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COMPREHENSIVE RANGE OF MACHINING MATERIALS

CNC Machining Materials

We machine more than 20 engineering-grade metal and plastic materials. There are limitations on the sizes and thicknesses of some metals and plastics because not every part can be made in every material. Custom machining consists of a surprisingly diverse set of works.


With seemingly endless options for customization, materials, and techniques, cnc machining can produce parts for many industries and people’s needs. We use the newest 5 axis cnc equipment (Haas UMC 750 and Haas VF-5SS ) as well as all fashioned conventional lathe and milling machines (Bridgeport, Hardinge). If you require a material that is not on the list or have specific questions, please let us know and call our cnc machine shop ( we do not machine wood parts).

Aluminum
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  • Improved corrosion resistance over 7075
  • General purpose aluminum with Medium strength
  • Good formability, weldability
  • Contains Magnesium and Silicon

Electronic hardware, prototypes, aircraft fittings, camera lens mounts, couplings, marines fittings and hardware

  • Higher strength over Aluminum 6061
  • Good fatigue strength

Electronic hardware, prototypes, aircraft fittings, camera lens mounts, couplings, marines fittings and hardware

Brass
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  • Good corrosion resistance
  • Resistant to most chemicals
  • Plate stock

Electronic hardware and contacts, fittings, commercial products, Aerospace

Copper
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  • Oxygen-free electrical copper
  • High electrical conductivity
  • Good corrosion resistance in most environments
  • Weak against acids, halogens sulphides and ammonia solutions

Electrical contacts, general engineering, automotive, domestic appliances

Plastics
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  • Excellent dimensional stability, good impact strength
  • Stiffness and minimal levels of creep, better impact resistance
  • Excellent machinability

Test sockets, switches, connectors

PVC

  • Excellent chemical and corrosion resistance
  • Good flame resistance
  • Low cost

Used for everything, from construction profiles to medical devices, from roofing membranes to credit cards, from children’s toys to pipes for water and gas

Nylon 6/6

  • General purpose Nylon
  • Fair flame resistance and good machining

Insulators, bearings

Hastelloy
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  • Excellent mechanical strength, especially at high temperatures
  • Both highly resistant to corrosion and oxidation

Pressure vessels of some nuclear reactors, chemical reactors, distillation equipment, pipes and valves in chemical industry

Alloy Steel
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4041

  • Good toughness and strength
  • Direct hardening and heat treatable
  • Harder than CR 1018

Higher stress applications needing the strength of an alloy

Steel

1018

  • Plain low carbon steel
  • Good formability and weldability
  • Case harden only

Rivets and parts requiring strong welds

12L14

  • Excellent machinability
  • Case harden only

Endless commercial products; probably more pounds used in turned products than any other bar stock

1137

  • High carbon, higher strength
  • Direct hardening

Higher stress applications, gears, shafts, studs

Stainless Steel
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304

  • Most commonly used stainless steel
  • Low carbon
  • Better weldability and formability

Household and industrial applications: screws, machinery parts, car header, food-handling equipment

316

  • Increased corrosion and chemical resistance over 304
  • Increased resistance to cracking and pitting

Medical implants and surgical instruments, aerospace

416

  • Free machining
  • Less corrosion resistant than 300 series
  • Can be heat treated

Applications that need less corrosion resistance, more hardness, or lower cost

17-4 PH

  • Higher magnetism than 304 and 316 stainless steel
  • Oxidation and corrosion resistance

Medical, aerospace, applications needing corrosion resistance and hardness

Molybdenum
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  • Low thermal expansion
  • Consists of around 36% nickel and 64% iron

Frequently used in the electronics industry for semiconductor supports and glass sealing

Tungsten
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A95

  • Highest melting point and the highest tensile strength
  • Extremely durable

Light bulb filaments, X-ray tubes, electrodes, superalloys, radiation shielding and military applications in penetrating projectiles

Kovar
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ASTM F15

  • Thermal expansion similar to glass
  • Allow for glass sealing

Light bulbs, vacuum tubes, cathode ray tubes, and in vacuum systems in chemistry and other scientific research

Titanium
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Ti-6Al-4V

  • Light-weight and high strength
  • High temperature and corrosion resistance

Aircraft industry, jewelry, medical implants

Invar
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64FeNi

  • Uniquely low coefficient of thermal expansion
  • Consists of around 36% nickel and 64% iron

Used where high dimensional stability is required: instruments, clocks, seismic creep gauges, valves in engines and antimagnetic watches

Get in touch

254 Kinney Drive
San Jose, CA 95112

Call Us

TEL: (405) 291-5921
Email: sales@acmanufacturing.com