material examination steelframe composition

[ItBites]

Joyridin: Thanks for the personal attack. I will not stoop to that, however, +/- 3% is not accurate enough to determine if the alloying metals are present in the small concentrations required. You can get close, but if you are looking to determine which Heat Lot of material you have or are trying to discriminate between similar alloys, that presision is inadequate. In aerospace this technique is not allowed by the Mil Specs for determining alloying composition. I wouldn't base million dollar decisions on it. Probably good enough for scrap metal dealers though.

[joyridin']

You did make a personal attack. Instead of just asking about the product, you had to say I was full of it.

And contrary to your theory, it is used in all industries. The company that has the product I use manufactures specialty bearings for all industries. I suppose if you need to find finite compositions, you might look elsewhere, but for 95% of the applications it is totally accurate. It can easily pick out one heat lot from another as long as you are determining chemical composition and not hardness.

It can pick out any type of stainless you put in front of it along with a breakdown of the chemical composition. I would say if you haven't used one, you really don't have a lot of talking room. For the topic on hand, it will easily determine the material used and the chemical properties.

[AL427SBF]

Originally Posted by ItBites

Joyridin: I call BS

Originally Posted by joyridin'

What? You are full of bs? Is that what you are saying?

Originally Posted by ItBites

Joyridin: Thanks for the personal attack. I will not stoop to that ...

"I will not stoop to that" ... too funny!

[xb-60]

Mild steel is definitely an alloy as has been stated several times. Alloying elements are carbon, typically 0.04% to 0.07%, phosphorus 0.005 to 0.02%, manganese 0.18 to 0.25%, sulphur at 0.008 to 0.02%, and smaller amounts of silicon, aluminium, nitrogen....
A small change can have a significant effect on strength and mechanical properties.
Cheers,
Glen