Optimum Spring manufactures extension, torsion and compression springs with 17-7 PH Stainless Steel - Spring Wire Properties
New management: Andrea De Palma

Optimum Spring is under new management

Please direct all comunications to:

Andrea De Palma

Cell: +1 904-826-5412

email: aavadepa@gmail.com

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Marco Fortini can still be reached via LinkedIn LinkedIn Marco Fortini
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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.

convert to metric units
17-7 PH
ASTM A 313 (631)
Nominal Chemistry
Cr16.0-18.0%
Ni6.5-7.5%
Al0.75-1.5%
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
Shear Modulus
c GPa
11600 80.0
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.
Common Trade Names
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Phone: +1 (904) 567-5999 • Fax: +1 (904) 239-3231 • solutions@OptimumSpring.com

150 Hilden Rd • Suite 316 • Ponte Vedra, FL 32081-8405 U.S.A