Stick electrode WN.1.7339, MT-CrMo 1 Size: 5.0 mm Ø, 450 mm long, welding current: 220 - 250 A, PU = 52 pieces / 5.4 kg
Fig. may deviate
Description
Basic coated stick electrode for welding creep resistant andhydrogen pressure resistantsteels. Weld metal made of chromium- molybdenum-containingsteelforoperating temperaturesup to+550°C.
DIN 8575: E CrMo 1 B 20+, AWS/ASME SFA-5.5: E 8018 - B 2, B.S. 2493: E 1 CrMo B 26, NF A 81 - 345: E 1 CrMo B 26 2 H, EN 1599: E CrMo 1 B 42.
Special notes
Preheat temperature +200 to +350°C; interpass temperature max. 350°C;
Heat treatment after welding: at least 1/2 h at 660 - 700°C,
Cooling in still air. After tempering, the weld metal is resistant to intergranular stress corrosion cracking (caustic cracks).
Re-drying
1 h at 300°C
Welding positions according to DIN EN ISO 6947
PA, PB, PC, PD, PE, PF