Stainless Steel Wire

A designer and manufacturer of precision springs since 1939, Diamond Wire Spring uses AISI 302/304, AISI 316, 316L and 17-7 PH stainless steels for compression, extension, torsion springs, and wire forms.

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Material	AISI 302/304	AISI 316	17-7 PH
ASTM	A 313	A 313	A 313 (631)
Nominal Analysis	Cr -- 17.0 - 19.0%	Cr -- 16.0 - 18.0%	Cr -- 16.0 - 18.0%
	Ni -- 8.0 - 10.0%	Ni -- 10.0 - 14.0%	Ni -- 6.5 - 7.5%
		Mo -- 2.0 - 3.0%	Al -- .75 - 1.5%
Minimum Tensile Strength	125-325	110-245	Cond CH
			235-335
Modulus of Elasticity E	28	28	29.5
psi x 103
Design Stress % Minimum	30-40	40	45
Tensile
Modulus in Torsion	10	10	11
G psi x 106
Maximum Temp. F	550	550	650
Maximum Temp. C	288	288	343
Rockwell Hardness	C35-45	C35-45	C38-57
Method of Manufacture	Cold drawn, general purpose, corrosion and heat resistant. Magnetic in spring temper.	Cold drawn. Heat resistant and better corrosion resistance than 302. Magnetic in spring temper. Slightly magnetic in spring temper.	Cold drawn & precipitation hardened after fabrication. High strength and general purpose corrosion resistance

AISI 302/304

AISI 302/304 stainless steels are used in various industrial and consumer applications due to their excellent corrosion resistance, high flexibility, and good strength properties.

AISI 316

AISI 316 stainless steel is an austenitic stainless steel alloy that is highly corrosion resistant due to the addition of molybdenum (Mo) in its composition.

17-7 PH

17-7 PH stainless steel, also known as 17-7 precipitation-hardening stainless steel, is a semi-austenitic stainless steel alloy notable for its combination of high strength, excellent corrosion resistance, and good formability.