Arc Welding Service

CATEGORY

TYPE

High Chromium electrode for high temperature applications.

APPLICATIONS

Cap layers for joining refractory Cr-Al-Si steels. Cladding corrosion resistant overlays. Cladding heat resistant overlays up to 1150ºC. Cladding components in a sulphurous environment..

PROPERTIES

Ceweld 4820 AC is an AC-weldable fully core-wire alloyed electrode for fabrication and repair welding on equal or similar, corrosion and heat-resistant steels and steel-castings. The weld-deposit is on equal base-material scale-resistant and, by reason of its low nickel-content, resistant against attack of sulphurous gases at higher temperatures up to 1150°C. When welding Ceweld 4820 AC low heat-input is required as alloys of such chemistry are sensitive to embrittlement at 600-800°C. The interpas temperature should not exceed 300°C.

CLASSIFICATION

AWS

A 5.4: ~E 2504-17

EN ISO

3581-A: E 25 5 R 32

DIN: W.Nr.

1.4820

DIN

8556: E 25 4 MP R 23

SUITABLE FOR

W.Nr:
1.4710
1.4745
1.4712
1.4762
1.4713
1.4773
1.4722
1.4776

EN ASTM/ACI
G-X30CrSi6
G-X40CrSi23 TP433
X10CrSi6 502
X10CrAl24 TP443
X10CrAl7 502
X8Cr30
X10CrSi13
G-X40CrSi29

W.Nr:
1.4724
1.4820
1.4729
1.4821
1.4740
1.4822
1.4742
1.4823

EN ASTM/ACI
X10CrAl13 TP405-CA15
G-X12 CrSi 26 5
G-X40CrSi13
X20 CrNiSi 25 4 TP329
G-X40CrSi17
G-X40CrNi 25 4 TP329
X10CrAl18 430B-TP430
G-X40CrNiSi 27 4 TP329HC

APPROVALS

CE approved

WELDING POSITIONS:

WELD DEPOSIT WEIGHT %

C	Mn	Si	Cr	Ni	Mo
0.06	0.7	1.0	25	4.7	-

TYPICAL MECHANICAL PROPERTIES

Heat	R_P0,2	Rm	A5	Impact Energy (J) ISO-V			Hardness
Treatment	(N/mm²)	(N/mm²)	(%)	-20°C	-40°C	-60°C	HB
AW	500	700	20				180

REDRYING TEMPERATURE

1 hr/ 350° C +/- 10°C ( if necessary)

WELDING PARAMETERS / PACKING

Welding Parameters			Packing
D (mm)	Length (mm)	Current (A) DC+/AC	kg / can	kg / 6pack
2.5	300	60-80	2.5	15
3.2	350	80-120	2.5	15
4.0	350	120-150	2.8	16.8