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

C Mn Si P S Cr Ni Mo V W Cb Fe
.29 .75 .61 .012 .016 1.2 .75 .14 .03 .01 .01 Bal

 

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 Amperage

90

120

160

Maximum Amperage

110

140

180

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/ Electrode

Electrodes per lb (kg) of Weldmetal

Arc 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 / lb

12

8

6

Electrodes / kg

26

18

13

 

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