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bonanza
.400 member


Reged: 17/05/04
Posts: 2335
Loc: South Carolina
Re: New Steel vs Old steel
      23/05/07 10:17 PM

From Rifle Magazine:

"From about 1899 on for the .45-70 and 1903 for the .33 WCF, barrels were nickel steel with a tensile strength of approximately 100,000 psi."

From Encyclopedia of metallurgy for 4140 steel:

"In the heat treated condition tensile strengths of 170,000 PSI. for small section and 140,000 PSI for larger section are attended all combined with good ductility and resistance to shock."

Note:

Rifle barrels are usually made from 4130 and 4140, but are not heat treated. Heat treating makes steel more brittle. The tensile strength is still greater than 100,000 psi.


In conclusion:

The discipline of making steel in the nitro era (1898-2007) has been such that a sufficient margin of headroom is afforded.

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Subject Posted by Posted on
* New Steel vs Old steel hoppdoc 19/05/07 01:07 PM
. * * Re: New Steel vs Old steel mehulkamdar   19/05/07 01:17 PM
. * * Re: New Steel vs Old steel mickey   19/05/07 04:25 PM
. * * Re: New Steel vs Old steel mehulkamdar   22/05/07 04:38 PM
. * * Re: New Steel vs Old steel hoppdoc   19/05/07 07:07 PM
. * * Re: New Steel vs Old steel dnovo   19/05/07 09:09 PM
. * * Re: New Steel vs Old steel AzGuy   19/05/07 11:59 PM
. * * Re: New Steel vs Old steel Marrakai   21/05/07 01:39 PM
. * * Re: New Steel vs Old steel 400NitroExpress   23/05/07 02:22 AM
. * * Re: New Steel vs Old steel hoppdoc   23/05/07 11:17 AM
. * * Re: New Steel vs Old steel 400NitroExpress   24/05/07 03:06 AM
. * * Re: New Steel vs Old steel hoppdoc   24/05/07 06:53 AM
. * * Re: New Steel vs Old steel bonanza   24/05/07 07:22 AM
. * * Re: New Steel vs Old steel 400NitroExpress   24/05/07 06:01 PM
. * * Re: New Steel vs Old steel Grizzly   24/05/07 08:02 AM
. * * Re: New Steel vs Old steel Will   24/05/07 08:46 AM
. * * Re: New Steel vs Old steel 400NitroExpress   24/05/07 06:15 PM
. * * Re: New Steel vs Old steel Will   25/05/07 12:33 AM
. * * Re: New Steel vs Old steel mehulkamdar   25/05/07 07:07 AM
. * * Re: New Steel vs Old steel Will   25/05/07 08:30 AM
. * * Re: New Steel vs Old steel Grizzly   24/05/07 12:11 PM
. * * Re: New Steel vs Old steel CptCurlAdministrator   24/05/07 11:57 AM
. * * Re: New Steel vs Old steel 400NitroExpress   25/05/07 01:11 AM
. * * Re: New Steel vs Old steel hoppdoc   25/05/07 10:27 AM
. * * Re: New Steel vs Old steel bonanza   25/05/07 03:26 AM
. * * Re: New Steel vs Old steel Chasseur   24/05/07 12:27 PM
. * * Re: New Steel vs Old steel bonanza   23/05/07 10:17 PM
. * * Re: New Steel vs Old steel hoppdoc   24/05/07 02:37 AM
. * * Re: New Steel vs Old steel AzGuy   21/05/07 02:05 PM
. * * Re: New Steel vs Old steel Marrakai   22/05/07 01:03 PM
. * * Re: New Steel vs Old steel NE450No2   22/05/07 04:08 PM
. * * Re: New Steel vs Old steel hoppdoc   19/05/07 11:22 PM
. * * Re: New Steel vs Old steel mehulkamdar   23/05/07 01:28 AM
. * * Re: New Steel vs Old steel empirevr   19/05/07 09:49 PM

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