AWS welding wire Hastelloy c-276 ERNiCrMo-4
INTRODUCTION
ERNiCrMo-4 is used for gas-tungsten-arc and gas-metal-arc welding of Inconel alloy C-276 and other nickel-chromium-molybdenum alloys. Due to high molybdenum content, this alloy offers excellent resistance to stress corrosion cracking and pitting and crevice corrosion.
Common Names: C-276 FM C-276 Techalloy 276
Standard: AWS A5.14, ERNiCrMo-4/ ASME II, SFA-5.14,UNS N10276 Werkstoff Nr. 2.4886 ISO SNi6276 Europe NiCrMo16Fe6W4
CHEMICAL COMPOSITION(%)
| C | Si | Mn | S | P | Ni | Co |
| ≤0.02 | ≤0.08 | ≤1.0 | ≤0.03 | ≤0.04 | Rest | ≤2.5 |
| W | V | Fe | Cu | Cr | Mo | others |
| 3.0-4.5 | ≤0.35 | 4.0-7.0 | ≤0.5 | 14.5-16.5 | 15-17 | <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 | 114,500 PSI | 790 MPA |
| Yield Strength | 85,000 PSI | 590 MPA |
| Elongation | 27% | |
APPLICATIONS
- ERNiCrMo-4 of its high molybdenum content it offers excellent resistance to stress corrosion cracking, pitting, and crevice corrosion, thus it is often used for cladding.
- ERNiCrMo-4 offen used for groove welding of 9% nickel steels in the production of LGN storage tanks.
- ERNiCrMo-4 also can be used for welding of materials of similar chemical composition, as well as dissimilar material of nickel base alloys, steels and stainless steels.
