We are a leading and global carbon steel investment casting foundry,factory,manufacturer and supplier in China, providing professional carbon steel investment casting services to global customers! If you need customized carbon steel castings products, please feel free to contact us!
Qianhao investment Casting is a global carbon steel foundry.
Carbon steel is an iron-carbon alloy with a carbon content of 0.0218% to 2.11%. Also called carbon steel for casting. It also generally contains small amounts of silicon, manganese, sulfur,
and phosphorus. The higher the carbon content, the higher the strength and the hardness. Carbon steel is among one main materials in the world of steel castings.
carbon steel casting is commonly used.
motor and electrical appliances.
Carbon Steel Casting Process
Same as alloy steel casting, carbon steel casting can be produced in two kinds of different casting processes: Silica Sol Casting and Water Glass Casting.
Silica Sol Casting: Lost wax casting method for carbon steel casting. This casting process can control carbon steel castings within tolerance CT5-6.
Also, the surface finish will be much better. The only consideration of selecting this process is its high production cost.
If you have high demands on your carbon steel castings, this is the best choice.
Water Glass Casting:This type of casting process can make carbon steel castings with tolerance CT7-CT8.
Most carbon steel castings use a water glass casting process for their low cost. In China, around 75% of casting foundries are water glass,
casting manufacturers. Looking for cost savings? Maybe this is the answer.
We also have the capabilities of furnishing secondary operations such as machining,
non-destructive testing, heat treat, surface treatment, and final assembly.
Carbon Steel Casting Grades can be met as customer’s requirements in different countries’ standards.
Our Carbon Steel Investment Casting Process
...How do we make the carbon steel casting products...
Carbon Steel Materials Grades
Carbon Steel Casting
Both mid carbon and low carbon steel are used for investment casting. Mild carbon steel provides good ductility, strength, and wear resistance.
It can also be hardened and tempered through heat treatment. Low carbon steel is easily shaped but cannot be strengthened by heat treating.
As an alternative, carburizing can be used to increase the alloy’s surface hardness.
Low Carbon Steel Casting
Low carbon steel contains lower levels of carbon content. It is known for its ductility, weldability, and machinability.
It is softer and has a lower tensile strength than other steel and is not suitable for heat treatment.
Low Carbon steel casting is typically used for automotive and construction applications. Including fasteners, bolts, shafts, rods, pins, assemblies, and more.
Our low carbon steels for investment casting:1010, 1020, 4130, 8620, 8630, Armco Iron, WCB.
Mild Carbon Steel Casting
Mid carbon steel contains medium levels of carbon content and is known for its wear resistance.
It is harder than low-carbon steel and able to be strengthened using heat treatment.
Mid carbon steel casting alloys are used for military and defense applications. Including engine components, couplings, crankshafts, plane tubing, and firearms.
Our mid carbon steel alloys, including:1040, 4140, 4340, 6150, 8640, CA6NM.
High Carbon Steel Casting
With 0.55-0.95% carbon content, high carbon steel is strong and has a good shape memory,
making it a particularly useful option for spring manufacturers.
This alloy steel for high tensile applications withstands wear and abrasion and is suitable for heavy-duty applications as well, such as cranks and pins.
UTS 800 – 1000N/mm2. Elongation 5-8%. HB 250-400.
| Types | Low Carbon steel | Medium carbon steel | High carbon steel |
|---|---|---|---|
| Carbon Content | 0.05%-0.25% | 0.29% to 0.54% | 0.55-0.95% |
| UTS | 400 – 450N/mm2. | 700 – 850N/mm2 | 800 – 1000N/mm2 |
| Elongation | 15% | 11% | 5-8% |
| HB | 120-180 | 200-300 | 250-400 |
| Features | Low carbon steels offer a range of tensile properties via heat treatment. And the heat treatment can give high surface hardness with abrasion resistance and good core ductility. | This composition allows it to be more durable, pliable, and stronger. Good tensile strengths, ductility, and shock resistance. Readily machined in the softened condition. | strong and has good shape memory, making it a particularly useful option for spring manufacturers. |
| Applications | Low carbon steel alloy is more commonly used in the form of engineering steels for low and medium-strength applications, like brackets, casings, and links. | Medium carbon steel alloy is most used where ductility, good shock, and fatigue strengths are required. such as with levers, air-frame parts, and hydraulic machinery. | High carbon steel alloy steel for high tensile applications withstands wear and abrasion and is suitable for heavy-duty applications as well, such as cranks and pins. |
Why choose Qianhao Carbon Steel Investment Castings
Our Capabilities for Carbon Steel Investment Castings
We are well equipped and experienced to produce carbon steel castings with tight tolerances and outstanding repeatability.
We use modern melting methods to produce carbon steel investment castings with consistent hardness and strength.
We also perform secondary operations such as machining of critical surfaces and threaded holes and can provide anti-corrosion properties of the parts using surface treatments like plating or other coatings as required. Carbon steel cast parts are also commonly heat treated to improve their ductility, strength and other mechanical properties. Our team consists of experts who have extensive experience working with a wide range of carbon steels. Our investment casting manufacturing process is certified to AS9100 and ISO 9001.
Precision Machining Services
Starting from machining and dedicated to machining for 30 years, Qianhao is matchless regardless of technology, equipment and capacity in the industry.
Machining operation is the core and biggest competitiveness of Qianhao. It is not a workshop, but a factory which has been equipped with advanced and complete equipment,
and has a complete management team. There have in place independent engineering team, production team, QA team and Supply Chain team to support its activities.
The machining blanks cover raw (steel) castings from Huawei foundry and outsourced iron castings, forgings, profiles, etc.
