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Home/Reference Data/Binary Phase Diagrams/Fe-C/Acm-boundary-hypereutectoid

Acm-Boundary-Hypereutectoid — Fe-C

Alloy System
Fe-C
Invariant Point Or Boundary
Acm Boundary Hypereutectoid
Component 1 Name
C
Composition 1 Wt Pct (wt%)
2.11
Engineering Significance
Defines Upper Carbon Limit for Steel vs Cast Iron classification; Critical for Casting Design
Phase Alpha
Austenite
Phase Beta
Cementite
Phase Description
Maximum Carbon Solubility in austenite; Boundary Between Steel and Cast Iron
Reaction Type
Phase Boundary
Temperature C (C)
1,148
Fe-C — invariant point or boundary Acm_boundary_hypereutectoid · engineering significance Defines upper carbon limit for steel vs cast iron classification; critical for… · phase description Maximum carbon solubility in austenite; boundary between steel and cast iron · composition 1 wt pct 2.11 wt% · temperature C 1148 C | Binary Phase Diagrams | Engineering Database