OK 68.15是一款用于熔敷铁素体13Cr焊缝金属的不锈钢焊条。OK 68.15适用于当CrNi合金化奥氏体不锈钢焊条无法使用(如结构件将会接触刺激性***气体时)时类似成分钢种的焊接。根据焊接参数不同,结构件及未处理焊缝金属相应的机械性能在相当大的限值范围内变化很大。
Typical Tensile Properties
Stress relieved | |||||
Stress Relieved Temperature | Stress Relieved Testing Time | 保护气体 | Elongation | Tensile Strength | Yield Strength |
750 °C | 6 hr | AWS | - | - | - |
750 °C | 1 hr | AWS | 25 % | 520 MPa | 370 MPa |
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 |
55 J | 750 °C | 6 hr | 20 °C | AWS |
35 J | 750 °C | 6 hr | 0 °C | AWS |
20 J | 750 °C | 6 hr | -20 °C | AWS |
焊缝金属分析
Mn | ||||
Mn | C | Si | Ni | Cr |
0.3 % | - | - | - | - |
C | ||||
Mn | C | Si | Ni | Cr |
- | 0.04 % | - | - | - |
Si | ||||
Mn | C | Si | Ni | Cr |
- | - | 0.4 % | - | - |
Ni | ||||
Mn | C | Si | Ni | Cr |
- | - | - | 0.1 % | - |
Cr | ||||
Mn | C | Si | Ni | Cr |
- | - | - | - | 12.9 % |
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 |
48 sec | 0.62 kg | 73 | 65-115 A | 1.0 kg/h | 25 V | 2.5 x 350 mm |
71 sec | 0.63 kg | 33 | 90-160 A | 1.5 kg/h | 25 V | 3.2 x 450 mm |
73 sec | 0.57 kg | 24 | 120-220 A | 2.0 kg/h | 30 V | 4.0 x 450 mm |