Item Name

HD HF 40

HD HF 40A

HD HF 45H

HD HF 60

Welding position

F

F

F

F

Type of Current

DC +

DC +

AC≥70V or DC +

AC or DC +

Typical Chemical Composition of Deposited Metal (%)

C

≤0.18

≤0.18

1.50-3.50

≤3.00

Mn

0.60-5.00

1.00-2.50

≤1.00

-

Si

3.80-6.50

2.00-3.20

-

-

S

≤0.030

≤0.030

-

-

P

≤0.040

≤0.040

-

-

Cr

14.00-21.00

14.00-20.00

22.00-32.00

4.00-6.00

Ni

6.50-12.00

8.00-12.50

-

-

Mo

3.50-7.00

3.50-7.00

-

-

V

-

≤1.50

-

-

W

-

≤2.80

-

4.00

Nb

0.50-1.20

0.50-1.20

-

-

Other elements

≤2.5

-

≤7.00

≤3.00

Hardness of Deposited Metal HRC

≥37

≥37

≥45

≥60

Applications

Surfacing and sealing the surface for high pressure valves working temperature of which is below 600 ºC

Surfacing and sealing the surface for high pressure valves working temperature of which is below 600 ºC

Surfacing structures of high temperature and high temperature wear resistance corrosion resistance such as hydraulic turbine valves , parts of high pressure pump etc

Surfacing of mining machinery and mud pump

Item Name

HD HF 40

HD HF 40A

HD HF 45H

HD HF 60

Welding position

Type of Current

Typical Chemical Composition of Deposited Metal (%)

C

Mn

Si

S

P

Cr

Ni

Mo

V

W

Nb

Other elements

Hardness of Deposited Metal HRC

Applications

Surfacing and sealing the surface for high pressure valves working temperature of which is below 600 ºC

Surfacing and sealing the surface for high pressure valves working temperature of which is below 600 ºC

Surfacing structures of high temperature and high temperature wear resistance corrosion resistance such as hydraulic turbine valves , parts of high pressure pump etc

Surfacing of mining machinery and mud pump