NHF-NiMn

Specification

AWS Specification: AWS A5.13 EFeMn-A
JIS Specification: N/A
Other Specification: N/A

Description

NHF-NiMn is a basic coated electrode that deposits weld metal containing 12 - 14% manganese with approximately 3% nickel
The deposit has a reduced tendency for cracking and heat embrittlement compared to plain 12 - 14% manganese weld metal
Suitable for building up worn 14% manganese steel components

Application

Boring mills
Crushter teeth
Dipper teeth
Rail crossings
Filling up cavities of high manganese cast iron

Remarks

Preheat at more than 300�C followed by slow cooling

Multiple layers should be avoided

A buffer layer with austenitic stainless steel electrode is recommended to prevent peeling of bead

Electrodes should be redried at 200-250�C for 1 hour before use

Technical Data

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

C	Si	Mn	Ni
0.87	0.32	13.90	4.05

HARDNESS OF WELD METAL:

Hardness	Vickers (Hv)	Rockwell
As Welded	200 - 220	91 - 95 HB
Work Hardened	450 - 530	45 - 51 HRC

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

DIAMETER (mm)	3.2	4.0	5.0
LENGTH (mm)	350	400	400
Current Amp	90 - 120	110 - 140	150 - 180

Welding Positions:	FLAT, FILLET, VERTICAL UP, 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.