K2 .pptx - Teknologi Bahan Konstruksi dan Korosi Jurusan...

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Teknologi Bahan Konstruksi dan Korosi Jurusan Teknik Kimia Fakultas Teknik UNIVERSITAS SERANG RAYA 1
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Pendahuluan 2 (Peters & Timmerhaus, 1991)
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3 Kemungkinan- kemungkinan kondisi operasi yang lebih beresiko, memaksa seorang chemical engineer untuk mencari suatu material konstruksi yang dapt diandalkan, efektif dan efisien.
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4 What should we do ?? Metallurgist MUST HAVE a working knowledge of chemical plant environment Chemical engineering should also UNDERSTAND something of the material that make the equipment and process possible
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5 Jenis-Jenis Material
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6 Beberapa sifat teknis yang harus diperhatikan sewaktu memilih bahan : A. Sifat fisik : 1.kekuatan 2. sifat mulur 3. sifat getas 4. sifat liat 5. Sifat elastisitas 6. Sifat plastisitas (ductilitas) 7. Kekerasan 8. daya hantar panas 9. sifat muai panas 9. daya hantar listrik 10.massa jenis bahan 11. Titik cair/lebur suhu B. Sifat teknik 1) Sifat mampu cor 2) Sifat mampu bentuk panas (sifat mampu tempa dan mampu roll) . 3) Sifat mampu bentuk dingin (membengkok, cetak dalam) 4) Sifat mampu las 5) Sifat mampu mesin 6) Sifat mampu keras C. Sifat kimia 7) Sifat tahan korosi 8) Sifat tahan panas
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7 Logam Kuat, ulet, mudah dibentuk dan bersifat penghantar panas dan listrik yang baik
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8 Logam Logam dapat dikelompokan dalam 2 bagian berdasarkan kandungan besi yaitu : 1. Ferrous alloys(paduan logam yang mengandung unsur besi (Fe) ) 2. Non-Ferrous alloys (paduan logam tanpa kandungan besi (Fe) ) a). Logam Ferro (Besi) Logam Ferro adalah suatu logam paduan yang terdiri dari campuran unsur karbon dengan besi. Jenis logam ferro : 3. Besi Tuang (cast iron, 2% C) 4.Baja karbon sedang 4. Besi Tempa (wrought iron, 0,5% C) 5.Baja karbon tinggi 5. Baja Lunak (Mild steel, 0,03-0,05% C) 6. Baja Karbon tinggi+campuran
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9 b) Logam Non ferro Logam Non-Ferro (Non-Ferrous Metal) ialah jenis logam yang secara kimiawi tidak memiliki unsur besi atau Ferro (Fe), oleh karena itu logam jenis ini disebut sebagai logam bukan Besi (non Ferro) Terdapat beberapa logam non ferro : 1. Timbal (Pb) 2. Titanium (Ti) 3. Nikel (Ni) 4. Timah (Sn) 5. Seng (Zn) 6. Mangan (Mn) 7. krom (Cr) 8. Aluminium (Al) 9. Tembaga (Cu) 10. Magnesium (Mg) 11.Antimony, Stibium (Sb)
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10 Nickel and its alloy Nickel exhibits high corrosion resistance to most alkalies. Nickel- clad steel is used extensively for equipment in the production of caustic soda and alkalies. The strength and hardness of nickel is
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