ENiCrFe-3 DMNA182

Class: ENiCrFe-3
AWS: A5.11

DURAMAX    NA182

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 = 5.0 – 9.5 Ni = 59.0 MIN
Fe = 10.0 max Co = 0.12 max (when specified)
P = 0.03 max Ti = 1.0 max
S = 0.015 max Cr = 13.0 – 17.0
Si = 1.0 max Nb/Ta = 1.0 – 2.5
Other = 0.50 max

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Application

DURAMAX NA182 (ENiCrFe-3) has a nominal composition (wt.-%) of 65 Ni, 15 Cr, 8 Fe, 7.5 Mn, 2 Nb + Ta. Electrodes of this classification are used for welding nickel-chromium-iron alloys, for welding the clad side of joints on steel clad with nickel-chromium- iron alloy and for surfacing steel with nickel-chromium-iron weld metal, when comparatively high manganese contents are not detrimental. The electrodes may be used for applications at temperatures ranging from cryogenic
to around 900°F. These electrodes can also be used for welding steel to other nickel-base alloys. DMNA182 is designed for welding in harsh, corrosive environments, such as desalination plants, petrochemical facilities and power generation plants, and in temperature critical conditions, such as furnace equipment and pipe work.

Deposited Chemical Composition % (Typical)
C = 0.038 Mn = 6.09 Fe = 8.52
P = 0.018 S = 0.004 Si = 0.48
Cu = 0.001 Ni = 68.20 Ti = 0.08
Cr = 14.99 Nb +Ta = 1.44 TOE = <0.50
Deposited All Weld Metal Properties % (AW) 
Tensile Strength 550 N/mm2 Min
Yield Strength 370 N/mm2
Elongation 30% Min
CVN @ -196°C 60 – 90 J

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