Boron steel - welding
Boron steel - welding
(OP)
Hello,
I would like to ask you for your opinion.
I have a high strength low alloy chain steel (0,2-0,25% C, 1% Ni, 0,5% Mo, 0,5%Cr) with addition of boron (0,002-0,0035%). For the suppression of boron nitride precipitation is this steel sufficiently titan treated (nitrogen about 0,006%).
So, there is a problem with welding this steel together. It is used a flash-butt welding and this steel is tested after a heat treatment (quenching and annealing). And after a heat treatment a majority of welded chain links disrupted at weld joint. The fracture is clear brittle.
What do you think, could be this problem caused by presence of boron (in spite of titan treating)?
Thank you for any answer
I would like to ask you for your opinion.
I have a high strength low alloy chain steel (0,2-0,25% C, 1% Ni, 0,5% Mo, 0,5%Cr) with addition of boron (0,002-0,0035%). For the suppression of boron nitride precipitation is this steel sufficiently titan treated (nitrogen about 0,006%).
So, there is a problem with welding this steel together. It is used a flash-butt welding and this steel is tested after a heat treatment (quenching and annealing). And after a heat treatment a majority of welded chain links disrupted at weld joint. The fracture is clear brittle.
What do you think, could be this problem caused by presence of boron (in spite of titan treating)?
Thank you for any answer





RE: Boron steel - welding
The following link may give you a clue:
RE: Boron steel - welding
RE: Boron steel - welding
RE: Boron steel - welding
RE: Boron steel - welding
Effect of residual boron on the microstructure of low-carbon steel resistance-seam welds
ht
Hope this will help