Investment Casting Foundry | Sand Casting Foundry from China

Stainless Steel Castings, Grey Iron Castings, Ductile Iron Castings

Custom Valve Housing of Cast Duplex Stainless Steel

Short Description:

Material: Cast Duplex Stainless Steel

Casting Process: Lost Wax Precision Investment Casting + CNC Machining

OEM Custom Service: Available

Application: Valve Housing

Heat Treatment: Annealing, Solution, Quenching, Normalizing, Carburizing, Nitriding, Carbonitriding

Unit Weight: 8.60 kg

 

OEM custom valve housing of duplex stainless steel by investment casting and CNC machining. Available surface treatment: Painting, Anodizing, Passivation, Electroplating, Zinc-plating, Hot-Zinc-Plating, Polishing, Electro-Polishing, Nickel-Plating, Blackening, Geomet, Zintek. 


Product Detail

Product Tags

Custom valve housing of duplex stainless steel produced by investment casting from China casting foundry with machining, heat treatment, and surface treatment services.

RMC cast precision cast steel parts that consistently meet or exceed customer expectations. Lost wax investment casting allows us to produce stainless steel casting products as small as tens of grams and as large as tens of kilograms, in a wide range of ferrous and non-ferrous alloys and with exceptional dimensional accuracy.

The lost wax investment casting process produces near-net-shape precision castings that often require little or no additional machining. The resulting finish is also much better than what is achievable through other casting or manufacturing processes. The strength and durability of the casting parts make themselves ideal for high wear-resistance applications requiring millions of cycles.

The Steps of Investment Casting Process:
During the investment casting process, a wax pattern is coated with a ceramic material, which, when hardened, adopts the internal geometry of the desired casting. In most cases, multiple parts are cast together for high efficiency by attaching individual wax patterns to a central wax stick called a sprue. The wax is melted out of the pattern – which is why it is also known as the lost wax process – and molten metal is poured into the cavity. When the metal solidifies, the ceramic mold is shaken off, leaving the near net shape of the desired casting, followed by finishing, testing and packaging.

precision Investment casting process

Duplex Stainless Steel (DSS) refers to stainless steel with ferrite and austenite each accounting for about 50%. Generally, the content of less phases needs to be at least 30%. In the case of low C content, the Cr content is 18% to 28%, and the Ni content is 3% to 10%. Some duplex stainless steels also contain alloying elements such as Mo, Cu, Nb, Ti, and N.

Available grade of duplex stainless steel at RMC Casting Foundry: 1.4460, 1.4462, 1.4468, 1.4469, 1.4517, 1.4770, A 890 1C, A 890 1A, A 890 3A, A 890 4A, A 890 5A, A 995 1B, A 995 4A, A 995 5A, 2205, 2507, 022Cr22Ni5Mo3N, 022Cr25Ni6Mo2N

The DSS has the characteristics of austenitic and ferritic stainless steel. Compared with ferrite, it has higher plasticity and ductility, no room temperature brittleness, and significantly improved intergranular corrosion resistance and welding performance, while still maintaining brittleness, high thermal conductivity, and superplasticity as ferrite stainless steel. Compared with austenitic stainless steel, DSS has high strength and significantly improved resistance to intergranular corrosion and chloride stress corrosion. Duplex stainless steel has excellent pitting corrosion resistance and is also a nickel-saving stainless steel.

