OK 76.96伊萨焊材

OK 76.96是一款含有9Cr1Mo的LMA焊条，适合焊接抗蠕变钢种。其非常适用于焊接管道。该焊条可产生稳定的电弧，飞溅损失较少。通常预热与层间温度为150-260°C。在此所列的机械性能参数为740°C热处理一小时之后测得。Typical Tensile Properties
PWHT 740°C 1h
保护气体	Elongation	Stress Relieved Temperature	Stress Relieved Testing Time	Tensile Strength	Yield Strength
ISO	-	-	-	-	-
Stress relieved
保护气体	Elongation	Stress Relieved Temperature	Stress Relieved Testing Time	Tensile Strength	Yield Strength
ISO	17 %	650 °C	2 hr	850 MPa	730 MPa
ISO	22 %	750 °C	2 hr	720 MPa	550 MPa
ISO	> 20 %	850 °C	2 hr	> 450 MPa	-
PWHT 740°C 1h
保护气体	Elongation	Stress Relieved Temperature	Stress Relieved Testing Time	Tensile Strength	Yield Strength
AWS	-	-	-	-	-

夏比V型缺口冲击性能
Stress relieved
Impact Value	Stress Relieved Testing Temp	Stress Relieved Testing Time	Testing Temperature	保护气体
25 J	650 °C	2 hr	20 °C	ISO
60 J	750 °C	2 hr	20 °C	ISO
80 J	850 °C	2 hr	20 °C	ISO

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
49 hr	0.58 kg	131.0	55-75 A	0.50 kg/h	23 V	2.0 x 300 mm
51 hr	0.55 kg	92.0	70-100 A	0.80 kg/h	25 V	2.5 x 300 mm
70 hr	0.55 kg	50.0	90-135 A	1.10 kg/h	26 V	3.2 x 350 mm
80 hr	0.64 kg	22.5	130-200 A	1.90 kg/h	21 V	4.0 x 450 mm