Myrna Ariati Wahyuaji Narottama Putra Klasifikasi Material Myrna Ariati Wahyuaji Narottama Putra
Klasifikasi Material
Ferrous Alloys Cast Iron
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).
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) %
Komposisi Besi Tuang
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 30 - 40 2 - 5
Klasifikasi Besi Tuang Kelabu
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
Klasifikasi Besi Tuang Nodular
Klasifikasi Austempered Ductile Iron
Ferrous Alloys Carbon Steel
Klasifikasi Baja
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
Klasifikasi Baja Paduan
Klasifikasi Baja Paduan
Klasifikasi Baja Paduan
Ferrous Alloys Stainless Steel
Family of Stainless Steel
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
Austenitic SS
Ferritic SS
Martensitic SS
Duplex SS
Ferrous Alloys Tool Steel
Klasifikasi Tool Steel
Klasifikasi Tool Steel
Tipe Tool Steel
Tipe Tool Steel
Non Ferrous Aluminium Alloys
Klasifikasi Aluminium Alloys
Klasifikasi Aluminium Alloys
Klasifikasi Aluminium Alloys
Klasifikasi Aluminium Alloys
Klasifikasi Aluminium Alloys
Perlakuan Panas Aluminium
Perlakuan Panas Aluminium
Perlakuan Panas Aluminium
Perlakuan Panas Aluminium
Non Ferrous Magnesium Alloys
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
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
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
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
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.
Contoh Magnesium Alloys
Contoh Sifat Magnesium Alloys
Unified Number System (UNS) Metals & Alloys
Unified Number System