The company's powerful machining capabilities is the strong pillar for providing customer with precision machined castings & forgings and profiles.Our capabilities include turning, milling ,
tapping, broaching, drilling, & many other processes to fit your needs.
Surface Treatment Services
Qianhao is located in one of the most developed industrial areas of China, which means a rich supporting industrial chain give strong impetus to our industrial development. All surface treatments are available around us and these plants meet and pass the government's environmental requirements. They have rich experience in processing export products. They are also our trusted partners. Except painting, other surface treatment jobs are contracted to them.
| ● KTL（E-coating) | ● Zinc Plating |
| ● Mirror Polishing | ● Sand Blasting |
| ● Acid Pickling | ● Black Oxide |
| ● Wet Painting | ● Hot Galvanizing |
| ● Powder Coating | ● Nickel Plating |
| ● Vibration grinding | ● Anti Rust Dip |
Carbon Steel Investment Casting Products We Have Made for Our Customers
Qianhao handles each job with an optimal process to achieve the lowest cost, best quality, and highest efficiency.
How We Control Our Investment casting Products Quality
Quality is central to everything we do. It is our level of commitment to deliver a high quality product, ensured by a tight process control, that means we are able to repeatedly exceed our customers’ expectations.
Every employee at Qianhao is responsible for vigilantly watching over every step of our input and output processes.Our products go through strict quality checks at every workstation to achieve maximum quality control
for each manufacturing process.
Qianhao facilities is equipped with 40 plus state-of-the-art testing equipment in our industry, including Spectrometer,
Metallographic Microscope, Tension Tester, Low Temperature Tester, X-ray Tester, MPT, UT, CMM, Video Measurement Machine,
3D Scanner and so on. The strict testing and inspection processs guarantee high quality of our products in the aspects of chemical composition,
mechanical properties, non-destructive testing and high precise dimensional inspections.
Carbon Steel Investment Casting With Qianhao Foundry
Steadfast devoting to the field of precision casting and machining for 30 years
Qianhao is a leading and globally recognized brand for complex and high-tech castings in the area of automobile, rail, construction equipment, material handling equipment and agricultural machinery.
Steadfast devoting to the field of precision casting and machining for 30 years and with strong engineering capabilities, complete quality assurance system and advanced management system, and deep industry expertise,our world class foundry provides these global industry leaders and medium-to-high end western customers with the highest quality products, services and solutions.
Top 500 Companies Choose to Cooperate with Us
We have many OEM customers in railway, automobile, construction equipment, material handling equipment industries and have become the important supplier of the Top 500 companies in the world.
FAQ of Carbon Steel Investment Castings
1. What are the characteristics of carbon steel investment castings?
Carbon steel investment castings are characterized by their high carbon content, which provides a high-strength, ductile steel suitable for use under high-pressure conditions. Carbon steel can withstand high stress and is therefore ideal for mechanical and structural applications. It is softer than other steels, has lower tensile strength, and is not suitable for heat treatment. Carbon steel castings are commonly used in automotive and construction applications, including fasteners, bolts, shafts, rods, pins, components, and more.
Low and medium carbon alloy steels contain varying amounts of nickel, chromium or molybdenum to improve their durability and toughness as well as corrosion resistance.
2: What metal products can carbon steel investment casting services produce?
As mentioned earlier, carbon steel investment castings are largely chosen for various applications in several industries. These include automotive, military, oil and gas, mining, and commercial to name a few. Example carbon steel castings are as follows:
- Cranks
- Handles
- Brackets
- Firearm components
- Housings
- Valves
- Gears
- Nozzles
- Bi-Pods
- Hinges
3: Is the carbon steel investment casting process expensive?
The technique is more complex than other casting processes, requiring extensive preparation and specialized equipment. Therefore, the upfront cost of investment casting can be more expensive than sand casting or die casting. But the unit production cost decreases with the increase of order quantity.
4: What is the process of carbon steel investment casting?
- Create wax pattern: A pattern that replicates the finished part geometry is made using one of two primary methods:
- Wax Assembly: Next, the wax patterns are assembled onto runners and into a finished tree which is ready to be dipped.
- Slurry Coating: The assembly is then dipped into a high-grade ceramic slurry to build a ceramic shell around the wax tree.
- Stuccoing: After the slurry coating is done, particles of sand are dropped onto the surface of the wet tree assembly. This helps to thicken and strengthen the layer of coating on the wax assembly surface.
- Repeat Steps 5 and 6: Repeat steps 5 and 6 until the assembly achieves the desired shell thickness. The assembly is then allowed to set and dry.
- Dewaxing: The wax inside the newly built shell is now removed. Dewaxing is done using a steam-dewaxing autoclave or flash fire furnace.
- Casting: Now the desired molten metal is poured into the pre-heated mold cavity.
- Cooling: The mold then sits to allow the molten metal to cool and solidify which then becomes the final casting.
- Shell Removal: The shell material is then removed through processes hammer knockout, vibration, and steel grit blasting.
- Cut Off: The finished parts are then cut free from the gating and runner system.
- Finishing: Various finishing techniques are then employed including grinding, sand blasting and coating to achieve the final surface needed.
- Testing: Once the finishing operations are done, the parts are inspected for surface and sub-surface defects. Visual and fluorescent penetrant inspection is done for surfaces and X-ray is employed for sub-surface defect identification.
5: How long does it take for carbon steel castings to be produced?
At its core, the investment casting process is simple: create a model, form a mold, and pour the metal. At most traditional precision metal foundries, you then wait anywhere from 6 to 8 weeks or more to get your part.
6: How much do carbon steel castings cost?
Generally speaking, our platform must consider several factors before generating a quotation, including the size of the part, the complexity of the mold, the number of castings, materials, post-processing requirements, etc.