347, 1.4550, SUS347, Stainless Steel Spring Wire
ASTM A313 Type 347 UNS S34700 Stainless Steel Spring Wire
Type 347 is a stabilized austenitic stainless steel similar to type 304 with an addition of Columbium and Tantalum. The columbium serves to produce a stabilized type of stainless steel which is immune to chromium carbide precipitation.
Chemical composition
| C | Si | Mn | Ni | P | S | Cr | Other |
| max 0.08 | max 1 | max 2 | 9.00-13.0 | max 0.045 | max 0.030 | 17.0 - 19.0 | (Cb+Ta)10xC min |
Specification
ASTM A313M-2003 Stainless Spring Steel Wires
Supplying Size
Diameter 0.1 to 15 mm ; 0.005 to 0.6 inch
Delivery condition
Types 304 shall be cold drawn to produce the required mechanical properties.
Surface condition
Stainless steel spring wire is supplied with different types of finish such as bright, copper, lead, oxide, and other.
Tensile Strength
Application
Stainless steel wire is the raw material for screws, springs, metallic net, cable wire and hardware. It is widely used in filter, building and important for electronic parts, oil and fiber industry, kitchenware and hardware.
Mill test certificate
EN 10204/3.1 with all relevant data reg. chem. composition, mech. properties and results of testing.
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