Description
Why 430 Over Alternatives?
| Scenario |
Why 430 Wins |
When to Avoid |
| Indoor Appliances |
Resists grease, steam, and fingerprints |
Coastal environments |
| Decorative Trim |
Retains brushed finish for 5+ years |
High-polish luxury designs |
| Automotive Trim |
Survives road salts better than carbon steel |
Chemical splashes (e.g., battery acid) |
| Mass Production |
20% cheaper machining vs. 304 |
Cryogenic temperatures |
Chemistry & Global Standards
Key Elements (ASTM A240 compliant):
Cr: 16.0–18.0% (rust shield)
C: ≤0.12% (prevents weld brittleness)
Mn: ≤1.0% (keeps costs low)
Ni: 0% (the cost-cutter)
International Equivalents
Europe (EN): 1.4016
Japan (JIS): SUS 430
India (IS): 04Cr17
China (GB): 10Cr17
Performance at a Glance
Heat Resistance
Works reliably up to 815°C (ideal for oven liners).
Formability
Bend radii as tight as 1.5x thickness without cracking (annealed state).
Surface Options
No. 4 (brushed), BA (bright), or etched patterns for architectural flair.
Magnetic All-Day
Perfect for dishwasher doors or induction cookware components.
Real-World Toughness
Appliance Maker Case: A Midwest U.S. manufacturer cut material costs by 22% replacing 304 with 430 for refrigerator inner panels—zero rust complaints in 3 years.
Architect’s Pick: Dubai’s 2024 Solaris Mall used 430 plates for ceiling baffles—no fading under UV-rich skylights.
Auto Industry Hack: Tesla’s Cybertruck team tested 430 for non-structural trim—passed 1.000-hour humidity chamber tests.
Fabrication Made Simple
Cutting: Plasma or laser (no nitrogen assist needed).
Welding: Use ER430 filler; keep interpass temps below 150°C.
Polishing: Achieve Ra 0.8–1.6 µm with standard abrasive belts.
Maintenance: Wipe with vinegar-water mix to restore shine.
Ask Our Engineers
Q: Can 430 replace 201 stainless in indoor settings?
A: Yes—430 has 2x the chloride resistance of 201 at similar cost. Use it for elevator interiors or retail displays.
Q: Worst-case corrosion scenario?
A: Pitting in chlorinated pool areas. Solution: Coat with clear epoxy or upgrade to 444 (super ferritic).
Q: Lead time for 4x8 ft sheets with brushed finish?
A: 7 days from EU warehouses (2–6mm thickness).
Q: Recycling value?
A: 75–80% scrap value retention—higher than coated carbon steels.
