Welding ASTM A 36 Plate - ASTM A 333 pipe

Date 01-10-2009 16:33

Hi guys,

I will make a fillet weld between plate A36 (35mm thk) and pipe A333 Gr 6 (Ø18", WT 14.27mm), the pipe supplied has Ni (0.1%) and Cr (0.16%), with these values the Ce is 33, I have not experience with that material, Any suggestion? Is necessary any action to prevent problems?

Thanks for your comments,

JUAN

By G.S.Crisi (****)

Date 01-12-2009 12:29

Juan,
by Ce you mean Carbon Equivalence? If so, don't you think that a carbon equivalence of 33 is too high?
Giovanni S. Crisi
Sao Paulo - Brazil

By Quibo

Date 01-12-2009 13:27

Dear Mr. Crisi, thanks for your post, is correct your comment, the carbon equivalence is 0.33.

By js55

Date 01-12-2009 13:52

There is nothing exceptional about welding A36 or 333GR 6. A36 is a large grained hot finished carbon steel. Gr 6 is a fine grained fully killed carbon steel, and is supplied with impacts at -50F. Thats why the nickel, though there is not enough of it to require any great variance in carbon steel procedures, unless your doing impacts, the usual application for Gr6, and then the A36 may cause you problems if your test temp is too low.

By Quibo

Date 01-13-2009 14:34

Thanks for your answer.