1265 – Smooth Overlay RC 66 to 68

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INTERNATIONAL CLASSIFICATIONS

DIN 8555: E10-UM-65-G

FEATURES & APPLICATIONS

For conveyor screws, mixer blades, pump and crusher parts operation in sand, clay, cement, and coal.

  • For abrasion resistance and moderate impact resistance.
  • Basic coated SMAW electrode for hardsurfacing.
  • Good for severe abrasion and moderate impact resistance.
  • Suitable up to 500° C.
  • 120% Recovery.

 

All Weld Metal Analysis (Typical Weight %)

C Mn Si Cr Mo Fe
4.3 0.4 0.7 10.2 1.9 Bal.

 

Typical Mechanical Properties

Undiluted Weld Metal                   Maximum Value Up to:

Structure                                        Martensitic cast iron

Hardness                                        1 layer 59 HRc

2 layers 61 HRc

3 layers 65 HRc

4 layers 67 HRc

Wear Coefficient                             2% (SiO2 as abrasive)

Machinability                                 Grinding only

 

Welding Current & Instructions

Recommended Current: DC Straight (-), AC

Diameter (mm)

1/8 (3.25)

5/32 (4.0)

3/16 (5.0)

Minimum Amperage

85

115

150

Maximum Amperage

120

150

190

Welding Techniques: Select the minimum required amperage and utilize a medium arc gap. For smooth flat welds use a 3 x weave. There is minimal slag which can be overwelded without prior removal. Only 2 passes are required for developement of the full benefits of this alloy. Cross crack stress relieving is normal.

Welding Positions: Flat, Horizontal, Half up

Deposition Rates:

Diameter (mm)

Length (mm)

Electrodes per lb (kg) of Weldmetal

Arc Time of Deposition min/lb (kg)

1/8 (3.25)

14″ (350)

19 oz (43g)

41 (90)

5/32 (4.0)

14″ (350)

12 oz (27g) 27 (60)

3/16 (5.0)

14″ (350)

8 oz (18g)

19 (42)

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

10

9

Electrodes / kg

26

22

20

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