1261 – Machinable Build-up Underlayment

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INTERNATIONAL CLASSIFICATIONS

NONE APPLICABLE TO THIS PROPRIETARY PRODUCT

FEATURES & APPLICATIONS

Build-up and cladding of carbon and low alloy steels. Heavy thicknesses will not crack.

  • Tough build-up alloy for steels offering superior compression and impact resistance.
  • Excellent operation on low voltage AC machines.
  • Deposits easy to machine tough weldments.
  • All position capabilities allows for cladding in position.
  • Straight polarity (DC-) option doubles build-up speed.
  • Also available as a special tubular MIG wire as Product code 7261.
All Weld Metal Analysis (Typical Weight %)

Microstructure: In the as-deposited condition, the microstructure consists of martensite with some carbides.

Flux Color: Dark Grey

CMnSiPSCrNiMoVWCbFe
.29.75.61.012.0161.2.75.14.03.01.01Bal
Typical Mechanical Properties

Undiluted Weld Metal Maximum Value Up to:

Hardness Rockwell C33-38

Brinell 310-350

Vickers 340-380

Welding Current & Instructions

Recommended Current: DC Reverse (+), Straight (-) or AC

Diameter (mm)1/8 (3.25)5/32 (4.0)3/16 (5.0)
Minimum Amperage90120160
Maximum Amperage110140180

Welding Techniques: Remove fatigued metal. Weld deposits can be made using stringer or weave technique. For very high build-ups use DC straight polarity (-).

Welding Positions: Flat, Vertical up, Horizontal, Overhead

Deposition Rates:

Diameter (mm)Length (mm)Weldmetal/ ElectrodeElectrodes per lb (kg) of WeldmetalArc Time of Deposition min/lb (kg)Amperage Settings
1/8 (3.25)14″ (350).59 oz (17g)27 (60)21 (47)115
5/32 (4.0)14″ (350)1.1 oz (30g)15 (32)18 (39)175
3/16 (5.0)14″ (350)1.8 oz (50g)9 (20)13 (28)220
APPROXIMATE ELECTRODE PACKAGING & DIMENSIONS
Diameter (mm)1/8 (3.25)5/32 (4.0)3/16 (5.0)
Length (mm)14″ (350)14″ (350)14″ (350)
Electrodes / lb1286
Electrodes / kg261813