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NHF-750LH
AWS Specification: NONE
JIS Specification:

DIN 8555: E10-UM-65 G

Other Specification:

I. APPLICATIONS:

Hardfacing applications on parts subject to mineral abrasion such as conveyor screws, mixer blades, concrete pump parts, stirring and agitator components, slurry pumps, excavator bucket edges etc.

II. DESCRIPTION:

Thick-coated, rutile electrode. Suitable for wear-resistant hardfacing on parts subject to mineral abrasion. Not suitable for impact conditions. Machinable by grinding only. Clean and smooth bead appearance with minimal undercutting. Recovery approx 160%

III. NOTES ON USAGE:

Hold  electrode as vertically as possible, keep a short arc. Preheating is in general not necessary. For multipass-applications a cushion layer with NSS-307 or NHF-Cromang is recommended in order to prevent hardening cracks in the weld deposit. Re-dry electrodes that have got damp for 2h/300ºC

IV. TYPICAL CHEMICAL COMPOSITION OF WELD METAL (%):

 

C

Cr

4.4

35.5

V. HARDNESS OF WELD METAL: 57 – 62 HRC (630 – 750 Hv)

VI. WELDING POSITIONS: FLAT, OVERHEAD, HORIZONTAL

VII. SIZES AVAILABLE AND RECOMMENDED CURRENTS (AC or DC + ):

 

Diameter (mm

3.2

4.0

5.0

Length (mm)

350

350

350

Current Ampere

120-140

170-190

220-250

 

TEST RESULT

The information contained or otherwise referenced herein is presented only as “typical” without guarantee or warranty, and Industrial Welding Corporation expressly disclaims any liability incurred from any reliance thereon. Typical data and Test results for mechanical properties, deposit or electrode composition and other properties were obtained from a weld produced and tested according to prescribed standards, and should not be assumed to be the expected results in a particular application or weldment. Actual results will vary depending on many factors, including, but not limited to, weld procedure, plate chemistry and temperature, weldment design and fabrication methods. Users are cautioned to confirm by qualification testing, or other appropriate means, the suitability of any welding consumable and procedure before use in the intended application.