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Ni-Hard 4 / EN-GJN-HV600

Home Materials Ni-Hard 4 / EN-GJN-HV600

Characteristics of Ni-Hard 4

Of today’s abrasion-resistant alloys, Ni-Hard 4 offers the greatest level of abrasion resistance. In addition to offering high abrasion resistance, Ni-Hard 4 is also more resistant to shock loads. This makes Ni-Hard 4 ideal for applications in dredge pumps where stones and other hard solid objects can be sucked into the pump.

The presence of chrome and nickel makes Ni-Hard 4 more resistant to corrosion than cast iron. Ni-Hard4 consists of chromium-iron carbides, retained in a martensitic/bainitic base structure.

Standards / designations
EN 12513 SYM (EU)EN-GJN-HV600

EN 12513 NR (EU)EN-JN2049

DIN 1695 (DE)G-X 320 CrNiSi 9-5-2

WERKSTOFFNUMMER (DE)0.9630

ASTM A532 (US)Ni-HiCr, Class I type D

ALTNi-Hard 4
Mechanical properties
Tensile strengthRm500-600[N/mm2]

Elasticity modulusEo196[kN/mm2]

Brinell hardnessHB30550-700[Kgf/mm2]

Rockwell hardnessHRc53-63
Chemical composition
CarbonC2.60-3.20[%]

SiliconSi1.80-2.00[%]

ManganeseMn0.40-0.60[%]

ChromiumCr8.00-9.00[%]

NickelNi5.00-6.50[%]

IronFeRemainder