17-7 PH Stainless Steel Spring Wire Properties
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17-7 PH Stainless Steel Spring Wire Properties

The use of stainless spring steels has increased considerably in recent years. Several new compositions are now available to withstand corrosion. All of these materials can be used for high temperatures up to 650°F.


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17-7 PH
ASTM A 313 (631)
Nominal Chemistry
Cr 16.0 - 18.0%
Ni 6.5 - 7.5%
Al 0.75 - 1.5%
Minimum Tensile Strength
psi x 103 		Cond CH
235-335
E - Modulus of Elasticity
psi x 106 		29.5
Design Stress % Minimum
Tensile		 45
G - Modulus in Torsion
psi x 106 		11.0
Maximum Operating Temperature
°F 		650
Rockwell Hardness C38-57
Density
lb/in3 		0.286
Method of Manufacture
Chief Uses
Special Properties		 Cold drawn & precipitation hardened after fabrication. High strength and general purpose corrosion resistance. Slightly magnetic in spring temper.
*Note: All material properties are provided for general reference purposes only.
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We manufacture extension, torsion and compression springs with 17-7 PH Stainless Steel