Suhm Spring Works - Materials Properties

                                                                                               

Material

Material Properties

Maximum Working Temp.

 Ultimate Tensile Range (ksi min)

Modulus of Elasticity, psi 106

Approx. Design % of Ultimate Tensile (torsional)

Common Sizes (inches)

Alloy 20 Spring Tempered Wire

 ASTM B473

UNS N08020

 Excellent mechanical properties and easily fabricated.  Moderate to good corrosion resistance.  Used extensively in petrochemical and refining applications. - 200/125

(E) 29

(G) 10.9

 45% .025" to .362"

 

 SIZE CHART

Wire Dia.,In.

 

Wire

Dia.,In.

 

Wire

Dia.,In.

 

Wire

Dia.,In.

 

Wire

Dia.,In.

 

Wire

Dia.,In.

 

Wire

Dia.,In.

 

Wire

Dia.,In.

.025

.037

.050

.062

.077

.092

.113

.156

.026

.038

.051

.064

.078

.093

.115

.162

.027

.039

.052

.065

.080

.094

.118

 .187

.028

.040

.053

.067

.082

.095

.120

 .207

.029

.041

.054

.068

.083

.097

.125

 .234

.030

.042

.055

.069

.084

.098

.128

 .235

.031

.043

.056

.070

.085

.099

.129

 .262

.032

.044

.057

.071

.086

.100

.135

 .362

.033

.045

.058

.072

.088

.102

.138

  

.034

.046

.059

.074

.089

.105

.140

 

.035

.047

.060

.075

.090

.109

.142

  

.036

 .049

.061

.076

.091

.112

.148

  

 

 TENSILE STRENGTH CHART

Diameter, in.

Diameter, mm

Tensile Strength, ksi

minimum

maximum

Over 0.010 to 0.030

Over 0.254 to 0.762

200

230

Over 0.030 to 0.060

Over 0.762 to 1.52

195

225

Over 0.060 to 0.075

Over 1.52 to 1.90

190

220

Over 0.075 to 0.100

Over 1.90 to 2.54

185

215

Over 0.100 to 0.125

Over 2.54 to 3.18

180

210

Over 0.125 to 0.140

Over 3.18 to 3.56

170

200

Over 0.140 to 0.187

Over 3.56 to 4.75

160

190

Over 0.187 to 0.250

Over 4.75 to 6.35

150

180

Over 0.250 to 0.312

Over 6.35 to 7.92

135

165

Over 0.312 to 0.375

Over 7.92 to 9.52

125

155

 

These data are provided as a reference guide only and are not intended for design purposes.  Strength values and sizes are subject to change.  Please check with a Suhm Spring representative for confirmation.

 

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