material examination steelframe composition

[Ralphy]

xb-60, you may have taught me something. I was thinking mild steel such as 1020 contained no more than 0.2% carbon? Being the second two digits represents the carbon quantity. Same in all steels a high carbon of 1040 equaling no more than 0.4%?

Ralphy

[xb-60]

Originally Posted by Ralphy

xb-60, you may have taught me something. I was thinking mild steel such as 1020 contained no more than 0.2% carbon? Being the second two digits represents the carbon quantity. Same in all steels a high carbon of 1040 equaling no more than 0.4%?

Ralphy

Ralphy,
My figures were for CA2S-E (cold rolled, formable) http://www.bluescopesteel.com.au/files/CA2S-E.pdf
which is similar to 1010, and has a max carbon content of 0.10%
You're correct that 1020 has a maximum carbon content of 0.20%
Cheers,
Glen

[Ralphy]

Originally Posted by xb-60

Ralphy,
My figures were for CA2S-E (cold rolled, formable) http://www.bluescopesteel.com.au/files/CA2S-E.pdf
which is similar to 1010, and has a max carbon content of 0.10%
You're correct that 1020 has a maximum carbon content of 0.20%
Cheers,
Glen

I never saw a material..... well I never cut a material with that low of carbon. We used to get a material called leadloy. You could fly thru the stuff. I believe leaded metals are gone. That must be nice for forming.

Added:
Maybe it's still available, it was 12L14 and called ledloy not leadloy.

Ralphy

[xb-60]

Ledloy is still a low carbon steel with carbon content at 0.15%, but it has 0.15 to 0.35% lead content which makes it a very easy machining and ductile steel
Cheers,
Glen