manganese steel

Date 09-05-2004 03:48

If you want to do some reading, here are a few links:

http://www.key-to-steel.com/articles/art69.htm

http://www.forester.net/gx_0011_metallurgy.html

http://www.forester.net/gx_0101_dealing.html

Not sure what training courses may be available for a refresher.

Hope this helps.

By supermechanic (**)

Date 09-06-2004 00:36

Thanks, found some good reading.
I'm more interested in applicable pre-heat temps, interpass temps, and what new products may be available for manganese steel.
I remember some names like 'stoody' and 'hastaloy', but that was a while back.

By ajoy

Date 09-06-2004 04:45

You should be using a stainless steel alloy which is close to 18 Cr, 8 Ni and 5 Mn. For eg. Citochromax N of Oerlikon.

The above composition suits best to joint manganese steel. it has some work hardening property as well.

The rules of the game are :

1. Before welding, ensure that the parts are in the quenched (softened) state. It would be a bad idea to weld manganese steel which is already work hardened to some extent.
2. Do not preheat.
3. Keep the interpass temperature below 150 deg. c.
4. Do not weld continuously at one place, spread out the heat.
5. Keep the heat input low, dont puddle at one place.

The above will avoid precipitation of manganese carbide and resulting hardenability.

By jwright650 (*****)

Date 09-07-2004 11:22

There are two brands that we have used for welding on a shot blast cabinent, which is made of manganese plate.
First, "STOODY" 1/8" Nicromang,
Second, "STULTZ" 1/8" Manganese XL.

These were a couple SMAW rods used for repairs.
John Wright

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

Date 09-10-2004 13:35

The Maintenance Welding Manual, published by ESAB, deals extensively with the applications you're talking about.
I've got the Portuguese language edition of the manual, but surely there must be an English edition. Check with ESAB.
According to the manual, for bucket teeth working with soils made up of fine grains, OK Selectrode 84.78 eletrodes should be used. For teeth working with rocky soils, OK Selectrode 83.58 eletrodes are the choice.
Giovanni S. Crisi
Sao Paulo - Brazil