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1045 is a medium carbon steel is used when greater strength and hardness is desired than in the "as rolled" condition.
Extreme size accuracy, straightness and concentricity combine to minimize wear in high speed applications. Turned, ground and polished bars can be machined unsymmetrically with minimum distortion.
Applications
Used in gears, shafts, axles, bolts, studs, and machine parts.
Heat Treatment
Suitable for flame and induction hardening.
Forging
Can be hammer forged and responds to heat treatment.
Physical Data
Density (lb / cu. in.)
0.283
Mechanical Data
Form
Round Bar
Condition
Cold Drawn
Temper
68
Tensile Strength
91
Yield Strength
77
Elongation
12
Reduction of Area
35
Rockwell
C15
Brinnell
179
Form
Round Bar
Condition
Hot Rolled
Temper
68
Tensile Strength
82
Yield Strength
45
Elongation
16
Reduction of Area
40
Rockwell
C16
Brinnell
163
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