Grade 347 stainless is resistant to intergranular corrosion.
Next Generation Metals can supply this in plate, round bar, coil and sheet.
Specifications:
UNS S34700, UNS S34709, AMS 5512, AMS 5646, AMS 5680, ASME SA-240, ASTM A-193, ASTM A-240, ASTM A-269, ASTM A-479, ASTM A-262, QQ-S-763
Applications:
Oil refineries, hanger rods, fired heat tubes, power generation industry, high temperature gaskets, expansion joints, rocket engine parts, chemical production equipment.