Stainless steel parts manufacturing
Expert CNC machining services for stainless steel components with superior corrosion resistance, strength, and aesthetic appeal.
- Source Factory
- Reasonable price
- Certified Materials
- Timely delivery
Stainless Steel Parts Machining Services
What is stainless steel?
Stainless steel is a highly corrosion-resistant alloy steel, usually containing at least 10.5% chromium. Due to its resistance to heat, corrosion, strength and smooth surface, stainless steel is used in a wide variety of industries, especially those that require durability and long-term reliability from the material.
Properties of Stainless Steel
Stainless steel balances corrosion resistance, mechanical strength, hygiene and finishability — making it the go-to choice for components that require durability and a clean appearance.
Corrosion Resistance
Chromium forms a protective layer that resists rust and chemical attack, delivering long-term performance even in demanding environments.
Strength & Durability
Retains excellent strength and toughness across a wide temperature range, ensuring reliable performance and resistance to fatigue.
Hygienic Properties
Its smooth, non-porous surface is simple to clean and sterilize, making it ideal for medical equipment and food-processing parts.
Aesthetic Appeal
Provides a sleek, high-quality finish that conveys modern style, which can be enhanced through bead blasting or electropolishing.
Stainless Steel Types
We machine a wide range of stainless steel grades, categorized into four main groups:
Austenitic Stainless Steel
Grades: 304, 304L, 316, 316L, 321
Features: Excellent corrosion-resistant, tough, non-magnetic.
Applications: Food processing, medical instruments, marine components.
Martensitic Stainless Steel
Grades: 410, 420, 440C
Features: High hardness, good wear resistance, heat-treatable.
Applications: Turbine blades, surgical instruments, valves, cutlery.
Ferritic Stainless Steel
Grades: 430, 446
Features: Strong magnetism, good stress corrosion resistance.
Applications: Automotive exhausts, appliances, decorative components.
Duplex Stainless Steel
Grades: 2205, 2507
Features: High hardness, good wear resistance, heat-treatable.
Applications: Turbine blades, surgical instruments, valves, cutlery.
Common Stainless Steel Materials Performance Comparison Table
Grade | Tensile Strength (MPa) | Yield Strength (MPa) | Elongation (%) | Hardness (HRB) | Primary Applications |
304 Stainless Steel | 515-720 | 205-310 | 40-60 | 70-90 | Food processing, medical devices, general-purpose |
316 Stainless Steel | 580-760 | 240-510 | 40-55 | 75-95 | Marine environments, chemical processing, pharmaceutical |
303 Stainless Steel | 500-700 | 215-310 | 35-50 | 75-90 | Fasteners, bolts, nuts, fittings |
17-4 PH (630) | 1000-1300 | 900-1150 | 10-15 | 40-45 HRC | Aerospace, oil & gas, marine components |
420 Stainless Steel | 600-850 | 450-650 | 15-25 | 50-55 HRC | Surgical instruments, knives, bearings |
440C Stainless Steel | 750-1050 | 620-850 | 15-25 | 55-60 HRC | Ball bearings, valves, high-precision tools |
Our Stainless Steel Machining Services
One-stop stainless steel production: prototype, validation and high-volume manufacturing with in-line QC and finishing.
Rapid Prototyping
Get functional prototypes in as little as 3-5 days to validate your design before moving to production. Our rapid prototyping service helps reduce development time and costs.
- 3-5 day turnaround for most projects
- Tolerances as tight as ±0.005"
- Free DFM analysis with every quote
- Multiple material options available
- Support for complex geometries
Mass Production
Efficient high-volume manufacturing with consistent quality control. Our production lines are optimized for cost-effective large runs.
- Volume production from 1,000 to 100,000+ units
- Statistical process control for consistent quality
- Lean manufacturing principles
- Just-in-time delivery options
- Competitive pricing for volume orders
CNC Milling (3–5 axis)
Precision surface tolerance to ±0.01 mm on complex geometries and multi-sided parts.
