Analisis Sifat Mekanik Pada Material Standar Paduan COR ALSi10Mg(b) Dari Skrap Aluminium

The metal industry in Tegal Regency is classified into ferrous and non-ferrous industries. shipping component the leading producer of industry. problem faced by processing industry, especially Small Medium Industry ship components availability standard materials as raw at affordable prices. Instead, SMEs use scrap material to reduce selling prices, a result which product quality does not meet required specifications. This research made 2 (two) formulas AlSi10Mg(b) from an aluminum mixture where one cast alloy recognized Biro Klasifikasi Indonesia (BKI). study aimed recommend make products according BKI standards. began collecting database composition, then simulating calculations with Excel program obtain theoretical chemical composition so that need for was produced. two are different main formula 1 piston, brake lining supporting pan, elbow, plate well AlSi49 AlMg20 master alloys. simulation results sand-casting method. specimens testing hardness. test show both accordance conditions alloy, namely percentage Silicon (Si) Magnesium (Mg) 9.16% 0.39% while 10.69% 0.22%. Both still Copper (Cu) content exceeds limit above 0.1%. hardness value has met standards 50HBN.