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The extremely high level of precision needed within the aerospace industry makes CNC machining a suitable manufacturing process for the sector.

 

This article provides you with a complete guide to aerospace machining and its importance.

 

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If you want to produce high-quality machined parts with a sleek appearance, it’s essential to consider some critical factors related to CNC machining. 

 

Here, we’ve gathered some basic information and important considerations to help you achieve the desired results.

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    Nanpu Road, Xinqiao Street, Bao'an District
    Shenzhen, China, 518104
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Alloy Steel

Introduction to Steel

Steel parts

An alloy made up primarily of iron and carbon, steel is known for its high tensile strength and low costs. The combination of these characteristics has made it a ubiquitous material in the construction, infrastructure, automotive, maritime, tooling, manufacturing and defense industries, among others.

Information of Steel

 

Features Info
Subtypes

4140, 4130, A514, 4340

Process

CNC machining, injection molding, sheet metal fabrication
Tolerance

With drawing: as low as +/- 0.005 mm No drawing: ISO 2768 medium
Applications

Fixtures and mounting plates; draft shafts, axles, torsion bars

Finishing Options

Black Oxide, ENP, Electropolishing, Media Blasting, Nickel Plating, Powder Coating, Tumble Polishing, Zinc Plating

Available Steel Subtypes

Subtypes

Yield Strength

Elongation at Break

 Hardness Density
1018 Low Carbon Steel 60,000 psi 15% Rockwell B90 7.87 g/㎤ 0.284 lbs / cu. in.
4140 Steel 60,000 psi 21% Rockwell C15 7.87 g/㎤ 0.284 lbs / cu. in.
1045 Carbon Steel 77,000 psi 19% Rockwell B90 7.87 g/㎤ 0.284 lbs / cu. in.
4130 Steel 122,000 psi 13% Rockwell C20 7.87 g/㎤ 0.284 lbs / cu. in.
A514 Steel 100,000 psi 18% Rockwell C20 7.87 g/㎤ 0.284 lbs / cu. in.
4340 Steel 122,000 psi 13% Rockwell C20 7.87 g/㎤ 0.284 lbs / cu. in.

 

Surface Finishes for Your Choosing

Name Description Materials Color Texture Link
surface finish powder coating
 Powder Coating Powder coating is a type of coating that is applied as a free-flowing, dry powder. Unlike conventional liquid paint which is delivered via an evaporating solvent, powder coating is typically applied electrostatically and then cured under heat or with ultraviolet light. Aluminum

Black, any RAL code or Pantone number

Gloss or semi-gloss
surface finish electroplating
 Electroplating Electroplated coating preserves the surface of parts and resists rusts and other defects from causing decay by applying electric currents to reduce metal cations.

Aluminum, steel, stainless steel

n/a

Gloss or semi-gloss
surface finish polishing
 Polishing

Ranging from Ra 0.8~Ra0.1, polishing processes use an abrasive material to rub the part’s surface to make the shine more less shiny, depending on your requirements.

All materials

 n/a

Smooth, glossy finish
surface finish painting
 Painting

Painting involves spraying a layer of paint onto the surface of the part. Colors can be matched to a Pantone color number of the customer’s choosing, while finishes range from matte to gloss to metallic.

Aluminum, Stainless Steel, Steel

Custom

Gloss, semi-gloss, flat, metallic, textured

Gallery of Steel Metal Parts

steel parts 1
steel parts 2
steel parts 3
steel parts 4
steel parts 5

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  • Shenzhen Rapid Direct Co., Ltd.
  • Building A12, Haosi Industrial Park
    Nanpu Road, Xinqiao Street, Bao'an District
    Shenzhen, China, 518104
  • +86-13302480516
  • [email protected]
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