CNC Turning & Turn-Mill
High-speed turning and integrated machining for shaft-like and complex concentric parts.
5-axis Machining
Reduce the number of setups for free-form surface parts and impellers to enhance machining accuracy.
3D Metal Printing & Additive
Rapid iteration for complex internal channels and lightweight structures.
Surface Finishing
Bead blast, electropolishing, passivation, anodic cleaning, and polishing to spec.
Assembly & Sub-assembly
Kitting and small-assembly support before shipping to your line.
Common Stainless Steel Machined Parts
Stainless steel machined parts are used in a wide range of applications such as mechanical equipment, automated systems, automotive industry, aerospace and many others.
- Blade
- Bearing housings
- Connector
- Support plate
- Retainer plate
- Gear shaft
- Turntable
- Base
- Tie rods
- Electrode
- Connection ring
- Thrust ring
- Guide rail
- Rack
- Bearing outer ring
- Conductive ring
- Nozzle
- Motor housing
- Water Hose Connector
- Air Exhaust Hose
- Slider
Materials
100+ materials can be freely selected to meet your customized processing needs!
Metals
Metallic materials are rugged and offer excellent strength and durability.
Plastics
Lightweight and flexible, used in a wide range of industries.
Composites
High-performance materials that combine strength and lightweight.
Why Choose Allied Metal
We understand the unique challenges faced by SMEs and brand owners in bringing products to market.
Cost-Effective Solutions
We offer competitive pricing without compromising quality, with options for staged payments to ease cash flow.
Free DFM Consultation
We provide Design for Manufacturability advice to optimize your designs and reduce production costs.
Fast Response Times
Quick quotes and rapid prototyping ensure your product development stays on schedule.
One-Stop Service
From prototyping to finishing, we handle all manufacturing steps to simplify your supply chain.
Quality Guarantee
Rigorous quality control and inspection processes ensure consistent, reliable parts every time.
Partnership Approach
We work as an extension of your team, providing technical support throughout the product lifecycle.
FAQ
Stainless steel is relatively difficult to machine, especially for high-strength types. The use of appropriate machining tools and methods can effectively solve this problem.
Although stainless steel has good corrosion resistance, corrosion may still occur in specific environments, such as prolonged exposure to strong acids or bases. Keeping stainless steel parts clean and properly maintained can extend their service life.
The price of stainless steel is affected by a number of factors, including the price of raw materials and processing methods. We offer competitive pricing for custom machining to help our customers achieve efficient production.
When choosing a stainless steel material, you need to consider the environment in which it will be used, the required strength, corrosion resistance and other factors. Our team of experts can recommend the most suitable material for your needs.
Stainless steel is a durable, corrosion-resistant alloy commonly used across various industries. Here are its key features:
- Corrosion resistance：
With at least 10.5% chromium, stainless steel forms a protective oxide layer when exposed to oxygen, shielding it from moisture, chemicals, and high temperatures. - High strength:
It offers excellent tensile and compressive strength, making it ideal for high-pressure, heavy-duty applications in sectors like construction, aerospace, and machinery. - Heat resistance:
Stainless steel performs well at elevated temperatures. High-chromium varieties resist oxidation and corrosion, making them suitable for high-heat environments like boilers and exhaust systems. - Ease of machining:
Despite its hardness, stainless steel is easily machinable through common processes such as welding, cutting, and stamping, making it efficient for mass production. - Aesthetic appeal and hygiene:
Its smooth, shiny surface is not only visually appealing but also easy to clean, making it popular in kitchenware and medical equipment. - Wear resistance:
Stainless steel’s durability in friction-prone environments makes it a top choice for components like bearings and pump bodies. - Eco-friendly:
As a recyclable material, stainless steel is both sustainable and long-lasting, reducing resource waste when recycled.
- Corrosion resistance：
If you haven’t found the answer you’re looking for, please review our CNC Machining FAQs page or contact us directly for details and a quote.
Ready to start your next stainless steel part?
Upload your design files for a free, no-obligation quote. Our team will review your requirements and provide pricing within 24 hours.
