347 Stainless Steel
UNS S34700
347 Stainless fasteners are used in corrosive environments where temperatures may cycle to over 800º F (425º C). Oil refinery applications are common. Other uses for 347 Stainless are in heat sensors and thermocouples.
321 Stainless (UNS S32100/ASTM A193 B8T) is a very close relative. While 347 Stainless is stabilized by the addition of columbium and tantalum to resist intergranular corrosion, 321 is stabilized by the addition of titanium.
347 Stainless Fasteners
- Lock Nuts
- Set Screws
- Dowel Pins
- Pipe Plugs
- Vented Screws
- 12-Pt Flange Screws
- Custom Fasteners
Specifications
- Bolts: ASTM A193, ASME SA193 B8C
- Nuts: ASTM A194 8C, ASME SB 194 8C
Material Properties
Technical Data Sheet
Industries & Applications
- Oil & Gas
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