Dandong Dawang is a leading professional stainless steel casting foundry in china. We can offer a wide selection of stainless steel casting service. As stainless steel is one of the most versatile materials, stainless steel casting parts are used in many industries, such as constructional machinery, renewable energy, automotive, marine, or other large equipment sectors. We are an experienced stainless steel castings manufacturer.
The most common stainless steel types we produce are listed below. Besides, we can produce other alloy castings according to your need.

Custom Stainless Steel Casting Service

Stainless Steels Casting Grades


304 stainless steel casting


304L stainless steel casting


316 stainless steel casting


316L stainless steel casting


410 stainless steel casting


416 stainless steel casting


17-4 ph investment casting


More stainless steels grades types

Stainless Steels Casting Application

AlloyStainless Steel PropertiesApplication


Type alloy 304 is the most versatile alloy in the stainless steel casting series. Afterwards, it is ideal for a wide variety of household and commercial applications. Another key point, 304 has excellent corrosion resistance and is easy to process and shape.Medical/Mining/Petrochemical


304L is very similar to 304 alloys, the difference is that the maximum carbon content of 304 alloy is 0.08%, while 304L is 0.03%. Basically, this “L” can be understood as low carbon.Medical/Food/Petrochemical


At high temperatures, 316 stainless steel casting has higher creep and tensile strength. It is commonly used in the paper industry, chemical and textile processing equipment, furnace parts, etc.Automotive/Food/Petrochemical


Compared with 316, the molybdenum in 316L make it have higher corrosion resistance. It can resist atmospheric corrosion. Additionally, 316L has excellent resistance to inter-granular corrosion when welding.Medical/Food/Petrochemical


410 is a chromium martensitic stainless steel that can be heated to obtain a wide range of mechanical properties. Stainless steel casting 410 has high strength, hardness and good corrosion resistance. It is easy to extend and be formed. In addition, in all cases it is magnetic. It is commonly used in cutlery, petroleum refining, petrochemical processing, and marine environments, etc.Automotive/Machine/Food


Alloy 416 series is high-chromium martensitic free-machining stainless steel. It has high strength and is easy to process. 416 can be applied to axles, gears, valves, and lead screws. It is not recommended to apply to containers filled with gas or liquid under high pressure. Automotive/Machine/Food


17-4 is an age-hardening martensitic stainless steel. It combines high strength and corrosion resistance. Hardening can be achieved after simple low-temperature treatment. 17-4 still has high tensile strength, hardness, oxidation resistance. Compared with traditional martensitic stainless steel, 17-4 ph investment casting is more weldable. Finally, all that properties make it used in oil, natural gas, aerospace and other fields. Military/Medical/Machine

Stainless Steel Casting Process

Stainless Steel Investment Casting Process

We adopt the cast stainless steel lost wax casting process. By all means, our stainless steel investment casting is in strict accordance with the SOP.
The main stainless steel investment casting process is as the following:
  • 1. Pouring simulation
  • 2. Mold development
  • 3. Raw material inspection
  • 4. Wax pattern
  • 5. Shell preparation
  • 6. Metal pouring
  • 7. Cleaning
  • 8. Heat treatment
  • 9. Inspection
  • 10. Warehouse packaging
  • 11. Shipping.

Cast Stainless Steel Mold Development

The stainless steel foundry technical department develops the mold. Also, the quality department uses the three coordinates to carry out the dimensional inspection.

Stainless Steel Foundry Wax Pattern

The workers use automatic waxing machines to set the waxing pressure, holding time especially.

Stainless Steel Foundry Shell Preparation

The workshop has 4 automatic production lines, able to produce 1800 sets of shells. Further, we use a hygrothermograph, aerometer, and PH to check liquor aluminum chloride.

Casting Stainless Steel Metal Pouring

We have 4 sets of 500KG furnaces are in production, and 3 sets of 500KG spare furnaces are ready. Generally, the operators conduct rigorous tests to fulfill material requirements.

Cast Stainless Steel Clean And Heat Treat

The workshop is equipped with 8 heat treatment furnaces, 3 quenching furnaces. Meanwhile, we also have 1 central shot blasting machine and 11 large shot blasting machines.

Stainless Steel Casting Inspection

We use CMM to check all blank dimensions. We have a Rockwell hardness machine, dynamic balance instrument, roundness meter. Moreover, the company’s quality department has certified employees to do UT, PT, MT testing.

Stainless Steel Sand Casting Process

Stainless steel sand casting process is as the following:
  • 1. Pouring simulation
  • 2. Mold development
  • 3. Raw material inspection
  • 4. Modeling (Core-Making)
  • 5. Melting
  • 6. Metal pouring
  • 7. Cleaning
  • 8. Heat treatment
  • 9. Inspection
  • 10. Warehouse packaging
  • 11. Shipping.

Casting Stainless Steel Mold Development

Design and produce molds according to the requirements of the drawings. Generally, wood molds can be used for single-piece production. Above all, plastic molds and metal molds are made for mass production. Besides, templates can be made for mass castings. Our mold is mainly made of aluminum.

Cast Stainless Steel Modeling (Core-Making)

modeling: forming the cavity of the casting with molding sand.
core-making: forming the inner shape of the castin.
mold matching: putting the core into the cavity and closing the upper and lower flasks.
All in all, modeling is a key process in casting.

Stainless Steel Foundry Melting

According to the required metal composition, the chemical composition is matched. After that, we select the appropriate melting furnace to melt the alloy material.

steel casting grades

Stainless Steel Foundry Metal Pouring

Pour qualified molten metal into the sandbox equipped with the mold. Besides, the pouring stage has high safety requirements. We have rigorous process control to protect the safety of our employees.

Custom Stainless Steel Casting Clean And Heat Treat

After the molten metal is poured and solidified, the molding sand is removed. Certainly, the gate and other attachments are knocked out to form the required casting.


Above all, we use CMM to check all blank dimensions. After that, we have a Rockwell hardness machine, dynamic balance instrument, roundness meter. Basically, the company’s quality department has certified employees to do UT, PT, MT testing.

Stainless Steel Casting Samples

Valve Body

Valve Body





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Questions About Stainless Steel Casting Service

1. What kind of casting process do we use to produce stainless steel parts?

All in all, Dawang stainless steel foundry uses stainless steel lost wax casting, sand casting, and shell mold casting processes. Further, we have been committed to providing high-efficiency and high-quality stainless steel precision casting.

2. How much does custom stainless steel casting cost?

As China’s top stainless steel foundry, Dawang provides our customers with competitive pricing for custom stainless steel casting parts. The price of basic raw material castings is generally higher than carbon steels and sometimes starts from 5USD/kg.

3. Are there any discounts for stainless steel precision castings?

Yes. We offer discounts to customers who purchase large quantities of stainless steel precision castings.
Specific: When the total weight (1 type) of stainless steel precision castings reaches 10 tons. And when the quantity reaches 10,000 pieces, we will refund the mold fee.

4. What is the difference between 304 and 304L stainless steel?

The main difference is the carbon content. 304 stainless steel is qualified if the carbon content is below 0.08%. All things considered, the carbon content of 304L stainless steel is qualified below 0.03%.

The carbon content means the quality of the casting. Altogether, the lower the carbon content, the better the corrosion resistance of stainless steel castings. Most companies can provide different types of stainless steel investment casting.