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.