JIS Y308
AWS ER308

Description and Applications
HM308 is a gas metal arc welding wire used with Ar + 0.5 ∼2.0% O2 shield gas. Arc’s stable beaded appearance is beautiful, and its ability to weld is satisfactory. Deposited metals contain a satisfactory amount of ferrite and shows excellent resistance to heat cracking. Welding of 18% Cr - 8%Ni stainless steels for chemical engineering plants and food processing apparatus.
 

Guideline in Usage

While high X-ray quality is required, stable spray transfer mode should be maintained with low current and slow welding speed using a pulsed arc power source.

 
Typical Chemical Composition of Weld Metal(%)
C Si Mn P S Cr Ni
0.04 0.34 1.92 0.019 0.004 20.1 9.6
 
Typical Mechanical Properties of Weld Metal
Tensile Strength
N/mm
2
Elongation
620 42
 
Size & Recommended Current Range (AC)
Diameter (mm)
0.9 / 1.0 1.2 1.6
Current (Amp) 70~300 100~350 120~350