Weldable backing powders
For different matrix powders we developed a suitable laser welding backing powder. Choose from our selection the product that suits you the most, depending on the application (core drill or saw blades), required sintering temperatur and the desired hardness.
Bonds | Main components | Suitable for core drils? (breaking torque Nm/cm³) * | Suitable for circular saw? (breaking torque Nm/cm³) ** | Hot pressing range (°C) | Hardness HRB | Density (g/cm³) | Sintering data |
DIAWELD-1000 | Fe, Co | no | yes (35,2) | > 740 | 103 - 105 | > 7,95 | |
DIAWELD-3000 | Fe | yes (18) | yes (40) | 860 - 940 ¹ | 55 - 65 | > 7,51 | |
DIAWELD-3100 | Fe | yes (22) | yes (49) | > 780 | 69 - 75 | > 7,66 | |
DIAWELD-3200 | Fe | yes (22) | yes (49,5) | > 860 | 58 - 64 | > 7,64 | |
DIAWELD-3300 | Fe | yes (20,1) | yes (52,2) | > 820 | 76 - 79 | > 7,63 | |
DIAWELD-3400 | Fe | no | yes (48,9) | > 780 | 66 - 74 | > 7,74 | |
DIAWELD-4000 | Fe | no | yes (44,6) | > 780 | 73 - 81 | > 7,68 | |
DIAWELD-5000 | Fe | no | yes (42,8) | > 740 | 89 - 92 | > 7,77 | |
DIAWELD-7000 | Fe, Co | no | yes (53,1) | > 980 | 88 - 90 | > 9,50 | |
DIAWELD-7100 ² | Co, Fe | no | yes (> 50) | > 940 | 101 - 107 | > 9,05 | |
DIAWELD-7200 ³ | Co, WC | not tested | yes (42,9) | > 900 | 99 - 103 | > 9,72 | |
DIAWELD-8000 | Fe | yes (19,5) | yes (35,4) | > 740 | 75 - 83 | > 7,74 | |
DIAWELD-9000 | Fe | yes (20) | yes (51,5) | > 860 | 62 - 74 | > 7,60 | |
V30-608 | Fe, Ni | yes (20) | yes (40,4) | 860 - 940 | 63 - 68 | 7,61 |
* Testing parameters core drill: dia. 100 x 2mm, 24 x 3,5 x 10mm
** Testing parameters circular saw: dia. 100 x 2mm, 24 x 3,5 x 10mm
¹ can also be sintered at 820 °C in case of need, but then it requires higher pressure and a bit more holding time
² with slight wear protection; suitable for abrasive concrete and non-abrasive asphalt
³ backing powder with wear protection for asphalt and similar abrasive applications