CEWELD


DUR 21 FCAW Flux-Cored




DUR 21

 
CATEGORY 
TYPE 
Cobalt based fluxcored wire for cladding against metal to metal wear, thermal schock and erosion.
APPLICATIONS 
Solving wear problems against chemicals, erosion, corosion, high temperatures, abrasion and combinations of those.
PROPERTIES 

Excellent gliding properties against metal to metal wear due to low friction, Excellent against erosion and corrosion at high working temperatures upto 900°C. Crack free hard facing deposit against severe shock and impact.

CLASSIFICATION
AWS 
A 5.21: ERC CoCr-C
EN ISO 
14700: T Co1
DIN 
8555: MF 20-GF-300-CTZ
SUITABLE FOR 

Cladding seats and valves in chemical industry, hot sharing blades, extrusion parts, coke hammers, turbine injectors, gas and steam turbine parts.

APPROVALS 
CE approved
WELDING POSITIONS: 
FILLER METAL ANALYSIS % (TYPICAL VALUES)

C

Mn

Si

Cr

Ni

Mo

Fe

Co

   

0.27

1.0

1.25

28

1.5-4.0

5.0

3.5

Bal.

   
MECHANICAL PROPERTIES

Heat

RP0,2

Rm

A5

Impact Energy (J) ISO-V

Hardness

Treatment

(N/mm2)

(N/mm2)

(%)

-20°C

-40°C

-60°C

HRc / HB

As welded

           

30 HRc

At 300°C

           

280 HB

Work hardened

           

45 HRc

REDRYING TEMPERATURE 
150°C / 24 hr
WELDING PARAMETERS / PACKING

Welding Parameters

Packing

D (mm)

Voltage (V)

Current (A)

spool type

kg / spool

1.2

19-22

120-220

S-300

15

1.6

20-26

160-260

S-300

15

2.4

24-28

260-340

S-300 / K-415

15 / 25







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