- Hardfacing Electrodes - COBALTHARD 12FC

PHiLARC Products

Certification of Quality

COBALTHARD 12FC

AWS Speicication:AWS A5.13 ECoCr-B

Jis Specification:NONE

DIN Specificvation: DIN 8555 : E20-UM-50-CSTZ

I. APPLICATIONS:

Hard surfacing of valve sleeves of high pressure pump, cutting knives, liner sleeves, valve seats and dies, etc.

II. DESCRIPTION :

COBALTHARD 12FC Covered electrode develop high hardness and abrasion resistance and good corrosion resistance. These properties make COBALTHARD 12FC the choice for wood cutting saws and bars and for industrial cutting applications for carpet, plastics, papers, and chemical industries. It is non- forgeable and can be machines with difficulty using carbide tools. COBALTHARD 12FC bonds well to all weldable-grade steels, including stainless.

III. NOTES ON USAGE:

Preheat at 300ºC and over in general. Use PHILARC temperature indicating sticks or PHILARC interpass temperature gauge to determine if proper temperature is achieve before welding. For more details see PHILARC Chart 4 Easy Steps for welding.
It is effective to postheat at 600ºC and to slow cool after welding to prevent cracking.
Dry the electrodes at 150-200ºC for 30 – 60 minutes before use. Use PHILARC portable drying ovens.

IV. HARDNESS OF WELD DEPOSIT: 42 – 48 HRC (410 – 490 Hv)

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

C	Si	Mn	Cr	W	Co
1.43	0.56	0.98	31.62	8.67	Balance

VI. WELDING POSITIONS: FLAT, VERTICAL UP, OVERHEAD

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

Size	Dia	3.2	4.0	5.0
(mm)	Length	350	350	350
Current Range		90-120	110-150	140-180

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.

philarc-cobalthard 12fc.pdf