Applications | Moderate temperature parts – 429 Heat Resistant |
Why Choose SHH STEEL
SHH STEEL provides SUS429 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 SUS429 Steel Plate.
Customers benefit from reliable supply, short lead times and cost-effective solutions for ferritic stainless steel projects. Our professional export team provides technical support on material selection, surface finishes and processing.
FAQ
- What is the main difference between SUS429 and SUS430?SUS429 has slightly lower chromium (14–16%) compared with SUS430 (16–18%). SUS430 generally offers better corrosion resistance, while SUS429 is still a good cost-effective ferritic option.
- Is SUS429 magnetic?Yes, it is a ferritic stainless steel and is fully magnetic.
- What is the difference between 2B and BA finish?2B is a smooth matte finish for general use. BA is bright annealed with higher reflectivity for decorative or aesthetic applications.
Conclusion
JIS G4305 SUS429 Steel Plate (429 BA/2B Stainless Steel) from SHH STEEL is a ferritic stainless steel offering improved corrosion resistance over lower-chromium grades, good formability and cost efficiency. As Mill Direct Supply, we provide competitive pricing, consistent quality and full technical support. Trust SHH STEEL for your SUS429 stainless steel requirements.
Contact SHH STEEL today for stock availability, pricing and technical support. JIS G4305 SUS429 Steel Plate, SUS429, 429 BA, 429 2B, 429 stainless steel plate, SUS429 supplier
Quality Steel Needed? Inquire for Offers
Related Products