Equivalent Grade of Stainless Steel
GROUPS AISI W-stoff DIN BS SS U.N.E. / I.H.A. UNI
Martensitic and Ferritic Stainless Steel  420 C 1,4034 X43Cr16        
440 B/1 1,4112 X90 Cr Mo V18        
- 1.2083 X42 Cr 13 - 2314 F.5263 -
403 1.4000 X6Cr13 403 S 17 2301 F.3110 X6Cr13
(410S) 1.4001 X7 Cr 14 (403 S17) 2301 F.3110 X6Cr13
405 1.4002 X6 CrAl 13 405 S 17 - F.3111 X6 CrAl 13
416 1.4005 X12 CrS 13 416 S 21 2380 F.3411 X12CrS13
410 1.4006 X 10 Cr 13 410 S21 2302 F.3401 X12Cr13
430 1.4016 X6 Cr 17 430 S 17 2320 F.3113 X8Cr17
420 1.4021 X20 Cr 13 420 S 37 2303 F.3402 X20Cr13
420F 1.4028 X30 Cr 13 420 S 45 (2304) F.3403 X30Cr13
(420) 1.4031 X39Cr13 420 S 45 (2304) F.3404 -
431 1.4057 X20 CrNi 17 2 431 S 29 2321 F.3427 X16CrNi16
430F 1.4104 X12 CrMoS 17 - 2383 F.3117 X10CrS17
434 1.4113 X6 CrMo 17 434 S 17 2325 - X8CrMo17
430Ti 1.4510 X6 CrTi 17 - - - X6CrTi17
409 1.4512 X5 CrTi 12 409 S 17 - - X6CrTi12
Austenitic Stainless Steel 304 1.4301 X5 CrNi 18 9 304 S 15 2332 F.3551 X5CrNi18 10
305 1.4303 X5 CrNi 18 12 305 S 19 - - X8CrNi19 10
303 1.4305 X12 CrNiS 18 8 303 S 21 2346 F.3508 X10CrNiS 18 09
304L 1.4306 X2 CrNiS 18 9 304 S 12 2352 F.3503 X2CrNi18 11
301 1.4310 X12 CrNi 17 7 - 2331 F.3517 X12CrNi17 07
304 1.4350 X5 CrNi 18 9 304 S 31 2332 F.3551 X5CrNi18 10
304 1.4350 X5 CrNi 18 9 304 S 31 2333 F.3551 X5CrNi18 10
304LN 1.4311 X2 CrNiN 18 10 304 S 62 2371 - -
316 1.4401 X5 CrNiMo 18 10 316 S 16 2347 F.3543 X5CrNiMo17 12
316L 1.4404 - 316 S 12/13/14/22/24 2348   X2CrNiMo17 12
316LN 1.4429 X2 CrNiMoN 18 13 - 2375 - -
316L 1.4435 X2 CrNiMo 18 12 316 S 12/13/14/22/24 2353 - X2CrNiMo17 12
316 1.4436 - 316 S 33 2343 - X8CrNiMo 17 13
317L 1.4438 X2 CrNiMo 18 16 317 S 12 2367 - X2CrNiMo18 16
329 1.4460 X3 CrNiMoN 27 5 2 - 2324 F.3309 -
321 1.4541 X10 CrNiTi 18 9 321 S 12 2337 F.3553 X6CrNiTi18 11
347 1.4550 X10 CrNiNb 18 9 347 S 17 2338 F.3552 X6CrNiNb18 11
316Ti 1.4571 X10 CrNiMoTi 18 10 320 S 17 2350 F.3535 X6CrNiMoTi 17 12
309 1.4828 X15 CrNiSi 20 12 309 S 24 - - X16 CrNi 24 14
330 1.4864 X12 NiCrSi 36 16 - - - -
Duplex Stainless Steel S32750 1.4410 X 2 CrNiMoN 25 7 4 - 2328 - -
S31500 1.4417 X 2 CrNiMoSi 19 5 - 2376 - -
S31803 1.4462 X 2 CrNiMoN 22 5 3 - 2377 - -
S32760 1.4501 X 3 CrNiMoN 25 7 - - - -
630 1.4542 X5CrNiCNb16-4 - - - -
A564/630 - - - - - -

 

▶ Ferrous Metals and Non-ferrous Metals for Investment Casting, Lost Wax Casting Process:
• Gray Iron: HT150, HT200, HT250, HT300, HT350; GJL-100, GJL-150, GJL-200, GJL-250, GJL-300, GJL-350; GG10~GG40.
• Ductile Iron or Nodular Iron: GGG40, GGG50, GGG60, GGG70, GGG80; GJS-400-18, GJS-40-15, GJS-450-10, GJS-500-7, GJS-600-3, GJS-700-2, GJS-800-2; QT400-18, QT450-10, QT500-7, QT600-3, QT700-2, QT800-2;
• Carbon Steel: AISI 1020 - AISI 1060, C30, C40, C45.
• Steel Alloys: ZG20SiMn, ZG30SiMn, ZG30CrMo, ZG35CrMo, ZG35SiMn, ZG35CrMnSi, ZG40Mn, ZG40Cr, ZG42Cr, ZG42CrMo...etc on request.
• Stainless Steel: AISI 304, AISI 304L, AISI 316, AISI 316L, 1.4401, 1.4301, 1.4305, 1.4307, 1.4404, 1.4571 and other stainless steel grade.
• Brass, Red Copper, Bronze or other Copper-based alloy metals: ZCuZn39Pb3, ZCuZn39Pb2, ZCuZn38Mn2Pb2, ZCuZn40Pb2, ZCuZn16Si4
• Other Materials as per your unique requirements or according to ASTM, SAE, AISI, ACI, DIN, EN, ISO, and GB standards

▶ Capabilities of Investment Casting Foundry
• Max Size: 1,000 mm × 800 mm × 500 mm
• Weight Range: 0.5 kg - 100 kg
• Annual Capacity: 2,000 tons
• Bond Materials for Shell Building: Silica Sol, Water Glass and their mixtures.

Services  Description
Surface Treatment Services Powder Coating, Anodization, Electrophotesis, Chrome Plating, Painting, Sand blasting, Nickel Plating, Zinc Plating, Blacking, Polishing, Bluing, Geormet, Zintek, etc.
CNC Precision Machining Services Lathing, Milling, Turning, Honing, Drilling, Boring, Tapping, Wire Electrode Cutting, Grinding...etc.
Inspection and Quality Control Spectrum Analyzer, CMM, Hardness Tester, Tensile Strength Tester, Yild Strentgh Testor, Sealing Pressure Tester, Carbon Sulfur Analyzer, Metallurgical Microscopy, Press Force Tester...etc.
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