Machinability Material Standar AISI dan ASTM

Machinability didefinisikan sebagai kemudahan material untuk di proses machining.
The American Iron and Steel Institute (AISI) telah menetapkan bahwa AISI 1112 Steel memiliki machinability 100%.  Dibandingkan dengan material lain di bawah ini:

Carbon Steels

  • AISI 1015 – 72%
  • AISI 1018 – 78%
  • AISI 1020 – 72%
  • AISI 1022 – 78%
  • AISI 1030 – 70%
  • AISI 1040 – 64%
  • AISI 1042 – 64%
  • AISI 1050 – 54%
  • AISI 1095 – 42%
  • AISI 1117 – 91%
  • AISI 1137 – 72%
  • AISI 1141 – 70%
  • AISI 1141 annealed – 81%
  • AISI 1144 – 76%
  • AISI 1144 annealed – 85%
  • AISI 1144 stress-proof – 83%
  • AISI 1212 – 100%
  • AISI 1213 – 136%
  • AISI 12L14 – 170%
  • AISI 1215 – 136%

Alloy Steels

  • AISI 2355 annealed – 70%
  • AISI 4130 annealed – 72%
  • AISI 4140 annealed – 66%
  • AISI 4142 annealed – 66%
  • AISI 41L42 annealed – 77%
  • AISI 4150 annealed – 60%
  • AISI 4340 annealed – 57%
  • AISI 4620 – 66%
  • AISI 4820 annealed – 49%
  • AISI 52100 annealed – 40%
  • AISI 6150 annealed – 60%
  • AISI 8620 – 66%
  • AISI 86L20 – 77%
  • AISI 9310 annealed – 51%

Stainless Steels and Super Alloys

  • AISI 302 annealed – 45%
  • AISI 303 annealed – 78%
  • AISI 304 annealed – 45%
  • AISI 316 annealed – 45%
  • AISI 321 annealed – 36%
  • AISI 347 annealed – 36%
  • AISI 410 annealed – 54%
  • AISI 416 annealed – 110%
  • AISI 420 annealed – 45%
  • AISI 430 annealed – 54%
  • AISI 431 annealed – 45%
  • AISI 440A – 45%
  • 15-5PH condition A – 48%
  • 17-4PH condition A – 48%
  • A286 aged – 33%
  • Hastelloy X – 19%

Tool Steels

  • AISI A-2 – 42%
  • AISI A-6 – 33%
  • AISI D-2 – 27%
  • AISI D-3 – 27%
  • AISI M-2 – 39%
  • AISI O-1 – 42%
  • AISI O-2 – 42%

Gray Cast Iron

  • ASTM class 20 annealed – 73%
  • ASTM class 25 – 55%
  • ASTM class 30 – 48%
  • ASTM class 35 – 48%
  • ASTM class 40 – 48%
  • ASTM class 45 – 36%
  • ASTM class 50 – 36%

Nodular Ductile Iron

  • 60-40-18 annealed – 61%
  • 65-45-12 annealed – 61%
  • 80-55-06 – 39%

Aluminum / Magnesium Alloys

  • aluminum, cold drawn – 360%
  • aluminum, cast – 450%
  • aluminum, die cast – 76%
  • magnesium, cold drawn – 480%
  • magnesium, cast – 480%


Sumber: dfwmachine.com