Stick electrode WN.1.7339, MT-CrMo1 Size: 2.5 mm Ø, 350 mm long, welding current: 70 - 90 A, PU = 170 pieces / 3.2 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