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Stainless Steel Castings, Grey Iron Castings, Ductile Iron Castings

Custom Resin Sand Mold Casting of Stainless Steel

Short Description:

Austenitic stainless steel refers to stainless steel with an austenitic structure at room temperature. Austenitic stainless steel is one of the five classes of stainless steel by crystalline structure (along with ferritic, martensitic, duplex and precipitation hardened). In some areas, the austentite stainless steel is also called the 300 series stainless steel. When the steel contains about 18% Cr, 8%-25% Ni, and about 0.1% C, it has a stable austenite structure.

Austenitic chromium-nickel stainless steel includes the famous 18Cr-8Ni steel and the high Cr-Ni series steel developed by adding Cr and Ni content and adding Mo, Cu, Si, Nb, Ti and other elements on this basis. Austenitic stainless steel is non-magnetic and has high toughness and plasticity, but its strength is low, and it is impossible to strengthen it through phase transformation. It can only be strengthened by cold working. If elements such as S, Ca, Se, Te are added, it has good properties of machinability.


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Custom Resin Sand Mold Casting of Stainless Steel Detail:

China OEM custom stainless steel casting products by sand mold casting process and CNC machining.

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 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

 

green sand casting foundry

Sand Mold Casting Foundry

China green sand mold casting foundry

Sand Mold Casting Foundry in China


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Custom Resin Sand Mold Casting of Stainless Steel detail pictures


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All we do is always associated with our tenet " Customer first, Trust first, devoting on the food packaging and environmental protection for Custom Resin Sand Mold Casting of Stainless Steel, The product will supply to all over the world, such as: Vancouver , Rio de Janeiro , Kuwait , As an experienced factory we also accept customized order and make it same as your picture or sample specifying specification and customer design packing. The main goal of the company is to live a satisfactory memory to all the customers,and establish a long term win-win business relationship. For more information,please contact us. And it's our great pleasure if you like to have a personally meeting in our office.
  • Factory equipment is advanced in the industry and the product is fine workmanship, moreover the price is very cheap, value for money!
    5 Stars By Jacqueline from Egypt - 2017.11.12 12:31
    We have been engaged in this industry for many years, we appreciate the work attitude and production capacity of the company, this is a reputable and professional manufacturer.
    5 Stars By Renata from Jersey - 2018.06.05 13:10