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Stainless Steel Casting
Home             Investment Casting              Stainless Steel Casting

Besser is one of the largest stainless steel foundry in China. With our decades of the professional stainless steel casting process, We provide you with customized stainless steel casting services to meet your precise design specifications and any required grade.

Solutions for Stainless Steel Castings
Stainless steel casting or stainless steel investment casting is a dewaxed investment casting process in which molten stainless steel is poured into a mold and allowed to solidify, resulting in a solid stainless steel part in the desired shape. We can manufacture custom stainless steel investment castings to your exact design specifications. For precision parts from a few ounces to 100 pounds or more.
Advantages of Stainless Steel Castings
01  Superior corrosion resistance
02  Excellent surface finish
03  High dimensional accuracy
04  Extremely intricate parts are castable
05  Almost any metal can be cast
06  No flash or parting lines
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What is Stainless Steel Investment Casting?

 

Stainless steel casting, or stainless steel investment casting, is an investment casting process for stainless steel alloys. It is a lost wax investment casting process that solidifies by pouring molten stainless steel into a mold. Thereby a solid stainless steel part of the desired shape is obtained. Stainless steel has the characteristics of rust resistance, corrosion resistance and bright appearance, so it has always been the first choice for various metal products.

 

Common Cast Stainless Steel Grades

Alloy
Common Usage
Applications
304
Food Grade Steel, Housings, Bodies

304 is widely accepted in the food industry as the standard for cleanliness as well as corrosion resistance.
Medical, Mining, Petrochemical
304L / 316L
Similar to other 300 series steel, the "L" stands for low carbon, making it softer but more corrosion resistant for each grade of material.
Food & Dairy, Medical, Petrochemical
316
Housings, Gears, Plates

316 is known for its superior corrosion resistance, making it ideal for many uses including marine environments.
Automotive, Petrochemical, Food & Dairy
410 & 416
Housings, Bushings, Handles, Brackets

400 series steels are high strength and very machinable. They will tend to break rather than bend under intense pressure.
Automotive, Machine Tool, Food & Dairy
17-4
Rods, Pins, Links, Arms

17-4 is the strongest of the stainless steel family and is used on parts that cannot bend.
Military, Medical, Machine Tool

Applications of Stainless Steel Investment Castings

Medical
Mining
Petrochemical
Agricultures / Food
Aerospace
Energy
Automotive
Military
Fire arms
Machine Tool

Stainless Steel Casting Parts

 

 

Stainless Steel Investment Casting Process

 

1. Create the pattern

Create original patterns using wax, clay, wood, plastic or other materials. The pattern defines the geometry of the finished part.

2. Wax mold making and assembly

After the mold is ready, the wax is injected into the mold cavity, and the wax mold is removed from the mold after cooling. Weld it one by one with the casting system to form an assembly that looks like a tree.

3. Shell making

We dip the tree into a wet, clay-like material—a ceramic slurry. We let it dry. This happens multiple times so that the tree has a strong outer layer.

4. Dewaxing

Dewaxing is the process of melting the wax inside the shell with high temperature steam and then discharging it to form a cavity that can be poured into the mold.

5. Cast the metal

Molten metal is poured into the shell. The tree we built in the second step defines where the metal goes. Now a metal part exists where each pattern used to be.

6. Remove the shell

After the metal has solidified, techniques such as mechanical chipping, hammering, vibrating, high-pressure water jetting and media blasting are used to break the mould and remove the metal casting.

7. Finishing

After grinding, the completed casting is then subject to finishing. This usually goes further than grinding, with impurities and negatives being removed via hand tooling and welding.

8. Inspect the parts

After the production is completed, inspection is also an indispensable process before shipment. Inspection of stainless steel castings includes dimensional inspection, defect inspection, and material inspection. Only qualified products can be shipped to customers.

 

Stainless Steel Investment Casting Tolerance Standards

 

ISO8062(GB/T6414) CT5-CT6

Linear Dimensional Tolerance (mm)

CT5

CT6

0

10

 0.36

±0.18

0.52

±0.26

10

16

0.38

 ±0.19

 0.54

±0.27

16

25

 0.42

±0.21

0.58

 ±0.29

25

40

 0.46

±0.23

0.64

±0.32

40

63

 0.5

±0.25

0.7

±0.35

63

100

0.56

±0.28

0.78

±0.39

100

160

0.62

±0.31

0.88

±0.44

160

250

0.7

±0.35

 1

±0.5

250

400

0.78

±0.39

1.1

±0.55

400

630

0.9

±0.45

1.2

±0.6

 

What Are the Advantages of Stainless Steel Investment Castings?

