BD920
Alloy Type: HARDFACING Core, Bare, and Coated Electrodes
BD920 is a tubular wire for gas shielded metal arc hardsurfacing giving a tough high speed tool steel deposit. It has excellent wear resistance due to the presence of small primary carbides. BD920 also has excellent resistance to softening at elevated temperatures.
Applications: BD920 is used for hardfacing components subject to abrasive wear and moderate impact. Examples: Tillage tools, shearing blades, high speed cutting tools.
| AWS Class:
N/A |
Welding Position:
Flat, Half up, Half down |
Typical All-Weld Metal Analysis
| C | Mn | Si | Cr | Mo | V | W | Nb | B |
| <1.0 | <0.75 | <1.2 | <5.0 | <5.0 | <2.0 | <5.0 | <5.0 | <5.0 |
TYPICAL ALL-WELD METAL MECHANICAL PROPERTIES
Hardness-3-layer deposit on mild steel; 62-65 HRc
CONDITIONS OF USE
| Current Type | Shielding Gas | |
| 212: Ar + to 25% CO2 | ||
| DC (+) | EN 439 | M13: Ar + 1 to 3% O2 |
| M12: Ar + 2 to 5% CO2 | ||
Gas flow rate: 30 – 40 cfh (15 – 20 I/min)
| Amperage A | Voltage V | Stick-out | ||||
| Diameter | Range | Optimum | Range | Optimum | Range | Optimum |
| 1/16″ (1.6mm) | 200-33 | 250 | 20-26 | 25 | 5/8″ – 1-1/4″ (15mm-30mm) | 1″ (25mm) |
Recovery: 95%
Standard Diameters: 1/16” (1.6mm)
Weight: 33lb spool