631 Stainless Steel Spring Wire
ASTM A313 Type 631 UNS S17700 Stainless Steel Spring Wire
Type 631 Stainless steel from the group of age-hardened PH with the highest content of Chromium – 17% and Nickel – 7% in relation to PH of grades 15-5 and 17-4. It has excellent strength properties, high hardness and elasticity, good corrosion resistance and resistance to high temperatures and deformation.
Chemical composition
| C | Si | Mn | Ni | P | S | Cr | Al |
| max 0.09 | max 1 | max 1 | 6.50-7.80 | max 0.040 | max 0.030 | 16.0 - 18.0 | 0.75-1.50 |
Specification
ASTM A313M-2003 Stainless Spring Steel Wires
Supplying Size
Diameter 0.1 to 15 mm ; 0.005 to 0.6 inch
Delivery condition
Type 631 shall be furnished in the cold-drawn condition ready for fabrication. Following fabrication Type 631 shall be age or precipitation hardened to produce their maximum strength 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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