welding wire

welding pipeline,container,petroleum refining equipment,cracker,steel-made reactor etc
Heat resistant steel has creep resistance, oxidation resistance, hydrogen brittleness resistance and corrosion resistance under high temperature. According to chemical composition and microscopic structure, heat resistant steel includes pearlitic steel, martensitic steel, ferrittic steel and austenitic steel. The alloy elements of heat resistant steel mainly have chromium, molybdenum, vanadium, niobium, titanium, tungsten, nickel etc. The existence of these alloying elements makes sure that heat resistant steel has heat resistance and certain corrosion resistance. Heat resistant steel welding wire is mainly used for welding pipeline, container, petroleum refining equipment, cracker, steel-made reactor and heat exchanger etc. under high temperature, high pressure and hydrogen brittleness resistance condition. Its storage and usage matters needing attention is the same as mild steel welding wire, for details see mild steel welding wire explanation.
trade mark
standard
chemical composition%
TIG
AWS
GB
C
Mn
Si
S
P
others
BW-ER50C
-
ER49-1H08Mn2SiA
0.08
1.97
0.72
0.019
0.020.

BW-ER50
ER70S-G
ER50-G
0.08
1.52
0.82
0.009
0.011

BW-ER52
ER70S-2
ER50-2
0.04
1.21
0.56
0.008
0.010

BW-ER53
ER70S-3
ER50-3
0.09
1.25
0.49
0.016
0.013

BW-ER54
ER70S-4
ER50-4
0.09
1.16
0.70
0.012
0.014

BW-ER56
E70S-6
ER50-6
0.08
1.54
0.89
0.012
0.011