Precision Online Stainless Steel CNC Machining Service

Our precision online stainless steel CNC machining service delivers high-quality, custom-engineered parts with tight tolerances. We utilize advanced CNC technology to provide accurate, efficient solutions for a wide range of industries, ensuring durability, performance, and on-time delivery.

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Know About Stainless Steel CNC Machining

Stainless steel CNC machining involves the precise cutting, shaping, and finishing of stainless steel components using advanced CNC technology. It offers high strength, corrosion resistance, and durability, making it ideal for industries requiring strong, reliable, and precise metal parts.

Category	Description
Machining Properties	Stainless steel offers excellent corrosion resistance, strength, and durability, making it ideal for CNC machining. However, it has a high work hardening rate, requiring precise control over cutting speeds and tool selection. Its toughness can lead to longer tool life and reduced chip formation, but it also increases machining time and power consumption.
Machining Parameters	When machining stainless steel, optimal cutting speeds range from 30 to 100 SFM, depending on the grade. Feed rates should be moderate to avoid excessive tool wear. Using carbide tools with a high hardness and sharp edge is crucial. Cutting fluids or coolants are often necessary to prevent overheating and improve surface finish.
Precautions	To ensure efficient machining, select appropriate cutting tools, such as carbide or ceramic, for stainless steel's hardness. Use correct spindle speeds and feed rates to reduce the risk of work hardening. Avoid dull tools and ensure adequate coolant supply to maintain temperatures and improve chip removal. Monitoring tool wear is essential for consistent results.

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Common Used Stainless Steel In CNC Machining

Commonly used stainless steels in CNC machining include grades like SUS201, SUS303, SUS304, SUS316, and SUS440C. These materials offer excellent corrosion resistance, strength, and durability, making them ideal for industries like aerospace, automotive, medical, and food processing.

Stainless Steel	Tensile Strength (MPa)	Yield Strength (MPa)	Fatigue Strength (MPa)	Elongation (%)	Hardness (HRC)	Density (g/cm³)	Applications
Stainless Steel SUS201	515-750	275-480	200-300	35-45	18-22	7.93	Automotive parts, kitchen appliances, industrial equipment
Stainless Steel SUS303	500-700	215-310	150-250	35-50	18-22	7.85	Fasteners, bolts, nuts, fittings
Stainless Steel SUS304	520-720	215-505	200-300	40-60	18-22	7.93	Food processing, medical devices, general-purpose applications
Stainless Steel SUS316	580-720	240-510	250-350	40-55	18-22	7.98	Marine environments, chemical processing, pharmaceutical equipment
Stainless Steel SUS316L	500-690	200-480	220-330	40-55	18-22	7.98	Medical implants, chemical processing, food industry
Stainless Steel SUS420	600-850	450-650	250-350	15-25	50-55	7.75	Surgical instruments, knives, bearings
Stainless Steel SUS430	450-600	220-380	150-200	25-30	25-30	7.70	Automotive trim, kitchen appliances, heating elements
Stainless Steel SUS431	600-750	400-600	200-300	20-35	45-50	7.80	Shafts, valve components, marine applications
Stainless Steel SUS440C	750-1050	620-850	300-400	10-15	55-60	7.75	Ball bearings, valves, high-precision tools
Stainless Steel SUS630 (17-4PH)	1000-1300	900-1150	450-600	10-15	40-45	7.75	Aerospace, oil & gas, marine components
Stainless Steel SUS304L	510-700	205-480	200-300	45-60	18-22	7.93	Food & beverage, pharmaceuticals, chemical processing
Stainless Steel SUS309	620-860	290-450	250-350	30-45	20-25	8.00	Furnace parts, heat exchangers, high-temperature applications
Stainless Steel SUS310	650-950	310-600	250-400	35-50	20-25	8.00	Furnace parts, kilns, high-temperature equipment
Stainless Steel SUS317	580-800	240-500	300-400	30-45	20-25	8.03	Marine environments, chemical reactors, food processing
Stainless Steel SUS321	520-750	230-500	250-350	35-45	20-25	7.93	High-temperature applications, cryogenic tanks, exhaust systems
Stainless Steel SUS410	550-750	250-450	150-250	20-30	45-50	7.75	Turbine blades, knives, precision parts
Stainless Steel SUS440A	700-900	480-620	250-350	10-20	50-55	7.75	Knife blades, ball bearings, high-precision tools
Stainless Steel SUS904L	520-790	220-500	250-350	40-50	22-24	8.00	Chemical processing, pollution control, marine environments
Stainless Steel SUS2205	700-950	450-700	300-450	25-35	30-35	7.80	Offshore rigs, pipelines, storage tanks

Surface Treatment for Stainless Steel CNC Machined Parts

Surface treatment for stainless steel CNC machined parts enhances durability, corrosion resistance, and aesthetics. Common treatments include passivation, electroplating, anodizing, and polishing. These processes improve the material’s performance, making it suitable for harsh environments and high-precision applications.

