Besser is one of the largest stainless steel casting manufacturers and suppliers in China. With our 21 years of expertise in stainless steel casting, we can provide you with custom stainless steel castings to meet your precise design specifications and any desired grade.
Stainless steel investment casting is a dewaxing investment casting process in which molten stainless steel material is poured into a mold and allowed to solidify, resulting in a solid stainless steel casting in the desired shape. When we have requirements for the properties and corrosion resistance of steel. Stainless steel castings are a better choice.
World-class Large Stainless Steel Investment Casting Foundry
Cooperated with More Than 400 Customers
Compliant with EU standards, the preferred supplier for SMEs
Ningbo Besser Casting Co., Ltd. is a world-class, high-integrity modern steel casting company producing carbon, low alloy, duplex, austenitic, super austenitic, martensitic alloy, and steel castings. As a top steel casting company in China, we specialize in corrosion-resistant alloys. In fact, Besser Foundry can produce over 200 different metal grades.
Our team strives to provide high-quality steel castings for your production line. We are pleased to supply fully machined castings from our extensive on-site machine shop. In addition to machining small to large castings, we also offer X-ray inspection, ultrasonic inspection, and polishing services, among others.
Looking for a reliable stainless steel foundry to meet your corrosion-resistant casting needs? We are your trusted stainless steel casting manufacturer.
How are Stainless Steel Investment Castings Made?
How do we grow your business?
Our Representative Stainless Steel Materials
304 | Housings, bodies. SS304 is widely used in medical, plumbing, watering, mining and petrochemical industries as the standard for cleanliness as well as corrosion resistance. |
316 | The second most common austenite steel, also referred to as A4 stainless. SS316 is used primarily for its increased resistance to corrosion. |
304L / 316L | Lower carbon content than 316 stainless steel, which reduces the sensitization effect caused by the high temperatures involved in welding. Besides, it shows better resistance to stress-corrosion cracking. |
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. Ideal industries are automotive, food & dairy and various machine tools. |
17-4 PH | Most common precipitation-hardening martensitic stainless steel, which uses about 17% chromium and 4% nickel. |
Stainless Steel Investment Castings Services for Your Project
Investment Casting Services
Selecting the correct manufacturing method for your product order is critical. Lost wax investment casting is the right choice when you need high precision, complex parts.
This method proves to be cost-effective as it requires fewer separate processes, saving both time and money during production. Moreover, the resulting parts boast smooth surfaces that replicate the mold's texture precisely, minimizing the occurrence of defects and enhancing overall quality.
Machining Services
Our state-of-the-art facilities and equipment allow us to offer our clients comprehensive machining services including milling, turning, boring, grinding, drilling, wire cutting, and more. With ongoing investment, today Besser is equipped with 14 first-class high-precision 4-axial CNC machining centers, CNC gantry milling & boring machine, CNC horizontal & vertical lathes, CNC honing machine, and CNC deep-hole internal grinders as well as many other conventional equipment.
Surface Treatment Services
We offer various types of surface treatments to enhance the performance, wear resistance and service life of the metal components we produce.
● Shot blasting | ● Sand blasting |
● Vibration grinding | ● Electro-galvanizing |
● Pickling and passivation | ● Electropolishing |
● Phosphating treatment | ● Blackening treatment |
● Brush polishing | ● Mirror polishing |
Stainless Steel Investment Casting Products We Have Made for Our Customers
Besser handles each job with an optimal process to achieve the lowest cost, best quality, and highest efficiency.
See How We Guarantee Your Product Quality
To Provide Our Customers with the Best Stainless Steel Investment Castings Solutions
About Besser
World-Class Stainless Steel Casting Foundry
Besser was established in 2002 and has about 200 professional and technical personnel. We have obtained have obtained IATF16949:2016 and ISO90001:2015 certifications. Besser has a machine shop for secondary operations. The tolerances of metal castings can be tightly controlled. Today, Besser has become a leading casting brand in China's investment casting industry.
Start A Cast Stainless Steel Project With Besser Foundry
As a first-class stainless steel casting manufacturer, we can help you find the right alloy for your stainless steel casting requirements using our on-site spectrometers. We can also fabricate custom stainless steel investment castings to your exact design specifications. For parts from 30 grams to 200 kg or more, we offer tight tolerances and consistent part repeatability.
If you would like to learn more about our stainless steel casting services and receive a free quote for your upcoming project, please contact our stainless steel foundry today.
Fortune 500 Companies Choose to Cooperate with Us
FAQ of Stainless Steel Investment Castings
Q1: What are stainless steel investment castings?
A: stainless steel investment castings are metal components formed by pouring molten stainless steel into a mold to achieve a desired shape. This casting process allows for the creation of intricate and complex parts with specific properties, such as corrosion resistance, strength, and durability.
Q2: What are the advantages of using stainless steel investment castings?
A: stainless steel investment castings offer numerous advantages, including excellent corrosion resistance, high strength, wear resistance, and the ability to maintain their properties at both high and low temperatures. They are also versatile and can be used for various applications in industries like automotive, aerospace, and energy.
