ENICRMO-14 DM686CPT

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Class: ENiCrMo-14
AWS: A5.11

DURAMAX 686CPT CTD ELECTRODE

Conforms to Certification: AWS A5.11 | ASME SFA 5.11

Weld Process: Shielded Metal Arc Weld Process (SMAW)

AWS Chemical Composition Requirements
C = 0.02 max Cu = 0.50 max
Mn = 1.0 max Ni = Remainder
Fe = 5.0 max Ti = 0.25 max
P = 0.02 max Cr = 19.0 – 23.0
S = 0.02 max Mo = 15.0 – 17.0
Si = 0.25 max W = 3.0 – 4.4
Other = 0.50 max

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Application

DURAMAX 686CPT is an all-position shielded-metal-arc welding electrode used to join duplex, super-duplex and super-austenitic stainless steels, as well as nickel alloys such as UNS N06059 and N06022, and nickel-chromium-molybdenum alloys that are used in severe corrosion applications where resistance to reducing, oxidizing, crevice and pitting conditions is required. It is recommended for corrosion-resistant overlay cladding of iron based metals for the same conditions. DM686CPT used for welding operations in pollution control engineering environments as well as the chemical, process, petrochemical, oil and gas, and marine industries. The electrodes provide excellent operability for groove and fillet welding in the downhand position and the smaller diameter electrodes are also suitable for all position welding.

 

Deposited Chemical Composition % (Typical)
C = 0.005 Mn = 0.17 Fe = 0.69
P = 0.003 S = 0.001 Si = 0.03
Cu = 0.01 Ni = 57.69 Ti = 0.01
Cr = 20.96 Mo = 16.33 W = 3.91
TOE = <0.50
Deposited All Weld Metal Properties % (AW)
Tensile Strength 690 N/mm2
Yield Strength
Elongation 30% 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