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
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