No registration or passwords; no pop-up ads -- just aloha, fun, & answers.
(as an eBay Partner & Amazon Affiliate earns from qualifying purchases).
Home /
T.O.C.
Fun
FAQs
Good
Books
Ref.
Libr.
Advertise
 
Help
Wanted
Current
Q&A's
Site 🔍
Search
pub  Where the
world gathers for metal finishing
Q&As since 1989



-----

ATM standard of 4340 steel




Dear sir,

I am currently doing a project on "The effect of hydrogen charging on tensile properties of high strength steel, grade 4340".......so I want to know what is the specific ASTM standard which gives information regarding hydrogen embrittlement of 4340steel.

Janardhan Rao Saithala
- Sheffield, UK
2002



Hello Janardhan!

I have to assume that you are familiar with the work of A.R. Troiano, who wrote a lot about this topic in the 1950's, and published in Transactions of the AIME. Given that, you'll want to examine ASTM volume 15.03, which has a number of specifications for testing for hydrogen embrittlement. ASTM F519 [affil link] , for example, assumes that air melt 4340 is the worst case material and uses material per Mil-S-5000 for its test samples.

Good luck!

lee gearhart
Lee Gearhart
metallurgist - E. Aurora, New York
2002




(No "dead threads" here! If this page isn't currently on the Hotline your Q, A, or Comment will restore it)

Q, A, or Comment on THIS thread -or- Start a NEW Thread

Disclaimer: It's not possible to fully diagnose a finishing problem or the hazards of an operation via these pages. All information presented is for general reference and does not represent a professional opinion nor the policy of an author's employer. The internet is largely anonymous & unvetted; some names may be fictitious and some recommendations might be harmful.

If you are seeking a product or service related to metal finishing, please check these Directories:

 
Jobshops
Capital
Equipment
Chemicals &
Consumables
Consult'g, Train'g
& Software


About/Contact  -  Privacy Policy  -  ©1995-2024 finishing.com, Pine Beach, New Jersey, USA  -  about "affil links"