NHF-43

Specification

AWS Specification: N/A
JIS Specification: N/A
Other Specification: N/A

Description

NHF-43 is a chromium carbide hardsurfacing electrode with deposition rate of 190%
Suited for parts subject to heavy abrasion and metal-to-metal wear with moderate impact
Easy to weld in horizontal-vertical positions
Weld deposit can retain its properties at temperature not exceeding 450ºC

Application

Crusher parts
Refractory press screws
Cement press screws
Palm nut press screws
Coconut press screws

Remarks

Preheat at 150�C and over in general

In case of multi-layer build-up welding and welding mother plates with hardening property, under-lay with low hydrogen type electrodes for mild steel

Dry the electrodes at 300-350�C for 30-60 minutes before use

Clean weld area properly before welding

Keep a medium long arc

Oscillation of the electrode with an amplitude up to 3-4 times the nominal diameter results in a very regular and smooth bead

The full properties of the alloy is obtainable in two layer deposits

Technical Data

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

C	Si	Cr	Nb	Mn
6.50	1.50	23.00	7.50	0.85

HARDNESS OF WELD METAL:

Hardness	Vickers (Hv)	Rockwell (H_RC)
Value	700 - 780	60 - 63

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

DIAMETER (mm)	3.2	4.0	5.0	6.0
LENGTH (mm)	350	400	400	450
Current Amp	90 - 130	140 - 180	190 - 240	220 - 300

Welding Positions:	FLAT, FILLET, 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.