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 HSS 690
AWS Specification: AWS EFe-5B
JIS Specification:NONE
Other Specification:DIN 8555 E4-Um-60-ST
I. APPLICATIONS:
PHILHARD HSS 690 is used for manufacturing and reconditioning tools and in general for surfacing with high wear resistance on machines and tools. The weld metal withstands stressing by abrasions, impact compression and temperatures up to 1020ºF (550ºC).
This electrode is suitable for the production of all kinds of cutting tools, such as lathe and plane tools, large drills, countersinks, millers, broaches and for hot work tools like deburring plates, punches, hot shear blades etc.
Under the designation PHILHARD HSS 690 we supply a special synthetic electrode.
II. WELDING PROPERTIES OF THE WELD METAL:
The electrode can be welded in all positions except vertical down. Good slag removal. The weld metal of PHILHARD HSS 690 corresponds to a super-speed steel with high molybdenum content.
III. NOTES ON USAGE:
Bigger workpieces must be preheated to 750-1110ºF (400-600ºC) and kept at this temperature during welding.
A lower preheat temperature is enough for smaller work, because it is heated adequately by the arc. Certain jobs on smaller workpieces may even be welded without preheating. The depth of the build-up may amount to 15mm max. Slowly cool in an oven or under asbestos after welding. The weld can be machined only by grinding after it cools. If other cutting operations have to be performed on a build-up weld, annealing is necessary.
IV. TYPICAL CHEMICAL COMPOSITION OF WELD METAL (%)
C |
Si |
Mn |
Cr |
Mo |
W |
V |
0.90 |
0.81 |
0.52 |
4.60 |
8.10 |
2.00 |
1.20 |
V. HARDNESS OF WELD METAL:
Hardness after welding : 61-63 HRC (720-780 Hv)
Soft-annealed: about 25 HRC
Hardened: 64-66 HRC
VI. HEAT TREAMENT:
Soft annealing : 1470-1525ºF (800-830ºC) 2 hours
Hardening: 2120-2260ºF (1160-1240ºC) / cooling in oil
Tempering: once or twice at 1000-1040ºF (540-560ºC) / 30 mins each
WELDING POSITIONS: FLAT, FILLET, VERTICAL UP
VII. SIZES AVAILABLE AND RECOMMENDED CURRENTS (AC or DC + ):
Size (dia. mm) |
3.2 |
4.0 |
5.0 |
Length (mm) |
350 |
350 |
350 |
Current Range (Amp) |
90 - 130 |
120 - 180 |
170 - 230 |