tag:blogger.com,1999:blog-9038805453913133808.post1963164836089378786..comments2024-03-14T00:37:58.663-07:00Comments on Firearms History, Technology & Development: Metals Used in Firearms - IIThe Editorhttp://www.blogger.com/profile/16500376725481184982noreply@blogger.comBlogger2125tag:blogger.com,1999:blog-9038805453913133808.post-15479731766417535932015-04-10T12:46:06.781-07:002015-04-10T12:46:06.781-07:00Thank you very much for your kind comments and fee...Thank you very much for your kind comments and feedback Mr. Kerr. It is always a pleasure to hear back from the readers of this blog :).The Editorhttps://www.blogger.com/profile/16500376725481184982noreply@blogger.comtag:blogger.com,1999:blog-9038805453913133808.post-72267517451432133382015-04-08T21:41:00.866-07:002015-04-08T21:41:00.866-07:00These articles on gun steels are pretty good howev...These articles on gun steels are pretty good however there are other steel alloys which can be used. One of the things that needs to be stressed in making gun parts is the correct heat treatment and drawing of these parts. Procedures must be followed religiously or failures will result. Gun parts such as bolts and receivers can be made out of Carpenter A2, D2,O1 or S7. I've used a lot of 4140 in my gun parts. It's tried and true. It is free machining but make sure your tools are sharp. If the work gets hot it will work harden in a hurry!<br />Kerwin Kerr, retired GE tool & diemakerRedBeard2https://www.blogger.com/profile/15598736255736623021noreply@blogger.com