Cast steel

By GRoberts (***)

Date 07-21-2003 18:43

try www.sfsa.org
(steel founders society of america)

By Niekie3 (***)

Date 07-21-2003 18:51

Hi

This is a rather broad question, because you get cast steel that is equivalent to almost all the wrought steel grades. They are typically welded with procedures that are similar to those of the wrought material forms. What are you particularly interested in?

Regards
Niekie Jooste

By - Date 07-21-2003 20:32

hi
particularly , i need to know can i weld a cast steel with normal
electrode like E-7018 , I HAVE A GATE VALVE AND THERE A CRACK
ON IT AND THIS VALVE MADE FROM CAST STEEL HOW CAN
I REPIAR IT.
THANKS

By brande

Date 07-22-2003 05:10

If is is cast steel, a 7018 or similar electrode or wire should work well.
Cast steel is not cast iron!!

Good Luck
brande

By Niekie3 (***)

Date 07-22-2003 19:47

Hi

Assuming that your cast steel is a cast Carbon or Carbon Manganese steel, it should weld well with the E7018 electrode. You will just have to ensure that you give it the correct pre-heats, based on the material thickness. (In castings this can often be rather substantial.)

In addition, you must check your material specification for the heat treatment condition of your valve. You may need to perform a PWHT, although this will probably not be essential if it is a carbon steel.

Regards
Niekie Jooste
Fabristruct Solutions

By - Date 07-23-2003 18:18

thanks for all
ali

By Retepnomolos Date 07-28-2003 07:05

Make sure you have checked with the valve manufacturer that welding to the valve body does not damage seals etc. I have had valve seals damaged simply by the process of welding the valve in the line (ignoring the manufacturers instructions of course.)