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Oil Tempered Chrome Vanadium Spring Wire for Commercial use

ASTM A231

Chromium vanadium is a popular alloy steel for springs that must withstand a large number of operating cycles. Chrome vanadium springs can be used at extremely high stresses in applications where they will also be subject to extreme shock and impact loading. 

Chemistry

Element Composition, %
Carbon 0.48 – 0.53
Manganese 0.70 – 0.90
Phosphorus, max 0.035
Sulfur, max 0.040
Silicon 0.15-0.35
Chromium 0.80 -1.10
Vanadium, min 0.15

Tensile Requirements

Diameter (Inch) Tensile Strength, KSI Min Tensile Strength, KSI Max Reduction of Area, min, %
0.020 300 325 n/a
0.032 290 315 n/a
0.041 280 305 n/a
0.054 270 295 n/a
0.062 265 290 n/a
0.080 255 275 n/a
0.105 245 265 45
0.135 235 255 45
0.162 225 245 40
0.192 220 240 40
0.244 210 230 40
0.283 205 225 40
0.312 203 223 40
0.375 200 220 40
0.438 195 215 40
0.500 190 210 40

Tensile strength values for intermediate diameters may be interpolated.

Permissible Variations in Wire Diameter

Diameter (Inch) Permissible Plus and Minus Permissible Out of Round
0.020 to 0.028, incl. 0.0008 0.0008
Over 0.028 to 0.075, incl. 0.001 0.001
Over 0.075 to 0.375, incl. 0.002 0.002
Over 0.375 to 0.500, incl. 0.003 0.003

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