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ASTM A262 Practice E for welded SS304L plate with CS plate
2

ASTM A262 Practice E for welded SS304L plate with CS plate

ASTM A262 Practice E for welded SS304L plate with CS plate

(OP)
Hi

Is it possible to perform ASTM A262 Practice E on dissimilar metals(SS304L Butt welded to Carbon steel).

What do you guys think about it.

Personally i do not think so it is feasible to perform this test on dissimilar metals joined by welding.

RE: ASTM A262 Practice E for welded SS304L plate with CS plate

Yes you can do the test, and it should fail. With the Fe and C picked up from weld dilution you would never expect it to pass.
And what does it matter, as long as the weld is as good as the CS then it is fine.

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P.E. Metallurgy, Plymouth Tube

RE: ASTM A262 Practice E for welded SS304L plate with CS plate

(OP)
thanks for sharing your views.

What i understood from your reply is that this joint is not feasible and will give us sensitization problem?

What about Practice A? will samples show sensitization in the weld metal and HAZ area?

RE: ASTM A262 Practice E for welded SS304L plate with CS plate

Quote:

Is it possible to perform ASTM A262 Practice E on dissimilar metals(SS304L Butt welded to Carbon steel).

What do you guys think about it.

Yes it is possible.

Not necessary.

For Practice A it can be done to evaluate the degree of sensitization in the 304L HAZ.

RE: ASTM A262 Practice E for welded SS304L plate with CS plate

You can do a micro and etch, it will show how much sensitization you have.
The weld metal will be sensitized, unless you have so much dilution from the CS that it isn't austenitic at all.
Depending on the filler your 304L HAZ should not show any sensitization except for right along the weld.

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P.E. Metallurgy, Plymouth Tube

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