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Mn13, Mn18Cr2, Mn22Cr2 or High Chrome Cr26? The right wear part material depends on feed hardness, impact energy and abrasiveness. A practical selection guide from 15+ years of casting crusher liners.
Buyers often ask which material we recommend for their crusher liners. The answer depends on three properties of your feed: hardness, impact energy and abrasiveness. Choosing the wrong grade usually does not cause failure - it just leaves money on the table through shorter life or paying for alloy you do not need.
Hadfield manganese steel is unique: it starts relatively soft (HB 200-260) but transforms to 500+ HB at the surface under repeated impact, while the core stays tough. This is why manganese liners survive impact that would shatter hardened steel. The higher the carbon and alloy content (Mn18Cr2, Mn22Cr2), the faster and deeper this hardening - but only if there is enough impact to drive it.
| Condition | Recommended material | Typical application |
|---|---|---|
| Medium impact, low-mid abrasion | Mn13 | Limestone jaw crushing, small feed |
| Standard impact and abrasion | Mn13Cr2 | General jaw plates, cone liners |
| High impact + abrasive feed | Mn18Cr2 | Copper/iron ore cone liners, HP/GP series mantles |
| Severe impact, hard large rock | Mn22Cr2 | Primary jaw plates (C160 class), granite/basalt |
| Low impact + high abrasion (fine crushing) | High Chrome Cr26 | Blow bars in impact crushers, sand making |
Two rules of thumb from our casting experience:
For the most abrasive circuits we also produce ceramic-composite liners - Mn18Cr2 or Mn22Cr2 embedded with tungsten carbide or ceramic particles at the wearing zones. These cost more per piece but can double life in silica-rich ores; the economics work whenever changeout downtime dominates your cost.
Tell us the crusher model, feed size, throughput and material being crushed - a photo of the worn liner helps even more. Our engineer will recommend a material grade and confirm the profile before production. Quotation within 24 hours, standard lead time 15-30 days, MTR included with every shipment.
Trusted by customers in 30+ countries. Standard lead time 15-30 days.
High manganese steel Mn13, Mn13Cr2, Mn18Cr2 and Mn22Cr2, plus high chrome iron (Cr26) for fine crushing. We select the material based on your abrasive and impact conditions - send your working conditions for a recommendation.
Aftermarket parts fit Metso (HP, GP, C, NP series), Sandvik (CH, CS, H, S series), Symons 2FT-7FT, Terex Pegson, Kleemann, McCloskey, Shanbao, SBM, Telsmith, Minyu, Hazemag and more. Any model can be custom made by drawing or sample.
Yes. Send a drawing (PDF, DWG or CAD) or a used sample. We measure, draft and confirm all dimensions with you before production. OEM part numbers are welcome for reference.
Standard lead time is 15-30 days and samples ship in 7-15 days. MOQ is flexible - trial orders from 1 piece are accepted.
ISO 9001 and SGS certified factory. Every shipment includes a Material Test Report (MTR) with chemical composition and mechanical properties.
Export-standard wooden crates with rust protection. Sea and air freight from Shanghai and Ningbo ports to worldwide destinations.
| Material | Initial Hardness | Best For |
|---|---|---|
| Mn13 (ASTM A128) | HB 200-230 | General crushing with medium impact |
| Mn13Cr2 | HB 210-240 | Standard jaw plates and cone liners |
| Mn18Cr2 | HB 220-250 | High-impact, abrasive feed |
| Mn22Cr2 | HB 230-260 | Severe impact, hard and large rock |
| High Chrome Cr26 | HRC 58-62 | Blow bars, fine crushing of abrasive material |
* High manganese steel work-hardens under impact to 500+ HB at the wearing surface, giving long life in hard-rock crushing.
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