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OK 74.70是一款适用于高强度低合金钢焊接的LMA焊条。该焊条非常适用于包括管道焊接在内的各种应用。
Typical Tensile Properties
As welded
Elongation
Tensile Strength
Yield Strength
保护气体
Stress Relieved Temperature
Stress Relieved Testing Time
25 %
650 MPa
550 MPa
ISO
-
-
Stress relieved
Elongation
Tensile Strength
Yield Strength
保护气体
Stress Relieved Temperature
Stress Relieved Testing Time
-
-
-
AWS
620 °C
1 hr
夏比V型缺口冲击性能
As welded
Impact Value
Testing Temperature
保护气体
120 J
-20 °C
ISO
90 J
-40 °C
ISO
焊缝金属分析
Mn
Mn
Mo
C
Si
1.5 %
-
-
-
Mo
Mn
Mo
C
Si
-
0.45 %
-
-
C
Mn
Mo
C
Si
-
-
0.08 %
-
Si
Mn
Mo
C
Si
-
-
-
0.4 %
熔敷数据
Fusion time per electrode at 90% I max
kg weld metal/kg electrodes
Number of electrodes/kg weld metal
安培
熔敷率
电压 V
直径
63 sec
0.58 kg
50
80-140 A
1.14 kg/h
23 V
3.2 x 350 mm
91 sec
0.61 kg
25
80-140 A
1.6 kg/h
23 V
3.2 x 450 mm
93 sec
0.63 kg
24
90-190 A
1.66 kg/h
24 V
4.0 x 450 mm
