BÖHLER FOX DMV 83 Kb伯乐焊条

BÖHLER FOX DMV 83 Kb伯乐焊条

Description
Basic coated core wire alloyed stick electrode with special suitability for 14MoV6-3
(1/2 Cr 1 Mo) steels. Approved in long- term condition up to +580 °C service temperature.
Crack resistant and ductile deposit, low hydrogen content. Good weldability in all positions
except vertical down. metal recovery approx. 115 %.
Approvals and Certificates
TÜV-D (1094.), TÜV-A (119), UDT, SEPROZ
Same Alloy Filler metals
GTAW rod: DMV 83-lG
GMAW solid wire: DMV 83-IG
base Materials
similar alloyed high temperature steels and cast steels
1.7715 14MoV6-3, 1.7733 24CrMoV5-5, 1.7709 21CrMoV5-7, 1.8070 21CrMoV5-11,
1.7706 G17CrMoV5-10,
ASTM A389 Gr. C23 a. C24; A405 Gr. P24; UNS I21610
Operating Data
re-drying if necessary: ø mm L mm amps A
300 - 350 °C, min. 2 h 2.5 250 70 - 100
electrode identification: 3.2 350 110 - 140
FOX DMV 83 Kb 9018-G E MoV B 4.0 350 140 - 180
Preheating and interpass temperatures 200-300 °C. Post weld heat treatment at 700-720 °C
for at least 2 hours followed by cooling in furnace down to 300 °C and still air.
Mechanical Properties of All-weld metal
(*) a v
yield strength R e N/mm 2 :  510 (≥ 470) 410 (≥ 380)
tensile strength R m N/mm 2 :  660 (≥ 610) 580 (≥ 540)
elongation A (L 0 = 5d 0 ) %:  22 (≥ 320) 26 (≥ 324)
impact work ISO-V KV J + 20 °C: 200 (≥ 110) 150 (≥ 110)
(*)  a annealed 720 °C/2 h/furnace down to 300 °C/air
v quenched/tempered 940 °C/0.5 h/oil + 730 °C/0.5 h/furnace down to 300 °C/air
Typical Composition of All-weld metal
C Si Mn Cr Mo V
wt-% 0.05 0.4 1.1 0.4 0.9 0.5