OK 67.50是一款适用于焊接CrNiMoN 22 5 3 和CrNiN 23 4牌号奥氏体-铁素体不锈钢的酸性金红石药皮焊条。其双相全焊缝金属具有高强度与优良延展性相结合的特点。 抗点蚀性能优良,且全焊缝金属不易受到应力腐蚀开裂的影响。
Typical Tensile Properties
| As welded | |||
| Elongation | Tensile Strength | Yield Strength | 保护气体 |
| 25 % | 857 MPa | 691 MPa | ISO |
| - | - | - | AWS |
夏比V型缺口冲击性能
| As welded | ||
| Impact Value | Testing Temperature | 保护气体 |
| 50 J | 20 °C | ISO |
| 41 J | -30 °C | ISO |
焊缝金属分析
| Mn | |||||||
| Mn | Mo | C | Si | Ferrite FN | Ni | N | Cr |
| 0.8 % | - | - | - | - | - | - | - |
| Mo | |||||||
| Mn | Mo | C | Si | Ferrite FN | Ni | N | Cr |
| - | 3.2 % | - | - | - | - | - | - |
| C | |||||||
| Mn | Mo | C | Si | Ferrite FN | Ni | N | Cr |
| - | - | 0.03 % | - | - | - | - | - |
| Si | |||||||
| Mn | Mo | C | Si | Ferrite FN | Ni | N | Cr |
| - | - | - | 0.8 % | - | - | - | - |
| Ferrite FN | |||||||
| Mn | Mo | C | Si | Ferrite FN | Ni | N | Cr |
| - | - | - | - | 42 % | - | - | - |
| Ni | |||||||
| Mn | Mo | C | Si | Ferrite FN | Ni | N | Cr |
| - | - | - | - | - | 8.8 % | - | - |
| 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 |
| 33 sec | 0.55 kg | 152 | 30-65 A | 0.7 kg/h | 29 V | 2.0 x 300 mm |
| 38 sec | 0.58 kg | 91 | 50-90 A | 1.0 kg/h | 27 V | 2.5 x 300 mm |
| 55 sec | 0.58 kg | 47 | 80-120 A | 1.4 kg/h | 28 V | 3.2 x 350 mm |
| 59 sec | 0.58 kg | 32 | 90-160 A | 1.9 kg/h | 29 V | 4.0 x 350 mm |
| 64 sec | 0.58 kg | 20 | 150-220 A | 2.8 kg/h | 30 V | 5.0 x 350 mm |
