CNC Milling of AISI 4340 Steel Alloy Parts

High-Quality CNC Milling for AISI 4340 Steel Parts

Expert CNC Milling of AISI 4340 Steel Alloy Parts
Tailored CNC Milling for AISI 4340 Steel Applications
Product Details Description
ServiceCNC Milling
MaterialSteel Alloy AISI 4340
InspectionFormal Inspection with Dimensional Report
Min Surface Roughness1.6 μm Ra
AccreditationNot required
Surface FinishAs Machined
Tightest Tolerance+/- 0.05mm
File TypeSTP
Secondary FinishCustom secondary finish
Job NotesHeat treatment for hardness 57-62 HRC; Zn-Ni plating (10-15 μm)

Additional Notes

  • Sealing Surface: No scratches; sharp external edges, O.I. 0.3. Use with 4x ISO 3601-017 seals.
  • Laser Etching: All filled areas to be laser etched.

Tolerances

DimensionsTolerances
< 50±0.1 mm
50 – 200±0.15 mm
> 200±0.25 mm
Angles±0.5°

Thread and Chamfer

  • Threads: ISO 5855 MJ, ISO 965 M 16g/6H1
  • Chamfers and Fillets: 0.1 – 0.3 mm

Treatment and Coating

  • Material Specs: AISI 4340 or equivalent (BS970 EN24T, EN 10083-3 34CrNiMo6)
  • Heat Treatment: Oil quench and temper for hardness 57-62 HRC
  • Surface Coating: Zn-Ni plating, 10-15 μm, Type 2 Grade B AMS 2417

Additional Information

  • Part Number: BT104520
  • Date: 11-JUL-2023
  • Issue: 1.0.0
  • Scale: 1:2

China Custom Metal Fabrication & Custom Fabrication Services

CategoryDetails
Machining EquipmentCNC Machining Centers, CNC Lathes, Grinding Machines, Milling Machines, Lathes, Wire EDM Machines, Laser Cutting Machines, CNC Shearing Machines, CNC Bending Machines, etc.
Processing CapabilitiesTurning, Milling, Drilling, Wire EDM, Welding, Casting, Forging, Assembly, etc.
Tolerance±0.005mm
MaterialsAluminum, Copper, Stainless Steel, Ball Bearing Steel, Abrasive Tool Steel, Engineering Plastics, Nylon, and more. (Contact us for other materials.)
Surface TreatmentsBlack Oxide, Polishing, Anodizing, Chrome Plating, Zinc Plating, Nickel Plating, Ion Nitriding, Titanium Nitriding, and more.
Product DesignCustomized as per customer’s drawings or samples.
Inspection ToolsTool Microscopes, Digimatic Micrometers, Inside Micrometers, Dial Gauges, Electronic Digital Calipers, Automatic Height Gauges, Precision Level Detectors, Marble Platforms, Ring Gauges, etc.
Quality Control System100% inspection according to: MIL-STD-105E, ANSI ASQC Z1.4, ABC-STD-105, BS6001, ISO 2859, DIN 40080 before shipment.
Minimum Order Quantity1-10 pcs (Just for samples)

Frequently Asked Question

We can work with a wide range of materials, including metals like aluminum, steel, brass, and titanium, as well as plastics such as acrylic, nylon, and polycarbonate. The choice of material often depends on the specific requirements of your project, including strength, weight, corrosion resistance, and budget.

Answer: The lead time for custom CNC parts can vary based on the complexity of the design, the material used, and the quantity ordered. Generally, standard orders can take anywhere from a few days to several weeks. We prioritize communication and will provide you with a clear timeline based on your specific needs.

 

Answer: Quality assurance is a crucial part of our process. We implement rigorous inspection protocols, including precision measurements, material testing, and visual inspections throughout the production process. We also use advanced CNC machinery that adheres to industry standards, ensuring that every part meets your specifications.

 

Answer: Yes, we specialize in both small and large batch orders. Whether you need a single prototype or a small production run, we can customize our services to meet your requirements. This flexibility allows you to test designs or meet specific project needs without committing to large quantities.

 

Answer: The ordering process is straightforward:

Consultation: Reach out to discuss your project requirements.
Design Submission: Provide your CAD files or design specifications.
Quotation: We’ll give you a detailed quote based on your specifications.
Production: Once approved, we begin manufacturing your parts.
Delivery: After quality checks, your custom parts will be shipped to you.

Answer: We offer design assistance services to help you optimize your part for manufacturability. Our experienced engineers can provide insights on material selection, design modifications, and production techniques to ensure your part functions as intended while being cost-effective.

 

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