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1258 – Tubular Large Diameter Chrome Carbide

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INTERNATIONAL CLASSIFICATIONS

NONE APPLICABLE TO THIS PROPRIETARY PRODUCT

FEATURES & APPLICATIONS

General wear protection on all iron base parts subject to abrasion.

  • Large diameter – – low amperage tubular hardfacing electrode.
  • Thin walled tubular construction allows for very low amperages.
  • Base metal dilution is negligible and maximum hardness is achieved rapidly.
  • Quickest non-automated overlaying technique.
  • Special bendable aluminum grip end caps allow for easy gripping and positioning of the electrode.
All Weld Metal Analysis (Typical Weight %)

Microstructure: In the as-welded condition, the microstructure consists of an austenitic alloy matrix (bulk hardness RC57) and chromium/complex carbides (hardness RA 77).

Flux Color: Dark Brown

CNiCrSiSPMnFe
5.4.0840.59.019.0181.7bal
Typical Mechanical Properties

Undiluted Weld Metal Maximum Value Up to:

Hardness Rockwell C 57 – 60

Vickers 665-700

Wear Co-efficient 2 %

Welding Current & Instructions

Recommended Current: DC Reverse (+) or AC

Diameter (mm)1/4 (6.5)3/8 (9.75)1/2 (13.0)
Minimum Amperage80130180
Maximum Amperage125200380

Welding Techniques: Using lowest possible amps, and while holding the electrode 10o from the vertical position, deposit either stringer or weave beads.

Welding Positions: Flat, Horizontal, Vertical up, Overhead

Deposition Rates:

Diameter (mm)Length (mm)Weldmetal/ ElectrodeElectrodes per lb (kg) of WeldmetalArc Time of Deposition min/lb (kg)Amperage Settings
1/4 (6.5)18″ (450)3.1 oz (87g)5 (11)13 (29)100
3/8 (9.75)18″ (450)4.4 oz (128g)3.5 (8)10 (22)175
1/2 (13.0)18″ (450)6.3 oz (176g)2.5 (5.5)8 (18)215
APPROXIMATE ELECTRODE PACKAGING & DIMENSIONS
Diameter (mm)1/4 (6.5)3/8 (9.75)1/2 (13.0)
Length (mm)18″ (450)18″ (450)18″ (450)
Electrodes / lb543
Electrodes / kg1197