Duplex 1.4517 Stainless steel investment casting silica sol process PED service

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Duplex 1.4517 Stainless steel investment casting of a pump case manufactured by silica sol process.  



Quick Detail:


1.   Precision castings of pump body applied in fluid control industry.

2.   Silica sol lost wax process;

3.   Ball blasted and electropolished;

4.   Chemical composition tested by German spectrometer;

5.   PED certificated foundry;

6.   NDT service available (Dye test, X ray test etc).

7.  Size: 120X140X160mm;

8.   Weight: 2.3kg;




Lost wax investment casting parts of a pump casing.
Winnington operate a wide range of materials: stainless steel, carbon steel, nickel-based alloys, and more:

Stainless Steel (70%)

Carbon Steel

Alloy Steel

CF8 (AISI 304),CF3M (AISI 316L), CF8M (AISI 316),  CD4MCu, CD4MCuN,ANC20,1.4408,1.4517, 1.4306, 303,  430, 420, 17-4PH, SCS1

and more

SCS16, SCS14, SCS13, 1.0619, WCB, WCC, S355JR, 1045 , LCC

and more

ANC2,CLA12C,42CrMo, 7 Q, 8 Q,4140,6150

and more



Investment casting, often called lost wax casting, is regarded as a precision casting process to fabricate near-net-shaped metal parts from almost any alloy. The most common use of investment casting in more recent history has been the production of components requiring complex, often thin-wall castings.
The investment casting process begins with fabrication of a sacrificial pattern with the same basic geometrical shape as the finished cast part. Patterns are normally made of investment casting wax that is injected into a metal wax injection die. Once a wax pattern is produced, it is assembled with other wax components to form a metal delivery system , called the gate and runner system. The entire wax assembly is then dipped in a ceramic slurry, covered with a sand stucco, and allowed to dry. The dipping and stuccoing process is repeated until a shell of ~6-8 mm is applied.
Once the ceramic has dried, the entire assembly is placed in a steam autoclave to remove most of the wax. After autoclaving, the remaining amount of wax that soaked into the ceramic shell is burned out in a furnace. At this point, all of the residual pattern and gating material is removed, and the ceramic mold remains. The mold is then preheated to a specific temperature and filled with molten metal, creating the metal casting. Once the casting has cooled sufficiently, the mold shell is chipped away from the casting. Next, the gates and runners are cut from the casting, and final postprocessing (sand blasting, machining) is done to finish the casting.



Pipe Fittings

Marine and Oil
Power & Energy







Maximum Casting Size


Casting weight


Wall thickness

1.5-2mm Min

Casting process type

silica sol lost wax casting


CNC machining, CNC lathe

Surface finish

electro polishing, satin, hand polished, pickled, zinc plating, vibratory polishing;


According to VDG P690

Physical performance

Tensile test, Impact test, Hardness test

Chemical composition test


NDT test

Dye test, X ray test etc



Competitive Advantage:


One-stop Services of Winnington Casting

From wax die making, wax injection, pouring, secondary machining, welding, heat treatment, polishing, surface finishing etc.



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Mr. Sophia Peng
Tel: 86-752-2652780
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Contact Method
Winnington Casting CO.,LTD,
Xikeng Industrial Zone, Huizhou, Guangdong, China (Mainland)
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