|
|
 |
|
|
|
|
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/mm2 |
Elongation
％ |
|
620 |
42 |
|
|
|
|
Size & Recommended Current Range (AC) |
|
|
|
0.9 / 1.0 |
1.2 |
1.6 |
|
Current (Amp) |
70~300 |
100~350 |
120~350 |
|
|
|
|
 |
