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1144 Stressproof

 

 

 

 

 

 

 






1144 also sometimes referred to as Stressproof ®, is a carbon-manganese grade which is severely cold worked to produce high tensile properties. The bars are specially treated to relieve the stresses set up by the cold drawing, thus minimizing the tendency to warp after machining which is common in ordina. 1144 cold roll bars have high strength hardness, without the need of heat treatment. 1144 has the combination of free machinability, minimum warp, high strength, and a good wear resistance not found in ordinary metals. Stressproof ® is a registered trademark of the LaSalle Steel Corporation.

 

1144 (Stressproof ®)

 

Minimum Properties

Ultimate Tensile Strength, psi

115,000

 

Yield Strength, psi

100,000

 

Elongation

8.0%

 

Rockwell Hardness

B95 / C17

 

 

Chemistry

Iron (Fe)

97.54 - 98.01%

 

Carbon (C)

0.4 - 0.44%

 

Manganese (Mn)

1.35 - 1.65%

 

Phosphorus (P)

0.04% max

 

Sulfur (S)

0.24 - 0.33%

 

 

The above values are average and may be considered as representative of 1144 cold rolled steel.

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