MY ACCOUNT ONLINE CHAT CLEARANCE Alloys Forms Processing Quality Approvals Technical Resources 304 / 304H Dual certified 304/304H is used as a material of construction up to 1500°F. Slight scaling begins at about 1200°F. This is the 0.04% minimum carbon version of type 304 stainless. It has general corrosion resistance similar to the low carbon 304/304L. However, it is subject to carbide precipitation in the heat affected zone (HAZ) of welds. Weldments may be sensitive to HAZ intergranular corrosion in oxidizing acid environments, and to polythionic acid stress corrosion cracking. The carbide precipitation is not harmful to high temperature mechanical properties. 304/304H is welded using the 22Cr 11Ni filler wire (ER308), or covered electrodes (E308). Post-weld heat treatment is not necessary for most high temperature service. Inventory 304 / 304H Plate, 304 / 304H Weld Wire Common Trade Names 304H Stainless Specifications AMS 5513, ASME SA 240, ASTM A 240, ASTM A 959, W. Nr./EN 1.4948 Features Elevated temperature service to 1500°F Corrosion resistance similar to 304/304L Applications Pressure Vessels Petrochemical Equipment Firearms production Related Literature Data Sheet Firearms Line Card OUR COMPANY About Us FAQs Markets Careers & Internships Packaging Safety Contact LOCATIONS North America Asia Europe TOOLS & MEDIA E-Service Programs Videos Weld Wire Selection Pipe Size Chart Machining Information Current Promotions RA Mobile FOLLOW US INSTAGRAM LINKEDIN FACEBOOK YOUTUBE PAYMENT METHOD BY United States P.O. Terms Terms & Conditions Privacy Policy © Rolled Alloys, Inc. All Rights Reserved