logo.gif (5139 bytes) Mechanical Alloys Specifications

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When selecting wire for mechanical applications there are four classifications from which to choose a specific material or alloy. They are: nickel based lockwires, carbon steels, stainless steels and superalloys. A three-part evaluation procedure is recommended: 1) initial screening based on temperature and corrosion requirements; 2) analysis of physical properties; and 3) final screening on the basis of specific properties, material, and forming costs.

Material Composition ( % ) Nom. Tensile Strength (psi) size range: .002"-.032"
C Mn Si P S Cr Ni Fe Others
(max) (max) (max) (max) (max)         Annealed Full Hard (spring)
#302 Stainless Steel .15 2 1 .045 .03 17-19 8-10 Bal. - 105,000 to 145,000 300,000 to 360,000
#304 Stainless Steel .08 2 1 .045 .03 18-20 8-12 Bal. - 105,000 to 145,000 300,000 to 360,000
#316 Stainless Steel .08 2 1 .045 .03 16-18 10-14 Bal. Mo 2-3 95,000 to 130,000 245,000 to 275,000
#321 Stainless Steel .08 2 1 .045 .03 17-19 9-12 Bal. Ti 5xC min. 110,000 to 150,000 225,000 to 275,000
17-7 PH .09 1 1 .04 .03 16-18 6.5-7.75 Bal. Al .75-1.5 - 260,000 to 295,000
Inconel* 600 .15 1 .5 - .015 14-17 72 min. 6-10 Cu .5 max 90,000 to 130,000 180,000 to 230,000
Inconel* X-750 .08 1.2 .5 - .01 14-17 70 min. 5-9 Cu .5 max         130,000 to 160,000 220,000 to 250,000
Al . 4 - 1 
Ti 2.25-2.75
Cb .7 - 1.2
Monel* 400 .3 2 .5 - .024 - 63-70 2.5 max Cu Bal. 70,000 to 95,000 145,000 to 180,000
Music Spring 1 .6 .3 .025 .03 - - Bal. - - 330,000 to 480,000

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