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Klasifikasi Material Myrna Ariati Wahyuaji Narottama Putra.

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Presentasi berjudul: "Klasifikasi Material Myrna Ariati Wahyuaji Narottama Putra."— Transcript presentasi:

1 Klasifikasi Material Myrna Ariati Wahyuaji Narottama Putra

2 Klasifikasi Material

3 Ferrous Alloys Cast Iron

4 1.White Cast Iron 2.Grey Cast Iron (FC) 3.Mallable Cast Iron 4.Ductile Cast Iron (FCD) 5.Austempered Ductile Iron (ADI) Matrix: Ferritic, pearlitic, austenitic, martensitic, bainitic (austempered). Tipe Besi Tuang

5  Komposisi Besi Tuang Utama : Fe (besi) Paduan : C (karbon) = 2.75 – 4.00% Si (silikon) = 0.75 – 3.00% Mn (mangan) = 0.25 – 1.50% P (posfor) = 0.02 – 0.75% S (sulfur) = 0.02 – 0.2%  Carbon Equivelent : CE (%) = C (%) + 0,33 (Si + P) % Komposisi Besi Tuang

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7 Sifat Mekanik Besi Tuang UTS (Kg/mm2)Elongasi (%) Grey Cast Iron(FC)10 – 35< 1 Mallable Cast Iron40 – 4715 – 20 Nodular Cast Iron (FCD)45 – 553 – 20 Austempered Ductile Iron (ADI) > 1004 – 7 Vermicular (Compacted Graphite) Cast Iron

8 Klasifikasi Besi Tuang Kelabu

9 ClassSymbolUTS (kg/mm2) Hardness (HB) Class 1FC 1010 min201 max Class 2FC 1515 min212 max Class 3FC 2020 min223 max Class 4FC 2525 min241 max Class 5FC 3030 min262 max Class 6FC 3535 min277 max

10 Klasifikasi Besi Tuang Nodular

11 Klasifikasi Austempered Ductile Iron

12 Ferrous Alloys Carbon Steel

13 Klasifikasi Baja

14 A = alloy, basic open hearth B = carbon, acid Bessemer C = carbon, basic open hearth D = carbon, acid open hearth E = electric furnace Contoh: AISI C1050 adalah baja karbon, basic-open hearth steel dg 0.50 % karbon Huruf lain adalah H- Hardenability Contoh; 4340H Klasifikasi Baja Paduan

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18 Ferrous Alloys Stainless Steel

19 Family of Stainless Steel

20 Properties of Stainless Steel Alloy GroupMagnetic Response 1 Work Hardening Rate Corrosion Resistance 2 Hardenable AusteniticGenerally NoVery HighHighBy Cold Work DuplexYesMediumVery HighNo FerriticYesMedium No MartensiticYesMedium Quench & Temper Precipitation Hardening YesMedium Age Harden Alloy GroupDuctility High Temperature Resistance Low Temperature Resistance 3 Weldability AusteniticVery High DuplexMediumLowMediumHigh FerriticMediumHighLow MartensiticLow Precipitation Hardening MediumLow High

21 Austenitic SS

22 Ferritic SS

23 Martensitic SS

24 Duplex SS

25 Ferrous Alloys Tool Steel

26 Klasifikasi Tool Steel

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28 Tipe Tool Steel

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30 Non Ferrous Aluminium Alloys

31 Klasifikasi Aluminium Alloys

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36 Perlakuan Panas Aluminium

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40 Non Ferrous Magnesium Alloys

41 Klasifikasi Paduan Magnesium AZ91C-T6 2 huruf Elemen paduan utama A = aluminium Z = zinc 2 angka Jumlah paduan utama 9 = 9% Al 1 = 1% Zn Klasifikasi Temper -T6 = solution treatmen dan pemanasan aging 1 huruf Paduan lain C = Paduan ketiga

42 Kode-kode penandaan ASTM  A - Aluminium  E - Rare earths  H - Thorium  K - Zirconium  M - Manganese  Q - Silver  T - Tin  Z - Zinc  F - As fabricated  O - Annealed  H10 and H11 - slightly strain hard  H23, H24, H26 - strain hardened and partially annealed  T4 - artificially aged  T6 - Solution treat, aged  T8 - Solution treat, cold work, aged

43 Contoh Magnesium Alloys  AZ91C-T6: 9Al-0.7Zn-0.13Mn Kekuatan menengah (91 MPa yield, 275 MPa tensile), keuletan baik  K1A: 1Zr Kapasitas redam tinggi  QH21A: 2.5Ag-1Th-0.7Zr Komponen pesawat udara untuk hingga 250˚C 207 MPa yield, 275 MPa tensile

44 Contoh Magnesium Alloys  AZ91B-F Paduan untuk proses die casting  AM60A-F Roda automotive, ketangguhan baik, kekuatan baik.  AS41A-F Ketahanan creep baik hingga 175˚C

45 Contoh Magnesium Alloys  AZ31B-F Batang ekstrusi dan dibentuk untuk komponen baterai, sifat mekanis menengah jika digunakan untuk struktur.  HK31A-H24 Sheet and plate, yield stress 205 MPa dan UTS 260 MPa, mampu las amat baik.

46 Contoh Magnesium Alloys

47 Contoh Sifat Magnesium Alloys

48 Unified Number System (UNS) Metals & Alloys

49 Unified Number System


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