GGG50 / EN-GJS-500-7

Characteristics of GGG50

GGG50 is a material with a predominantly ferritic/pearlitic base structure. It offers good tensile strength and a satisfactorily high yield point combined with good toughness. GGG50 is easily machinable and can be used up to about 450 °C.

In comparison to GGG40, this material is the ideal choice for applications where the level of wear and tear is higher, such as running wheels and wheel hubs (e.g. sweepers).

Standards / designations
EN 1563 SYM (EU) EN-GJS-500-7

EN 1563 NR (EU) EN-JS1050

DIN 1693 (DE) GGG50

WERKSTOFFNUMMER (DE) 0.7050

ASTM A536-584 (US) 88/55/06

ALT GGG 50, GGG-50

Mechanical properties
Tensile strength Rm 500 [N/mm2]

Yield point σ 0.2B 320 [N/mm2]

Elongation A 7 [%]

Brinell hardness HB30 170-230

Elasticity modulus Eo 169 [kN/mm2]

Notch impact strength at 20 °C. Av 3.5 [Joule]

Compressive strength σ dB 900 [N/mm2]

Shear stress σaB 450 [N/mm2]

Ferrite content 40-90 [%]

Nodularity type I+II min. 85 [%]

Chemical composition
Carbon C 3.4-3.85 [%]

Silicon Si 2.3-3.1 [%]

Manganese Mn 0.1-0.3 [%]

Sulphur S 0.02 max. [%]

Phosphorus P 0.10 max. [%]

Iron Fe Remainder

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