Steel flange pipe
Custom Steel Castings & Machining — From Your Drawing to Finished Parts
This Flange Pipe is a critical connecting component designed for industrial piping systems, fluid transmission networks, and structural connections requiring reliable sealing and corrosion resistance. It is manufactured by our in‑house Investment Casting + CNC precision machining process. The use of 304 stainless steel provides an excellent balance of corrosion resistance, good formability, excellent weldability, and reliable performance under a wide range of temperatures and media. The investment casting process ensures tight dimensional tolerances, smooth surface finish, and the ability to form complex internal geometries and thin‑walled structures — all critical for flange pipes requiring leak‑proof sealing, precise bolt hole alignment, and long‑term durability in corrosive or sanitary environments.
Our one‑stop approach — covering mold design, investment casting, CNC machining, surface treatment (pickling, passivation, or electropolishing), and engineered packing — delivers a ready‑to‑install flange pipe that meets high‑strength mechanical requirements and withstands vibration, pressure fluctuations, thermal cycling, moisture, and a wide range of chemical media.
design customization
Please fill out the form below to request a quote or to request more information about us. Please be sure to upload customized requirement documents or pictures, and we will get back to you as soon as possible with a response. we're ready to start working on your new project, contact us now to get started.
Please fill out the form below to request a quote or to request more information about us. please be as detailed as possible in your message, and we will get back to you as soon as possible with a response. we're ready to start working on your new project, contact us now to get started.
High Speed Custom Investment Casting 304 Stainless Steel flange pipe
| Specification Item | Details for This Case | Matech’s Capability / Notes |
| Material Grade | 304 stainless steel, compliant with GB/T 20878-2024 standard | Custom grades such as 310, 347, and 316 stainless steel are available upon request, with full material certification provided |
| Unit Weight | 1.2 kg | Machining capacity for components ranging from 1 kg to 100 kg |
| Dimensions | 40 × 25 × 20 mm | Maximum machining envelope approx. 1000 × 500 × 300 mm, subject to drawing confirmation |
| Casting Tolerance | CT6–CT7 | Achieved through in-house precision tooling and stable precision casting processes |
| Machining Tolerance | ±0.02 mm | Ensured by 3/4/5-axis CNC machining centers; tighter tolerances available upon request |
| Surface Roughness | As-cast: Ra 3.2–6.5 μm / After machining: Ra 0.8 μm | Machined surface finish achievable down to Ra 0.8 μm |
| Minimum Wall Thickness | 1.5 mm | Specialized in thin-wall castings; minimum wall thickness down to 3.0 mm depending on part geometry |
| Heat Treatment | Heat treatment applicable | Solution treatment and other heat treatment processes available, with fully digital furnace temperature control throughout the process |
| Surface Treatment | Acid pickling | Optional polishing, mirror polishing, wire drawing, and other surface treatments available according to corrosion-resistance requirements |
| Applications | Fluid handling equipment | Widely used in servers, automotive, medical, general machinery, pumps & valves, and new energy industries |
| Minimum Order Quantity (MOQ) | 200 pcs | Flexible MOQ, supporting prototype and low-volume production |
| Sample Lead Time | 40–45 working days (including new tooling development) | Lead time subject to drawing review; expedited service available |
| Mass Production Lead Time | 45–50 working days | Lead time determined by order quantity and product complexity, as specified in the contract |
| Drawing Formats | STEP, IGES, X_T, DWG, PDF | All standard 2D/3D drawing formats supported |
| Customization | Fully customized | Material, structure, tolerances, and surface treatment can all be customized to customer requirements |
| Certifications | ISO 9001:2015 Quality Management System Certified | EN 10204 3.1 material certificate, dimensional inspection reports, and PPAP Level 3 documentation available |
| Packaging | Custom PE foam + wooden crate packaging | Customized protective packaging solutions for fragile or critical components |
Customization Options
Every casting project starts with your unique design and requirements. Whether it's iron, steel, or aluminum, we tailor every aspect of the manufacturing process to your exact specifications. Below are the key dimensions you can customize with Matech — your drawing is our only standard.
Material Selection
From aluminum alloy to grey/ductile iron to carbon steel/stainless steel — we pour the alloy your design demands. Custom compositions are welcome. Full material certification included.