 

Manufacturing flexibility – With steel casting, we can choose among different chemical compositions depending on the engineering requirements of the job. More than any other cast metal, cast steel offers a wider range of physical and mechanical properties that are possible, helping provide added versatility to allow the steel cast to be designed for any job.

Repeatable casts – Unlike welding, which can be difficult to create streamlined or repeatable shapes, casting allows for a more streamlined approach. This is because a mold is created, making the process more repeatable and efficient when creating multiple casts.

Variable weight ranges – Steel castings can be created from a wide range of weights depending on what is needed. For example, a precision cast weighing only a few grams can be created, or a large steel casting that weighs many tons is possible. This flexibility is possible weights means that no steel casting job is too big or too small to be completed.

Greater reliability and cost benefits – Cast steel parts are made of an isotropic material, increasing the engineering reliability by creating a very strong overall structure. This means you can count on it for day-to-day use. This superior reliability comes with reduced weight and shorter delivery time. These things combine to make steel casting more economically efficient and viable.

 

China's Leading Stainless Steel Casting Company

 

investment casting factory

Besser casting is one of the leading stainless steel investment casting companies in China, we are ISO:9001 certified and meet international quality standards. We can also provide NDT reports for stainless steel castings.

Our proven casting technology makes us the most reliable one-stop supplier of stainless steel castings. And we have successfully manufactured stainless steel castings for customers in more than 30 countries, helping their projects to be successful.

6 reasons why Besser is your best choice:

We have more than ten years of overseas sales experience and a professional overseas sales team, which can communicate with you without barriers and provide you with good services.

Offering complete stainless steel casting solutions, we are able to provide you with not only investment casting services, but also finishing and surface treatment services.

More competitive price, we have a mature casting process. It can reduce unnecessary costs for you. Reduce purchasing costs for you.

 

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The Most Common Questions, We Answer For You !
1. Can your factory produce stainless steel castings?
Yes,we can.we can do with stainless steel, carbon steel, alloy steel, high temperature nickel base alloy material.
2. Why your price is higher than other dewaxing foundry?
We are the casting of silica sol process, the best process in dewaxing casting. There are water glass process and composite process in dewaxing casting. The difference is that the quality of auxiliary materials is completely different, such as wax, glue, sand and so on.3. How accurate can your casting process be, or what tolerance level? Our silica sol casting process can achieve CT5-CT6 tolerance.
3. What is the weight range of castings you can make?
We can make 10g-80kg castings.
4. How long does your development time take?
For general structure products, we can complete the sample within 25 days from mold opening to sampling.
5. Where is your factory in China?
Our factory is located in Ningbo Zhejiang,the southeast of China, with a very developed transportation system.
6. Do you have existing molds that I can use?
This way I can save the cost of mold developing.
We are a non-standard custom factory and do not have our own molds. The existing more than 3,000 pairs of molds are owned by customers. We only store them on behalf of customers, so we cannot use customers' molds. If you need to develop products, you can only develop new molds.
7. Is your mold developed by your own factory?
We have our own ability to mold, but because of limited energy, we will develop both in our own workshop and outsourcing factory. We will also strictly review and verify the molds developed by the outsourcing factory, so we can be assured of the quality of the molds.
8. If the mold is developed, do I still need to invest in the mold cost during mass production?
Our products only need to be invested in the mold at the beginning. The subsequent molds can basically have a life of 500,000 times. Even if the product is made more than 500,000, we will develop new molds by ourselves and submit samples for your verification.No need to pay.
9. What is the general cost of developing molds?
The advantage of our casting process is the low development cost. For general structure products, the average mold fee is about 800USD.
10. What is the size and production capacity of your factory?
Our factory now has about 130 people, and the output value last year was 11 million USD. On the basis of the existing land and plant, there is still 50% of production capacity.
11. What is your payment method?
Our molds are generally 100% prepaid. If the product development does not meet the drawing requirements, we can refund 100%.
12. What industry are the products you are making now?
Our current products are distributed in a wide range of industries, including tools, construction hardware, pump valve bodies, auto parts, etc.
13. Do you have vacuum casting?
We have a vacuum casting production line that can make high-temperature nickel-based alloy products. Vacuum casting can reach the ultimate thickness of 0.5mm, but the thinnest non-vacuum casting is generally only 2.5mm.
14. Can you provide a test report for each batch of shipment? What are your testing equipment?
We can provide chemical composition report and size report every time. Our testing equipment includes Spike brand spectrometer and Hexagon brand three-coordinates. For details, please see our testing equipment page.
15. How long is your delivery date?
Our delivery time for goods is generally around 45 days. If you have urgent orders that need to be processed, we can help you make them expeditiously within 15 days.
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Let’s Work on Your Next Investment Casting Project.
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32 North Yihuan Road, Zhangqi Cixi, Ningbo China 315313
erica@bessercasting.com
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