SMAW Electrodes
AMA 1609G
-
~ E NiCrFe–2
AWS/ASME SFA – 5.11: -
EL–NiCr 15 FeNb
DIN 1736 : -
2.4805
Material number :
Application/properties:
Basic-covered electrode with 69% Ni and 16% Cr and 8% Fe for the welding of:
-Heat and corrosion resistant nickel alloys, e.g. NiCr 15Fe(2.4816), LC-NiCr15Fe(2.4817), or for joining these alloys to unalloyed, low alloy and high-alloy steels; good cryogenic properties down to -196°C; heat resistant up to +800° C, and austenitic steels to ferritic steels for operation temperatures above 300° C.
-Owing to high toughness properties and resistance to cracking, it is well suited for joining difficult-to-weld steels and for repair welding.
Weld metal analysis in % (typical values):
| C | Si | Mn | Cr | Ni | Mo | Nb | Fe | S | P |
|---|---|---|---|---|---|---|---|---|---|
| 0.04 | 0.3 | 2 | 16 | Base | 1.4 | 1.8 | 8.5 | <0.015 | <0.02 |
Mechanical Properties of all-weld metal:
(single values are typical values)
| Tensile Strength ( N/mm 2 ) | Yield Strength ( N/mm 2 ) | Elongation A5 (%) | Impact energy(j) ISO - V 20°C -196°C+ |
|---|---|---|---|
| 640 | 360 | 40 | 85 75 |
| Welding Parameters | ||
|---|---|---|
| Diameter (mm) | Length (mm) | Amperage (A) |
| 2.5 | 300 | 60– 85 |
| 3.25 | 350 | 80– 110 |
| 4.0 | 350 | 100– 140 |
Rebaking:
required at 300°C to 350°C for 2 hours.
