ASTM A240 347 SS Plate

Type 347 is stabilized with columbium; it is preferable for aqueous and low-temperature environments due to its good resistance to intergranular attack. Both 347 and 321 offer good resistance to polythionic acid stress corrosion cracking, encountered in oil refineries.

The alloy can be welded without loss of corrosion resistance due to carbide precipitation and the steel can be used in the as-welded condition.

Physical properties of 347 grade stainless steel in the annealed condition

Properties	Metric	Imperial
Density	7.7 – 8.03 g/cm3	0.278 – 0.290 lb/in³

ASTM A240 347 SS plate Welding

• Submerged Arc Welding (SAW)

• MAG-Welding Solid Wire

• TIG-Welding

• Arc Welding (E)

• Laser Beam Welding

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