
Jaw plates are the primary wear parts in jaw crushers, subjected to high impact and compression. High manganese steel work-hardens under impact, making it ideal for this application. Grade selection depends on feed size and abrasiveness.
Excellent work-hardening capability; surface hardness increases under impact, ideal for moderate to high impact crushing...
Higher Mn content provides superior work-hardening depth; 20-30% longer service life than Mn13 in high-compression appli...
Ultra-high Mn + Cr-Mo alloying; maximum work-hardening depth for extreme impact conditions; 30-50% longer life than Mn18...
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Hammer heads in impact crushers experience severe impact and abrasion. Higher Mn grades provide deeper work-hardening for extended service life in primary crushing of abrasive materials.
Excellent work-hardening capability; surface hardness increases under impact, ideal for moderate to high impact crushing...
Higher Mn content provides superior work-hardening depth; 20-30% longer service life than Mn13 in high-compression appli...
Ultra-high Mn + Cr-Mo alloying; maximum work-hardening depth for extreme impact conditions; 30-50% longer life than Mn18...

Gyratory crusher liners (mantle and concave) require exceptional work-hardening capability for primary crushing of large rock. Mn18Cr2 and Mn22Cr2Mo are preferred for their deeper hardening layer under extreme compression.
Higher Mn content provides superior work-hardening depth; 20-30% longer service life than Mn13 in high-compression appli...
Ultra-high Mn + Cr-Mo alloying; maximum work-hardening depth for extreme impact conditions; 30-50% longer life than Mn18...
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Impact bars (blow bars) in impact crushers require high toughness with good work-hardening. Mn13Cr2 provides cost-effective performance for medium-impact applications, while Mn18Cr2 offers extended life for high-impact conditions.
Excellent work-hardening capability; surface hardness increases under impact, ideal for moderate to high impact crushing...
Higher Mn content provides superior work-hardening depth; 20-30% longer service life than Mn13 in high-compression appli...
| Models | C | Si | Mn | Cr | Mo | Ni |
|---|---|---|---|---|---|---|
| Mn13Cr2 | 1.05-1.20 | ≤1.0 | 11.5-14.0 | 1.5-2.5 | — | — |
Excellent work-hardening capability; surface hardness increases under impact, ideal for moderate to high impact crushing conditions
| Models | C | Si | Mn | Cr | Mo | Ni |
|---|---|---|---|---|---|---|
| Mn18Cr2 | 1.05-1.35 | ≤1.0 | 16.0-19.0 | 1.5-2.5 | — | — |
Higher Mn content provides superior work-hardening depth; 20-30% longer service life than Mn13 in high-compression applications
| Models | C | Si | Mn | Cr | Mo | Ni |
|---|---|---|---|---|---|---|
| Mn22Cr2Mo | 1.10-1.40 | ≤1.0 | 20.0-24.0 | 1.5-2.5 | 0.30-0.60 | — |
Ultra-high Mn + Cr-Mo alloying; maximum work-hardening depth for extreme impact conditions; 30-50% longer life than Mn18
| Models | C | Si | Mn | Cr | TiC | Mo |
|---|---|---|---|---|---|---|
| Mn18Cr2+TiC | 1.05-1.35 | ≤1.0 | 16.0-19.0 | 1.5-2.5 | 8-15 vol% | — |
TiC ceramic inserts in Mn18 matrix; 2-3x wear life in abrasive conditions; ideal for hard rock cone crushing

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