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FAQ

Q: What are some differences between Hot Roll and Cold Roll?

A: Hot Roll is scaly with rounded edges. Cold Roll is smooth with square corners.

Q: Are 400 series Stainless Steels magnetic?

A: Yes. They contain enough Carbon to be magnetic.

Q: Are 300 series Stainless Steels magnetic?

A: No. They don’t contain enough Carbon to be magnetic.

Q: What does “Decarb Free” mean?

A: Hot Roll material has been ground on all four sides, leaving it oversized.

Q: What is the standard tolerance on Decarb Free (DCF) Tool Steels?

A: +.015 to +.030 oversized.

Q: What does “Cold Work Steel” mean?

A: Steel that is used to work materials that aren’t heated during processing. Examples: A2, D2, and O1.

Q: What does “Hot Work Steel” mean?

A: Steel that is used to work materials that are heated during processing. Examples: H13, P20, and S420.

Q: On the Rockwell C Scale, what is the hardness of 4140, 4142, and 4150 Heat Treated?

A: 26-34 Rockwell C

Q: What are the tolerances on Precision Flat Ground stock?

A: Thickness +/- .001, Width +.005/-0

Q: What are the tolerances on Oversize Flat Ground Stock?

A: Thickness & Width +.010 to +.015