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

welding wire