The Steel Supply Company

Buyers Guide

Bar Material Specification 1045

Produced Per ASTM A-108

Chemical Composition Limits
Carbon 0.43-0.50    
Manganese 0.60-0.90    
Phosphorous .040 Max.    
Sulfur .050 Max.    
Mechanical Properties of 1045 Cold Drawn Micro Alloy* Hot Rolled
Tensile Strength, PSI 100,000 95,000 90,000
Tensile Strength, Mpa 690 655 620
Yield Strength, PSI 75,000 75,000 40,000
Yield Strength, Mpa 520 520 275
Elongation % 10 10 15
Reduction of Area % 25 15 35
Brinell Hardness 195 185 190

*Micro Alloy 1045 uses Vanadium as a grain refiner. Mpa is an abbreviation for Megapascals.

1045 has a very good heat treatment response. It is the most commonly used, and most economical, grade of shafting in use for hydraulic cylinder components, blower shafts, and mandrels. Items of 1045 are stocked from 1/4" diameter through and including 14" diameter, and in metric diameters from 10mm through and including 250mm.

 

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