Casting process: Silica sol lost-wax investment casting
Casting material: 306 stainless steel with 16%~18% Cr, 10%~14% Ni and 2%~3% Mo
Casting tolerance: CT4~8
Casting application: Pipe, flow control
Baoding Guokun, with 25 years casting experience, can produce various stainless steel investment casting for various industries. If you have similar need or OEM casting parts, please feel free to contact gina@guokuncasting.com to get a quotation.
Baoding Guokun, with 25 years casting experience, can produce various stainless steel investment casting for various industries. Lost wax investment casting process can produce complex parts that are near-net shape. The stainless steel lost-wax casting parts manufactured by Baoding Guokun is with complex shapes, tight and accurate tolerances that have a standard of +/-0.005, fine surface finish 125 μin (3.2 μm Ra), minimal machining to reduce time and cost and cost-effective.
The stainless steel 316 lost wax casting parts produced by Guokun, usually servce different industries, such as pump, valve, marine, agriculture, aircraft, food, medical machinery, motor, etc.
Stainless steel is a type of low-carbon steel that is resistant to corrosion and rusting. It is made from iron, chromium, and other elements, such as nickel, carbon, molybdenum, and nitrogen. The chromium content in stainless steel is at least 10.5%, which creates a chromium oxide layer on the surface that protects the material from further oxidation.
Stainless steel has many properties, including corrosion resistance, durability, temperature resistance, recyclability, maintenance, modern appearance, high tensile strength, good ductility and high hardness. The stainless steel can be used in many different industries, such as automotive, aircraft, construction, marine, medical, food, etc.
The common stainless steel grades
| stainless steel alloys | |||||||
| Grades | Chemical Composition | Mechanical Properties | |||||
| C | Cr | Ni | Mo | Tensile Strength MPa | Yield strength Mpa | Elongation % | |
| 304 | ≤0.08 | 18 ~ 20 | 8 ~ 11 | – | ≥520 | ≥205 | ≥45 |
| 304L | ≤0.03 | 18 ~ 20 | 8 ~ 12 | – | ≥480 | ≥175 | ≥45 |
| 316 | ≤0.08 | 16 ~ 18 | 10 ~ 14 | 2 ~ 3 | ≥520 | ≥205 | ≥45 |
| 316L | ≤0.03 | 16 ~ 18 | 10 ~ 14 | 2 ~ 3 | ≥480 | ≥175 | ≥45 |
| 410 | ≤0.12 | 11.5 ~ 13.5 | ≤0.75 | – | ≥440 | ≥205 | ≥20 |
| 430 | ≤0.12 | 16 ~ 18 | ≤0.75 | – | ≥450 | ≥205 | ≥22 |
The most common stainless steel alloy is austenitic stainless steel, particularly Grade 304 and Grade 316, which is a mixture primarily composed of Cr and Ni, offering good corrosion resistance and excellent formability, making them widely used in various applications.
Baoding Guokun Investment casting process steps for 304 OEM casting parts:
| No. | Steps | Details |
| 1 | Patterns Makings | Creating a wax mold of the desired stainless steel pump impellers, and then adding sprues to the wax model to create a tree-like structure. |
| 2 | Shell Building | Coating the wax pattern with a layer of fire-resistant paint, and then to be sprinkled with sand, so after a period of hardening, the surface will form a layer of fire-resistant thin shell. |
| 3 | Dewaxing | Removing the wax, the shell is placed into an oven, melting the wax so that it can run out of the shell. |
| 4 | Pouring | Pouring the molten stainless steel into the shell, and waiting for solidification under room temperature. |
| 5 | Post treatment | After cooling, knock the shell and cut the sprue gate by grinding machinery to achieve net shape impeller castings. Then shot blasting to move mill scales to assure the smooth casting surface. |
| 6 | Machining | CNC Machining |
Baoding Guokun Machinery Co., Ltd.
Office Add: 777# Chaoyang South Street, Baoding City, Hebei, 071000, China
Factory Address: Wangdu County, Baoding City, Hebei, 071000, China
Website: www.metalcastingfactory.com
Tel: 86-312-5951319 Fax: 86-312-5951296
Phone: 86-181 3278 9710 (WhatsApp & WeChat)
Email: gina@guokuncasting.com or gina.guokun@gmail.com
