Stainless Steel 321/347 Products

321 Stainless Steel

All common ways to weld, like submerged arc, work well with 321 stainless. AWS ER347 bare wire and E347 covered electrodes are good weld fillers. 321 stainless steel is easy to work with, just like 304 stainless steel. Compared to AISI B112, it can be worked on by machines 45 percent of the time.

Inventory

321 Flanges, 321 Rod Bar, 321 Hex Bar, 321 Square Bar, 321 Seamless Pipes, 321 Welded Pipes, 321 Pipe Fittings, 321 Plates / Sheets, 321 Welded Tubes, 321 Seamless Tubes, 321 Channels, 321 H Beam, 321 I Beam, 321 Components.

Common Trade Names

321, 321 Stainless, Alloy 321

Features

oxidation-resistant up to 1600°F
stabilized against weld heat-affected zone (HAZ) intergranular corrosion
Avoids polythionic acid stress corrosion cracking

Applications

Manifolds for airplane piston engines
Expansion joints
The making of guns
Heat-based oxidizers
Refinery equipment
Chemical equipment that can handle high temperatures

347 Stainless Steel

The grain size and carbon content of many products can meet both the 347S and 347H requirements. AWS ER347 bare wire and E347 covered electrodes are good weld fillers.

Inventory

347 Flanges, 347 Rod Bar, 347 Hex Bar, 347 Square Bar, 347 Seamless Pipes, 347 Welded Pipes, 347 Pipe Fittings, 347 Plates / Sheets, 347 Welded Tubes, 347 Seamless Tubes, 347 Channels, 347 H Beam, 347 I Beam, 347 Components.

Common Trade Names

347H, 347 Stainless.

Features

Good resistance to creep up to 1500°F
When used in places where the temperature is between 800°F and 1500°F, it stays resistant to corrosion.
Good resistance to corrosion between the grains in the welded state.

Applications

Oil Refineries
Units for fluid catalytic cracking (FCC)
The making of guns
Hanger rods
Recuperator tube sheets, shell, support
Fired heater tubes are used when temperatures are above 550°F and sulfidation resistance is needed.
Trays for the distributors and thermowell
Instruments inside and near reactors (good resistance to polythionic acid)