COROLIT® E 21

CLASSIFICATION

DIN EN 14700
E Co1

GENERAL CHARACTERISTICS

AC-weldable hardfacing electrode with an alloyed core and a recovery of 160 %. The deposit is a cobalt base alloy of high tenacity as well as extreme corrosion and heat resistance. The weld metal is highly resistant to impact and is work-hardening up to 45 HRC.
Working temperature should be kept between 400° and 600°C, depending on base material and type of construction. Slow cooling, if necessary oven cooling, is recommended for low alloyed and austenitic steels. Subsequent heat treatment (stress relief at 700°C approx.) is not necessary, except on large structures.

APPLICATION

Hardfacing of cutting edges of long knifes and other tools used in the wood, plastic, paper, carpet and chemical industry.

TYPICAL ALL WELD METAL ANALYSIS (%):

TYPICAL ALL WELD METAL MECHANICAL PROPERTIES

Hardness: 300 - 330 HB
Work hardened: 45 HRc

CURRENT

= + / ~ 42 V

WELDING POSITIONS

PA, PB, PC

REBAKING

1 h, 350 °C + / - 10 °C (if required)

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