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,飞溅损失极少。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 |