309 Stainless Steel Sheet: Heat-Resistant, High-Temperature & Supplier Guide

Why Choose 309 stainless steel sheet?

309 stainless steel sheet is an austenitic chromium-nickel grade engineered for high-temperature service, offering excellent oxidation and scaling resistance up to about 1000 deg C, widely used in furnace components, heat exchangers, kiln liners, annealing covers and exhaust systems where 304 would not survive. As a direct mill-source supplier, Huaxiao Stainless stocks 100,000 tons of stainless material and ships in as little as 15 days, all with ISO 9001 / IATF 16949 (TS16949) certification and full mill test reports. Browse our 309 stainless steel sheet product page or send an inquiry for a same-day quotation.

Specifications, Sizes & Surface Finish

We supply 309 stainless steel sheet to ASTM, AISI, EN and JIS standards. Common grades include 309 (1.4828, UNS S30908). Standard dimensions cover the full commercial range, and we offer surface finishes such as 2B, BA, No.4, HL and mirror polish. Custom sizes, tolerances and edge treatments are available on request for project-specific requirements.

Price Factors You Should Know

The 309 stainless steel sheet price per kg is driven by grade, thickness, surface finish, order volume and raw-material nickel indices. Buying directly from a mill-source supplier removes distributor markups. For a current, volume-based quote, contact our sales team with your specification and destination port.

Typical Applications

309 stainless steel sheet is widely used across industries that demand corrosion resistance and a clean appearance. Typical uses include structural and decorative components, processing equipment, and architectural fittings where both performance and finish matter.

How to Choose the Right Supplier

Look for a supplier with verifiable certifications (ISO 9001 / IATF 16949), transparent mill test reports, stable stock and proven export experience. Huaxiao Stainless combines 100,000 tons of inventory with 15-day delivery and global shipping, making us a reliable 309 stainless steel sheet supplier for ongoing and one-off projects alike.

Frequently Asked Questions About 309 stainless steel sheet