Single layer electroslag strip cladding of alloy 316L and 317L
1. Alloy 316L
Among the Cr-Ni stainless steel alloys, alloy 316L is one of the most widely used in the chemical and offshore industry.
For economic reasons, it is evident that single layer solutions are preferable and this can only be achieved by the use of the electroslag strip cladding process.
Today, Soudokay can offer two different, unalloyed electroslag fluxes allowing to reach the 316L chemical analysis in a single layer in combination with Soudotape 21.13.3L welding strip. The two solutions are summarized in the next table
Both solutions offer a high quality deposit with an excellent wettability and smooth overlapping.
The <high speed> solution with Record EST 136 is recommendable while:
- Deposition rate increases with ±20%
- Surface coverage (m2/h) increases with ±35%
- Consumption of consumables decreases with ±20%
2.Alloy 317L
This modified 316L alloy can be achieved by the use of Record EST 122Mo and Soudotape 21.13.3L.
Record EST 122Mo is a Mo-alloyed flux in order to guarantee min. 3% Mo in the single layer deposit.
It is of course of outmost importance to make a 3/16 inch deposit in order to guarantee a Mo-content of 3% in the deposit.
3. Conclusions
The single layer deposits of 316L and 317L offer maximum results with minimum overlay thickness and is achieved by using our special strip, Soudotape 21.13.3L and electroslag cladding Record EST122 and Record EST122Mo.
1 comment:
The ferrite content problem is there which is always required to be between 3-10.
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