C9MV

LOW ALLOYED WELDING WIRES

SFA-AWS A5.28 ER90S-B9
EN ISO 21952-A- G/W CrMo9 1
Average Chemical analysis
C% Si% Mn% P% S% Cu% Cr% Ni% Mo% Al% V% N% Nb%
0,090 0,30 0,50 < 0,010 < 0,010 <0,20 9,10 0,50 0,90 < 0,040 0,20 0,05 0,07
The copper value include the surface coating
Typical mechanical properties of all-weld metal
Rm Rs Al Kv
N/mm² N/mm² %5d +20°C
780 690 21 150 J
The mechanical properties are approximate and may range on the basis of the Heat, shielding gas, welding parameters and other factors
Welding process
Protection MIG: Argon/ 5% O2 / TIG: I1 (Argon)
Current and polarity MIG: DC+ / TIG: DC-
Welding positions EN ISO 6947: PA, PB, PC, PD, PE, PF, PG
Pre Heating temperature 205-320° C
Interpass temperature 205-320° C
Post Welding Heat Treatment 760 ± 15° C
Dimensions
MIG (mm) 0,60 - 0,80 - 0,90 - 1,00 - 1,14 - 1,20 - 1,40 - 1,60
TIG (mm) 1,00 - 1,20 - 1,60 - 2,00 - 2,40 - 3,00 - 3,20 - 4,00
Base materials to be welded X10CrMoVNb9-1; X12CrMo9-1; A335: P91, A213: T91, A387: 91, A182: F91, X 20CrMoV12-1
Applications

The addition of V and Nb increases the resistance to strain, corrosion and heat oxidation. Excellent resistance to creep and hydrogen. Suitable for thermoelectrical power plants, turbine rotors, petrolchemical plants.

Approvals Contact ITALFIL
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