Test Date: 07/12/2007
Lab: Illinois (USA)
Part: Chassis Tube and Front Axle
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

1 1/4"

2 1/4"

Carbon 0.26% 0.28%
Manganese 0.55 0.55
Sulfur 0.005 0.011
Silicon 0.22 0.25
Chromium 0.88 0.92
Phosphorus 0.009 0.017
Molybdenum 0.15 0.17
Copper 0.08 0.13
Nickel <0.05 <0.05
Rockwell Hardness HRB(s) HRB 94 HRB 96/97
Tensile Strength ksi 96.6 97.5
Yield Strength .2% offset ksi 81.0 80.3
Percent Elongation in 2.0" 19.0 14.0