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Farrar Corporation is an American iron foundry and machining company.
The Farrar Corporation has two locations: a ductile iron foundry and machining facility in Norwich, Kansas and a second machining facility in Manhattan, Kansas. Founded in 1931, Farrar 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.
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. [1]
The foundry is located in Norwich, Kansas with an adjoining machine shop, allowing it to offer turn-key casting service. The foundry can provide prototypes for customers' ductile iron castings that can help identify design flaws and weaknesses before that casting run is put into production.
The plant is capable of handling 70 tons of melt per day with an anticipated expansion to 120 tons[ original research? ].
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 | |||
| Special Applications | 60-42-10 70-50-05 80-60-03 | 60,000 70,000 80,000 | 42,000 50,000 60,000 | 10 5 3 | ||||
| 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 |
The Farrar Corporation's machine shop specializes in CNC turning, CNC milling, drilling, broaching and gear cutting. [2] With facilities in Norwich and Manhattan.
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