Castings

Marmetal can supply many different shapes and sizes in various alloys through all types of castings. Our extensive experience will help you find the right solution. Contact us today with your requirements and we’ll find the right solution for your next casting project. Common uses for cast products include bridge plates, wear plates, gear blanks, bushings, bearings and guides.

For more information, we highly recommend downloading the Copper Development Association’s Copper Casting Guide.

Sand Cast

To produce sand castings, molten metal is poured in to a sand mold and allowed to cool and solidify in to the shape of the mold.  Sand castings can be produced in wide range of sizes and are ideal for basic shapes when affordability and quick turnaround are important.  Sand castings are not suitable for complex shapes and large production run or for projects where surface finish is of importance.

                         Specifications

ASTM B22           ASTM B61        QQ-B-671
ASTM B148         ASTM B427      QQ-C-390
ASTM B584

                         Common Alloys

C83600      C85400      C86300      C86500
C90300      C92200      C93200      C93700

Continuous Cast

To produce continuous castings, molten metal is passed through a die which cools and solidifies the metal in to the desired shape.  A series of temperature controlled rollers complete the tempering process allowing for control over the grain structure and mechanical properties.  As a result, continuous cast products have greater durability and excellent machinability compared to conventional castings.  Continuous Casting is ideal for the manufacture of a wide range of semi-finished profiles, including solid and hollow bars round bars, tubes and flats.

                          Specifications

ASTM B22           ASTM B505        QQ-C-390
ASTM B427

                         Common Alloys

C86300      C90300      C90500      C90700
C92200      C93700      C95400      C95500
C95510      C95520      C95800      C95900

Centrifugal Cast

To produce centrifugal castings, molten metal is poured in to a spinning hollow mold, on either a horizontal or vertical axis.  The liquid metal is forced outward and solidifies in to the shape of the mold while impurities migrate to the ID where they are removed through subsequent machining.  This process leads to a casting that is more dense, resulting in a product with greater machinability and less fatigue compared to other casting methods.

                       Specifications

ASTM B22           ASTM B271        ASTM B427

                      Common Alloys

C83600     C86300     C87300     C90300
C92200     C93200     C93700     C95500
C95510     C95510     C95520     C95800