Chromium Carbide CrC Overlay
• Ideal for sliding abrasion (chutes, cyclones, pipes etc).• Cost effective. Cuts downtime costs.
• Unique MaxCSTM system for Maximum Carbide Saturation.
• Outlast normal ‘400’ and ‘500’ materials by 8-12 times.
• Withstands heat up to 600°C.
• Can be countersunk and holed, stud-welded, rolled and fabricated.
• Thickness from 6mm (3/3) to 30mm (20mm CrC on the 10mm base).
R-C700 Properties
Rio-Carb lon-life liners have a combination of abrasion resistant Chromium Carbide (CrC) alloy welded onto a ductile mild steel base plate.
• Rio-Carb exploit these properties to the full with its MaxCSTM development.
• The R-C700 consists of CrC particles suspended in a hard and stable matrix.
• The Carbide hardness is approximately 1 800 VPN.
• Macro-hardness of 55-60 Rc.
• The relief cracks are desirable and indicate that there is no cracking away of the hard layer from the mild steel base.
Table of Properties
Hardness - 56Rc (Outlasts normal ‘400” and ’500’ materials by 8-12 times)
Co-efficient of friction - μ0.195 Rc (CrC on polished Mild Steel)
Wear Rate - 17.3mm3 (ASTM G-65) (”400” is 162.3mm3)
Chemistry (CrC) - Nominally 24% Chromium : 4% Carbon plus Manganese, Silicon and other elements up to 4%
Backing Plate - 350WA Mild Steel
Bending Ratio - Radius = 40 x thickness overall
Plate Sizes - 1.5m x 3.0m = 4.5m2 usable area
Heat - Up to 600°C
| OVERALL PLATE THICKNESS mm | DESCRIPTION mm | MASS Kg/m2 | MASSTonne/m2 |
|---|---|---|---|
| 8 | 4/4 | 64 | 15.6 |
| 10 | 4/6 | 80 | 12.5 |
| 12 | 6/6 | 96 | 10.4 |
| 16 | 8/8 | 128 | 7.8 |
| 20 | 10/10 | 160 | 6.2 |
| 24 | 12/12 | 192 | 5.2 |
| 30 | 20/10 | 240 | 4.2 |
| DETAILS | SPECIFICATION AND TOLERANCE |
|---|---|
| Size Measurement | Plus 1mm, minus 2mm |
| Diagonal Measurement | Plus 1mm, minus 2mm |
| Flatness | Max. 2mm deviation over 500mm |
| Smoothness | Glassy appearance |
| Crack Pattern | Relief tracks run across the weld bead. ±40mm apart |
| Weld Beads | No gaps, peaks or valleys between beads. Stringer type beads not permitted |
| Plate Thickness | Plus 0.5mm to minus 0.5mm |
| Plasma Etching | All part numbers permanently plasma etched on rear |
| Positioning of studs and holes | Plus 1mm or minus 1mm max |
| Bead “chips” or “flaking” of surface | NIL |
| Storage Protection | Painted Red Oxide Alkyd both sides |
| Weld Direction | Not important but adhered to if specified by customer |
| Studs | Positioned within 2.0mm |
| Hard Marking | Plasma Etched |