D31T Overlay Pipes
D31T overlay pipes are manufactured by hardfacing the internal diameter, with a chromium carbide deposit (52–55 HRC).
They offer excellent resistance to sliding abrasion, particularly suited for piping exposed to high-velocity abrasive flows.
Why use them?
Significantly longer service life than 400 HB hardened pipes
Lightweight and compact solution
Ideal for replacing or upgrading abrasive material transport lines
| Internal Ø (mm) | External Ø (mm) | Steel Pipe Thickness (mm) | Overlay Thickness (mm) | Length (mm) |
|---|---|---|---|---|
| 40 | 60.3 | 6.3 | 3.85 | 3000 |
| 45 | 63.5 | 6.3 | 2.95 | 3000 |
| 50 | 70 | 6.3 | 3.7 | 3000 |
| 65 | 88.9 | 8 | 3.95 | 3000 |
| 75 | 101.6 | 10 | 3.3 | 3000 |
| 80 | 101.6 | 7.1 | 3.7 | 3000 |
| 90 | 114.13 | 8.715 | 3.35 | 3000 |
| 100 | 121 | 7.1 | 3.4 | 3000 |
| 125 | 139.7 | 4 | 3.35 | 3000 |
| 150 | 168.3 | 6.3 | 2.85 | 3000 |
| 175 | 193.7 | 6.3 | 3.05 | 3000 |
| 200 | 219.1 | 6.3 | 3.25 | 3000 |
| 225 | 244.5 | 6.3 | 3.45 | 3000 |
| 250 | 273 | 8 | 3.5 | 3000 |
| 300 | 323.9 | 8.8 | 3.15 | 3000 |
| 336 | 355.6 | 6.35 | 3.45 | 3000 |
| 387 | 406.4 | 6.35 | 3.35 | 3000 |
| 438 | 457.2 | 6.35 | 3.25 | 3000 |
| 484 | 508.8 | 9.2 | 3.2 | 3000 |
| 583 | 609.6 | 10 | 3.3 | 3000 |
| 634 | 660.4 | 10 | 3.2 | 3000 |
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