NHF-750LH

Specification

AWS Specification: N/A
JIS Specification: N/A
Other Specification: DIN 8555: E10-UM-65-G

Description

NHF-750LH is a thick-coated rutile electrode suitable for wear-resistant hardfacing on parts subject to mineral abrasion
Clean and smooth bead apperance with minimal undercutting

Application

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

Remarks

Hold electrode as vertically as possible

Keep a short arc

Preheating is not necessary

For multi-pass 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 got damp for 2 hours at 300�C

Machinable by grinding only

Not suitable for impact conditions

Technical Data

TYPICAL CHEMICAL COMPOSITION OF ALL WELD METAL DEPOSITS (%):

C	Cr
4.40	35.50

HARDNESS OF WELD METAL:

Hardness	Vickers (Hv)	Rockwell (H_RC)
Value	630 - 750	57 - 62

SIZE AND RECOMMENDED CURRENT RANGE: AC, DC (+)

DIAMETER (mm)	3.2	4.0	5.0
LENGTH (mm)	350	350	350
Current Amp	120 - 140	170 - 190	220 - 250

Welding Positions:	FLAT, OVERHEAD, HORIZONTAL
Approvals:	N/A

NOTE:

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.