MOST EL-Co 21

Description

Cobalt-based electrode for hardfacing and regeneration of elements exposed to metal-to-metal abrasive wear and pressure up to temperature of 950°C . Extremely hard after work hardening.

Application: Tools for both hot and cold forging and shaping, parts of gas turbines, etc.

Classification

DIN 8555: E 20-UM-350 CKTZ
PN-EN 14700: ECo
2-300-CTZ

Welding current

Welding position

Features

Hardness:
32–38 HRC (20°C)
38–40 HRC (600°C)
42–45 HRC (after cold work)

Chemicals compoisition [%]

C=0,25; Si=1,0;
Ni=2,5; Fe=max 3,0;
Mn=1,0; Mo=5,5;
Cr=27,0; Co=rest;

Diameter

3,2 mm
4,0 mm
5,0 mm