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Materials
for Precision
Manufacturing

Compare metals, plastics, elastomers, and additive materials for CNC machining, injection molding, sheet metal fabrication, metal stamping, and 3D printing -- with guidance on strength, cost, machinability, forming behavior, finish options, and production fit.

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Material Options

Explore our comprehensive range of materials organized by manufacturing process

CNC Machining Materials

Metal Materials

  • Aluminum
  • Steel, Stainless Steel
  • Brass, Bronze, Copper
  • Titanium, Tungsten, Invar

Plastic

  • ABS, POM (Delrin)
  • PA (Nylon), PC (Polycarbonate), Polypropylene (PP)
  • PMMA (Acrylic), PVC, PTFE (Teflon)
  • PEEK, High-performance plastics
Learn more about CNC materials

Material Guides

Comprehensive material specifications and properties for informed selection

Aluminum

Aluminum Alloys

Lightweight, corrosion-resistant metal ideal for precision machining

Density: 2.7 g/cm³
Tensile Strength: 310 MPa
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Stainless Steel

Stainless Steel

Corrosion-Resistant, versatile steel for a wide range of demanding applications

Density: 8.0 g/cm³
Tensile Strength: 515 MPa
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Brass

Brass

Excellent machinability and corrosion resistance for complex parts and attractive finishes

Density: 8.5 g/cm³
Tensile Strength: 400 MPa
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Titanium

Titanium

High strength-to-weight ratio and high biocompatibility for demanding precision parts

Density: 4.5 g/cm³
Tensile Strength: 950 MPa
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ABS Plastic

ABS

Impact-resistant, stable, and easy to process for durable plastic parts.

Density: 1.05 g/cm³
Tensile Strength: 40 MPa
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POM Plastic

POM (Delrin)

High strength engineering plastic with excellent dimensional stability

Density: 1.41 g/cm³
Tensile Strength: 70 MPa
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PC Plastic

PC (Polycarbonate)

Tough, transparent, and dimensionally stable for durable functional parts

Density: 1.20 g/cm³
Tensile Strength: 65 MPa
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PP Plastic

PP (Polypropylene)

Lightweight, chemical-resistant, and flexible for versatile plastic parts

Density: 0.90 g/cm³
Tensile Strength: 32 MPa
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PA Nylon

PA (Nylon)

Strong, wear-resistant, and durable for demanding engineering parts

Density: 1.14 g/cm³
Tensile Strength: 80 MPa
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HDPE Plastic

HDPE

Lightweight, impact-resistant, and chemical-resistant for durable plastic parts

Density: 0.95 g/cm³
Tensile Strength: 30 MPa
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Design for Manufacturing

Material Selection DFM Guidelines

Our engineering team provides comprehensive Design for Manufacturing guidance to optimize your material selection for cost, performance, and manufacturability.

Material Compatibility Analysis

We analyze your design requirements against material properties to recommend optimal selections for your specific application.

Cost Optimization

Balance performance requirements with cost considerations through material grade selection and design modifications.

Manufacturing Process Optimization

Recommend manufacturing processes and material combinations that reduce lead times and improve quality.

DFM Analysis Process

Find the Right Material

Find the right material for your specific industry and use case

Corrosion-Resistant Metals

Top Corrosion-Resistant Metals

Discover the best metals for marine, chemical, and outdoor applications that resist rust and corrosion.

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Heat Resistant Plastics

How to Choose Heat Resistant Plastics

Complete guide to selecting plastics that withstand high temperatures in automotive and industrial applications.

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Lightweight Metals

Lightweight Metals for Aerospace

Titanium vs Aluminum: Which lightweight metal is best for your high-performance application?

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Biocompatible Materials

Medical Grade Materials Guide

Essential biocompatible materials for medical devices, implants, and surgical instruments.

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Conductive Materials

Best Conductive Materials

Copper, silver, and aluminum: Choose the right conductive material for electronics and electrical applications.

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High Strength Plastics

Engineering Plastics vs Metal

When high-strength plastics like PEEK and POM can replace metal parts in demanding applications.

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Wear Resistant Materials

Wear Resistant Materials

Tool steels and hardened alloys for high-wear applications like tooling, dies, and industrial equipment.

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Food Grade Materials

Food Safe Materials Guide

FDA-approved materials for food processing equipment, packaging, and kitchen appliance components.

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Cost-Effective Materials

Budget-Friendly Material Options

Cost-effective materials that don't compromise quality for prototyping and high-volume production.

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Material Selection FAQ

Common questions about materials and manufacturing processes

How do I choose the right material for my application?

Material selection depends on several factors including mechanical requirements (strength, stiffness), environmental conditions (temperature, chemicals), manufacturing process compatibility, cost constraints, and regulatory requirements. Our engineering team provides free DFM analysis to help you select the optimal material for your specific application.

What's the difference between 6061 and 7075 aluminum?

6061 aluminum offers excellent machinability, weldability, and corrosion resistance, making it ideal for general-purpose applications. 7075 aluminum provides higher strength (nearly twice that of 6061) but is more expensive and less corrosion-resistant. Choose 6061 for cost-effective, general applications and 7075 for high-stress aerospace or performance applications.

Can you source specialty materials not listed here?

Yes, we can source a wide range of specialty materials including exotic alloys, high-performance plastics, and certified materials for specific industries. Our procurement team works with qualified suppliers worldwide to source materials that meet your exact specifications, including material certificates and traceability documentation.

What material certificates do you provide?

We provide mill test certificates (MTCs) for all metallic materials, which include chemical composition and mechanical properties. For plastics, we provide material data sheets and compliance certificates (RoHS, REACH, FDA, USP Class VI) as required. Additional testing and certification can be arranged for critical applications.

How does material choice affect lead time and cost?

Common materials like aluminum 6061, steel, and standard plastics are typically in stock, offering shorter lead times and lower costs. Specialty alloys, high-performance plastics, or non-standard sizes may require special ordering, adding 1-2 weeks to lead time. Material cost varies significantly - aluminum and plastics are generally most economical, while titanium and specialty alloys command premium pricing.

What surface finishes are recommended for different environments?

For outdoor/marine environments, choose anodizing for aluminum or powder coating for steel. For medical applications, passivation for stainless steel or biocompatible coatings are preferred. Electronics applications benefit from conductive finishes or EMI shielding. Our finishing guide provides detailed recommendations based on your specific environmental requirements and performance needs.

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