1045 — ASTM A108
CTI Color-Red
This medium carbon steel is used for heat treating (quenching and tempering). Although it has only a fair response to conventional quenching, it is widely used where requirements are not too stringent. It is also used extensively in induction hardening applications. This is not normally considered a screw machine steel and is only fair for brazing and welding. However, it can be forged satisfactorily and is the most common shafting steel in the medium carbon range.
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Chemistry
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Carbon |
0.43/0.50
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Manganese |
0.60/0.90
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Phosphorus (Max.) |
0.04
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Sulfur |
0.05
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Typical Mechanical Properties
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Tensile Strength |
91,000 psi
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Yield Strength |
77,000 psi
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Elongation in 2” |
12%
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Reduction of Area |
35%
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Brinell Hardness |
179
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Machinability
57% of 1212
57% of 1212
Applications
Medium strength parts particularly where harden ability for wear or higher strength is needed. Shafts for hydraulic and pneumatic cylinders.
Medium strength parts particularly where harden ability for wear or higher strength is needed. Shafts for hydraulic and pneumatic cylinders.