PHiLARC Products
- Carbon Steel Electrodes
- High Tensile Strength Steel
- For Low Temperature Steel
- Heat Resisting Steel Electrodes
- Atmospheric Corrosion Resisting
- Hardfacing Electrodes
- Stainless Steel Electrodes
- Nickel and Nickel Alloy Electrodes
- Cast Iron Electrodes
- Aluminum Alloy Electrodes
- Bronze and Copper Alloy Electrodes
- Gouging and Cutting Electrodes
- Solid Welding Wire (GMAW and GTAW)
- Oxy Fuel Gas Filler Rods for Brazing
- Oxy Fuel Gas Brazing FLuxes
- Submerged Arc Weding Wire and Flux
- Flux Cored Wires (FCAW)
PHILHARD 4340
AWS SPECIFICATION: NONE
JIS sPECIFICATION: NONE
Other Specification: NONE
I. APPLICATIONS:
PHILHARD 4340 for welding and hardfacing of parts mode from ASTM 4340 steels.
II. DESCRIPTION:
PHILHARD 4340 is an all-position, low hydrogen electrode developed for the welding of heat-treatable, high strength steels such as SAE 4130, 4330, 4340 and steel castings with similar hardening properties.
III. NOTES ON USAGE:
PREHEAT:
When heat treatable steels are welded with any ferritic electrode, including PHILHARD 4340, it is necessary that the weldments be preheated to 400-600ºF (204-316ºC), with the same temperature held at interpass, in order to prevent cracking.
IV. TYPICAL CHEMICAL COMPOSITION OF WELD METAL (%):
C |
Mn |
Si |
P |
S |
Cr |
Ni |
0.36 |
0.83 |
0.52 |
0.011 |
0.014 |
0.81 |
1.82 |
V. HARDNESS OF WELD METAL: (as welded without oil quenched) 27-30 HRC
VI. WELDING POSITIONS: FLAT, OVERHEAD, VERTICAL
VII. SIZES AVAILABLE AND RECOMMENDED CURRENTS (AC or DC + ):
Size (mm) |
Dia. |
2.6 |
3.2 |
4.0 |
5.0 |
Length |
350 |
350 |
350 |
350 |
|
Current Range F |
55~85 |
90~120 |
120~170 |
170~220 |
|
V, OH |
50~80 |
80~110 |
100~160 |
140~190 |