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EN-GJL-250 (+P) | 5.1301 Increased phosphorus content, graphite classification and fracture appearance in tensile test - 14
EN-GJL-250 (+P) | 5.1301 Increased phosphorus content, graphite classification and fracture appearance in tensile test - 01
EN-GJL-250 (+P) | 5.1301 Increased phosphorus content, graphite classification and fracture appearance in tensile test - 02
EN-GJL-250 (+P) | 5.1301 Increased phosphorus content, graphite classification and fracture appearance in tensile test - 03
EN-GJL-250 (+P) | 5.1301 Increased phosphorus content, graphite classification and fracture appearance in tensile test - 04
EN-GJL-250 (+P) | 5.1301 Increased phosphorus content, graphite classification and fracture appearance in tensile test - 05
EN-GJL-250 (+P) | 5.1301 Increased phosphorus content, graphite classification and fracture appearance in tensile test - 06
EN-GJL-250 (+P) | 5.1301 Increased phosphorus content, graphite classification and fracture appearance in tensile test - 07
EN-GJL-250 (+P) | 5.1301 Increased phosphorus content, graphite classification and fracture appearance in tensile test - 08
EN-GJL-250 (+P) | 5.1301 Increased phosphorus content, graphite classification and fracture appearance in tensile test - 09
EN-GJL-250 (+P) | 5.1301 Increased phosphorus content, graphite classification and fracture appearance in tensile test - 10
EN-GJL-250 (+P) | 5.1301 Increased phosphorus content, graphite classification and fracture appearance in tensile test - 11
EN-GJL-250 (+P) | 5.1301 Increased phosphorus content, graphite classification and fracture appearance in tensile test - 12
EN-GJL-250 (+P) | 5.1301 Increased phosphorus content, graphite classification and fracture appearance in tensile test - 13
EN-GJL-250 (+P) | 5.1301 Increased phosphorus content, graphite classification and fracture appearance in tensile test - 14
EN-GJL-250 (+P) | 5.1301 Increased phosphorus content, graphite classification and fracture appearance in tensile test - 15
EN-GJL-250 (+P) | 5.1301 Increased phosphorus content, graphite classification and fracture appearance in tensile test - 16
EN-GJL-250 (+P) | 5.1301 Increased phosphorus content, graphite classification and fracture appearance in tensile test - 17
EN-GJL-250 (+P) | 5.1301 Increased phosphorus content, graphite classification and fracture appearance in tensile test - 18
EN-GJL-250 (+P) | 5.1301 Increased phosphorus content, graphite classification and fracture appearance in tensile test - 19
EN-GJL-250 (+P) | 5.1301 Increased phosphorus content, graphite classification and fracture appearance in tensile test - 20
EN-GJL-250 (+P) | 5.1301 Increased phosphorus content, graphite classification and fracture appearance in tensile test - 21

EN-GJL-250 (+P) | 5.1301 Increased phosphorus content, graphite classification and fracture appearance in tensile test

Numeric designation5.130
Chemical designationEN-GJL-250 (+P)
StateIncreased phosphorus content
Etching3% Nital

An increased phosphorus content was set for this sample. It results in higher wear resistance and better corrosion resistance. Cast iron with lamellar graphite, approx. 95% pearlitic matrix with ferrite and phosphide eutectic.
The microhardness of the phosphide eutectic (steadite) is 857 HV0.05.

Graphite classification according to EN ISO 945-1:2019

  • Graphite form I
  • Arrangement E
  • Guide number for the size range: 5

The SEM images show a force fracture by tensile testing. A transcrystalline, brittle violent fracture is present. The lamellar pearlite is clearly visible in the detailed images.

Cast Iron

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