OK 73.79是一款鎳合金化LMA焊條，適用于焊接在溫度低至-101°C條件下具有沖擊強(qiáng)度要求的3.5 Ni鋼。適用于乙烷儲(chǔ)罐和化工廠。
Typical Tensile Properties
As welded
Elongation
Tensile Strength
Yield Strength
保護(hù)氣體
Stress Relieved Temperature
Stress Relieved Testing Time
27 %
630 MPa
540 MPa
ISO
-
-
Stress relieved
Elongation
Tensile Strength
Yield Strength
保護(hù)氣體
Stress Relieved Temperature
Stress Relieved Testing Time
-
-
-
AWS
620 °C
1 hr
夏比V型缺口沖擊性能
As welded
Impact Value
Testing Temperature
保護(hù)氣體
Stress Relieved Testing Temp
Stress Relieved Testing Time
130 J
-60 °C
ISO
-
-
110 J
-75 °C
ISO
-
-
Stress relieved
Impact Value
Testing Temperature
保護(hù)氣體
Stress Relieved Testing Temp
Stress Relieved Testing Time
-
-75 °C
AWS
620 °C
1 hr
焊縫金屬分析
Mn
Mn
Mo
C
Si
Ni
Cr
0.8 %
-
-
-
-
-
Mo
Mn
Mo
C
Si
Ni
Cr
-
0.01 %
-
-
-
-
C
Mn
Mo
C
Si
Ni
Cr
-
-
0.06 %
-
-
-
Si
Mn
Mo
C
Si
Ni
Cr
-
-
-
0.36 %
-
-
Ni
Mn
Mo
C
Si
Ni
Cr
-
-
-
-
3.37 %
-
Cr
Mn
Mo
C
Si
Ni
Cr
-
-
-
-
-
0.05 %
熔敷數(shù)據(jù)
Fusion time per electrode at 90% I max
kg weld bl/kg electrodes
Number of electrodes/kg weld bl
安培
熔敷率
電壓 V
直徑
60 sec
0.60 kg
76.0
70-110 A
0.80 kg/h
25 V
2.5 x 350 mm
77 sec
0.60 kg
37.0
80-150 A
1.50 kg/h
25 V
3.2 x 450 mm
88 sec
0.63 kg
26.0
90-190 A
1.80 kg/h
27 V
4.0 x 450 mm
100 sec
0.60 kg
15.0
110-240 A
2.10 kg/h
29 V
5.0 x 450 mm