Test Date: 07/31/2006
Lab: Washington (USA)
Part: Tube for TXRC-SC-CH-1000 (Chassis)
Test Type: Chemical Composition / Hardness / Strength
Test Rating: As per ASTM A370
Test Procedure: Chemical tests to determine composition.
Rockwell Hardness test to determine hardness.
Tensile and Yield strength.
Test Result: All tubing tested meets AISI 4130 requirements.
 

Chassis Tubing

 
 
Test/Sample ID

3/4"

1"

1 1/4"

1 3/8"

Carbon 0.32% 0.34% 0.28% 0.29%
Manganese 0.55 0.64 0.58 0.53
Sulfur 0.022 0.017 0.011 0.021
Silicon 0.25 0.23 0.25 0.29
Chromium 0.90 0.93 0.89 0.84
Phosphorus 0.018 0.018 0.018 0.018
Molybdenum 0.16 0.17 0.17 0.17
Rockwell Hardness HRB(s) - - - -
Tensile Strength ksi 96.2 107.9 106.8 98.5
Yield Strength .2% offset ksi 95.8 100.8 97.0 89.2
Percent Elongation in 2.0" 15.0 15.0 9.5 21.0
Wall Thickness in inches 0.060 0.049 0.067 0.063