OEM custom cast stainless steel casting product by precision investment casting + CNC machining. Available further process: heat treatment, surface treatment, testing and assembly.
Stainless steel is the abbreviation of stainless and acid-resistant steel. It is called stainless steel that is resistant to weak corrosive media such as air, steam, and water. Corrosion resistant steel is called acid-resistant steel.
|Investment Casting Technical Data at OBT Foundry|
|R&D1||Software: Solidworks, CAD, Procast, Pro-e|
|Lead Time for Development and Samples: 25 to 35 days|
|Molten Metal||Ferritic Stainless Steel, Martensitic Stainless Steel, Austenitic stainless steel, Precipitation Hardening Stainless Steel, Duplex Stainless Steel|
|Carbon Steel, Alloy Steel, Tool Steel, Heat Resistant Steel, |
|Nickle-base Alloy, Aluminium Alloy, Copper-base Alloy, Cobalt-base Alloy|
|Metal Standard||ISO, GB, ASTM, SAE, GOST EN, DIN, JIS, BS|
|Material for Shell Building||Silica Sol (Precipitated Silica )|
|Water Glass (Sodium Silicate)|
|Mixtures of Silica Sol and Water Glass|
|Technical Parameter||Piece Weight: 2 gram to 200 kilo gram|
|Max Dimension: 1,000 mm for Diameter or Length|
|Min Wall Thickness: 1.5mm|
|Casting Roughness: Ra 3.2-6.4, Machining Roughness: Ra 1.6|
|Tolerance of Casting: VDG P690, D1/CT5-7|
|Tolerance of Machining: ISO 2768-mk/IT6|
|Inner Core: Ceramic Core, Urea Core, Water Soluble Wax Core|
|Heat Treatment||Normalizing, Tempering, Quenching, Annealing, Solution, Carburization.|
|Surface Treatment||Polishing, Sand / Shot Blasting, Zinc Plating, Nickel Plating, Oxidation Treatment, Phosphating, Powder Painting, Geormet, Anodizing|
|Dimension Testing||CMM, Vernier Caliper, Inside Caliper. Depth Gage, Height Gage, Go/No go Gage, Special Fixtures|
|Chemical Inspection||Chemical Compostion Analysis (20 chemical elements), Cleanliness Inspection, X-ray Radiographic Inspection, Carbon-Sulfur Analyser|
|Physical Inspection||Dynamic Balancing, Static Blancing, Mechanical Properties (Hardness, Yield Strength, Tensile Strength), Elongation|
|Production Capacity||More than 250 tons per month, more than 3,000 tons annually.|
Due to the difference in chemical composition between the ordinary stainless steel and acid-resistant steel, their corrosion resistance is different. Ordinary stainless steel is generally not resistant to chemical media corrosion, while acid-resistant steel is generally non-corrosive. The term "stainless steel" not only refers to a single type of stainless steel, but also refers to more than one hundred industrial stainless steels. Each stainless steel developed has good performance in its specific application field.
Stainless steel is often divided into martensitic stainless steel, ferritic stainless steel, austenitic stainless steel, austenitic-ferritic (duplex) stainless steel and precipitation hardening stainless steel according to the state of microstructure. In addition, according to the chemical compositions, it can be divided into chromium stainless steel, chromium nickel stainless steel and chromium manganese nitrogen stainless steel, etc. CF8M stainless steel equals to SS316/F316 and Chinese Standard 0Cr17Ni12Mo2.
In casting production, most of the stainless steel castings are completed by investment casting. The surface of stainless steel castings produced by investment casting is smoother and the dimensional accuracy is easier to control. Of course, the cost of investment casting stainless steel parts is relatively high compared to other processes and materials.
Investment casting, also called precision casting or lost wax casting, is widely used as it offers asymmetrical casting with very fine details to be manufactured relatively inexpensively. The process involves producing a metal casting using a refractory mould made from a wax replica pattern.
Applications of Our Custom Casting and Machining Parts:
1. Automobile Parts: Brake Disc, Connect Rod, Drive Axle, Drive Shaft, Control Arm, Gearbox Housing, Gearbox Cover, Clutch Cover, Clutch Housing, Wheels, Filter Housing, C.V. Joint Housing, Lock Hook.
2. Truck Parts: Rocker Arms, Transmission Gearbox, Drive Axles, Gear Housing, Gear Cover, Towing Eye, Connect Rod, Engine Block, Engine Cover, Joint Bolt, Power Takeoff, Crankshaft, Camshaft, Oil Pan.
3. Hydraulic Parts: Hydraulic Cylinder, Hydraulic Pump, Gerotor Housing, Vane, Bushing, Hydraulic Tank, Hydraulic Cylinder Head, Hydraulic Cylinder Triangle Bracket.
4. Agricultural Machinery and Tractor Parts: Gear Housing, Gear Cover, Connect Rod, Torque Rod, Engine Block, Engine Cover, Oil Pump Housing, Bracket, Hanger, Hook, Bracket.
5. Rail Trains and Freight Cars: Shock Absorber Housing, Shock Absorber Cover, Draft Gear Housing, Draft Gear Cover, Wedge and Cone, Wheels, Brake Systems, Handles, Guids.
