Typical wear-resistant lining thickness
General range: ≈ 5–15 mm (most common engineering practice)
Standard composite/UHMWPE-lined pipes: ≈ 8–20 mm
Severe abrasion (e.g., tailings, high solids slurry): up to 20–25 mm or more
How this applies specifically to steel wire mesh reinforced pipes
In steel wire mesh reinforced PE composite pipes, the structure is:
Inner PE/UHMWPE layer → wear/corrosion resistance
Steel wire mesh → pressure-bearing reinforcement
Outer PE layer → protection
The inner layer thickness is typically a fraction of total wall thickness (overall wall can be 10–60 mm depending on pressure class)
For standard water supply SRTP pipes, the inner layer may be thinner (a few mm), but:
For mining / tailings / slurry, designers increase the inner wear layer to ~8–20 mm to ensure service life.
Engineering selection logic
The lining thickness is not fixed-it is selected based on:
Abrasion severity (particle hardness, size, velocity)
Flow velocity / turbulence
Required service life (wear allowance)
Maintenance strategy (replace vs. long-life design)
Practical takeaway
Water / low-abrasion service: ~3–8 mm inner layer
Moderate slurry: ~8–15 mm
High-wear tailings pipelines: 15–25 mm (typical design range)
If you're designing for a tailings pipeline, it's better to treat ~10–20 mm as the baseline, then validate via wear rate calculations (e.g., mm/year loss) rather than selecting thickness purely by convention.
