The other test that is very interesting is that Winchester made two identical frames both heat treated, and then one was case hardened and the other was blued. Then they were tested for Tensile strength, elastic limit, elongation and reduction of area. The results are below and perhaps someone can explain to me what these results mean? Just because the numbers are higher are their any real positives or negatives.
Case hardened frame:
Tensile strength 94,200 PSI
Elastic limit 85,00 PSI
Elongation 2.0 percent
Reduction 0.0 percent
Blued frame:
Tensile strength 174,600 PSI
Elastic limit 160,950 PSI
Elongation 12.0 percent
Reduction of area 63.7 percent
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