Oil Tempered Springs
Oil tempered wire, also known as ASTM A229, has excellent durability, fatigue, and resistance to relaxation. Oil-tempered wire is both cheaper and thicker, as well as has good shock resistance.
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Technical Specification | Oil Tempered |
---|---|
Nominal Composition |
C: 0.55 - 0.85 Mn: 0.30 – 1.2 Fe: 98.29 |
Density |
0.284 lb./in3 |
Modulus of Elasticity (E) |
29 x 103 ksi |
Modulus of Rigidity (G) |
11.6 x 103 ksi |
Electrical Resistivity |
170 µΩ.cm |
Thermal Conductivity |
361 Btu/(hr/ft2/in/°F) |
Min Size |
0.020 in (0.500 mm) |
Max Temp |
150oC (300oF) |
Uses |
It can be used for applications that are exposed to constant loads such as garage door springs |