6. Construction Machinery Parts: Gear, Bearing Seat, Gear Pump, Gearbox Housing, Gearbox Cover, Flange, Bushing, Boom Cylinder, Support Bracket, Hydraulic Tank, Bucket Teeth, Bucket.
7. Logistics Equipment Parts: Wheels, Caster, Bracket, Hydraulic Cylinder, Forklift Spare Parts, Lock Case.
8. Valve and Pump Parts: Valve Body (Housing), Butterfly Valve Disc, Ball Valve Housing, Flange, Connector, Camlock, Open Impeller, Close Impeller, Pump Housing (Body), Pump Cover.
|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||-||-||-||-|
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.
• Tolerances: On Request.
Advantages of Investment Casting Components:
- Excellent and smooth surface finish
- Tight dimensional tolerances.
- Complex and intricate shapes with design flexibility
- Capability to cast thin walls therefore a lighter casting component
- Wide selection of cast metals and alloys (ferrous and non-ferrous)
- Draft is not required in the molds design.
- Reduce the need for secondary machining.
- Low material waste.
|Materials for Investment Casting Process at OBT Foundry|
|Category||China Grade||US Grade||Germany Grade|
|Ferritic Stainless Steel||1Cr17, 022Cr12, 10Cr17, ||430, 431, 446, CA-15, CA6N, CA6NM||1.4000, 1.4005, 1.4008, 1.4016, GX22CrNi17, GX4CrNi13-4|
|Martensitic Stainless Steel||1Cr13, 2Cr13, 3Cr13, 4Cr13, ||410, 420, 430, 440B, 440C||1.4021, 1.4027, 1.4028, 1.4057, 1.4059, 1.4104, 1.4112, 1.4116, 1.4120, 1.4122, 1.4125|
|Austenitic stainless steel||06Cr19Ni10, 022Cr19Ni10,|
06Cr25Ni20, 022Cr17Ni12Mo2, 03Cr18Ni16Mo5
|302, 303, 304, 304L, 316, 316L, 329, CF3, CF3M, CF8, CF8M, CN7M, CN3MN||1.3960, 1.4301, 1.4305, 1.4306, 1.4308, 1.4313, 1.4321, 1.4401, 1.4403, 1.4404, 1.4405, 1.4406, 1.4408, 1.4409, 1.4435, 1.4436, 1.4539, 1.4550, 1.4552, 1.4581,|
|Precipitation Hardening Stainless Steel||05Cr15Ni5Cu4Nb, 05Cr17Ni4Cu4Nb||630, 634, 17-4PH, 15-5PH, CB7Cu-1||1.4542|
|Duplex Stainless Steel||022Cr22Ni5Mo3N, 022Cr25Ni6Mo2N||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
|1.4460, 1.4462, 1.4468, 1.4469, 1.4517, 1.4770|
|High Mn Steel||ZGMn13-1, ZGMn13-3, ZGMn13-5||B2, B3, B4||1.3802, 1.3966, 1.3301, 1.3302|
|Tool Steel||Cr12||A5, H12, S5||1.2344, 1.3343, 1.4528, GXCrMo17, X210Cr13, GX162CrMoV12|
|Heat Resistant Steel||20Cr25Ni20, 16Cr23Ni13,|
|309, 310, CK20, CH20, HK30||1.4826, 1.4828, 1.4855, 1.4865|
|Nickle-base Alloy|| ||HASTELLY-C, HASTELLY-X, SUPPER22H, CW-2M, CW-6M, CW-12MW, CX-2MW, HX(66Ni-17Cr), MRE-2, NA-22H, NW-22, M30C, M-35-1, INCOLOY600,|
|2.4815, 2.4879, 2.4680|
|ZL101, ZL102, ZL104||ASTM A356, ASTM A413, ASTM A360||G-AlSi7Mg, G-Al12|
|Copper Alloy||H96, H85, H65, HPb63-3,|
HPb59-1, QSn6.5-0.1, QSn7-0.2
|C21000, C23000, C27000, C34500, C37710, C86500, C87600, C87400, C87800, C52100, C51100||CuZn5, CuZn15, CuZn35, CuZn36Pb3, CuZn40Pb2, CuSn10P1, CuSn5ZnPb, CuSn5Zn5Pb5|
|Cobalt-base Alloy|| ||UMC50, 670, Grade 31||2.4778|
|INVESTMENT CASTING TOLERANCES|
|Up to 0.500||±.004"||Up to 12.0||± 0.10mm|
|0.500 to 1.000”||±.006"||12.0 to 25.0||± 0.15mm|
|1.000 to 1.500”||±.008"||25.0 to 37.0||± 0.20mm|
|1.500 to 2.000”||±.010"||37.0 to 50.0||± 0.25mm|
|2.000 to 2.500”||±.012"||50.0 to 62.0||± 0.30mm|
|2.500 to 3.500”||±.014"||62.0 to 87.0||± 0.35mm|
|3.500 to 5.000”||±.017"||87.0 to 125.0||± 0.40mm|
|5.000 to 7.500”||±.020"||125.0 to190.0||± 0.50mm|
|7.500 to 10.000”||±.022"||190.0 to 250.0||± 0.57mm|
|10.000 to 12.500”||±.025"||250.0 to 312.0||± 0.60mm|
|12.500 to 15.000||±.028"||312.0 to 375.0||± 0.70mm|
Value Added Services on Engineering and Manufacturing:
|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.|