Effect of TIG Welding and Manual Metal Arc Welding on Mechanical Properties of AISI 304 and 316L Austenitic Stainless Steel Sheets

2017 ◽  
Vol 750 ◽  
pp. 26-33
Author(s):  
Alaa Abu Harb ◽  
Ion Ciuca ◽  
Robert Ciocoiu ◽  
Mihai Vasile ◽  
Adrian Bibis ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Stainless Steel ◽  
Austenitic Stainless Steel ◽  
Arc Welding ◽  
Welding Process ◽  
Central Hole ◽  
Steel Sheets ◽  
Metal Arc Welding ◽  
316L Austenitic Stainless Steel ◽  
Better Than

The welding technique used for ASIS 304 and 316L austenitic stainless steel sheets both with a thickness of 3mm is gas tungsten arc welding (TIG) and manual metal arc welding (MMAW). Mechanical properties that were verified include: hardness test and tensile test before welding and after it. The welding process was done on two types of specimens: with a central hole and without hole. We concluded that there was a decrease in the properties of tensile for both specimens with central hole, and 316L had tensile characteristics better than 304 when using the technique TIG. As for 304, it had tensile characteristics better than 316L when using the technique MMAW. We also concluded that the existence of central holes had an influence on the hardness characteristics on both types. The hardness increased in 304 but decreased in 316L. The welding process also showed that there was no influence of MMAW on hardness on both specimens. However it showed that there was no influence of TIG on the hardness for 304, but for 316L values increased.

scholarly journals ANALISA VARIASI ARUS PENGELASAN SS 304 MENGGUNAKAN SHIELDED METAL ARC WELDING (SMAW) TERHADAP KEKUATAN MEKANISNYA

Otopro ◽  
2020 ◽  
Vol 16 (1) ◽  
pp. 18
Author(s):  
Nidia Lestari
Keyword(s):  
Stainless Steel ◽  
Austenitic Stainless Steel ◽  
Mechanical Strength ◽  
Arc Welding ◽  
Welding Process ◽  
Welding Current ◽  
Nuclear Industry ◽  
304 Stainless Steel ◽  
Shielded Metal Arc Welding ◽  
Metal Arc Welding

Austenitic stainless steel or commonly known as AISI 304 stainless steel has advantages, including good ductility at relatively low temperatures and high resistance to corrosion. These properties make Austenitic Stainless Steel a candidate material for use in pipe fabrication systems, automotive exhaust gas systems and some equipment related to the chemical and nuclear industry. Therefore, it is necessary to analyze the variation of welding currents on the strength of the welds in the application of Shielded Metal Arc Welding (SMAW) on stainless steel. The electrodes used are E308-16 types with current variations of 90 amperes, 100 amperes and 110 amperes. The results showed that the electric current factor in the SMAW welding process greatly influenced the welding results in terms of its strength. The highest mechanical strength was obtained at welding current of 110 Ampere, with a heat input of 976.067 J / mm, an average mechanical strength of 68.438 kg / mm2 for tensile stress and strain of 47.451% in the tensile test, and an average value of hardness of 225.008 HV for hardness test in weld.

scholarly journals The influence of welding speed conditions of GMAW on mechanical properties of 316L austenitic stainless steel

2018 ◽  
Vol 159 ◽  
pp. 02009
Author(s):  
I.M.W. Ekaputra ◽  
Sudi Mungkasi ◽  
Gunawan Dwi Haryadi ◽  
Rando Tungga Dewa ◽  
Seon-Jin Kim
Keyword(s):  
Mechanical Properties ◽  
Stainless Steel ◽  
Austenitic Stainless Steel ◽  
Welding Speed ◽  
Gas Metal Arc Welding ◽  
Tensile Tests ◽  
Micro Hardness ◽  
Metal Arc Welding ◽  
316L Austenitic Stainless Steel ◽  
Vickers Micro Hardness

In this study, the influence of welding speed conditions of gas metal arc welding (GMAW) on mechanical properties of 316L austenitic stainless steel (SS) was investigated. The welding speed was applied with three different variations at 175 mm/minute, 190 mm/minute, and 205 mm/minute. The GMAW was equipped by solid electrode wire ER308L with 0.8 mm in diameter. The Vickers micro-hardness and tensile tests were conducted for each GMAW joint, and the results were discussed. It was found that the Vickers micro-hardness showed a dependence on welding speed conditions in weld metal (WM) and heat affected zone (HAZ) areas. A systematic increase in hardness was shown with an increase in welding speed. The ultimate tensile strength and yield strength of GMAW joints were found to decrease systematically with an increase in welding speed. From this investigation, it was found that GMAW joint with the welding speed at 175 mm/minute was suitable to be applied for 316L SS.

A Study of Filler Metal Effecting on Mechanical Properties for Dissimilar Gas Metal Arc Welding (GMAW) for Austenitic Stainless Steel

2013 ◽  
Vol 647 ◽  
pp. 692-696 ◽  
Author(s):  
Kaewkuekool Sittichai ◽  
Laemlaksakul Vanchai ◽  
Rodsung Detnarong
Keyword(s):  
Mechanical Properties ◽  
Stainless Steel ◽  
Austenitic Stainless Steel ◽  
Electric Current ◽  
Arc Welding ◽  
Filler Metal ◽  
Gas Metal Arc Welding ◽  
Aisi 304 ◽  
Metal Arc Welding ◽  
Steel Aisi

The objective of this research was to study the effect of filler metal, which was influenced to mechanical properties welding of Austenitic Stainless Steel AISI 304 on gas metal arc welding (GMAW) process. Factorial design was applied for this study. Factors studied were consisted of filler metal, electric current, and speed of welding at each factor was set at three levels. Results revealed that interaction effect between electric current, and speed was affected to ultimate tensile strength and elongation significantly different at level of .01 and .05, respectively. Finally, main effect of speed factors was affected to yield point significantly different at the level of .05.

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