Custom Stainless Steel CNC Machined Parts

Custom stainless steel CNC machined parts are tailored to specific designs and applications, offering high precision and durability. Using advanced CNC technology, these parts are ideal for industries like aerospace, automotive, medical, and manufacturing, ensuring optimal performance and reliability.

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Machining Suggestions for Stainless Steel

Machining suggestions for stainless steel focus on optimizing tolerances, part sizes, production volumes, and lead times. Key considerations include precision tolerances, minimum wall thickness, and appropriate tooling to ensure high-quality, cost-effective production for various industries like aerospace, automotive, and medical.

Machining Suggestions	Recommended Range/Value	Explanation
General Tolerances	±0.1mm	Standard tolerance for most stainless steel parts, ensuring fit and function for general use.
Precision Tolerances	±0.01mm to ±0.05mm	For high-precision applications, ensuring tighter fits in critical systems like aerospace.
Min Wall Thickness	0.5mm to 1mm	Thin walls provide lightweight structures but must be thick enough for strength and integrity.
Min Drill Size	1mm	Drill sizes smaller than 1mm may affect machining efficiency and tool durability.
Maximum Part Size	Up to 1000mm x 500mm x 500mm	Larger parts require specialized equipment for machining, with higher costs and longer lead times.
Minimum Part Size	0.5mm x 0.5mm	Small parts can be difficult to machine accurately due to tool size limitations.
Production Volume (Low Volume)	10 to 500 parts	Low volume production is cost-effective for prototyping or specialized products.
Production Volume (High Volume)	1000+ parts	High volume is more cost-efficient with optimized production runs and automated processes.
Prototyping	1 to 50 parts	Small prototype runs allow for design adjustments without excessive cost.
Lead Time (Prototyping)	5-15 days	Shorter lead time allows quick feedback on design before moving to full production.
Lead Time (Low Volume)	15-30 days	Moderate lead time needed for quality control and setup of machines for low-volume production.
Lead Time (High Volume)	30-60 days	Longer lead time to optimize setup and ensure high-quality consistent production for large quantities.

Parameter Suggestions for Stainless Steel CNC Machining

Parameter suggestions for stainless steel CNC machining focus on optimizing spindle power, cutting depth, feed rates, and tool materials to enhance efficiency, precision, and part quality. These parameters are crucial for achieving consistent performance and reducing tool wear in complex stainless steel parts.

Parameters	Recommended Range/Value	Explanation
Spindle Power	7.5 to 15 kW	Adequate power ensures efficient cutting, especially when machining hard stainless steels.
Spindle Speed	2000 to 6000 RPM	Higher speeds are suitable for fine cuts, but lower speeds are needed for heavy material removal.
Cutting Depth (Axial)	1 to 3 mm	Shallow depths reduce tool wear, improve surface finish, and prevent excessive heat buildup.
Cutting Depth (Radial)	0.1 to 0.5 mm	Shallow radial cuts minimize cutting forces and tool wear, leading to better surface quality.
Feed Rate	50 to 200 mm/min	A balanced feed rate ensures efficient material removal without compromising surface quality.
Tool Material	Carbide or Ceramic Inserts	Carbide provides durability for high-strength stainless steels, while ceramics offer high heat resistance.
Pitch	0.5 to 2.0 mm	A consistent pitch ensures smooth cutting and helps to avoid vibrations, improving tool life.
Coolant Type	Flood coolant or mist cooling	Helps dissipate heat, reducing thermal distortion and prolonging tool life during high-speed cuts.
Tool Geometry	Positive rake angle, sharp cutting edge	Positive rake improves cutting efficiency and reduces the required force, enhancing tool performance.
Tool Wear Monitoring	Use tool wear sensors or regular inspection	Prevents unplanned downtime, ensuring optimal part accuracy and reducing machine maintenance costs.