Joined
Jan 19, 2017
Messages
32
I'm from China. The knife is made of cpm3V+米卡塔,hrc60.8 size:540mm*43mm*7.4mm
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Nice looking blade -

The handle has some sharp edges on it, but the treatment sure is good looking!

And Bos heat treat with a hamon - do you have Bos do the heat treat to create the hamon?

Very nice work - thanks for the pictures and welcome to the forum.

best

mqqn
 
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My English is poor.The steel plate of this knife was purchased from the United States.I'm also very glad to meet you here.
 
IMG_8537_zpschvo7ccr.jpg

My English is poor.The steel plate of this knife was purchased from the United States.I'm also very glad to meet you here.

Your English is better than many who claim it is native! Beautiful work on your knife, an I look forward to seeing more and having you as part of the Bladeforums community!

best

mqqn
 
Welcome to Bladeforums. The knife looks very nice.

I have a few questions and comments.
Questions first:
1) How was the Heat Treatment done?
2) What company did the steel come from, and are you sure it is CPM3V?
3) Is the hamon an etched hamon made with a strong acid, or one polished to make it show, as in japanese yaki-ire and togi?

Comments:
BOS is not a steel type or a manufacturer, It is a method of melting scrap steel and making new steel in the steel industry. It is the Basic Oxygen Steelmaking process - BOS for short. This is the most common method for making the standard construction steel ( A36 and similar), but I am not sure if 3V is made by this process.
Marking the blade BOS will mislead many people to assume that the HT was done by Paul Bos at Buck Knife company.

A hamon is a differential hardening line that is the boundary between a hard martensite edge and a softer pearlite spine. It requires a low alloy and shallow hardening steel and a fast oil or water as the quenchant. 3V steel is high alloy and deep hardening. It is an air hardening steel, and should not attain a hamon by any normal methods.
 
That is the Bos heat treat logo that Buck knives use on their blades...

Who did the heat treat on this blade?
 
Please inform whether or not your knives were heat treated by BOS.
 
thanks for clarifying
 
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