10 Spline Halfshaft Material

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discomania said:
How long is a piece of string, if I was making a half shaft I may use better stronger steel than the manufacturers would use as they need to be sensible and save money!

Assuming it's a chomium molybdenum steel, then it could have a tensile strength of somewhere between about 75000 and 85000psi, it will have a hardness probably in the C Rockwell hardness scale.
Click to expand...

No idea on Rockwell but it'll be 248-302 on Brinell for EN19 CrMo
 
Dr_evil said:
No idea on Rockwell but it'll be 248-302 on Brinell for EN19 CrMo
Click to expand...

That's about C32 in Rockwell or B107 which is a tensile strength of about 150000PSI so they are making them out a pretty good material. Car drive shafts often only about 80,000.

So Ashcroft HD shafts have a greater tensile strength by about 36000psi.
 
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