 新闻中心产品分类 联系方式
- 联系人：史东晓
- 电话：0319-5531528
- 传真：0319-5531528
- QQ：1098373309
荣誉资质 友情链接 |
|
 OK 74.78伊萨焊材
OK 74.78是一款适合焊接低温应用所用高强度钢的LMA焊条。其在温度低至-40°C条件下具有优良的缺口韧性。非常适合用于要求硬度达到约250 HV的强制成形焊接和轨道堆焊。OK 74.78极低的药皮含水量非常适合无法进行预热的应用。
Typical Tensile Properties
|
As welded
|
|
Elongation
|
Tensile Strength
|
Yield Strength
|
保护气体
|
Stress Relieved Temperature
|
Stress Relieved Testing Time
|
|
24 %
|
650 MPa
|
600 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
|
|
90 J
|
-40 °C
|
ISO
|
-
|
-
|
|
70 J
|
-50 °C
|
ISO
|
-
|
-
|
|
Stress relieved
|
|
Impact Value
|
Testing Temperature
|
保护气体
|
Stress Relieved Testing Temp
|
Stress Relieved Testing Time
|
|
-
|
-50 °C
|
AWS
|
620 °C
|
1 hr
|
焊缝金属分析
|
Mn
|
|
Mn
|
Mo
|
C
|
Si
|
Ni
|
Cr
|
|
1.60 %
|
-
|
-
|
-
|
-
|
-
|
|
Mo
|
|
Mn
|
Mo
|
C
|
Si
|
Ni
|
Cr
|
|
-
|
0.35 %
|
-
|
-
|
-
|
-
|
|
C
|
|
Mn
|
Mo
|
C
|
Si
|
Ni
|
Cr
|
|
-
|
-
|
0.05 %
|
-
|
-
|
-
|
|
Si
|
|
Mn
|
Mo
|
C
|
Si
|
Ni
|
Cr
|
|
-
|
-
|
-
|
0.35 %
|
-
|
-
|
|
Ni
|
|
Mn
|
Mo
|
C
|
Si
|
Ni
|
Cr
|
|
-
|
-
|
-
|
-
|
0.03 %
|
-
|
|
Cr
|
|
Mn
|
Mo
|
C
|
Si
|
Ni
|
Cr
|
|
-
|
-
|
-
|
-
|
-
|
0.03 %
|
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
|
|
55 sec
|
0.62 kg
|
73.0
|
75-100 A
|
0.90 kg/h
|
22 V
|
2.5 x 350 mm
|
|
86 sec
|
0.65 kg
|
32.0
|
105-140 A
|
1.30 kg/h
|
23 V
|
3.2 x 450 mm
|
|
97 sec
|
0.65 kg
|
20.5
|
140-190 A
|
1.80 kg/h
|
23 V
|
4.0 x 450 mm
|
|
100 sec
|
0.68 kg
|
14.0
|
190-260 A
|
2.60 kg/h
|
24 V
|
5.0 x 450 mm
|
|
103 sec
|
0.69 kg
|
10
|
240-340 A
|
3.6 kg/h
|
24 V
|
6.0 x 450 mm
|
|
