Stainless steel pipe fittings

Part Name: Stainless steel pipe fittings

Metal: Stainless steel 304 or 316

Metal casting process: Silica sol investment casting process

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. If you need buy from China investmentc asting stainless steel pipe fitting factory, please contact gina@guokuncasting.com to get the quotation.

Investment Casting, Steel Castings Tags: 304 stainless steel castings

Description

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.

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
Grades	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 & Balancing

Wax injection machinery of Baoding Guokun

Two types of investment cast processes: Silica Sol process and the water glass process.

The Silica Sol process is used to cast complex high-quality parts with requirements of a very good surface finish and close dimensional tolerances. This process can range from a weight of just a few ounces to approximately 80 pounds. If you are concerned with precision in very small parts, we are especially proficient at very fine detail work including teeth and serrations.

The water glass process is typical of the process in the early stages of investment castings. It generally is capable of much larger castings than the Silica Sol process, but does not have as good of surface finish or tolerances. The water glass process provides parts that have better surface finish and dimensional tolerances than sand castings. This process may range in weight from several ounces to approximately 200 pounds.

First article layouts and spectrometer material certifications are provided with all first article samples.

Custom service: A variety of secondary operations can be performed on both types of investment castings. They include heat treatment, machining, plating, painting, polishing and buffing, assembly services and even custom packaging.

A High Quality China Metal Casting Factory！

Guokun Casting, of Baoding Hebei is an ISO 9001-2008 registered iron and steel foundry & supplier of high quality carbon steel, cast iron and machined castings used in power, mining, railway, agricultural, tillage, truck, automobile, pump, valve, motor, pipe fittings and gear industry.

With a monthly capacity of 10,000kgs and with more than 15 years of experience ensure the short delivery and the highest valued iron & steel casting parts.