Q3: What industries commonly use stainless steel investment castings?
A: stainless steel investment castings find applications in a wide range of industries, including but not limited to automotive, aerospace, marine, oil and gas, construction, and medical equipment manufacturing.
Q4: What are the different methods of stainless steel casting?
A: There are several methods of stainless steel casting, including investment casting (lost-wax process), sand casting, die casting, and continuous casting. Each method offers its own set of advantages and is chosen based on factors like complexity, desired finish, and quantity of parts needed.
Q5: What is the difference between stainless steel investment castings and other types of metal castings?
A: stainless steel investment castings stand out due to their corrosion resistance and ability to maintain their properties in harsh environments. This sets them apart from other metal castings that might not possess the same level of resistance to corrosion or extreme temperatures.
Q6: Can stainless steel investment castings be customized for specific applications?
A: Yes, stainless steel investment castings can be highly customized. The casting process allows for intricate designs and specific shapes to be achieved, making them suitable for various applications. Additionally, different grades of stainless steel can be chosen based on the requirements of the application.
Q7: What are the considerations when selecting a stainless steel grade for casting?
A: The choice of stainless steel grade depends on factors such as the intended use, environmental conditions, temperature range, and required mechanical properties. Common stainless steel grades for casting include 304, 316, 17-4 PH, and 2205 duplex stainless steel.
Q8: What finishes can be applied to stainless steel investment castings?
A: stainless steel investment castings can undergo various finishing processes, including polishing, grinding, plating, and powder coating. These processes enhance the appearance, durability, and functionality of the cast parts.
Q9: How are defects in stainless steel investment castings minimized?
A: Defects in stainless steel investment castings can be minimized through careful design, proper gating and risering, control of casting parameters, quality inspection, and post-casting treatments like heat treatment and surface finishing.
Q10: Are stainless steel investment castings cost-effective?
A: The cost-effectiveness of stainless steel investment castings depends on factors such as the complexity of the design, the chosen casting method, the quantity of parts required, and the properties of the selected stainless steel grade. While stainless steel investment castings might have higher initial costs, their long-term durability and resistance to corrosion can result in cost savings over time.
Q11: How is our stainless steel investment casting performed?
1. Wax Model Making & Assembly
Once the mold is ready, inject wax material into the mold cavity, then take out the wax model from the mold after cooling. Repair some appearance defects of wax models, such as slot, wax injection nozzle, flow pattern, etc. After inspection wax models, weld them to the casting system one by one to form a assembly, which looks like a tree.
2. Shell Building
Shell making process is a whole silica sol process, namely dip the assembly into good colloidal silica coating, sprinkle with fire-resistant sand, dry and harden shell under certain temperature,thus to form dense refractory coating surface outside the surface of wax models, and then repeat the step 5-6, finally form a certain strength and refractoriness of silica sol shell.
3. Dewaxing
Dewaxing is a process in which the wax inside the shell is melted by high temperature steam and then drained out, resulting in a cavity that can be poured into the mold.
4. Pouring
Melt stainless steel ingots into liquid status under a certain high temperature, then pour the liquid into the shell and cool under room temperature. After solidification, knock out the blacks and clean sand.
5. Cutting,Grinding & Surface Finishing
Cut the stainless steel casting blanks from assembly one by one, remove the sprue gate by grinding machine and smooth the surface by various surface finishes, such as shot blasting, sand blasting, electropolishing, mirror polishing, etc.
6. Inspection
After finishing production, inspection is also an indispensable process before delivery. The inspection of stainless steel castings includes dimensional inspection, defects inspection and material inspection. Only qualified products can be shipped to customers.
Watch our stainless steel foundry video to learn how stainless steel castings are made. Videos are also available on youtube.com.
Q12: When to Use Stainless Steel Investment Casting?
You’ll get the most significant advantage from using investment castings if your part:
- has a complicated shape that would be difficult or impossible to produce with other casting methods
- requires exceptional surface qualities
- needs tight tolerances
- prefers minimal surface finishing or machining after casting.
Q13: Why Choose Besser's Stainless Steel Investment Casting Services
- Affordable Tooling: Tooling is the basic step to starting the stainless steel casting process. Although the machining accuracy and material of tooling play an important role in the final casting quality, the tooling of stainless steel is relatively affordable compared with other forming processes.
- Flexible design: Investment casting can cast out stainless steel products in different sizes and weights, so the design of cast stainless steel parts is very flexible. Stainless steel casting allows parts with a minimum 3mm thickness and weights ranging from 0.05kgs-80kgs. Besides, stainless steel castings with complex structures are also castable.
- Close Tolerance: The dimensional accuracy of stainless steel investment casting can meet ISO 8062 CT5-CT6 level. Such close tolerance can ensure stainless steel castings with less or no machining.
- Good Surface: Even after shot blasting, the surface of stainless steel castings is very smooth and looks bright. And people will never worry about stainless steel castings will get rust with time flys.
- High Production Efficiency: Stainless steel casting is a fast and repeatable process, so the production efficiency is very high, and no matter it is a large or small volume, it can all meet.