Casting Process
Our engineers tailor the most suitable manufacturing process to your specific needs based on your part's geometry, volume, and performance requirements, ensuring the optimal balance between quality and cost.
Dimensional Accuracy & Machining
We machine to your exact tolerances. In-house 3/4/5-axis CNC with custom fixtures. Casting tolerance CT4-CT11, machining tolerance down to ±0.005mm.
Heat Treatment
MATECH provides a full range of heat treatment services, including: Annealing, Normalizing, Quenching, Tempering, Carburizing, Nitriding, Solution Treatment.
Surface Treatment & Coating
Matech support: Sandblasting / Shot Blasting, Chemical Degreasing, Pickling/Passivation, Mechanical Grinding / Polishing, Zinc Plating, Hard Chrome Plating, Electroless Nickel Plating, Anodizing,Dacromet, Powder Coating, Black Oxide, Stainless Steel Passivation.
Testing, Documentation & Packaging
From material certificates to complete customs clearance documents, and from custom pallets to packaging optimized for your product's specific characteristics. Your parts arrive fully documented, well-protected, and ready for immediate use.
Our Advantages
Technical Advantages
1
Pattern shop, sand/investment casting lines, CNC machining, heat treatment,surface treatment, and inspection lab — all under one roof. No outsourcing. This vertical integration gives us complete control over lead time, quality, and traceability from raw melt to finished part.
2
Before pattern production begins, we deliver a detailed DFM report covering solidification analysis, riser placement, core design, and machining allowance optimization. We flag potential shrinkage risks, wall thickness issues, and internal cavity challenges early.
3
We specialize in components with intricate internal passageways, and high pressure-tightness requirements — such as valve bodies, pump housings, and exhaust manifolds. In-house X-ray, ultrasonic, and leak/pressure testing ensure internal integrity. Where applicable, controlled weld repair with full NDT verification and post-weld heat treatment keeps your parts on track without hidden outsourcing delays.
casting 拷贝
steel casting1 拷贝
steel casting2 拷贝
硅溶胶铸造 拷贝
Service Advantages-总部接待区 1 拷贝
Material Advantages
1
We charge only carefully sorted steel scrap into our electric arc or induction furnaces. Every heat is chemically analyzed by spectrometer before tapping, with real-time adjustments to carbon, manganese, silicon, and alloying elements. Deoxidation and desulfurization practices ensure clean steel with low inclusion content.
2
Every production batch is identified by a unique heat number. Chemical composition reports, mechanical test records (yield strength, tensile strength, elongation, impact toughness at ambient or low temperature), and heat treatment charts are compiled into a traceable dossier — from furnace charge to finished casting.
3
We pour a comprehensive range of carbon steels, low-alloy steels, and stainless steels — including WCB, WCC, LCC, 4140, 8630, CF8 (304), CF8M (316), duplex stainless steels, and heat-resistant grades. Whether you need wear resistance, corrosion resistance, high-temperature strength, or low-temperature toughness, we match the alloy to your operating environment.
Service Advantages
A dedicated project manager oversees the entire process — from design review to final delivery — ensuring efficient communication at every stage.
Quotations are typically provided within 24–48 hours. Production progress is updated regularly through photos and production data, with continuous customer feedback collection throughout the project.
Full batch traceability and 24-hour response to quality-related issues ensure reliable post-delivery support.
{{item.score}} Stars
{{item.pre}}%
{{item.nickname ? (item.nickname.slice(0, 2) + '*****') : item.source === 1 ? 'mall buyer' : '--'}}
{{item.comment_time}}
Review in the {{item.country}}
{{itemAttr.params_key}}: {{itemAttr.params_value}}
Contact Us
Contact us now! Our technical team and mechanical engineers are ready to provide one-stop support for your project from requirement review, quotation to delivery.
Related Products
Send E-Mail If You Need Any HelpProfessional Manufacturer of Precision Metal Parts & Conveyor Chains
Quick Links
Custom Castings
Conveyor Chains
Contact Us
E-mail: ma@matechin.com
Tel: 0086 21 56076732
Mobile Phone: 0086 13818971637
Address: 1st Floor, Building 8, No. 868 Xinge Road, Xinqiao Town, Songjiang District, Shanghai, China
Application
About Us
Case Studies
Resource
Copyright © 2026 | Matech Industry Ltd. Sitemap