OK 67.55是一款非常适合焊接UNS S31803等双相不锈钢的碱性药皮焊条。其所熔敷的焊缝金属在温度低至-50°C/-60°C条件下具有极高的延展性。其特别适合用于在海洋工程中焊接双相不锈钢管道。
Typical Tensile Properties
| As welded |
| Elongation | Tensile Strength | Yield Strength | 保护气体 |
| 28 % | 800 MPa | 650 MPa | ISO |
夏比V型缺口冲击性能| As welded |
| Impact Value | Testing Temperature | 保护气体 |
| 100 J | 20 °C | ISO |
| 85 J | -20 °C | ISO |
| 75 J | -40 °C | ISO |
| 65 J | -60 °C | ISO |
焊缝金属分析| Mn |
| Mn | Mo | C | Si | Ferrite FN | Ni | N | Cr |
| 1.0 % | - | - | - | - | - | - | - |
| Mo |
| Mn | Mo | C | Si | Ferrite FN | Ni | N | Cr |
| - | 3.2 % | - | - | - | - | - | - |
| C |
| Mn | Mo | C | Si | Ferrite FN | Ni | N | Cr |
| - | - | 0.04 % | - | - | - | - | - |
| Si |
| Mn | Mo | C | Si | Ferrite FN | Ni | N | Cr |
| - | - | - | 0.7 % | - | - | - | - |
| Ferrite FN |
| Mn | Mo | C | Si | Ferrite FN | Ni | N | Cr |
| - | - | - | - | 41 % | - | - | - |
| Ni |
| Mn | Mo | C | Si | Ferrite FN | Ni | N | Cr |
| - | - | - | - | - | 9.1 % | - | - |
| Cr |
| Mn | Mo | C | Si | Ferrite FN | Ni | N | Cr |
| - | - | - | - | - | - | - | 23.2 % |
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 sec | 0.59 kg | 96 | 50-80 A | 0.8 kg/h | 23 V | 2.5 x 300 mm |
| 61 sec | 0.59 kg | 50 | 65-115 A | 1.2 kg/h | 24 V | 3.2 x 350 mm |
| 74 sec | 0.60 kg | 33 | 80-140 A | 1.5 kg/h | 24 V | 4.0 x 350 mm
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