Spring Materials

High Carbon Spring Wire
MATERIAL NOMINAL ANALYSISMAXIMUM OPERATING TEMPERATURE ROCKWELL HARDNESSMETHOD OF MANUFACTURE CHIEF USES SPECIAL PURPOSES
Music Wire
ASTM A 228
C 0.70-1.00%
Mn 0.20-0.60%
250 °F
121 °C
C41-60Cold drawn high and uniform tensile. High quality springs and wire forms. Suitable for cyclic applications.
Hard Drawn
ASTM A 227
C 0.45-0.85%
Mn 0.60-1.30%
250 °F
121 °C
C31-52Cold drawn. Average stress applications. Lower cost springs and wire forms.
High Tensile
Hard Drawn
ASTM A 679
C 0.65-1.00%
Mn 0.20-1.30%
250 °F
121 °C
C41-60Cold drawn. Higher quality springs and wire forms.
Oil Tempered
ASTM A 229
C 0.55-0.85%
Mn 0.60-1.20%
250 °F
121 °C
C42-55Cold drawn and heat treated before fabrication. General purpose spring wire.
Carbon Valve
ASTM A 230
C 0.60-0.75%
Mn 0.60-0.90%
250 °F
121 °C
C45-49Cold drawn and heat treated before fabrication. Good surface condition and uniform tensile. Suitable for cyclic applications.

 

Alloy Steel Wire
MATERIAL NOMINAL ANALYSISMAXIMUM OPERATING TEMPERATURE ROCKWELL HARDNESSMETHOD OF MANUFACTURE CHIEF USES SPECIAL PURPOSES
Chrome Vanadium
ASTM A 231
C 0.48-0.53%
Mn 0.80-1.10%
V 0.15 Min%
425 °F
218.5 °C
C41-55Cold drawn and heat treated before fabrication. Used for shock loads and moderately elevated temperature.
Chrome Silicon
ASTM A 401
C 0.51-0.59%
Cr 0.60-0.80%
Si 1.20-1.60%
475 °F
246 °C
C48-55Cold drawn and heat treated before fabrication. Used for shock loads and moderately elevated temperature.

 

Stainless Steel Wire
MATERIAL NOMINAL ANALYSISMAXIMUM OPERATING TEMPERATURE ROCKWELL HARDNESSMETHOD OF MANUFACTURE CHIEF USES SPECIAL PURPOSES
AISI 302/304
ASTM A 313
Cr 17.0-19.0%
Ni 8.0-10.0%
550 °F
288 °C
C35-45Cold drawn general purpose corrosion and heat resistant. Magnetic in spring temper.
AISI 316
ASTM A 313
Cr 16.0-18.0%
Ni 10.0-14.0%
Mo 2.0-3.0%
550 °F
288 °C
C35-45Cold drawn. Heat resistant and better corrosion resistance than 302. Magnetic in spring temper.
17-7 PH
ASTM A 313 (631)
Cr 16.0-18.0%
Ni 6.5-7.5%
Al 0.75-1.5%
650 °F
343 °C
C38-57Cold drawn and precipitation hardened after fabrication. High strength and general purpose corrosion resistance. Slightly magnetic in spring temper.

 

Non-Ferrous Alloy Wire
MATERIAL NOMINAL ANALYSISMAXIMUM OPERATING TEMPERATURE ROCKWELL HARDNESSMETHOD OF MANUFACTURE CHIEF USES SPECIAL PURPOSES
Phosphor Bronze
Grade A
ASTM B 159
Cu 94.0-96.0%
Sn 4.0-6.0%
200 °F
93.3 °C
B 98-104Cold drawn. Good corrosion resistance and electrical conductivity.
Beryllium Copper
ASTM B 197
Cu 98%
Be 2%
400 °F
204 °C
C35-42Cold drawn and may be mill hardened before fabrication. Good corrosion resistance and electrical conductivity. High physicals.