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Thread: The quality of steel in war production no4s

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ssj The quality of steel in war... 08-08-2013, 05:13 PM
breakeyp I would lose no sleep over... 08-08-2013, 05:31 PM
Bruce_in_Oz It's not just the steels. ... 08-08-2013, 08:58 PM
ssj Yes interesting how armaments... 08-09-2013, 02:34 AM
Peter Laidler Your description is as good... 08-09-2013, 05:09 AM
WarPig1976 What's the deal with Steel... 08-09-2013, 06:57 AM
Ridolpho Comments regarding the... 08-09-2013, 10:09 AM
Rumpelhardt I thought the Swede's said... 08-09-2013, 10:24 AM
breakeyp When I was being thumped to... 08-09-2013, 05:51 PM
ssj ======= It depends on the... 08-11-2013, 07:12 PM
jmoore I've not seen any... 08-12-2013, 04:45 AM
breakeyp When I heard these things I... 08-12-2013, 07:46 AM
jmoore All sorts of NDT methods.... 08-13-2013, 03:31 AM
bob4wd Really? Have you talked to a... 08-11-2013, 07:52 PM
Rumpelhardt A lot of HY80 is used in... 08-11-2013, 08:04 PM
ssj Surface ships dont dive... 08-11-2013, 11:31 PM
Big Ball Bag Swedes didn't quite get it... 08-12-2013, 01:37 AM
Rumpelhardt This is very true but 9,000... 08-12-2013, 03:09 PM
bigduke6 An old Esso tanker I was on... 08-12-2013, 07:19 PM
ssj This was the first sub I... 08-12-2013, 07:33 PM
villiers Sufficient unto the need. My... 08-12-2013, 02:34 AM
bob4wd You miss the point. 08-12-2013, 12:24 PM
RobD Bob4WD, if, speaking... 08-12-2013, 04:04 AM
Frederick303 Not a metallurgical engineer,... 08-12-2013, 02:01 PM
WarPig1976 bob4wd I think your wrong on... 08-12-2013, 02:13 PM
bob4wd I can't argue with any of... 08-12-2013, 05:22 PM
breakeyp regarding how heat treat was... 08-12-2013, 06:55 PM
bigduke6 I started in the training... 08-13-2013, 06:46 AM
Peter Laidler The next time anyone comments... 08-17-2013, 09:06 AM
muffett.2008 It certainly explains why I... 08-17-2013, 05:59 PM
bigduke6 There is a number you can... 08-18-2013, 01:17 AM
Bruce_in_Oz Home delivery? 08-18-2013, 02:11 AM
villiers Think it´s all about not... 08-18-2013, 04:03 AM
303Guy Speaking of oiling... 08-19-2013, 10:01 PM
ssj I'd almost suspect its... 08-19-2013, 11:19 PM
303Guy I'm in the big smoke. How... 08-20-2013, 05:33 AM
Ridolpho Comments about lighter loads... 08-20-2013, 05:33 PM
ssj Somewhere in the WSRA rules... 08-20-2013, 06:42 PM
303Guy I concur. If anything the... 08-20-2013, 08:37 PM
Peter Laidler Who told you that the... 08-21-2013, 04:50 AM
303Guy Now that you ask, I don't... 08-21-2013, 05:14 AM
ssj From what ive read elsewhere... 08-21-2013, 03:16 PM
Peter Laidler The increased pressures were... 08-21-2013, 05:32 AM
303Guy Well well! Is it possible... 08-21-2013, 06:24 AM
Thunderbox The "stronger steel" comment... 08-21-2013, 11:31 AM
Ridolpho This thread continues to... 08-21-2013, 02:55 PM
Peter Laidler I really don't believe that... 08-21-2013, 03:08 PM
Bruce_in_Oz I have actually had my sticky... 08-22-2013, 12:23 AM
303Guy I've found where the 7.62... 08-21-2013, 10:25 PM
muffett.2008 The reasons for these tests... 08-22-2013, 06:31 AM
303Guy The pages from the book I... 08-22-2013, 03:27 AM
Bindi2 What military would allow any... 08-22-2013, 07:30 AM
Ridolpho I apologize for dragging this... 08-22-2013, 11:46 AM
Bruce_in_Oz One (last?) thing: the very... 08-24-2013, 02:03 AM
Thunderbox I don't think anyone,... 08-24-2013, 05:22 AM
303Guy On the Ishapore 2A's, it... 08-24-2013, 06:10 AM
Thunderbox I think you are just picking... 08-24-2013, 08:00 AM
villiers I thought (hoped) that this... 08-24-2013, 10:17 AM
jmoore Regarding history, about the... 08-24-2013, 01:13 PM
  1. #28
    Legacy Member Bruce_in_Oz's Avatar
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    I have actually had my sticky paws on one of the "failed" Lithgowicon conversions.

    The reason if failed was that it was subjected to a diet of OILED proof rounds. That is a good way to seriously stress ANY action. The "blown" action had also been modified to accept FN/L1A1 magazines.

    The original project was allegedly intended to produce a "second-line" rifle, with the L1A1 being general issue.

    I suspect that whoever organised the oiled proof rounds had no intention of allowing a "second line" rifle into the system.

    As for the materials used, I think I have posted the steel recipes from the "early" days, and 1938 here previously. I can dig them out again and let the metalurgists comment on the differences.

    Is was an article of faith among target shooters that pre-1919 Lithgows were the "best" metalurgically speaking. This may have been related to the proportion of "vintage" Lithgows used as platforms for the "T" series.

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