OK 73.79伊萨焊材

OK 73.79是一款镍合金化LMA焊条，适用于焊接在温度低至-101°C条件下具有冲击强度要求的3.5 Ni钢。适用于乙烷储罐和化工厂。Typical Tensile Properties
As welded
Elongation	Tensile Strength	Yield Strength	保护气体	Stress Relieved Temperature	Stress Relieved Testing Time
27 %	630 MPa	540 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	Stress Relieved Testing Temp	Stress Relieved Testing Time
130 J	-60 °C	ISO	-	-
110 J	-75 °C	ISO	-	-
Stress relieved
Impact Value	Testing Temperature	保护气体	Stress Relieved Testing Temp	Stress Relieved Testing Time
-	-75 °C	AWS	620 °C	1 hr

焊缝金属分析
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
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