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Myrna Ariati Wahyuaji Narottama Putra
Klasifikasi Material Myrna Ariati Wahyuaji Narottama Putra
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Klasifikasi Material
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Ferrous Alloys Cast Iron
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Tipe Besi Tuang White Cast Iron Grey Cast Iron (FC) Mallable Cast Iron
Ductile Cast Iron (FCD) Austempered Ductile Iron (ADI) Matrix: Ferritic, pearlitic, austenitic, martensitic, bainitic (austempered).
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Komposisi Besi Tuang 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) %
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Komposisi Besi Tuang
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Sifat Mekanik Besi Tuang
UTS (Kg/mm2) Elongasi (%) Grey Cast Iron(FC) 10 – 35 < 1 Mallable Cast Iron 40 – 47 15 – 20 Nodular Cast Iron (FCD) 45 – 55 3 – 20 Austempered Ductile Iron (ADI) > 100 4 – 7 Vermicular (Compacted Graphite) Cast Iron 2 - 5
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Klasifikasi Besi Tuang Kelabu
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Klasifikasi Besi Tuang Kelabu
Class Symbol UTS (kg/mm2) Hardness (HB) Class 1 FC 10 10 min 201 max Class 2 FC 15 15 min 212 max Class 3 FC 20 20 min 223 max Class 4 FC 25 25 min 241 max Class 5 FC 30 30 min 262 max Class 6 FC 35 35 min 277 max
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Klasifikasi Besi Tuang Nodular
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Klasifikasi Austempered Ductile Iron
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Ferrous Alloys Carbon Steel
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Klasifikasi Baja
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Klasifikasi Baja Paduan
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
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Klasifikasi Baja Paduan
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Klasifikasi Baja Paduan
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Klasifikasi Baja Paduan
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Ferrous Alloys Stainless Steel
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Family of Stainless Steel
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Properties of Stainless Steel
Alloy Group Magnetic Response1 Work Hardening Rate Corrosion Resistance2 Hardenable Austenitic Generally No Very High High By Cold Work Duplex Yes Medium No Ferritic Martensitic Quench & Temper Precipitation Hardening Age Harden Ductility High Temperature Resistance Low Temperature Resistance3 Weldability Low
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Austenitic SS
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Ferritic SS
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Martensitic SS
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Duplex SS
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Ferrous Alloys Tool Steel
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Klasifikasi Tool Steel
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Klasifikasi Tool Steel
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Tipe Tool Steel
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Tipe Tool Steel
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Non Ferrous Aluminium Alloys
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Klasifikasi Aluminium Alloys
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Klasifikasi Aluminium Alloys
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Klasifikasi Aluminium Alloys
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Klasifikasi Aluminium Alloys
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Klasifikasi Aluminium Alloys
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Perlakuan Panas Aluminium
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Perlakuan Panas Aluminium
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Perlakuan Panas Aluminium
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Perlakuan Panas Aluminium
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Non Ferrous Magnesium Alloys
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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 1 huruf Paduan lain C = Paduan ketiga Klasifikasi Temper -T6 = solution treatmen dan pemanasan aging
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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
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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
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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
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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.
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Contoh Magnesium Alloys
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Contoh Sifat Magnesium Alloys
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Unified Number System (UNS)
Metals & Alloys
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Unified Number System
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