VARIASI ARUS DAN SUDUT PENGELASAN PADA MATERIAL
AUSTENITIC STAINLESS STEEL 304 TERHADAP KEKUATAN
TARIK DAN STRUKTUR MAKRO
Vuri Ayu Setyowati 1 , Suheni 2
Teknik Mesin – Institut Teknologi Adhi Tama Surabaya 1,2
Jl. Arief Rahman Hakim 100 Surabaya, 60117
Email : [email protected]
ABSTRACT
Welding is the common method for joining material used in construction and industrial applications.
Variable of welding process is the most important factor affected into the mechanical properties of welded
materials. This study used Shielded Metal Arc Welding (SMAW) as welding method. SMAW method use flux
to protect the metals. Sample preparations were done to make the V groove using 45ᵒ and 60ᵒ as angle of
welding. Variations of heat input also were used as 75A, 85A, and 95A. Characterization of mechanical
properties was analyzed by tensile test and macroscopic analysis showed the different area after welding.
Based on the following experimental result, the highest ultimate tensile strength was obtained by sample
prepared 45ᵒ of V groove angle and 85A of current which is 518 N/mm² and got 449 N/mm² of yield strength.
Increasing current caused the wider weld pool in the sample surface and showed clear grove shape of
welded sample.
Keywords : SMAW welding, Tensile Strength of SS 304 and SS 304L. Macroscopic analysis