C9MV

LOW ALLOYED WELDING WIRES

Classifications

SFA-AWS A5.28 ER90S-B9
EN ISO 21952-A- G CrMo9 1
EN ISO 21952-A- W CrMo9 1

Process

GAS MIG TIG A.S.

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.

Base materials to be welded

X10CrMoVNb9-1; X12CrMo9-1; A335: P91, A213: T91, A387: 91, A182: F91, X 20CrMoV12-1

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

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

205-320Â° C

Interpass temperature

205-320Â° C

Post Welding Heat Treatment

760 Â± 15Â° C

Average Chemical analysis

Si%

Mn%

Cu%

Cr%

Ni%

Mo%

Al%

Nb%

0,090

0,30

0,50

< 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

N/mm²

%5d

+20°C

780

690

150 J

The mechanical properties are approximate and may range on the basis of the Heat, shielding gas, welding parameters and other factors

Approvals

Contact ITALFIL

Fields of application

Energy

Structures