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
