Test Date: 09/25/2008
Lab: Illinois (USA)
Part: Sprint Car Front Axle (2 1/2" x .095)
600 Mini Sprint Front Axle (1 1/2" x .095)
Test Type: Chemical Composition / Hardness / Strength
Test Procedure: ASTM E415, E8 and E18.  A2LA Certified Testing.
Chemical tests to determine composition.
Rockwell Hardness test to determine hardness.
Tensile and Yield strength.
 

Chassis Tubing

 
 
Test/Sample ID

2 1/2" X 0.095

1 1/2" X 0.095

Carbon 0.29% 0.28%
Manganese 0.57 0.55
Sulfur 0.005 0.006
Silicon 0.23 0.22
Chromium 0.84 0.83
Phosphorus 0.008 0.010
Molybdenum 0.16 0.16
Copper 0.08 0.09
Nickel <0.05 <0.05
Rockwell Hardness HRB 98 HRB 97/98
Tensile Strength ksi 121.1 108.7
Yield Strength .2% offset ksi 118.9 106.6
Percent Elongation in 2.0" 8.7 9.1