OK 78.16伊萨焊材

OK 78.16为适用于焊接0.25C-1Cr-0.3Mo合金化淬火和回火钢种的CrMo合金化焊条。其焊缝金属的热处理要求与母板相同。OK 78.16的焊缝金属还适合进行火焰硬化。采用OK 78.16焊接高强度钢种应进行较低200°C的预热。Typical Tensile Properties
As welded
Elongation	Tensile Strength	Yield Strength	保护气体
17 %	900 MPa	800 MPa	ISO
-	-	-	AWS

夏比V型缺口冲击性能
As welded
Impact Value	Testing Temperature	保护气体
80 J	20 °C	ISO

焊缝金属分析
Mn
Mn	Mo	C	Si	Cr
0.76 %	-	-	-	-
Mo
Mn	Mo	C	Si	Cr
-	0.2 %	-	-	-
C
Mn	Mo	C	Si	Cr
-	-	0.17 %	-	-
Si
Mn	Mo	C	Si	Cr
-	-	-	0.52 %	-
Cr
Mn	Mo	C	Si	Cr
-	-	-	-	1.15 %

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
58 sec	0.64 kg	70.0	75-100 A	0.90 kg/h	20 V	2.5 x 350 mm
78 sec	0.64 kg	32.5	105-140 A	1.40 kg/h	21 V	3.2 x 450 mm
83 sec	0.66 kg	22.5	145-195 A	1.90 kg/h	22 V	4.0 x 450 mm
86 sec	0.68 kg	15.0	190-260 A	2.80 kg/h	23 V	5.0 x 450 mm