Custom Stainless Steel Parts
Get precision stainless steel parts from Rapid Manufacture — 20+ years of CNC machining expertise, from prototypes to production. Typical lead times for prototypes and small batches are 3–7 days, with global delivery, multiple surface finishing options, and NDA support available.
- Tolerance down to 0.015mm
- Equipped with 50+ CNC machines
- ISO 9001:2015 certified
Explore Stainless Steel CNC Machining Capabilities
When you need custom stainless steel parts, you want a partner who can handle every step with confidence. With over 20 years of experience, we help you move from prototype to full production. Whether it’s a simple part or a complex geometry, you can rely on consistent precision and on-time delivery—anywhere in the world.
Stainless Steel CNC Milling
CNC mills are effective for geometric designs and rapid production requirements. Our CNC capabilities include both 3-axis and 5-axis mills.
Stainless Steel CNC Turning
CNC turning is a process in which an automated lathe shapes a rotating workpiece. Turning is useful for shaping rounded or cylindrical geometries.
Why Stainless Steel is Widely Used in CNC Machining
Stainless steel is known for its strength, durability, and resistance to corrosion, making it one of the most reliable materials for CNC machining. With a wide range of alloy grades, it meets the needs of industries from medical to aerospace. Its balance of mechanical performance, environmental resistance, and clean finish makes it a go-to choice for parts that must withstand demanding conditions while maintaining long-term reliability.
High Strength and Durability
Outstanding Corrosion Resistance
The chromium content in stainless steel creates a self-healing oxide layer that protects against rust and chemical attack. Grades such as 304 and 316 excel in humid, marine, or chemically aggressive environments, extending service life without frequent replacement. This resistance to corrosion is why stainless steel is trusted in marine hardware, medical tools, and chemical processing systems.
Heat and Wear Resistance
Biocompatibility and Cleanability
Attractive Surface and Aesthetic Finish
Precision Machining Expertise Required
Compared to aluminum, stainless steel is harder and more challenging to machine due to its work-hardening nature. This requires optimized cutting tools, cooling methods, and process expertise. Our experience and advanced CNC capabilities ensure stainless steel parts are produced with precision, efficiency, and consistent quality, even for complex geometries.
Common Stainless Steel Grades and Their Key Properties
| Grade | Density (g/cm³) | Tensile Strength (MPa) | Yield Strength (MPa) | Corrosion Resistance | Machinability | Surface Finish Options | Typical Applications |
|---|---|---|---|---|---|---|---|
| 303 | 7.90 | ~620 | ~240 | Good; less resistant than 304/316 | Excellent; free-machining grade | Polishing, passivation | Shafts, fasteners, fittings |
| 304 | 8.00 | ~621 | ~241 | Excellent; general-purpose resistance | Moderate | Polishing, bead blasting, passivation | Food equipment, piping, consumer goods |
| 316 | 8.00 | ~579 | ~290 | Superior; marine & chemical resistance | Moderate | Polishing, passivation, electropolishing | Marine parts, valves, medical devices |
| 410 | 7.75 | ~450 | ~275 | Fair; less resistant than austenitic grades | Moderate to difficult | Polishing, heat treatment | Automotive, pump shafts, industrial tools |
| 17-4 PH | 7.75 | ~930 | ~725 | Good; with high strength after heat treatment | Moderate | Polishing, passivation, heat treatment | Aerospace, surgical instruments, high-strength components |
Why Choose Our Stainless Steel CNC Machining Services?
Experienced Team
Fast Turnaround
Quality Assurance
Competitive Pricing
Beyond CNC Machining - Rapid Manufacture
Founded in 2002, Rapid Manufacture is the manufacturing service brand of Shenzhen RJC Industrial Co., Ltd. Based in Shenzhen, our team ensures that every project—from concept to finished part—is handled with precision and care, so you can rely on consistent quality and timely delivery.
To better serve North American customers, we established RJC AMERICAN INC in California in 2021, providing local support for order management and project coordination.
With our full manufacturing capabilities under one roof, you can move seamlessly from prototyping to production, simplify supplier management, and control costs—all while benefiting from China’s efficient manufacturing ecosystem.
20+
Years in Business
150+
Team Members
10,000+
Projects Completed
3,000+
Companies Served
50+
Countries Shipped
Ready to Get Started?
Upload your design files to receive pricing and lead times. Our team is ready to help you bring your stainless steel parts to life with precision and efficiency.
Our Stainless Steel CNC Machining Process
From design to delivery, all in one place. We can manufacture and manage your parts flexibly and cost effectively.
Upload Your Design
Upload your CAD files or drawings directly to our platform. We’ll process it and provide pricing and lead times.
Design Review & Feedback
Our engineers will review your design, provide manufacturability feedback (DFM), and ensure it meets production standards.
Production & Machining
Once approved, we begin the CNC machining process using advanced equipment to deliver precise, high-quality parts.
Quality Control & Delivery
Your parts undergo thorough quality checks before being shipped on time, meeting all specifications and quality standards.
Industries We Serve – CNC Machined Stainless Steel Parts
What Our Customers Say
Hear from companies that trust our CNC machining services
FAQs about Stainless Steel CNC Machining
Browse through our most common queries below to learn more about our stainless steel CNC machining services, pricing, lead times, and more. If you don’t find what you’re looking for, feel free to contact us for further assistance.
We work with a wide range of stainless steel grades, including 303, 304, 316/316L, 410, 416, 420, and 17-4 PH. Each grade has different strengths—such as corrosion resistance, machinability, or high strength—so we can help you choose the right material for your application.
Our standard tolerance is ±0.015 mm, and tighter tolerances can be achieved depending on the design and grade. For critical components (medical, aerospace), we can discuss custom tolerance requirements with the engineering team.
Yes. We offer bead blasting, polishing, passivation, electroplating, and brushing to improve appearance, wear resistance, or corrosion protection. Medical and food-grade finishes are also available.
We supply precision stainless steel parts for automotive, aerospace, medical, industrial machinery, and energy/oil & gas. Applications range from brackets and gears to surgical tools, valves, and housings.
Yes. We support rapid prototyping, low-volume runs, and large-scale production. Our flexible setup and automated quoting system allow us to provide quick lead times without compromising quality.
All parts undergo strict in-process inspection and final QC with CMM and other measuring equipment. We also sign NDAs upon request and follow a secure data management process to protect customer designs.
Lead times vary depending on part complexity and order size. Prototypes are typically delivered within 3–7 days, while production runs may take 2–4 weeks. Expedited services are available if needed.
Simply upload your CAD files (STEP, STP, IGES, PDF drawings) through our online platform. You will receive a detailed quote—covering material, machining, and finishing—within 24 hours.
Request Your Stainless Steel CNC Machining Quote Today
Upload your CAD files, our engineers will contact you to optimize your design and put it into production when it is ready.
