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SAE 950 Steel Spec

SAE 950 Steel Spec

SAE 950 Steel Spec

(OP)
Could somebody tell me the n & r values and UTS for, SAE 950

RE: SAE 950 Steel Spec

HUH? SAE950 is not a steel specification. 950 is a HSLA Strength grade, however usually n & r values are not specified for HSLA steels.

RE: SAE 950 Steel Spec

950 is the old designation according to SAE J1392.  The new designation is 340 according to SAE J2340.  The UTS is specified to be a minimum of 410 MPa. n-value is not a requirement of this standard, and its value will change with strain.  The following presentation from US Steel shows some data for HSLA 340 steel:

http://www.autosteel.org/AM/Template.cfm?Section=Home&TEMPLATE=/CM/ContentDisplay.cfm&CONTENTFILEID=971

The r-value will depend on whether it is cold-rolled or hot-rolled, but you can use r ~ 1 for an estimate.

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