Color coding of steels

Tom Militano said:
I also have ATS34, 440C, and 416SS with green ends. I have some D2 and A2 with red ends. 1084 with a blue end. With all the technical info out there about various types of steel I've never figured out why the steel industry has never set guide lines as to color coding. I realize steel will vary from company to company, but they could at least put you in the ballpark with a standard coloring system.
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Agreed... The guy who got these has a copy of the shipping and spect sheets so as soon as I see him next I'll have the info on what exactly it is.
I usually store the diferent steels seperately so I know what is what but sometimes when I'm finished foreging I set the unused pieces to kool. If they get mixed up....? I like the idea of my own color code. Probably should do the forged but unfinished blades too.
 
I always write on the material what type of steel it is when it comes into the shop and I write it on the cut off pieces too. You can't pay any attention to the various color coding systems that different companies use.
 
Larry
According to the Heat Treaters Guide, normalize at 1650°F, austenize at 1600°F, Oil quench. Don't stop to scratch once you pull it out of the Kiln/forge, you have three to four seconds to drop the temp below 800°F or you cut across the P nose and end up with some pearlite mixed with you martensite. If done right you should get a HRC 60 as quenched. The table showed a temper at 400°F veilding a Brinell hardness of 550. I can't locate my cross reference but I believe this is about HRC of 57. I'll look for it tomorrow and shoot the info to you.

Jim A.
 
550 Brinell is about 54 Rc. That sounds a bit low ? 57 sounds more likely.
 
DAMNENG said:
Larry
According to the Heat Treaters Guide, normalize at 1650°F, austenize at 1600°F, Oil quench. Don't stop to scratch once you pull it out of the Kiln/forge, you have three to four seconds to drop the temp below 800°F or you cut across the P nose and end up with some pearlite mixed with you martensite. If done right you should get a HRC 60 as quenched. The table showed a temper at 400°F veilding a Brinell hardness of 550. I can't locate my cross reference but I believe this is about HRC of 57. I'll look for it tomorrow and shoot the info to you.

Jim A.
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Larry

I finally found the cross reference between Brinell and Rockwell C 550 HB is approximately HRC 54. Seems the older I get the more time I spend looking for something.

Jim
 
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