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Characteristics of GGG50

Characteristics of GGG50

GGG50 is a type of nodular cast iron and refers to a certain quality standard. Some typical features of GGG50 are:

  1. Chemical Composition : The typical chemical composition of GGG50 nodular cast iron is generally approximately 3.4-3.9% carbon, 2.0-2.9% silicon, 0.2-0.6% manganese, 0.03% maximum sulfur and Contains 0.03% maximum phosphorus. These components determine the mechanical properties and nodular structure of iron.
  2. Strength Properties : GGG50 cast iron generally has a high compressive strength. Tensile strength is also high. These properties are important indicators of the mechanical strength and durability of nodular cast iron.
  3. Casting Properties : GGG50 has good casting properties. This feature is important in the production of parts with complex geometries and in achieving precise tolerances.
  4. Thermal Machinability : GGG50 cast iron is not suitable for thermal processes such as hardening and tempering. However, control over microstructure and mechanical properties can be achieved through post-casting heat treatments.
  5. Wear Resistance : GGG50 can be a wear-resistant material. This feature is a factor that increases the wear resistance of the nodular structure.

GGG50 nodular cast iron is commonly used in a variety of industrial applications such as automotive, machinery manufacturing, agricultural equipment, hydraulic systems, bridge and construction parts. It is preferred in many applications due to its strength, casting properties and wear resistance. However, material selection for a particular application must be made based on specific requirements, cost factors and environmental conditions.

Standards / definitions

EN 1563 SYM (EU) TR-GJS-500-7

EN 1563 NR (EU) EN-JS1050

DIN 1693 (DE) GGG50

WERKSTOFFNUMMER (DE) 0.7050

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

LOWER 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 30 YTL 170-230  

Elasticity modulus Well that's it 169 [kN/mm2]

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

Compressive strength σ dB 900 [N/mm2]

shear voltage σ aB 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 [%]

Sulfur S 0.02 max. [%]

Phosphorus P. 0.10 max. [%]

Iron Fe Remainder