What Are the Best Materials for High-Wear Cast and Forged Parts
Introduction
For heavy-duty industrial equipment like crushers, grinding mills, excavators, and mining machinery, high-wear cast and forged parts must resist abrasion, impact, friction, and cyclic load. Choosing the right wear-resistant material directly determines service life, downtime, and maintenance cost.
Below are the best materials for high-wear cast and forged parts, sorted by application, wear resistance, impact toughness and cost performance.
1. High Manganese Steel (Hadfield Steel) – #1 for Impact + Abrasion
Grade: ZGMn13, ZGMn18, Mn13Cr2
- Best for: Heavy impact + strong abrasion working conditions
- Features:
- Work-hardening on surface under impact
- Remains tough and not easy to crack
- Excellent impact wear resistance
- Typical parts:
Jaw crusher jaw plates, cone crusher liners, hammer mill hammers, bucket teeth, impact crusher blow bars
- Form: Castings mostly, also available in forgings
2. High Chromium Cast Iron – Best for Pure Abrasion Wear
Grade: Cr15, Cr20, Cr27 high chromium white iron
- Best for: Severe abrasion, low to medium impact
- Features:
- Extremely high hardness
- Excellent anti-abrasion performance
- Good corrosion and heat wear resistance
- Typical parts:
Mill liners, wear plates, chute liners, slag handling parts
- Form: Castings only (not suitable for forging)
3. Alloy Wear-Resistant Steel (Alloy Carbon / Low Alloy Steel)
Grade: 42CrMo, 35CrMo, 40Cr, 50Mn2
- Best for: Wear + high strength + fatigue resistance
- Features:
- Balance of hardness and toughness
- Can be quenched and tempered for adjustable hardness
- Good machinability and easy heat treatment
- Typical parts:
Forged shafts, gear blanks, connecting rods, pinion shafts, crusher main shafts
- Form: Castings + Forgings — most widely used for forged wear parts
4. Austempered Ductile Iron (ADI)
Grade: ADI QT800–QT1200
- Best for: Medium wear, vibration and light impact
- Features:
- Higher strength and wear resistance than ordinary ductile iron
- Good damping and fatigue resistance
- Cost lower than alloy steel
- Typical parts:
Machinery gears, sprockets, tractor parts, pump wear components
- Form: Castings
5. High Carbon & Medium Carbon Steel
Grade: 1045, 45# , 55# , 60# steel
- Best for: General wear, structural load parts
- Features:
- Good surface hardness after heat treatment
- Low cost, easy to forge and machine
- Typical parts:
Forged axles, rollers, simple wear brackets, structural wear parts
- Form: Forgings preferred, also castable
6. Stainless & Duplex Alloys – Wear + Corrosion
Grade: 2205, 2507, 316L, High nickel alloys
- Best for: Wear + corrosive environment (chemical, marine, salt water)
- Features:
- Wear resistance + acid / alkali corrosion resistance
- High temperature oxidation resistance
- Typical parts:
Corrosive slurry pump parts, marine wear components, chemical valve trim
- Form: Forgings and investment castings
Quick Selection Guide — Best Material by Working Condition
- High impact + high abrasion → High Manganese Steel Mn13
- Severe abrasion, low impact → High Chromium Cast Iron Cr27
- Wear + high strength + shaft/gear parts → Alloy Steel 42CrMo / 35CrMo Forgings
- Medium wear, cost-sensitive → ADI Austempered Ductile Iron
- General structural wear parts → 45# / 50Mn2 Carbon Steel
- Wear + corrosion / marine → Duplex Stainless Steel 2205 / 2507
Conclusion
The best materials for high-wear cast and forged parts depend on impact level, abrasion degree, temperature, corrosion and cost.
- For mining crusher & mill wear parts: High manganese steel / high chromium iron
- For forged shaft, gear and heavy load parts: Alloy steel 42CrMo, 35CrMo
- For corrosive wear environment: Duplex stainless steel & high alloy forgings