| Important Facts To
Know Before Buying A New Harrow!!
A comparison done by an independent
testing laboratory of components of “ours” vs “theirs”.
HARROW PIPE
“Ours” – 1.66” o.d. x 0.105 wall High Carbon steel tubing with .30
carbon content, 71,900 psi yield strength and 86,400 psi tensile
strength.
“Theirs” – 1.66” o.d. x 0.105 wall
tubing with .12 carbon content, 50,330 psi yield strength & 61,880 psi
tensile strength.
Test conducted according to ASTM: A370
HARROW TEETH
“Ours” – 1055 Carbon Steel w/ carbon content of 0.60
We then hammer-forge the point, compressing the carbon, which gives
our tooth superior hardness.
“Theirs” – 1040 Carbon Steel w/ carbon
content of 0.37-0.44
The point is then pulled out, softening the interior of the tooth.
Test conducted according to ASTM: E350
TOOTH WEAR TEST CONDUCTED BY PEPIN IN
THE WINTER OF 1990:
Since test was done, Pepin’s teeth have
been lengthened ˝” more.
With all these things in mind…
Which Harrow will you buy?? |