Description
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. It can equivalent to: FM72M Techalloy 72.
Applications
High Chromium Nickel alloy used for joining, repair and overlay cladding of Ni-Cr and Ni-Fe-Cr components. Material is resistant to high temperature corrosion including fuel-ash corrosion and erosion in atmospheres containing sulpher. This material is primarily used for boiler tube overlay in coal fired boiler systems.
Product Details
Chemical composition
| Grade |
Chemical composition(%) |
| ERNiCr-4 |
C |
Si |
S |
Mn |
P |
Ni |
| ≤0.05 |
≤0.2 |
≤0.01 |
≤2.0 |
≤0.01 |
Bal |
| Cr |
Ti |
Cu |
Fe |
Others |
|
| 42~46 |
0.3~1.0 |
≤0.15 |
≤0.3 |
<0.5 |
|
Mechanical properties
| Tensile Strength |
Yield Strength |
Elongation |
| 730Mpa |
Mpa |
30% |
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 |
| SAW |
3/32" (2.4mm) |
28-30 |
275-350 |
Suitable Flux may be used |
| 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, ERNiCr-4 / ASME II, SFA-5.14, ERNiCr-4 UNS N06072, Europe NiCr44Ti, ISO SNi6072
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