Ferritic stainless
430 stainless steel
Ferritic grade with 16–18% chromium and no nickel — the cost-effective choice for indoor appliances, kitchen equipment and decorative trim where chlorides are absent.
16–18%Chromium
0.3–3 mmCold rolled
≈ 17PREN
Where 430 is the right choice
- Indoor appliance panels— washing machine drums, oven fronts, microwave cavities: no chlorides, and it takes a good 2B or BA finish.
- Kitchen equipment and sinks— where 304 is not required by code and cost matters.
- Decorative trim— elevator interiors, furniture edging, indoor cladding.
Where it is not
- Outdoor or coastal— no molybdenum and no nickel, so pitting starts quickly where salt deposits form.
- Welded structures under load— ferritic grades lose toughness in the heat-affected zone and are prone to grain growth. Use 304/316L instead.
- Deep drawing with severe deformation— formability is well below 304; ears and cracking appear.
- Low temperature— the ductile-to-brittle transition limits use below about −20 °C.
430 is magnetic and cannot be hardened by heat treatment. If your drawing calls for "non-magnetic", choose an austenitic grade — 430 will fail the check.
Available specification
| Form | Thickness | Width | Finish | Standard |
|---|---|---|---|---|
| Cold rolled coil | 0.3–3 mm | ≤ 1500 mm | 2B / BA | ASTM A240 / EN 10088-2 |
| Cold rolled sheet | 0.3–3 mm | ≤ 1500 mm | 2B / BA / HL | ASTM A240 / EN 10088-2 |
| Circles | 0.5–3 mm | Ø160–600 mm | 2B | ASTM A240 |
Need 430 or a grade comparison?
Send the application and service condition — we will confirm whether 430 is sufficient or 304/316L is required.