Gray and Ductile Iron Foundries
These are some iron foundries specializing
to produce gray and ductile iron castings.
1. Dandong Foundry
Dandong Foundry is a professional iron foundry located in China.
They have over 50 years experiences in iron casting, steel casting
and machining fields.
iron and steel castings for stoves, boilers, tractors, trucks,
pumps, valves, pipe fittings,
manholes and tugboats etc. the unit weight is up to 1.5 ton.
Gray iron from class 20 to 35.
Ductile iron from class 60-40-18 to 80-60-03.
Mild and high carbon cast steel.
The casting workshops include FBO automatic molding line, resin sand
molding, green sand molding and shell molding process. They have
various machining equipments to complete the rough and finish
machining works in house, and can issue the chemical and mechanical
2. Decatur Foundry
Decatur is the foundry to provide high-quality castings. They are in
the U.S. state of 1745 North Illinois Street. In the 1970's, the
Decatur Foundry expanded into supplying gray and ductile iron
castings to pump, valve and electric motor industries.。
2 Induction Coreless furnaces
Melt Capacity - 1,200 Tons Per Month
Class 25 to Class 45 grey iron all to ASTM Specifications
High alloy Ductile and Grey Iron
Pearlitic and Ferritic Ductile
Casting Size: 50 to 15,000 pounds
Achieved the standard:
Gray iron CL25 to CL45 in ASTM grades A48, A126, A159, A278, and
Ductile iron ASTM grades A395 and A536. Complete ductile service
ferritic to pearlitic. 60-40-18 to 100-70-03 as cast or heat
Customized Slow-Mold cooling stress relieved castings.
The scope of their production:
Gray Iron - 50 to 12,000 pounds.
Ductile Iron - 50 to 12,000 pounds.
3. Calhoun Foundry
Located in Homer, Michigan, Calhoun Foundry Company is a family
owned grey and ductile iron foundry. Using Hunter 14”x 19” and 20”x
24” Automated greensand molding machines, produces castings for a
variety of industries including, automotive, agriculture, and
Gray irons: G20; G25; G30; G35
Ductile irons: 60-40-18； 65-45-12； 80-55-06； 100-70-03
Melting: Capacity 80T/day
Calhoun Foundry has value added operations which include: heat
treating, grinding, polishing, coating and machining.
4. Hodge foundry
Founded in 1876 and located in Greenville, Pennsylvania, Hodges
foundry is an international professional engineering casting
production high quality complex gray and ductile iron castings
Their Manufacturing Facilities:
Hodge Foundry’s manufacturing facilities include ten pits of various
sizes, five continuous sand mixers, three 30-ton vertical channel
induction furnaces, and an assortment of overhead crane capabilities
ranging from 10 up to 100 tons.
The scope of their production:
Since 1876, Hodge Foundry has been a leading manufacturer of large
gray and ductile iron specialty castings ranging from 3,000 to
200,000 pounds. While maintaining a strong presence in the global
mining, energy and industrial markets over the years.
5. O.K. Foundry
Ok foundry is a family owned foundry since 1912 in the United States
of Virginia. Although they are small, they use modern high frequency
induction furnaces to melt gray and ductile iron. These fast melt
furnaces allow us to make smaller batches of metal with tightly
controlled metallurgy adjusted to match customer and job
Your options with OK Foundry include:
Gray and ductile iron castings up to 700 lbs.
Green sand squeezer molding for gray and ductile iron.
No-bake molding for gray and ductile iron.
Prototype and short run casting of gray and ductile iron.
Some typical applications for our gray and ductile iron castings
Machinery bases, housings, and brackets.
Pump bases, brackets, and housings.
Gear, cam, and follower blanks.
6. Dakota foundry
Dakota Foundry Inc., a manufacturer of gray and ductile iron
castings, located in Webster South Dakota. At Dakota Foundry,
experience is plentiful. Their production personnel have over 200
years of combined experience in the Foundry business.
