Type
High-alloyed tubular wire for head resistant Steel. (Typ 25 4, 1.4820),
classification
EN ISO
17633-A: TZ 25 4 M M21 1
W.Nr.
1.4820
Applications

CEWELD AA 4820 is for welding cap layers for joining refractory Cr-Al-Si steels. Cladding corrosion resistant overlays. Cladding heat resistant overlays up to 1100ºC. Cladding components in a sulphurous environment.

Type
High-alloyed tubular wire for head resistant Steel. (Typ 25 4, 1.4820),
Applications

CEWELD AA 4820 is for welding cap layers for joining refractory Cr-Al-Si steels. Cladding corrosion resistant overlays. Cladding heat resistant overlays up to 1100ºC. Cladding components in a sulphurous environment.

Properties

Higher productivity, higher deposition rates and improved wetting properties compared to solid wires with comparable analysis. Excellent weld metal quality and X-ray soundness. When welding, care should be taken to minimize the heat input, because materials of this composition have a tendency to embrittle in the temperature range of approx. 600-800° C. The interpass temperature should not exceed 300° C. Therefore, the interpass temperature should not exceed 300°C.

Classification
EN ISO
17633-A: TZ 25 4 M M21 1
FM
5
W.Nr.
1.4820
Suitable for

1.4340, 1.4710, 1.4745, 1.4746, 1.4712, 1.4762, 1.4713, 1.4773, 1.4722, 1.4776, 1.4724, 1.4820, 1.4729, 1.4821, 1.4740, 1.4822, 1.4742, 1.4823

GX40CrNi27-4, G-X30CrSi6, G-X40CrSi23, X10CrSi6 502, X10CrAl24, X10CrAl7, X8Cr30, X10CrSi13, G-X40CrSi29, X8CrTi25, X10CrAl13, G-X12 CrSi 26 5, G-X40CrSi13, X20 CrNiSi 25 4, G-X40CrSi17, G-X40CrNi 25 4, X10CrAl18, G-X40CrNiSi 27 4,

AISI 327, 442, 446, ASTM A 297 HC

UNS S44200, 44600, J92605, J93005, J92605 

Welding positions
PA
PB
PC
PD
PE
PF
Redrying
Not required
Gas acc. EN ISO 14175
M21
Analysis
C Si Mn P S Cr Ni Mo N Cu Nb+Ta
0.08 1 0.7 25 4.6 0.25
Mechanical Properties
Heat
Treatment		 RP0,2
(MPa)		 Rm
(MPa)		 A5
(%)		 Hardness
As Welded >450 >650 >15 94 HB
Product sheet
declaration of conformity
SDS
Product sheet
Ask quotation
SDS