LugerForum Discussion Forums my profile | register | faq | search
upload photo | donate | calendar

Go Back   LugerForum Discussion Forums > Luger Discussion Forums > Krieghoff Lugers

Reply
Thread Tools Display Modes
Unread 06-29-2017, 07:59 PM   #1
Thor
User
 
Thor's Avatar
 
Join Date: Jun 2002
Location: Rio Rancho, New Mexico
Posts: 4,583
Thanks: 958
Thanked 970 Times in 276 Posts
Default Krieghoff Fireblue Magazine Release Button

Does anyone know why Krieghoff fire blued their mag release buttons? Always been curious about this. Bottom one is one I restored. An S Date.

__________________
Thor's Luger Clinic http://members.rennlist.com/lugerman/
Ted Green (Thor Yaller Boots)
725 Western Hills Dr SE, Rio Rancho, NM 87124
915-526-8925 Email
thor340@aol.com
-----------------------------------
John3:3
Jesus answered and said to him, "Most assuredly, I say to you, unless one is born again, he cannot see the kingdom of God."
Thor is offline   Reply With Quote
Unread 06-29-2017, 08:40 PM   #2
Norme
Always A
Lifetime Forum
Patron
 
Norme's Avatar
 
Join Date: Jul 2009
Location: Colorado
Posts: 2,414
Thanks: 223
Thanked 2,590 Times in 930 Posts
Default

Hi Thor,
As you know the Luger magazine release is not a highly stressed part (I've never heard of one breaking or wearing out) and I don't think Kreighoff cared what color they turned out after heat treating. I've seen them almost every color of the spectrum, here's mine.
Regards, Norm
Attached Thumbnails
Click image for larger version

Name:	L 7g.jpg
Views:	71
Size:	96.5 KB
ID:	66893  

Norme is offline   Reply With Quote
The following member says Thank You to Norme for your post:
Unread 06-29-2017, 09:13 PM   #3
Thor
User
 
Thor's Avatar
 
Join Date: Jun 2002
Location: Rio Rancho, New Mexico
Posts: 4,583
Thanks: 958
Thanked 970 Times in 276 Posts
Default

Thank you Norme, interesting. Very Nice Pistol!
__________________
Thor's Luger Clinic http://members.rennlist.com/lugerman/
Ted Green (Thor Yaller Boots)
725 Western Hills Dr SE, Rio Rancho, NM 87124
915-526-8925 Email
thor340@aol.com
-----------------------------------
John3:3
Jesus answered and said to him, "Most assuredly, I say to you, unless one is born again, he cannot see the kingdom of God."
Thor is offline   Reply With Quote
Unread 06-29-2017, 10:04 PM   #4
CJS57
User
 
Join Date: Nov 2011
Posts: 224
Thanks: 0
Thanked 81 Times in 41 Posts
Default

Perhaps the fire blue hardened the metal a bit as it is a part that could wear with the magazine constantly going in and out?
CJS57 is offline   Reply With Quote
Unread 06-30-2017, 07:47 AM   #5
1933 FORD NUT
User
 
1933 FORD NUT's Avatar
 
Join Date: Apr 2015
Location: WI
Posts: 88
Thanks: 3
Thanked 69 Times in 36 Posts
Default

Couple examples in the normal range .

Norme's example is less common .

There are other fire-blue parts inside . Holdopen [ polished on top only ] , S bar , recoil lever , toggle axle etc.

No idea why and my S date 2014 has the thumb safety lever mostly fire blue except the edges that are strawed . Heat was off I would guess ?
Attached Thumbnails
Click image for larger version

Name:	IMG_0007 (2).jpg
Views:	68
Size:	173.3 KB
ID:	66903  

Click image for larger version

Name:	IMG_0001.jpg
Views:	66
Size:	172.0 KB
ID:	66904  

Click image for larger version

Name:	IMG_0029.jpg
Views:	86
Size:	165.8 KB
ID:	66905  

1933 FORD NUT is offline   Reply With Quote
The following member says Thank You to 1933 FORD NUT for your post:
Unread 06-30-2017, 10:55 AM   #6
DonVoigt
User
 
DonVoigt's Avatar
 
Join Date: Apr 2015
Location: near Charlotte NC
Posts: 4,674
Thanks: 1,435
Thanked 4,341 Times in 2,036 Posts
Default

Quote:
Originally Posted by CJS57 View Post
Perhaps the fire blue hardened the metal a bit as it is a part that could wear with the magazine constantly going in and out?
No,
re-heating the hardened and polished part results in the color change- from straw to fire blue. This treatment is intended(usually) to remove some of the hardness=brittleness of the part. It also helps to eliminate internal stresses.

If one continues to heat the color continues to change until it gets to grey and then becomes hot enough to glow orange. A chart of the color changes has been posted here several times.

The incidental color- which can be very pleasing- is not the main reason for "fire blue", except perhaps in custom finishng.

To the other question or comment- for sure - the temperature of the oven or bath used for the heat treatment will result in edges or thin or other spots being blue, while others are still straw.

Kind of like you see in these tools; where you can see the transition from straw to darker straw, blue, purplish blue, and purple brown.
Attached Thumbnails
Click image for larger version

Name:	P1210175.jpg
Views:	60
Size:	240.0 KB
ID:	66906  

__________________
03man(Don Voigt); Luger student and collector.
Looking for DWM side plate: 69 ; Dreyse 1907 pistol K.S. Gendarmerie
DonVoigt is offline   Reply With Quote
The following 3 members says Thank You to DonVoigt for your post:
Unread 06-30-2017, 10:24 PM   #7
CJS57
User
 
Join Date: Nov 2011
Posts: 224
Thanks: 0
Thanked 81 Times in 41 Posts
Default

Don, Yes thank you, perhaps the fire blue was to normalize the hardened part as well as for the attractive color.
CJS57 is offline   Reply With Quote
The following member says Thank You to CJS57 for your post:
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -4. The time now is 04:06 PM.


Powered by vBulletin® Version 3.8.4
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
Copyright © 1998 - 2023, Lugerforum.com