430 Stainless Steel Coil: Properties, Price & Where to Buy

430 stainless steel coil: A Practical Buying Guide

Looking for a reliable 430 stainless steel coil supplier? Huaxiao Stainless keeps 100,000 tons of inventory, ships in 15 days, and is certified to ISO/TS16949. Before you request a quote, here is what actually matters when specifying and sourcing 430 stainless steel coil.

Why Choose 430 Stainless Steel Coil

430 stainless steel coil is the pragmatic ferritic grade: 16-18% chromium, essentially no nickel. Removing nickel removes the single most volatile cost driver in stainless, which is why 430 typically lands 30-40% cheaper per kg than 304 while still delivering good atmospheric corrosion resistance and an attractive bright finish.

430 is also magnetic and has a lower coefficient of thermal expansion than austenitic grades, which makes it well behaved in appliance panels and trim where dimensional stability matters. The trade-off is reduced formability and lower resistance to chlorides, so it is not the grade for marine or aggressive chemical exposure.

Specifications, Sizes & Surface Finish

We stock 430 (UNS S43000) coil to ASTM A240 / A480 and JIS G4305. Thickness ranges from 0.3 mm to 3.0 mm, width from 500 mm to 1500 mm, in coil weights of 3-8 tons.

• Finish: 2B (most common), BA bright annealed, No.4 brushed, 8K mirror
• Temper: annealed / soft for deep forming, or 1/2 hard for panels
• Edge: mill edge or slit edge
• Coating: PVC film available to protect the finish in transit

Typical mechanical properties: tensile 450-600 MPa, yield 205 MPa minimum, elongation 22% minimum, hardness HRB 88 maximum.

430 Stainless Steel Coil Price Factors

The 430 stainless steel coil price per kg is set mainly by chromium and the ferro-chrome market rather than nickel, which makes 430 far more stable in price than 304 or 316. Beyond raw material, expect these adjustments:

• Thin gauge below 0.5 mm adds rolling passes and cost
• BA and 8K mirror finishes add polishing cost over standard 2B
• Narrow slit widths add a slitting charge
• Full-coil orders price better than cut-to-length sheets

If your part is currently made in 304 but never sees chlorides, switching to 430 is one of the fastest material cost reductions available. Ask us to quote both grades side by side.

Common Applications

430 coil dominates domestic appliance manufacture: dishwasher and oven liners, refrigerator side panels, range hoods, washing machine drums and microwave cavities. It is also used for automotive trim and exhaust cladding, kitchen equipment, indoor architectural panels, coin blanks and cookware bodies with a clad base.

How to Choose a Reliable Supplier

With ferritic grades the two failure modes are wrong chemistry and inconsistent finish. Confirm the chromium range on the mill certificate (16.0-18.0%) and insist on carbon below 0.12% to avoid ridging during forming. For visible parts, ask for a physical finish sample from the same coil batch, because 2B gloss varies between mills.

A credible 430 stainless steel coil supplier will send both the certificate and the sample before you commit. Huaxiao Stainless carries 100,000 tons in stock, ships in 15 days, and works to ISO/TS16949, which matters if your coil feeds an automotive or appliance production line.

Frequently Asked Questions About 430 stainless steel coil

Get a Quote for 430 stainless steel coil

430 stainless steel coil in stock: 100,000 tons available, 15-day delivery, certified to ISO/TS16949. Browse our 430 stainless steel coil product page or contact us for a quote to get a competitive price today.