What is Precision steel casting
The lost wax method is ideal for producing precision steel castings with complex shapes, high dimensional precision and quality requirements. Also, it offers a great freedom in design and materials you want. Precision steel casting is considered the highest quality castings on the market.
About us
SJ Machinery is a leading precision casting company in Ningbo, China, and started producing precision casting parts in 2003. Throughout our history, we are proud of our ability to work with our customers to solve their casting problems in an innovative, cost-effective way.
Whether you are needing complex casting components weighing only a few grams or large components up to 50 pounds, or your needs include high capacity, fast prototyping or short-term projects, you can rely on the SJ precision casting experience, innovation and dedication to serve you.
01 Part name
Precision steel casting
02 Application
Industries components
03 Material
Steel
04 Process
Investment casting
& Machining
05 Casting method
Thermal Gravity Casting
06 Surface finished
Shot blasting
Part Application
Investment casting, also known as lost-wax casting, is a manufacturing process used to create metal parts with complex shapes and intricate details
Available Material
|
1-Carbon steel |
2-Low alloy steel |
3-Corrosion-resistant steel |
4-Heat-resistant steel |
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|
General engineering cast steel (ISO 3755) |
Carbon and low alloy cast steels for general applications (ISO 14737) |
Corrosion-resistant cast steels for general applications (ISO 11972) |
Heat-resistant cast steels and alloys for general applications (ISO 11973) |
||||
|
200-400 |
400-550MPa |
GE200 |
1.0420 |
GX12Cr12 |
1.4011 |
GX30CrSi7 |
1.4710 |
|
200-400W |
400-550MPa |
GE240 |
1.0446 |
GX2CrNi19-11 |
1.4309 |
GX40CrSi13 |
1.4720 |
|
230-450 |
450-600MPa |
GS340 |
1.0467 |
GX5CrNi19-10 |
1.4308 |
GX40CrSi17 |
1.4740 |
|
230-450W |
450-600MPa |
G20Mo5 |
1.5419 |
GX5CrNiMoNb19-11-2 |
1.4581 |
GX40CrSi24 |
1.4745 |
|
270-480 |
480-650MPa |
G42CrMo4 |
1.7231 |
GX5CrNiMoN19-11-3 |
1.4412 |
GX25CrNiSi18-9 |
1.4825 |
|
270-480W |
480-650MPa |
G28Mn6 |
1.1165 |
GX2NiCrMoCuN25-20-6 |
1.4588 |
GX40CrNiSi25-12 |
1.4837 |
|
340-550 |
550-720MPa |
G26CrMo4 |
1.7221 |
GX5CrNiMoCuN 26-6-3 |
1.4515 |
GX40CrNiSi25-20 |
1.4848 |
Production Process Introduce
RFQ handle process
You can find our contact info for further communication in “Contact US” column.
The 2&3D drawing format can be PDF, STEP, DWG, DXF and soon, can be sent via email. Wechat, WhatsApp, link.
After clear the demand of customer, we can send you the quotation with PDF format for documentation.
For requirements for confidentiality of drawings, we can signed the NDA before you send drawing.
The feasibility study of drawing is most key point to ensure the part can be fully meet drawing specifications, which is include material, dimension, surface treatment, and testing request.
Product Advantages
Due to the exacting tolerances and curved product geometry, the castings can be assembled directly without additional machining, leading to substantial cost reductions. The surface finish of the castings is crucial as it ensures seamless clamping of pipes along the entire surface. To enhance wear resistance, the castings undergo heat treatment (case-hardening) to maintain durability during operation.
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