OK 76.35是一款含有5Cr-0.5Mo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 750°C 1h |
Elongation | Tensile Strength | Yield Strength | 保护气体 |
22 % | 620 MPa | 500 MPa | ISO |
PWHT 740°C 1h |
Elongation | Tensile Strength | Yield Strength | 保护气体 |
- | - | - | AWS |
夏比V型缺口冲击性能
PWHT 750°C 1h |
Impact Value | Testing Temperature | 保护气体 |
110 J | 20 °C | ISO |
焊缝金属分析
Mn |
Mn | Mo | C | Si | Ni | Cr |
0.7 % | - | - | - | - | - |
Mo |
Mn | Mo | C | Si | Ni | Cr |
- | 0.55 % | - | - | - | - |
C |
Mn | Mo | C | Si | Ni | Cr |
- | - | 0.05 % | - | - | - |
Si |
Mn | Mo | C | Si | Ni | Cr |
- | - | - | 0.4 % | - | - |
Ni |
Mn | Mo | C | Si | Ni | Cr |
- | - | - | - | 0.03 % | - |
Cr |
Mn | Mo | C | Si | Ni | Cr |
- | - | - | - | - | 5 % |
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 |
53 sec | 0.57 kg | 139 | 50-70 A | 0.49 kg/h | 23 V | 2.0 x 300 mm |
63 sec | 0.57 kg | 76.9 | 65-95 A | 0.7 kg/h | 23 V | 2.5 x 300 mm |
70 sec | 0.56 kg | 50.0 | 90-130 A | 1.0 kg/h | 24 V | 3.2 x 350 mm |
80 sec | 0.58 kg | 33.3 | 125-165 A | 1.3 kg/h | 24 V | 4.0 x 450 mm |