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