The Advantages of Lost Wax Casting:

Lost Wax Casting, also known as investment casting and precision casting, is a developmental manufacturing process that converts molten metal in a single operation to precision, engineered components with minimum wastage of material, energy and subsequent machining.
The lost wax process is extremely versatile, cost effective and is excellent for creating complex components where fine detail and dimensional accuracy are required. Lost wax casting or Investment casting also reduces or totally eliminates the need for costly machining operations. Additionally, as several parts can be made as one casting, the time and cost involved for subsequent assembly is removed. This provides numerous advantages and flexibility for engineers and designers and can be a great alternative to other manufacturing processes. Complex shapes can be formed and minimal surface finishing is thus required for the parts and various metals and alloys can be used within the process.
How long has the lost wax process been around?
Investment casting – using the lost wax casting development technique (this reference term is due to the wax that is used in this methodology) – is one of the oldest casting methods known dating back over 5,000 years. Examples of lost wax casting in history are in producing jewellery and statues which can be traced back with use of natural waxes.
Lost Wax casting or Investment Casting can be integrated with a variety of metals and alloys such as carbon steel, stainless steel, aluminium, brass, bronze, copper, zinc and superalloys such as Inconel and Hastelloy.
SJ is a leading manufacturer of lost wax castings. We provide quality components to manufacturers and suppliers around the globe and across many industries. The most popular industries we supply are Automotive, Marine, Motorsport, Oil & Gas. We have built up a great relationship with our customers and many return to us year after year. Our customer service and the quality of the components we supply, allow us to retain such a reputable place within the industry.
SJ pride ourselves on quality, which is why we continually invest in new technology and techniques. Lost wax casting is one of the oldest casting methods available, and when this method is used alongside the modern technology and techniques we have developed in-house over the last 50 years we are able to produce high quality castings. We are able to manufacture castings in ferrous & non-ferrous metals, and high-temperature super alloys.

01 Part name
Lost wax steel casting

02 Application
Investment casting components

03 Material
Stainless steel

04 Process
Investment casting
& Machining

05 Casting method
Thermal Gravity Casting

06 Surface finished
As raw cast
(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.
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