Their gray iron castings and ductile iron castings:
Gray iron castings from ounces to 5,000 pounds
Mechanical Properties Class 30 Class 35 Class 40 Class 45 Class 50
Tensile Strength (PSI) 30,000 35,000 40,000 45,000 50,000
BHN (Typical) 170-241 187-241 187-255 196-255 196-269
Wall Thickness 3/16" 3/8" 1/2" 5/8" 3/4"
Ductile iron castings from ounces to 3,000 pounds
Mechanical Properties 60-40-18 65-45-12 80-55-06 100-70-03
Tensile Strength (Min PSI) 60,000 65,000 80,000 100,000
Yield Strength (Min PSI) 40,000 45,000 55,000 70,000
Minimum Elongation in 2” 18% 12% 6% 3%
BHN (Typical) 143-187 156-217 187-255 240-302
7. Saguenay Foundry
Saguenay Foundry is a world-class iron foundry specialized in CGI,
gray iron and ductile iron castings. They are an accredited supplier
by the Lloyd's Register for ductile iron parts up to 5,570 kg
Types of alloys produced:
Gray iron castings: ASTM A-48, ASTM A-278, ASTM A-319
Ductile iron castings: ASTM A-536, DIN EN-GJS
Saguenay Foundry can cast the following:
Gray iron from 113 to 6818 kg
Ductile iron and Compacted Graphite Iron (CGI) from 113 to 5455 kg
8. Gartland foundry
Gartland Foundry is located in Terre Haute, Indiana, in the center
of Mid-America. The Gartland Foundry has long been known as the
leader in highly machinable castings with short lead times and
tremendous on-time delivery capabilities.
Industries Served Include:
Agriculture, Automotive, Electric Motor, Oil and Natural Gas, Water
Iron Casting Products Include:
Brackets, Gears, Motor Frames, Valves, Water Pumps, Kettlebells
Two 8,000-lb., coreless induction melting furnaces, rated at 5 tons
Baldor Electric Generator for electrical power backup to furnace
water pumps, coolers, hydraulics.
9. Mid-City Foundry
Mid-City Foundry Company began in Milwaukee, Wisconsin as a small,
gray iron foundry producing engine castings. Milwaukee Division
produces complex gray, ductile, compacted graphite, High Silicon-Moly
ductile and alloyed iron castings using air set molding with weights
ranging from 80 to 3,000 lbs.
Their capabilities include:
Jobbing and semi-production of gray, ductile and alloyed iron
castings at two facilities
Producing castings of medium to complex design
Specializing in, but not limited to, thin walled, pressure
containing or metallurgical stringent requirements
Flexible manufacturing facilities engineered to accept existing as
well as newly designed pattern equipment
Flexible and adaptable processes with an emphasis on controlled cost
and consistent quality.
10. Penticton Foundry
Penticton Foundry is a full service foundry. They've been producing
ductile iron castings, gray iron castings, and high chrome white
iron castings for clients across North America from our foundry in
Penticton, British Columbia, Canada since 1935.
Their main products are ductile iron and gray iron castings.
A536 Grade 60-40-18 150 - 180 BHN Grade with maximum ductility and
low temperature toughness,
A536 Grade 65-45-12 180 - 210 BHN
A536 Grade 80-55-06 210 - 250 BHN High strength, good wear
resistance, moderate ductility and
impact resistance, good machinability.
A536 Grade 100-70-03 250 - 300 BHN
A536 Grade 120-90-02 300 - 360 BHN Very high strength and wear
resistance, normal machinability.
A48 Class 20 110 - 140 BHN Excellent machinability and damping
capacity. Good resistance to thermal shock.
A48 Class 30 150 - 180 BHN.
A48 Class 40 220 - 250 BHN Wear resistance increases, strength
increases, finer finish after machining.
11. Benton foundry
Benton is a small town in rural Pennsylvania. Benton foundry is a
state-of-the-art gray and ductile iron jobbing foundry. On a daily
basis, Benton runs the gamut: pumps, valves, gear boxes, manifolds,
and more... from simple non-cored jobs, to water jacketed work and
moderate volume work with up to 21-core assemblies.
Benton pours class 25, 30, 35, 40, and several Heat Resistant Iron
grades. From a common ductile iron base, 60-40-18 (as cast or
annealed), 65-45-12, 80-55-06, 100-70-03, 120-90-02 and ADI grades 1
through 5 are poured.
Gray Iron Advantages:
Resistance to cracking
High temperature properties
Inexpensive to produce and to finish
Produces repeatable metal products
Offers castings with significant cast-in features and details
Ductile Iron offers the castability, machinability, and corrosion
resistance of gray iron while adding the high strength, ductility,
and hardening ability of steel. Their ductile iron castings are well
known throughout the industry for high-impact resistance and a high
modulus of elasticity and strength, resulting in heavier load
capacity with less deflection.
12. Winnebago foundry
Winnebago is a jobbing foundry producing gray and ductile iron
castings from ounces to 3000 lb. They pour gray iron in Class 20, 30
& 40 and ductile irons 60-40-18, 65-45-12, 80-55-06 and 100-70-03.
We can produce high silicon, molybdenum alloyed ductile irons such
as Cat 1E1299 and offer some specialty irons such as Hi-Sil Moly
A brief overview of what they offer:
Replace multiple component assemblies with a single ductile iron
improving machine reliability and strength at a lower cost.
Also known as “cast iron”, gray iron is suited for a variety of
industries ,including, heavy, machinery, gray iron valves and