KC-90SB9

For butt and fillet welding of power plant, heat exchanger and oil refineries such as 9%Cr-1%Mo-V heat-resistant steel.

AWS       A5.28 : ER90S-B9
EN          21952-A : G CrMo91
EN         21952-B : G 62 9C1MV

Description

Sizes (mm) Standard Welding Position Shielding gas Polarity
1.2~1.6 AWS A5.28
EN 21952-A
EN 21952-B
ER90S-B9
G CrMo91
G 62 9C1MV
F, HF Ar+5%CO2 DC(+)
 
Typical chemical composition of wire (%)
C Si Mn P S Cr Ni Mo Remark
0.10 0.23 0.75 0.005 0.002 9.10 0.94 V : 0.18
Nb : 0.06
 
Typical mechanical properties of all-weld metal
Y.S (MPa) T.S (MPa) EI. (%) Hardness (HV) IV (J) PWHT
540 750 20 90 (0℃) 760℃x2Hr