Studi Pengujian Sifat Mekanik Material Baja ST-37

Regna Tri Jayanti

Authors

Regna Tri Jayanti Politeknik Industri Logam Morowali

Keywords:

Sifat Mekanik, Baja Karbon, ST- 37, Uji Kekerasan, Uji Tarik, Uji Impak

Abstract

Pengujian mekanik bahan sangat penting dilakukan untuk mengkarakterisasi sifat mekanik dalam rangka memberikan data pendukung dan spesifikasi dari bahan guna mempercepat proses desain dan inovasi. Penelitian ini bertujuan untuk memberikan informasi sebanyak mungkin sifat mekanik ST-37 yang merupakan material baja karbon dengan menggunakan alat Future Tech Brinell Hardness Tester Type FB-3000 LC, Universal Testing Machine Zwick Roell, dan Charpy Impact Machine. Prosedur pengujian mekanis dan persiapan spesimen dikerjakan dengan menggunakan prosedur (ASTM E 10 – 17 untuk pengujian kekerasan, ASTM A 370 – 03a untuk pengujian tarik, dan ASTM E 23 - 12c untuk pengujian impak). Hasil pengujian menunjukkan bahwa material baja ST – 37 memiliki sifat mekanik yang cukup baik dilihat dari nilai kekerasan yang berada pada rentang 200 – 230 HB, nilai kekuatan tarik ST – 37 diantara 301 – 327 Mpa dan ketangguhan yang tinggi dengan nilai penyerapan energi spesimen sekitar 35 – 42 Joule. Faktor rancangan material dan perlakuan serta alat yang digunakan dalam mempersiapkan material sesuai dengan standar dimensi pengujian perlu diperhatikan karena dapat mempengaruhi nilai pengujian.

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Author Biography

Regna Tri Jayanti, Politeknik Industri Logam Morowali

Jurusan Teknik Kimia Mineral

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