1077 other than kershaw camp

H

hawkbag

Joined
Jan 14, 2016
Messages
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Hi all im new here and looking to forge weld a cable knife.
Ive got a bit of experience with heat treatment and forging techniques but im in no way an expert. Through work i have tonnes of post tention cable off cuts available, and the manufacturer kindly sent me the exact metallurgical make up of the steel its 1077. But i cant find much about that steel apart from the kershaw. Any other help or info would be great. Thanks
 
Post the percent composition. But I'd guess, forge weld it like any 10xx, high carbon steel. Might be some differences for the heat treatment depending on the alloying elements.
 
Bo T said:
Post the percent composition. But I'd guess, forge weld it like any 10xx, high carbon steel. Might be some differences for the heat treatment depending on the alloying elements.
Click to expand...

Im still trying to figure out how to do that. Im at work on my phone ill have another go when i get home on the computer.
 
there are two slightly different steels available to me, they are

GRADE : W4K1077

ELEMENT RANGE

C 0.7700 / 0.8000
P / 0.0250
MN 0.6500 / 0.8000
SI 0.4000 / 0.5500
S / 0.0250
NI / 0.0500
CR 0.1800 / 0.2600
MO / 0.0200
CU / 0.0500
N / 0.0080





GRADE : W8K1077

ELEMENT RANGE
C 0.7700 / 0.8000
P / 0.0250
MN 0.5000 / 0.6500
SI 0.9000 / 1.0500
S / 0.0250
NI / 0.0500
CR 0.1800 / 0.2600
MO / 0.0200
CU / 0.0500
N / 0.0080


i think they would make a great knife but as I said any one with experience or info on this steel would help a lot.
also I believe more silicon is a good thing am I right in assuming the w8k1077 would be better?
 
For cable damascus, I would pick the higher Mn alloying. It will make it deeper hardening.
 
Forgive me if i didnt understand but i wont be making a huge sword like chopper but a thin japanese style kitchen knife, i didnt think hardening it through would be a issue.
 
Deep hardening and shallow hardening are terms that describe the speed (and depth on thick things) of hardenability. 1095, W2, and things like Hitachi white paper steel are shallow hardening, and require a very fast quench. This is either Parks #50, or water/brine.

W4K1077, 5160, O-1 and steels with higher manganese are deep hardening and will work with a slower and less violent quenchant.

What I was saying is if you have a choice, take the W4K1077 higher manganese cable.
 
Ok i get it. I do have a choice and can get tonnes of either grade, im glad i managed to find some steel that i could confidently say whats in it. i read alot about mystery steel and like many have said its best to use something you know for sure rather than guessing. Thanks for info and help ill post pics as i go.
 
The higher manganese steels will respond better to the "medium-fast" oils like Brownell's Tough Quench which is repackaged Houghton as best as I can tell or the McMaster-Carr stuff. The Brownells stuff is stupid expensive at $59 a gallon. You can get a gallon of 11 second oil from McMaster-Carr for $19 plus shipping. .
 
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