Investment Casting Foundry | Sand Casting

Stainless Steel Castings, Grey Iron Castings, Ductile Iron Castings

Sand Casting Product made of Stainless Steel

Short Description:

Casting Metals: Cast Stainless Steel 

Casting Manufacturing: Sand Mold Casting + Machining

Weight: 3.50 kg

Heat Treatment: Annealing + Solution

 

OEM custom stainless steel casting produced by sand casting with custom CNC machining services based on your requirements and drawings. Available surface treatment: Painting, Anodizing, Passivation, Electroplating, Zinc-plating, Hot-Zinc-Plating, Polishing, Electro-Polishing, Nickel-Plating, Blackening, Geomet, Zintek

 


Product Detail

Product Tags

Sand casting uses green sand (moist sand) or dry sand to form the molding systems. The green sand casting is the oldest casting process used in history. When making the mold, the patterns made of wood or metal should be produced in order to form the hollow cavity. The molten metal then pour into the cavity to form the castings after cooling and solidification. Sand casting is less expensive than other casting processes both for mold development and unit casting part. The sand casting, always mean the green sand casting (if no special description). However, nowadays, the other casting processes are also use the sand to make the mold. They have their own names, such as shell mold casting, furan resin coated sand casting (no bake type), lost foam casting and vacuum casting.

We have different casting types for your choice. Part of the optional process for your project will be the selection of the casting process that will best serve your needs. The most popular form is sand casting which involves making a replica of a finished piece (or pattern) that is compressed with sand and binder additives to shape the final casting. The pattern is removed after the mold or impression has been formed, and the metal is introduced through a runner system to fill the cavity. The sand and the metal are separated and the casting cleaned and finished for shipment to the customer.

Sand Casting VS Shell Mold Casting:
Both sand casting and shell mold casting use the sand to make the hollow cavity for pouring. The difference is that sand casting uses green sand or dry sand (lost foam casting and vacuum casting use the dry sand to make mold), while the shell mold casting uses the resin coated sand to make the molding systems. The coated sand could not be re-used. However, the shell mold castings have much better quality than that of sand castings.

Sand Casting VS Investment Casting:
These two casting processes are different in the molding materials used for making the patterns. Investment casting uses the wax to produce the wax replicas (that is why it is also called lost wax casting) which have the same size and dimensions as the desired castings. Then the wax replicas will be coated with sand and binder materials (usually silica sol or water glass) to build a strong shell for molten metal pouring. While, the sand casting usually adopt the green sand or dry sand to make a hollow cavity, which have the same size and dimensions as the desired casting parts. For both sand casting and investment casting processes, the sand and wax could be re-used. The investment castings usually have much better surface, geometrical and dimensional accuracy than sand castings. 

The casting tolerances are divided into Dimensional Casting Tolerances (DCT) and Geometrical Casting Tolerances (GCT). Our foundry would like to talk with you if you have special request on the required tolerances. Here in the following are the general tolerances grade we could reach by our green sand casting, shell mould casting and no-bake furan resin sand casting:
✔ DCT Grade by Green Sand Casting: CTG10 ~ CTG13
✔ DCT Grade by Shell Mold Casting or Furan Resin Sand Casting: CTG8 ~ CTG12
✔ GCT Grade by Green Sand Casting: CTG6 ~ CTG8
✔ GCT Grade by Shell Mold Casting or Furan Resin Sand Casting: CTG4 ~ CTG7

Advantages of Sand Casting Process
1- Low Cost due to its cheap and recyclable mold materials and simple production equipment.
2- Wide range of unit weight from 0.10 kg to 500 kgs or even bigger.
3- Various Structure from simple type to complex type.
4- Suitable for production requirements of various quantity.

Sand Casting Capabilities at RMC Foundry

Materials for Sand Casting Process at RMC Foundry
Category China Grade US Grade Germany Grade
Ferritic Stainless Steel 1Cr17, 022Cr12, 10Cr17,  430, 431, 446, CA-15, CA6N, CA6NM 1.4000, 1.4005, 1.4008, 1.4016, GX22CrNi17, GX4CrNi13-4
Martensitic Stainless Steel 1Cr13, 2Cr13, 3Cr13, 4Cr13,  410, 420, 430, 440B, 440C 1.4021, 1.4027, 1.4028, 1.4057, 1.4059, 1.4104, 1.4112, 1.4116, 1.4120, 1.4122, 1.4125
Austenitic stainless steel 06Cr19Ni10, 022Cr19Ni10,
06Cr25Ni20, 022Cr17Ni12Mo2, 03Cr18Ni16Mo5
302, 303, 304, 304L, 316, 316L,   329, CF3, CF3M, CF8, CF8M, CN7M, CN3MN 1.3960, 1.4301, 1.4305, 1.4306, 1.4308, 1.4313, 1.4321, 1.4401, 1.4403, 1.4404, 1.4405, 1.4406, 1.4408, 1.4409, 1.4435, 1.4436, 1.4539, 1.4550, 1.4552, 1.4581,
1.4582, 1.4584, 
Precipitation Hardening Stainless Steel 05Cr15Ni5Cu4Nb, 05Cr17Ni4Cu4Nb 630, 634, 17-4PH, 15-5PH,  CB7Cu-1 1.4542
Duplex Stainless Steel 022Cr22Ni5Mo3N, 022Cr25Ni6Mo2N A 890 1C, A 890 1A, A 890 3A, A 890 4A, A 890 5A, A 995 1B, A 995 4A, A 995 5A, 2205, 2507 1.4460, 1.4462, 1.4468, 1.4469, 1.4517, 1.4770

 

China stainless steel sand casting company
green sand casting foundry

Sand Mold Casting Foundry

China green sand mold casting foundry

Sand Mold Casting Foundry in China


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