Stainless Steel 17-4PH SS316 Cast and CNC Machined High Pressure Flange Housing
Product Description
Product Detail
Every batch of Custom Stainless Steel 17-4PH SS316 Cast and CNC Machined High Pressure Flange Housing parts undergoes rigorous multi-stage quality verification, including chemical composition spectrometry, hydrostatic pressure testing, optical surface roughness audits down to Ra 0.4um, and full CMM dimensional inspection with tight tolerances to +/-0.005mm. Whether your project demands rapid functional prototypes within 7 to 10 days or high-volume repeat production runs, our integrated casting and CNC Machining setup delivers reliable Precision Metal Components. Send your 2D engineering drawings or 3D CAD files today for an expedited DFM manufacturability evaluation and competitive quotation.
Product Technical Specifications
| Specification Parameter | Capability & Technical Details |
| Product Name | Custom Stainless Steel 17-4PH SS316 Cast and CNC Machined High Pressure Flange Housing |
| Primary Materials | 17-4PH (Precipitation Hardening), SS316, SS316L, SS304, SS303 Stainless Steel |
| Manufacturing Processes | Silica Sol Investment Casting (Lost Wax) + Secondary 4/5-Axis CNC Turning & Milling |
| Machining Tolerances | General CNC: +/-0.01 mm | Precision Sealing Bores: up to +/-0.005 mm |
| Surface Roughness | As Cast: Ra 3.2 - 6.3 um | CNC Machined Sealing Faces: Ra 0.4 - 0.8 um |
| Max Flange Outer Diameter | Up to 500 mm (Turned) | Casting unit weight from 0.05 kg to 35 kg |
| Surface Treatment Options | Chemical Passivation, Electropolishing, Sandblasting, Ultrasonic Degreasing |
| Quality Inspection | 100% CMM Coordinate Inspection, Spectrometer Analysis, Hydrostatic Pressure Testing |
| Accepted Drawing Formats | STEP (.stp), IGES (.igs), SolidWorks (.sldprt), DXF/DWG, High-Res PDF |
| OEM / ODM Service | Custom Tooling Design, Rapid Prototyping (7-10 Days), Mass Production (20-30 Days) |
Stainless Steel Alloys & Performance Characteristics
We specialize in casting and machining a versatile spectrum of stainless steel grades suited for high pressure and corrosive industrial media: • 17-4PH (AISI 630): Exceptional mechanical tensile strength (yield >1000 MPa after H900/H1025 heat treatment) and moderate corrosion resistance, ideal for high-pressure fluid valves and heavy-duty load flanges. • SS316 & SS316L (Molybdenum-Bearing Austenitic): Superior resistance to chloride pitting, marine environments, and chemical acids; optimal for chemical piping, offshore skids, and sanitary instrumentation. • SS304 & SS304L: Versatile general-purpose corrosion-resistant stainless steel with excellent weldability and machinability. • SS303: Free-machining grade with enhanced sulfur addition for precision threaded connectors and high-speed CNC turned fittings.
4-Step OEM / ODM Project Engineering Workflow
Our end-to-end manufacturing process ensures zero defect leakage from initial concept to final bulk shipment: 1. DFM Review & Wax Mold Tooling: Comprehensive tooling mold design, mold flow simulation, and silica sol shell building. 2. Investment Casting & Heat Treatment: Precision induction melting, de-waxing, vacuum casting, solution annealing or precipitation hardening. 3. Multi-Axis CNC Turning & Milling: Precision lathe turning of sealing grooves, multi-port milling, thread tapping, and surface deburring. 4. CMM Inspection, Passivation & Packing: 100% thread gauging, 3D coordinate validation, ASTM A967 passivation, VCI vacuum packing.
Industrial Applications & Typical Environments
Our custom Stainless Steel 17-4PH SS316 Cast and CNC Machined High Pressure Flange Housing serve mission-critical applications across global industries: • High-Pressure Chemical & Oil/Gas Piping: Heavy-duty weld neck flanges, high-pressure manifold blocks, and corrosive fluid connectors. • Marine & Offshore Equipment: Subsea sensor housings, saltwater fluid pump flanges, and marine-grade valve bodies. • Industrial Pressure Transmitters & Instrumentation: Explosion-proof sensor enclosures, sanitary diaphragm seal housings, and flow meter flanges. • Power Generation & Hydraulics: Turbine fluid control housings, hydraulic manifold ports, and high-temperature pressure fittings.
Frequently Asked Questions
Q1: What are the primary advantages of combining silica sol investment casting with CNC machining?
A1: Silica sol casting achieves excellent near-net-shape geometry, smooth surface finish (Ra 3.2-6.3um), and tight dimensional repeatability with zero porosity. Secondary multi-axis CNC machining then cuts critical sealing grooves, concentric flange faces, and threads down to +/-0.005mm tolerance, drastically saving raw material cost and machining cycle time for complex stainless steel components.
Q2: What is the typical lead time for new custom casting tooling and initial samples?
A2: New investment casting tooling and first article sample prototypes (with full dimensional CMM inspection report) typically take 12 to 18 days. Repeat CNC machining production batches are delivered within 20 to 30 days depending on order quantity.
Q3: Do you provide material test certificates and pressure test reports?
A3: Yes. Every production batch is accompanied by EN 10204 3.1 Material Test Certificates (chemical composition and mechanical properties), CMM dimensional inspection reports, and hydrostatic/pneumatic pressure test certifications upon request.
Q4: Can you sign a non-disclosure agreement (NDA) before we send our 3D CAD drawings?
A4: Absolutely. We respect and safeguard our customers' intellectual property and proprietary designs. We routinely execute bilateral NDAs prior to receiving engineering models and project specifications.