WP 380
Fused Welding Flux
Beschrijvingen & toepassingen
Specially designed for welding austenitic stainless steels WP 380 is also suitable for welding both low-alloy steels for use at elevated temperatures as well as the combination with austenitic stainless steels. As a result of the semi-basic flux characteristics crackfree welds are obtained for most grades of stainless steels welded with the corresponding wire electrodes. The metallurgical behaviour of the flux is neutral (C-neutral, low Si pick-up and low Mn burn-out) without Cr compensation. It is suitable for welding on DC and AC using single or multi-wire processes and produces smooth weld beads free of slag residuals with flat weld interfaces even in narrow gaps and on preheated work pieces.
Classificatie
| EN 760 (stainless steels) | EN 760 (low alloy steels) |
|---|---|
| SF CS 2 DC | SF CS 1 63 DC |
Richtanalyse (%)
| SiO2 | Al2O3 | CaO+MgO | CaF2 |
|---|---|---|---|
| 30 | 5 | 35 | 20 |
Packaging
20 kg PE-bags
Application Instructions
Joint welding and surfacing of:
-creep-resistant CrMo-steels such as 12CrMo19-5 / A355 Gr. P22-P5 or X20CrMoWV12-1 / A351 for boiler, vessel and pipe fabrication.
-martensitic and ferritic Cr(NiMo)-steels acc. to EN 10088 with the appropriate wire electrodes in conjunction with the corresponding heat treatments.
-austenitic CrNi(Mo)-steels (including ELC-grades) acc. to EN 10088 ; resistant against intergranular corrosion in both the as-welded and solution-treated condition
-high-alloy CrNi(Mo)-steels for use at low temperatures and heat-resistant steels
-high-alloy Cr(NiMo)-steels in combination with low-alloy steels (dissimilar joints)
-nickel-base alloys using NiCr- and NiCrMo- wire electrodes acc. to AWS A5.14 / EN ISO 18274
WP 380 is also suitable for welding 9% Ni-steels in combination with appropriate wire electrodes such as ERNiCrMo-3 (Type 625) and ERNiCrMo-4 (Type 276)
Metallurgical Behaviour
Flux Type
Calcium-Silicate
Flux Density
1.5 kg / dm³
Grain Size
1-16; Tyler 10 x 150
Current-Carrying Capacity
900 A DC using one wire
Storage and redrying
The flux can be stored up to 5 years after delivery in dry storage rooms. Flux that has picked up moisture has to be redried at 150 to 250°C effective flux temperature. Usually, if austenitic stainless steels are to be welded flux redrying can be neglected.