Exaton 16.5.1

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16.5.1 is a filler material for joining EN 1.4418 and similar steels. It is also used for overlay welding. The weld metal has excellent resistance to cavitation and is used typically for shafts, propellers, pumps and valves in for example, hydropower generation.

Typical Charpy V-Notch Properties

Impact Value 59 ft-lb
Impact Value 80 J
Shielding Gas PWHT 590 Deg C, 4 h
1094 °F
590 °C
4 hr
Testing Temperature 68 °F
Testing Temperature 20 °C

Typical Tensile Properties

ConditionElongationShielding GasTensile Strength Testing Temperature Testing TimeYield Strength
PWHT22 %PWHT 590 Deg C, 4 h850 MPa (123 ksi)590 degC (1094 degF)4 hr470 MPa (68 ksi)


Grade W 16 5 1
Name EN ISO 14343-A


Grade EN13479
Society CE
Approvals are based on factory location. Please contact ESAB for more information.

Consumable Characteristics

Alloy Type Austenitic/Martensitic/Ferritic - 16% Cr - 5% Ni - 1% Mo - Low C
Shielding Gas I3 (EN ISO 14175)

Typical Weld Metal Analysis %

Typical Wire Composition %
Al C Co Cr Cu Mn Mo N Nb Ni P S Si Ti V
0.006 % 0.01 % 0.03 % 16.2 % 0.01 % 1.4 % 1.0 % 0.02 % 0.01 % 5.5 % 0.015 % 0.009 % 0.3 % 0.01 % 0.04 %

CORROSION RESISTANCE: The weld deposit is resistant to scaling in air up to 850 °C (1560 °F).
Its pitting and general corrosion resistance is comparable to EN 1.4306, ASTM 304.

The parameters for TIG welding depend largely upon the base metal thickness and the welding application.
Electrode negative and a shielding gas of argon or helium should be used to prevent oxidation of the weld metal.

WELD METAL CHARACTERISTICS: Martensitic/austenitic microstructure with a ferrite content of 12 FN.


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Part Numbers and Accessories

Part Numbers : Exaton 16.5.1