Types of Cast Iron
Cast iron comes in five types — gray, ductile, compacted graphite, white and malleable — and what separates them is
Metals & Grades
Metals & Grades
Metals & Grades
How to Tell If It’s Cast Iron or Cast Steel?
A spark test, a chisel cut or a fresh fracture places an unmarked part on one side or the other,
Metals & Grades
What Is the ASTM Standard for Cast Iron
There is no single ASTM standard for cast iron. ASTM publishes a family of separate iron-casting specifications under Committee A04,
Metals & Grades
What Are the Different Grades of Ductile Iron?
Ductile iron grades are sets of minimum mechanical properties defined by two standards: ASTM A536 in North America, with five
Metals & Grades
Ductile Iron Heat Treatment
Heat treatment changes the matrix of a ductile iron casting — to ferrite, pearlite, tempered martensite or ausferrite — and
Metals & Grades
Cast Steel vs Cast Iron
Choose cast steel when the part must take impact, bending or internal pressure and yield before it breaks; choose cast
Metals & Grades
Ductile Iron vs. Gray Iron: What’s the Difference
The difference between ductile iron and gray iron is the shape of the graphite: ductile iron carries it as spheroids,