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Jominy test

thread367-21260

Jominy test

Jominy test

(OP)
Hi, a purchaser have asked us about the Jominy test of some of the materials we use in our pumps, exactly about our pump shaft. What I want to know is if Jominy test cover all steels, I do not have right now the ASTM procedure to know the scope so I mean stainless steels and air hardenable steels (in this case if it is hardenable on air the Jominy test will help for the same purpose??), because the materials is one of that kind. Also we deliver our shaft without a quenching treatment, so why is necessary to bring the Jominy test info of the material when is does not receive any heat treatment. Does they use this info in replace of the chemical test?. The purchaser is from USA so I guess in USA is very common to ask for this or not??. Thanks in advance  
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RE: Jominy test

Please see my answer in the metallurgy forum

RE: Jominy test

The ASTM spec (255) is essentially the same as the SAE's J406.  Let me quote the opening sentence of that spec (it's what I have at hand): "This SAE Standard prescribes the procedure for making hardenability tests and recording results on shallow and medium hardening steels, but not deep hardening steels that will normally air harden."

The Jominy Bar test would seem to be inappropriate.

P.S. These days, the Jomony curve is usually calculated from knowledge of the steel's composition.

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