Castings

Casting is a manufacturing process by which a liquid material is usually poured into a mold or die, which contains a hollow cavity of the desired shape, and then allowed to solidify. The solidified part is also known as a casting, which is ejected or broken out of the mold to complete the process. Casting materials are usually metals or various cold setting chemistry after mixing two or more components together. Casting is most often used for making complex shapes that would be otherwise difficult or uneconomical to make by other methods.

Centrifugal Casting

Centrifugal Cast Drawing

Horizontal Centrifugal Casting 

Vertical Centrifugal Casting

Vertical Centrifugal Casting

 

Centrifugal casting is a method where a permanent mold is rotated continuously about its axis at high speeds as the molten metal is poured. The molten metal is centrifugally thrown towards the inside mold wall, where it solidifies after cooling. The casting is usually a fine grained casting with a very fine grained outer diameter, owing to chilling against the mold surface. Impurities and inclusions are thrown to the surface of the inside diameter, which can be machined away.

Continuous Castings

Continuous casting, also called strand casting, is the process whereby molten metal is solidified into a “semi finished” “Billet, bloom, or slab for subsequent rolling in the finishing mills. Prior to the introduction of continuous casting in the 1950s, steel was poured into stationary molds to form ingots. Since then, “continuous casting” has evolved to achieve improved yield, quality, productivity and cost efficiency. It allows lower-cost production of metal sections with better quality, due to the inherently lower costs of continuous, standardized production of a product, as well as providing increased control over the process through automation.

 

Continuous castings

Sand / Static / Pattern Casting

Sand casting also known as sand molded casting, is a metal casting process characterized by using “Sand” as the mold material. The term “sand casting” can also refer to an object produced via the sand casting process.

Sand casting is relatively cheap and sufficiently refractory even for steel foundry use. In addition to the sand, a suitable bonding agent (usually clay) is mixed or occurs with the sand. The mixture is moistened, typically with water, but sometimes with other substances, to develop strength and plasticity of the clay and to make the aggregate suitable for molding. The sand is typically contained in a system of frames or mold boxes known as a flask. The mold cavities gate system are created by compacting the sand around models, or patterns, or carved directly into the sand.

Pattern castings can also be made from Wood, Aluminum and Foam.

sand casting

Castings

A-217
Steel Castings, Martensitic Stainless and Alloy, for Pressure-Containing Parts, Suitable for High-Temperature Service, Grades: C5, C12, C12A, CA15, WC1, WC4, WC5, WC6, WC9, WC11
A-297
Steel Castings, Fe-Cr and Fe-Cr-Ni, Heat Resistant, for General Applicatioin, Grades: HF, HH, HI, HK, HE, HT, HU, HW, HX, HC, HD, HL, HN, and HN
A-351
Castings, Austenitic, for Pressure-Containing Parts, Grades: CD3MWCuN, CD4MCu, CE20N, CE8MN, CF10, CF10M, CF10MC, CF3, CF3A, CF3M, CF3MA, CF3MN, CF8, CF8A, CF8C, CF8M, CG3M, CG6MMN, CG8M, CH10, CH20, CH, CK20, CK3MCuN, CN3MN, CN7M, CT15C, HK30, HK40, HT30, CF10SMnN
A-436
Austenitic Gray Iron Castings, Grades: Ni-Resist Type 1, 1b, 2b, 3, 4, 5 and 6
A-439
Austenitic Ductile "Ni-Resist" Iron Castings, Grades: D-2, D-2B, D-2C, D-3, D-3A, D-4, D-5, D-5B, D-5S
A-487
Steel Castings Suitable for Pressure Service, Grades: CA15, CA40, CA6NM, 10B-4330
A-494
Castings, Nickel and Nickel Alloy, Grades: CU5MCuC, CW2M, CW6M, CW6MC, CW12MW, CX2M, CY5SnBiM, CY40, CX2MW, CZ100, M25S, M30C, M30H, M35-1, M35-2, N7M, N12MV
A-597
Cast Tool Steel, CA-2, CD-2, CD-5, CS-5, CM-2, CS-7, CH-12, CH-13, CO-1
A-743
Castings, Fe-Cr and Fe-Cr-Ni, Corrosion Resistant, for General Application, Grades: CA40, CA40F, CA6NM, CA6N, CB30, CB6, CC50, CE30, CF10SMnN, CF16F, CF20, CF3, CF3M, CF3MN, CF8, CF8C, CF8M, CG12, CG3M, CG6MMN, CG8M, CH10, CH20, CK20, CK35MN, CK3MCuN, CN3M, CN3MN, CN7M, CN7MS
A-744
Castings, Fe-Cr-Ni, Corrosion Resistant, for Severe Service, Grades: CF3, CF3M, CF8, CF8C, CF8M, CG3M, CG8M, CK3MCuN, CN3MN, CN7M, CN7MS
A-747
Steel Castings, Stainless, Precipitation Hardening, Grades: CB7Cu-1 17-4PH, CB7Cu-2 15-5PH
A-890
Castings, Fe-Cr-Ni-Mo Iron-Chromium-Nickel-Molybdenum Corrosion-Resistant, Duplex (Austenitic/Ferritic) for General Application, Grades: CD4MCu, CD4MCuN, CD3MCuN, CE8MN, CD6MN, CD3MN, CE3MN, CD3MWCuN
B-271
Copper-Base Alloy Centrifugal Castings, Grades: C836, C838, C844, C848, C852, C854, C857, C862, C863, C864, C865, C867, C873, C874, C875, C903, C905, C922, C923, C935, C937, C938, C943, C952, C953, C954, C955, C95520, C958, C973, C976, C978
B-369
Copper-Nickel Alloy Castings, 90-10 C96200, 70-30 C96400
B-438
Sintered Bronze Bearings (oil-Impregnated) "Oilite" SAE841
B-439
Iron-Base Sintered Bronze Bearings (oil-Impregnated) "Super Oilite" SAE863
B-505
Copper Alloy Continuous Castings, Grades: C836, C838, C842, C844, C848, C862, C863, C864, C865, C903, C905, C907, C910, C913, C922, C923, C925, C927, C928, C929, C932, C934, C935, C937, C938, C940, C941, C943, C947, C948, C952, C953, C954, C955, C95520, C958, C964, C973, C976, C978
B-584
Copper Alloy Sand Castings for General Applications, Grades: C83450, C836, C838, C844, C848, C852, C854, C857, C862, C863, C864, C865, C867, C873, C874, C875, C876, C87610, C87710, C87845, C87850

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