Farrar Corporation & Foundry
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About Farrar Corporation
The Farrar Corporation has two locations: a ductile iron foundry and machining facility in Norwich, Kansas and a second machining facility in Manhattan, Kansas. Farrar has been in operation since 1931 and specializes in machined ductile iron castings and assemblies. The foundry's capabilities include casting design and technical assistance, casting pattern design, casting production, heat treating, casting painting and assembly as well as finish machining. Farrar is an ISO 9001:2000 quality certified company.
Ductile Iron Foundry
The Farrar Corporation has poured all grades of ASTM A536 Ductile Iron since 1967 and specializes in castings of 2 lbs - 70 lbs in production runs of 100-100,000. Farrar is unique[neutrality is disputed] in that its foundry is a nationally recognized producer of the highest quality Austempered Ductile Iron (ADI)- iron that meets or exceeds the strength of steel.
The foundry is located in Norwich, Kansas with an adjoining machine shop that can provide its customers with turn-key casting solutions. The foundry frequently provides prototypes for customers' ductile iron castings that can help identify design flaws and weaknesses before that casting run is put into production. This unique[neutrality is disputed] ability allows Farrar to conserve resources and save its customers from making costly mistakes.
The plant is capable of handling 70 tons of melt per day with an anticipated expansion to 120 tons[original research?].
Ductile Iron Specifications
Ductile iron is an economical alternative to steel due to its increased strength, improved performance and reduced cost. Below is a chart of the foundry's ductile (nodular) iron specifications:
|Specifying Body (¹)||Spec No. (²)||Use||Class or Grade||Min.Tensile psi (¹³)||Min., Yield psi (14)||% Elongation||Heat Treatment||Other Requirements|
|ASTM||A536-84||Shock resistance at low temperatures||60-40-18||60,000||40,000||18||May require a full Anneal||Chemical composition is subordinate to mechanical properties; however, the content of any chemical element may be specified by mutual agreement.|
|Most commonly used grade.||65-45-12||65,000||45,000||12|
|Suitable for flame and induction hardening.||80-55-06||80,000||55,000||6|
|For strength and wear resistance.||100-70-03||100,000||70,000||3||Quench Temper|
|Maximum strength and wear resistance.||120-90-02||120,000||90,000||2||Usually Quenched|
|ASTM||A395-88||Pressure containing parts for use at elevated temperatures.||60-40-18||60,000 (15)||40,000||18||Ferritized by annealing||%TC, %Si, %P, %S, %C.E.(19), BHN|
|ASME||SA395||Pressure containing parts for use at elevated temperatures||Min, Max, 3.0, 2.50, 0.08, 143, 187 </tbody>|
Ductile Iron Machining Facilities
The Farrar Corporation's machine shop specializes in CNC turning, CNC milling, drilling, broaching and gear cutting. With facilities in Norwich and Manhattan, Kansas, Farrar has the flexibility and capacity that few other foundries can offer[neutrality is disputed]. Farrar has been providing fully machined castings since 1950's and have developed processes that maximize their efficiency and minimize customer costs.