Material properties of SK5

keyword: SK5

Question こんちゃん 2012/7/27(Fri) 12:00

Hello, I am trying to make a leaf spring after heat treatment using the material SK-5.
Could you provide me the following information:
Yield strength (yield point)
Tensile strength
Longitudinal elastic modulus (Young’s modulus)
Transverse elastic modulus
Poisson’s ratio
Density
Bending fatigue limit
Thank you in advance!

Answer Tokai Spring 2012/7/27(Fri) 15:24

Thank you for your inquiry, Kon-chan!

– SK5 Tensile strength after heat treating is about 1460 to 1700 N/mm2 and after molding (HRC40 to 50) is 1250 to 1760 N/mm2
– Longitudinal elastic modulus (Young’s modulus): 206000N/mm2
– Transverse elastic modulus: 78500N/mm2
– Poisson’s ratio: 0.30
– Density: 7.85g/cm3

Thanks again for your inquiry (^^)!