Your source for raw and
machined complete Gray Iron Castings.
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We represent the best gray iron foundries in the USA
and back it up with professional and ongoing service.
Carson Castings (Foundry-Source.com) specializes in
Gray Iron weighing 1# to 5000# and up to 120”x120”.
For over five decades Carson Castings (Foundry-Source.com) has been supplying
many types of industries with their casting needs.
With our specific focus we offer our clients:
- Expertise in our field - We deal strictly in the sourcing of castings and
machined castings. Highly specialized in gray iron.
- Added Value - We can provide raw castings or complete assemblies and
everything in between (painting, heat treat and machining).
- Tooling Options – No-bake and green sand molding. Floor, manual, squeezer, cope
and drag, Hunter, Sinto, B&P and Disa molding processes.
- Industry Knowledge - Our years of experience in the casting field ensure we
place your work at a facility suited to your project’s
unique needs.
Contact Matt today at 419-891-2231 or info@foundry-source.com
for a hassle-free, no-obligation quote.

download our Gray Iron brochure
Foundry-Source is your source for gray iron foundries
Gray iron was the original cast iron. It is an alloy of carbon, silicon, and iron, containing from 1.7 to 4.5% C and 1 to 3% Si. It is relatively easy and inexpensive to make. Compared to the more modern engineered irons, gray iron has a lower tensile strength
Much of the annual production of gray iron is in the form of gray iron engine blocks, gray iron valves and gray iron pump housings. Gray cast iron is made in a gray iron foundry.
Foundry-Source works with gray iron foundries with automated molding machines, high pressure machines; gray iron casting capability includes the cost efficient manufacture of large gray iron castings. Foundry-Source has gray iron foundries with several specialized furnaces used to melt the gray iron.
Foundry-Source also works with small gray iron casting foundries that uses molding machines. The machines produce castings of gray iron ranging from a few pounds to more than 200 pounds.
The finished product of gray iron foundries can be more geometrically complex than the product of a rolling, forging, or machining process like milling or turning. Gray iron foundries are the original way to produce near net shape parts.
Foundry-Source will find you the right gray iron foundries to make your parts in.
Our gray iron foundries have the right grade of gray iron you need:
- Gray iron ASTM A48 class 20 G20 G2000
- Gray iron ASTM A48 class 25 G25 G2500
- Gray iron ASTM A48 class 30 G30 G3000
- Gray iron ASTM A48 class 35 G35 G3500
- Gray iron ASTM A48 class 40 G40 G4000
- Gray iron ASTM A48 class 45 G45 G4500
- Gray iron ASTM A48 class 50 G50 G5000
We also can provide equivalents to European grade gray iron:
- EN-GJL-150 aka DIN 1691 – GG15
- EN-GJL-200 aka DIN 1691 – GG20
- EN-GJL-350 aka DIN 1691 – GG25
- EN-GJL-300 aka DIN 1691 – GG30
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