ENiCrFe-2 DMALLOY-A
Class: ENiCrFe-2
AWS: A5.11
DURAMAX ALLOY-A
Conforms to Certification: AWS A5.11 | ASME SFA 5.11
Weld Process: Shielded Metal Arc Weld Process (SMAW)
| AWS Chemical Composition Requirements | |
| C = 0.10 max | Cu = 0.50 max |
| Mn = 1.0 – 3.5 | Ni = 62.0 MIN |
| Fe = 12.0 max | Co = 0.12 max (when specified) |
| P = 0.03 max | Cr = 13.0 – 17.0 |
| S = 0.02 max | Nb/Ta = 0.5 – 3.0 |
| Si = 0.75 max | Mo = 0.50 – 2.50 |
Please contact us for more information and availability
Application
DURAMAX ALLOY-A ENiCrFe-2 has a nominal composition (wt.-%) of 70 Ni, 15 Cr, 8 Fe, 2 Mn, 2 Nb + Ta, 1.5 Mo. Electrodes of this classification are used for welding nickel-chromium-iron alloys, 9% nickel steel, and a variety of dissimilar metal joints (involving carbon steel, stainless steel, nickel, and nickel-base alloys). The base metals can be wrought or cast (welding grade), or both. The electrodes may be used for applications at temperatures ranging from cryogenic to around 1800°F. However, for temperatures above 1500°F, weld metal produced by DMALLOY-A does not exhibit optimum oxidation resistance and strength. Typical specifications for the nickel-chromium-iron base metal are ASTM B 163, B 166, B 167, and B 168, all of which have a UNS Number of N06600.
DMALLOY-A provides excellent results over a wide range of general fabrication welding requirements, especially those in harsh service environments.
| Deposited Chemical Composition % (Typical) | ||
| C = 0.034 | Mn = 2.35 | Fe = 8.67 |
| P = 0.01 | S = 0.01 | Si = 0.27 |
| Cu = 0.026 | Ni = 70.09 | Cr = 16.6 |
| Nb + Ta = 0.76 | Mo = 0.98 | TOE =<0.50 |
| Deposited All Weld Metal Properties % (AW) | |
| Tensile Strength | 590 MPa |
| Yield Strength | —– |
| Elongation | 40% Min |
Deposited Charpy-V-Notch Impact Properties %
Not applicable
Recommended Weld Parameters |
Amperage (A) |
||
| Diameter of Wire | Voltage (V) | Flat | Vertical and Overhead |
| 3/32 inches (2.4mm) | 20 – 23 | 70 – 80 | 65 – 80 |
| 1/8 inches (3.2mm) | 21 – 24 | 80 – 110 | 75 – 95 |
| 5/32 inches (4.0mm) | 22 – 25 | 120 – 160 | Not recommended |
| 3/16 inches (4.8mm) | 23 – 25 | 170 – 190 | Not recommended |