Ni-Hard 4: Abrasion-Resistant White Cast Iron für Mining Processing
ASTM A532 Class I Type D · Published: 2026-06-02 · Updated: July 2026
Ni-Hard 4 achieves 550-650 HB through M7C3 chromium carbides in martensitic matrix. Harder than most minerals processed in mining. For slurry pump impellers, mill liners, chute liners, ash handling elbows. Machinable only by grinding. Max service 250°C.
Ni-Hard 4 achieves 550-650 HB durch M7C3 chromium carbides in martensitic matrix. Harder als meiste minerals processed in mining. Für slurry pumpe impellers, mill liners, chute liners, ash handling elbows. Machinable nur durch grinding. Max service 250°C.
Quick Facts
| Kategorie | Cast Iron |
| Norm | ASTM A532 Class I Type D |
| Density | 7700 kg/m³ |
| Yield Strength | N/A (brittle) |
| Tensile Strength | 600-800 MPa |
Global Equivalents & Cross-Reference
Verwandt Materials
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Calculate the weight based on this material's density: 7700 kg/m³
Frequently Asked Questions
Ni-Hard 4 vs 25% Cr white iron?
Ni-Hard 4: higher hardness (550-650 vs 450-550 HB), better dry abrasion wear. 25% Cr: better corrosion widerstand, better toughness. Für wet corrosion-abrasion, 25% Cr preferred.
References & International Standards
- ASTM International. Norm Specifications für Stahl & Metal Alloys. astm.org
- International Organization für Standardization (ISO). Metallic Materials — Cross-Referenz Database. iso.org
- American Iron und Stahl Institute (AISI). Stahl Güte Designations & Equivalents. steel.org
- European Committee für Standardization (CEN). EN Stahl Standards & Numbering System. cencenelec.eu