Understanding the different kinds of cast and wrought iron can help you make the best selection for your project or your new piece of furniture. Read on to learn more!
Ferritic Ductile Iron (ASTM A536)
This is the most machinable grade.. The ferritic structure provides for excellent machinability with good surface finishes. It has optimal impact strengths and fatigue properties, and comes in a large selection of tubes, solid rounds, rectangles and squares.
Tensile Strength: 65,000 psi
Yield Strength: 45,000 psi
Elongation: 12%
Partially Pearlitic Ductile Iron (ASTM A536)
The pearlite in this grade makes it more wear resistant and stronger than a mostly ferritic grade. Machinability, response to heat treat and surface finishes are good. It comes in a large selection of tubes, solid rounds, rectangles and squares.
Tensile Strength: 80,000 psi
Yield Strength: 55,000 psi
Elongation: 6%
Highly Pearlitic Gray Iron (Conforms to ASTM A48, Class 40)
This is the most common gray iron. It is well suited for applications requiring high resistance to wear and responds well to heat treatment. It comes in a large selection of tubes, solid rounds, rectangles and squares.
