Junk yard find had it scaned, help

R

RockFireForge

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It's some kind of blade from farm equipment anybody know what it is from the chemical make up
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I'm wondering if somebody could look at the metallurical info I have in the picture and tell me exactly what it is


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OP is asking what kind of steel that disc is made of based on the elements shown in the analysis.

I'd be surprised if it was anything more than common spring steel.


Googling 'disc plow steel' returns something like 1050~1070.
 
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No carbon %?

I'm not a farmer, but I would guess the relatively high manganese alloy percentage is there to enhance work hardening, which makes sense for a disc harrow blade. A lot of bulldozer blades are made out of high-manganese alloys for that reason.
 
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From the site of a disc harrow blade seller:

"We currently import our disc blades from India , Brazil and China . All of our disc blades are heat treated to provide maximum resistance to breaking. Indian disc blades are 1070 Steel, 38-42 HRC. Brazilian disc blades are 1080 Steel 38-42 HRC, China disc blades are 65MN. 38-42 HRC."

65MN appears to be essentially a Chinese 1065 equivalent. Like others have said, it looks like these should be some kind of no-frills carbon steel.
 
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