Type
Rutile flux cored stainless steel welding wire for M21 and Co2 gas. ( Type 25 20 )
classification
AWS
A 5.22: E310T0-1
A 5.22: E310T0-4
EN ISO
17633-A: T 25 20 R C1 3
17633-A: T 25 20 R M21 3
W.Nr.
1.4842
Applications

Common applications include industrial furnaces, annealing chambers, fused salt treatment installations and boiler parts, as well as heat exchangers

Type
Rutile flux cored stainless steel welding wire for M21 and Co2 gas. ( Type 25 20 )
Applications

Common applications include industrial furnaces, annealing chambers, fused salt treatment installations and boiler parts, as well as heat exchangers

Properties

For welding heat-resistant austenitic steels of the 25% Cr, 20% Ni types. AA 310 has good general oxidation resistance, especially at high temperatures, due to its high Cr content. The alloy is fully austenitic and is therefore sensitive to hot cracking. The temperature limits for use under intermittent oxidation depend on cycle frequency. In no case shall a temperature of 1000°C be exceeded. This alloy can withstand relatively severe thermic shock, and is superior to type 309L.

Classification
AWS
A 5.22: E310T0-1
A 5.22: E310T0-4
EN ISO
17633-A: T 25 20 R C1 3
17633-A: T 25 20 R M21 3
F-nr
6
FM
5
W.Nr.
1.4842
Suitable for

ISO 15608: 8.1  Austenitic ≤ 19 % Cr , TÜV 1000: Gr. 21-30,  Type: 25% Cr, 22%Ni 

1.4710, 1.4713, 1.4724, 1.4726, 1.4742, 1.4745, 1.4762, 1.4823, 1.4826, 1.4828, 1.4832, 1.4835,1.4837, 1.4840, 1.4841, 1.4845, 1.4846, 1.4848, 1.4849, 253MA,

X15CrNiSi 25 20, G-X40CrNiSi 25 12, G-X15CrNi 25 20, X8CrNi25-21

AISI 305, 310, 314 ASTM A297 HF / A297HJ 

Approvals
CE
Welding positions
PA
PB
PC
PF
Redrying
140°C / 24 hr
Gas acc. EN ISO 14175
M21, C1
Analysis
C Si Mn P Cr Ni Mo N Cu Nb+Ta S
0.18 0.6 2.1 0.015 25.5 21 0.015
Mechanical Properties
Heat
Treatment
RP0,2
(MPa)
Rm
(MPa)
A5
(%)
Impact Energy (J) ISO-V Hardness
RT
As Welded 410 600 35 75 HRc