Nickel base AWS A5.14 ERNiCr-4 welding wire
ERNiCr-4
INTRODUCTION
WISDOM ERNiCr-4 is a high Chromium-Nickel alloy used for joining, re-pair and overlay cladding of Ni-Cr and Ni-Fe-Cr components. It re-sists high temperature corrosion including fuel-ash corrosion and erosion in atmospheres containing sulfur.
Common Names: FM72M Techalloy 72
Standard: AWS A5.14, ERNiCr-4 / ASME II, SFA-5.14, ERNiCr-4 UNS N06072, Europe NiCr44Ti, ISO SNi6072
CHEMICAL COMPOSITION(%)
C | Si | Mn | S | P | Ni |
≤0.05 | ≤0.2 | ≤2.0 | ≤0.01 | ≤0.01 | Rest |
Cr | Ti | Fe | Cu | others | |
42-46 | 0.3-1.0 | ≤0.5 | ≤0.15 | <0.5 | |
WELDING PARAMETERS
Process | Diameter | Voltage | Amperage | Gas |
TIG | .035" (0.9mm) .045" (1.2mm) 1/16" (1.6mm) 3/32" (2.4mm) 1/8" (3.2mm) | 12-15 13-16 14-18 15-20 15-20 | 60-90 80-110 90-130 120-175 150-220 | 100% Argon 100% Argon 100% Argon 100% Argon 100% Argon |
MIG | .035" (0.9mm) .045" (1.2mm) 1/16" (1.6mm) | 26-29 28-32 29-33 | 150-190 180-220 200-250 | 75% Argon + 25% Helium 75% Argon + 25% Helium 75% Argon + 25% Helium |
SAW | 3/32" (2.4mm) 1/8" (3.2mm) 5/32" (4.0mm) | 28-30 29-32 30-33 | 275-350 350-450 400-550 | Suitable Flux may be used Suitable Flux may be used Suitable Flux may be used |
MECHANICAL PROPERTIES
Tensile Strength | 105,000 PSI | 730 MPA |
Elongation | 30% | |
APPLICATIONS
WISDOM ERNiCr-4 is used primarily for boiler tube overlay in coal fired boiler systems.
WISDOM ERNiCr-4 is used for gas-shielded metal arc welding and tungsten inert gas welding of 50/50 nickel/chromium alloy, overlaying steel, cladding nickel-chromium alloy onto nickel-iron-chromium tubing, and casting repair.
FAQ
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