Alloy 321 / 321H have excellent weldability by all conventional fusion technique, both with and without filler metals. AS 1554.6 pre-qualifies welding of 321 and 347 with Grade 347 rods or electrodes; high silicon version of 347 is also pre-qualified for welding of 321.
Applications
Aircraft piston engine manifolds and exhaust stacks
Environment
Safety
CSR