Manufacturing knowledge · 6CProto Guides
Engineering decisions, organised
Manufacturing Materials Guides
Choose materials by process, operating conditions and the data that must be verified. A shared material name does not make printed, machined and molded parts equivalent.
Updated October 11, 2026 · 79 material resources
Choose your starting point
Each route below owns a distinct part of the topic. Start with the decision you need to make, then use the focused articles within that route.
CNC Machining Materials
Compare metals and engineering plastics for cutting, stability, wear, corrosion resistance and critical fit.
3D Printing Materials
Compare printing materials within their supported processes and verify the required performance after post-processing.
Injection Molding Materials
Choose a molding grade by mechanical behavior, temperature, shrinkage and the intended validation requirements.
Sheet Metal Materials
Match sheet alloy, temper and thickness to bending, welding, corrosion resistance and cosmetic finish.
Copper vs Aluminum Heat Sinks: Conductivity, Weight and Cost Trade-offs
Conductivity, Weight and Cost Trade-offs
What Are Beryllium Copper Parts Used For?
Read the focused guide for beryllium copper parts used for.
Is billet aluminum really stronger than cast aluminum?
Read the focused guide for is billet aluminum really stronger than cast aluminum.
Thread Inserts vs Tapped Threads in Aluminum Parts
Read the focused guide for thread inserts vs tapped threads in aluminum parts.
Aluminum Temper Designations Explained: T6, T651, and How to Specify
T6, T651, and How to Specify
Material and Finish Compatibility: What Coatings Work on Aluminum, Steel, Brass, and Plastics
What Coatings Work on Aluminum, Steel, Brass, and Plastics
Ultem Plastic: What PEI Gives You That Ordinary Plastics Cannot
What PEI Gives You That Ordinary Plastics Cannot
Ultem vs PEEK: Choosing Between Two Expensive Engineering Plastics
Choosing Between Two Expensive Engineering Plastics
Before you release the project
- Define the function, environment and the question this batch must answer.
- Specify material grade, geometry, quantity, finish and the dimensions that control fit.
- Agree the inspection method and the evidence required to accept the parts.
- Record the drawing revision and approval before production begins.
Common planning questions
Can I choose a material by name alone?
Specify the grade, condition, process and required properties. A shared polymer or alloy family name does not establish identical performance.
Which material records should I request?
Request the records relevant to the project, such as grade identification, material certificates, property data or compliance declarations, and confirm how each relates to the supplied parts.
Move from guidance to a reviewed project
Send the CAD model and drawing with material, quantity, finish and inspection requirements. Use the relevant service page to review the available manufacturing route.