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Sandblasting 4130 chromemoly




I am going to be sandblasting 4130 chromemoly is it possible to get hydrogen embrittlement from doing this? If so what causes it? thanks

Mike Bush
machinist - Newport, Ohio
February 4, 2009


Blasting absolutely can NOT cause hydrogen embrittlement. Blasting unevenly can cause thinner parts to warp and distort.

James Watts
- Navarre, Florida
February 7, 2009



Mike,

In very broad terms, hydrogen embrittlement is the absorption of hydrogen atoms into the crystalline structure of a metal when it is immersed in a hydrogen-containing substance, such as hydrochloric acid. Hydrogen tends to accumulate and weaken the steel unless expelled by baking.

Terry Lycans
Aerospace - Dayton, Ohio, USA
February 9, 2009




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