Effect of Welding Using Electrodes With Certain Treatment on Stainless Steel 304 Using SMAW Welding

This paper will discuss about how the influence of welding electrodes which before being used in the welding process is given a certain treatment first. The treatment given to the welding electrode before the welding process is by dipping the welding electrode into the oil and dipping the welding electrode into the coolant. The effect of the welding electrode treatment on the SMAW welding results seen from the tensile strength. The specimen used is stainless steel type 304 with four welding variations. First, welding using Gutwelt type E308 welding electrodes. Second, welding using Nikko Steel type E308 welding electrodes. Third, welding using Nikko Steel type E308 welding electrodes that are oil dipped. Fourth, welding uses Nikko Steel type E308 welding electrodes which are dyed coolant. After tensile testing of the welding results, the results are obtained: welding using Gutwelt type E308 welding electrodes has greater tensile strength compared to using Nikko Steel type E308 welding electrodes. While welding using Nikko Steel type E308 welding electrodes that have been carried out certain treatments, namely by dipped coolant, produce greater tensile strength compared to using the Gutwelt type E308 welding electrodes. However, in welding using Nikko Steel type E308 welding electrodes that are oil dipped, the tensile strength is still lower than using a Gutwelt type E308 welding electrodes.

PENGARUH ASAM NITRAT TERHADAP LAJU KOROSI BAJA TAHAN KARAT AUSTENITIK 304 UNTUK KEPERLUAN KONSTRUKSI

Menara: Jurnal Teknik Sipil ◽

10.21009/jmenara.v1i1.7832 ◽

2006 ◽

Vol 1 (1) ◽

pp. 10

Author(s):

M.O.S Aritonang ◽

Iqbal Fahri

Keyword(s):

Stainless Steel ◽

Nitric Acid ◽

Steel Type ◽

Stainless Steel 304 ◽

Tujuan penelitian ini adalah untuk mengetahui laju korosi austenitik tipe stainless steel 304 attack nitric acid 65% dengan austenitic stainless steel tipe 304 serang nitric acid 85% untuk kepentingan konstruksi. