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Normal Materials for CNC Machining

CNC materials:

 

 

Material

Grads

color

Material type

Features and characteristics

Aluminum

5052

Natural

Soft

l  Improved corrosion resistance over 7075

l  General purpose aluminum with Medium strength

l  Good formability, weldability

l  Containes magnesium and silicon

6061

Natural

Soft

6063

Natural

Soft

6082

Natural

Soft

7075

Natural

Soft

l  Higher strength over Aluminum 6061

l  Good fatigue strength

Brass

260

Natural

Soft

l  Good corrosion resistance

l  Resistant to most chemicals

l  Plate stock

Copper

C101

Natural

Soft

l  Oxygen-free electrical copper

l  High electrical conductivity

l  Good corrosion resistance in most environments

l  Weak against acids, halogens sulphides and ammonia solutions

Steel

1018

Natural

Soft

l  Plain low carbon steel

l  Good formability and weldability

l  Case harden only

12L14

Natural

Soft

l  Excellent machinability

l  Case harden only

Stainless Steel

303

Natural

Hard

l  Most commonly used stainless steel

l  Low carbon

l  Better weldability and formability

304

Natural

Hard

l  Most commonly used stainless steel

l  Low carbon

l  Better weldability and formability

316

Natural

Hard

l  Increased corrosion and chemical resistance over 304

l  Increased resistance to cracking and pitting

416

Natural

Hard

l  Free machining

l  Less corosion resistant than 300 series

l  Can be heat treated

17-4 PH

Natural

Hard

l  Higher magnetism than 304 and 316 stainless steel

l  Oxidation and corrosion resistance

Zinc   Alloy

Zamak 3

Natural

Hard

l  excellent resistance to atmospheric corrosion and mechanical   properties

Titanium

Ti-6AI-4V

Natural

Hard

l  Light-weight and high strength

l  High temperature and corrosion resistance

Plastic

ABS

Natural/Black


l  General purpose Nylon

l  Fair flame resistance and good machining

ABS/PC

Natural


l  Excellent impact resistance and toughness

l  good chemical stability

PC/Polycarbonate

Clear/Black


l  High impact-resistance, good toughness

l  High temp resistance

PMMA

Clear/Black


l   Excellent Transparency

l  Good weather Resistance

PA / Nylon66

Natural/Black  30%GF


l  General purpose Nylon

l  Fair flame resistance and good machining

PP

Natural/Black  20%GF


l   Flexible, excellent resistance to fatigue

l  Good chemical stability

POM/Acetal/Delrin

Black/White


l  High stiffness, low friction

l  Excellent dimensional stability

PVC

White/Grey


l  Excellent chemical and corrosion resistance

l  Good flame resistance

l  Low cost

HDPE

White


l  Acid and alkali resistance, resistance to organic solvents

l  Good chemical stability and good mechanical strength

LDPE

White


l  Higher tensile strength, better puncture resistance and tear   resistance

PEEK

Muddy yellow


l  Excellent dimensional stability, good impact strength

l  Stiffness an minimum levels of creep, better impact resistance

l  Excellent machinability

PEI / Ultem 1000

Amber


l  Excellent mechanical properties, electrical insulation, resistance   to radiation, resistance to high and low temperature and wear resistance

l  Good flame retardancy, resistance to chemical reactions and   electrical insulation properties