Stainless Steel

Stainless Steel: A Paradigm of Toughness, Corrosion Resistance, and Precision Machining

Stainless steel is one of the most commonly used high-performance metals in CNC machining, renowned for its exceptional mechanical strength, heat resistance, and excellent corrosion resistance in harsh environments. From medical devices and the food industry to aerospace, stainless steel components are central to ensuring long-term durability and structural integrity.

At Dewintech, we understand the challenges of stainless steel machining, such as work hardening, high cutting forces, and heat dissipation issues. By employing high-performance carbide tools, high-pressure cooling systems, and optimized cutting path algorithms, we can efficiently machine various grades of stainless steel (such as austenitic 304/316L, martensitic 420, precipitation-hardening 17-4 PH, etc.). Whether it’s medical implants requiring extreme surface finish or high-strength industrial structural components, Dewintech ensures the perfect balance of tolerance and performance.

Technical Specifications

PropertyTypical Value (3xx – 4xx, PH)Unit
Tensile Strength515 – 1300MPa
Yield Strength205 – 1100MPa
Density7.70 – 8.05g/cm³
Hardness150 – 450HB/HRC
Thermal Conductivity11.2 – 21.5W/m·K
Melting Point1370 – 1510°C
Available ProcessesCNC Milling, CNC Turning, Swiss Machining, Laser Cutting

Why choose Dewintech for stainless steel CNC machining?

  1. As a supplier of precision stainless steel parts, Dewintech’s core strengths lie in its precise control over material properties:
  2. Extensive Material Support: We maintain a wide range of raw materials in stock, including the most commonly used 304, the chlorine-resistant 316L (Medical/Marine Grade), the high-hardness 440C, and the high-strength 17-4 PH.
  3. High Precision and Surface Quality: Stainless steel cutting is prone to burrs. Dewintech possesses mature deburring processes and precision grinding capabilities, ensuring critical tolerances of ±0.01mm and providing a high mirror finish with a surface roughness of Ra 0.4μm or better.
  4. Professional Surface Treatment Services: To further enhance the performance of stainless steel, we offer one-stop post-processing solutions, including passivation to enhance corrosion resistance, electropolishing, and vacuum heat treatment, all fully compliant with industry standards.
  5. Strict Industry Compliance: Our production process follows a strict quality management system, ensuring that every stainless steel part we provide comes with complete material certification (MTR) and quality inspection reports, meeting the stringent requirements of the medical and industrial fields.

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