ERNiCrFe-7

Description
ERNiCrFe-7 was developed to meet the changing needs of the nuchear industry, the higher chromium level providing greater resistance to stress-corrosion cracking in the nuclear, pure water environment.

Applications
ERNiCrFe-7 is used for welding high chromium-nickel based alloys such as Inconel 690. ERNiCrFe-7 also can be used for producing corrosion-resistant overlays on low- alloy and stainless steels and for dissimilar. ERNiCrFe-7 can be used in applications requiring resistance to oxidizing acids.

Product Details
Chemical composition

Grade	Chemical composition(%)
ERNiCrFe-7	C	Mn	Si	S	P	Cr	Ni
	≤0.054	≤1.0	≤0.5	≤0.015	≤0.02	28.5~31	Bal
	Al	Cu	Ti	Fe	Others	Nb+Ta
	≤1.1	≤0.3	≤1.0	7~11	＜0.5	≤1.0

 

Welding paramaters

Process	Diameter	Voltage	Amperage	Gas
TIG	.045”     (1.2mm)	13-16	80-110	100% Argon
	1/16”     (1.6mm)	14-18	90-130	100% Argon
	3/32”     (2.4mm)	15-20	120-175	100% Argon
	1/8”      (3.2mm)	15-20	150-220	100% Argon
MIG	.045”     (1.2mm)	28-32	180-220	75% Argon + 25% Helium
	1/16”     (1.6mm)	29-33	200-250	75% Argon + 25% Helium
	3/32”     (2.4mm)	28-30	275-350	Suitable Flux may be used
SAW	1/8”      (3.2mm)	29-32	350-450	Suitable Flux may be used
	5/32”     (4.0mm)	30-33	400-550	Suitable Flux may be used

 

Specifications
AWS A5.14, ERNiCrFe-7 / ASME IX, F-NO. 43 ASME II, SFA-5.14 UNS N06052 ISO SNi6052 Europe NiCr30Fe9