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Ni-99 (ENi-CI) cast iron

AWS/SFA 5.15 ENi-Cl, AC-DC+
UNS W82001

Washington Alloy Nickel 99 is recommended for all position welding of thin cast iron sections where maximum machinability is required. Since the core wire is approximately 99% nickel, weld deposits are basically
“soft” and can be shaped, milled, drilled, or tapped, while the color will match that of cast iron. Washington Alloy Nickel 99 is specifically suited for repairing cracked or porous castings and to weld cast iron to itself or dissimilar metals such as low alloy and carbon steels.

APPLICATIONS

The weld deposits produced by Washington Alloy Nickel
99 have lower strength and ductility than those of 55% nickel cast iron electrodes. For this reason Washington Alloy Nickel 99 should only be used where maximum machinability of highly diluted weld metal is required or where weld stresses are not overly severe such as found in light and medium-sized castings. Common uses include thin plates, machinery parts, frames, and housings.

TYPICAL WELD METAL CHEMISTRY (%) 

C

0.055

Si

0.46

Mn

0.33

P

0.017

S

0.007

Fe

0.850

Cu

0.160

Ni

Balance

TYPICAL MECHANICAL PROPERTIES OF WELD METAL (as welded)

Tensile strength (psi)

50,000

Yield strength (0.2% offset) (psi)

40,000

Elongation in 2" (%)

3-4%

Brinell hardness

170

SIZES AND RECOMMENDED CURRENT RANGES* (AC/DC+)

 

Sizes

Amperage

3/32 (2.4mm) x 12"

30-70

1/8 (3.2mm) x 14"

70-110

5/32 (4.0mm) x 14"

90-130

3/16 (4.8mm) x 14"

110-160

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