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BS 3100 BT1

BS 3100 BT1

BS 3100 BT1

(OP)
Can anyone tell me the maximum C content for material BS 3100 BT1.

Thanks!

RE: BS 3100 BT1

None is specified.  (Looks like this is a standard based on mechanical properties; it is also obsolete).

Aaron Tanzer
www.lehightesting.com

RE: BS 3100 BT1

(OP)
I have a casting for reparation. The C is 0.43%. will be a nightmare to weld it?

RE: BS 3100 BT1

Typical (says my file) is 0.28 % but I can't tell you what is the max.

RE: BS 3100 BT1

At that level of C I would preheat and post-weld heat treat as a general rule of thumb.  You can use the carbon equivalent if you have chemistry to help understand weldibility of you component.

Aaron Tanzer
www.lehightesting.com

RE: BS 3100 BT1

(OP)
ok.

Thanks.

RE: BS 3100 BT1

(OP)
Preheating and heat treatment is mandatory. But at that level, i'm very affraid of cracks or lack of fusions. I have to check every weld ultrasonically.

RE: BS 3100 BT1

Use adequate preheat and soak time before welding along with low hydrogen weld electrodes. Selection of PWHT temperature should be based on original heat treatment, if applicable, and remain below the tempering temperature.

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