Question about heat + mild steel

By BM146 Date 07-29-2004 07:03

Whats up guys, I just found this forum and I've been reading for over an hour now. Seems great!

Anyway, my question is at what temperature does mild steel glow red? I don't feel like going through my huge pile of welding books and notes from school. Thanks!

By ajoy

Date 07-29-2004 07:23

There are two stages.

Black red at 700 to 750 deg. c
White red above 800 deg. c

This is a qualitative answer, but you need to state for what purpose you need this information. You can measure it with a pyrometer for accurate results.

By thirdeye (***)

Date 07-29-2004 11:31

BM146,

Welcome to the forum. Here is a link to a basic guide to ferrous metallurgy. It is in color and has a list of terms. This is the online version of the chart distributed by Tempil.

http://www.hghouston.com/mtechart.html

By BM146 Date 07-29-2004 16:36

Thanks for the answers guys. Thats a wicked chart Thirdeye.