Sheffcut - your experience?

M

MinusFortyForge

Joined
Jan 26, 2025
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I've forged several bars of gfs sheffcut steel and have had mixed results. I find it hardens well in water quench and is relatively resistant to a harsh quench such as water/brine. However, i've regularly had cracking during forging issues with this steel that i don't experience with Aldo 1075, 80crv2, or 1095. Once when I heated my bar of Sheffcut and took it from the forge and the bar fell in half under it's own weight at the heated section. that section had not yet been forged. Nothing remotely close to that has happened with a different steel. I wonder if anyone else who has tried this steel has experienced these issues?
 
The bar that you said broke in half when you took it from the forge, was that the first heat on that piece? If so it would inspect the rest of your stock for micro-cracks.

I have no experience with sheffcut. But if you find that the rest of your stock has micro cracks or fractures you should probably contact the supplier you bought it from. Maybe they can give you a heat# for your order so you have a reference of when your supply of sheffcut was made. This sounds like a defect in manufacturing to me.
 
running bird said:
The bar that you said broke in half when you took it from the forge, was that the first heat on that piece? If so it would inspect the rest of your stock for micro-cracks.

I have no experience with sheffcut. But if you find that the rest of your stock has micro cracks or fractures you should probably contact the supplier you bought it from. Maybe they can give you a heat# for your order so you have a reference of when your supply of sheffcut was made. This sounds like a defect in manufacturing to me.
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thank you, only the first heat on the section that just fell in half, steel had been worked in many other sections
 
DevinT said:
The higher the carbon content of a steel, the narrower the forging range.

You’re forging way too hot.

The higher the carbon content of a steel, the lower the melting temperature.

Hoss
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thank you, on other bars i suspect you are right, but my most recent forging session i was very careful and it only went to about 2100F one time. About 1600F was where I took it to on most heats. Did I forge into dull-red heat? multiple times, definitely. But I would have guessed forging too cold rather than too hot on this one. But perhaps the problem is i'm forging either too hot or too cold when steel with this carbon content really needs to be in the 1700F to 1400F range and no hotter or colder? I didn't know the higher the carbon the lower the range, I thought that was the case with highly alloyed steels but didn't know this,
 
DevinT said:
Coal or propane? Other? Are you forging outside? Inside a shop?

Hoss
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Charcoal, outside, during evening/night. Previous sessions have been daylight overheating sh*tshows absolutely, but i've improved a lot on my temperature control and forge management.
 
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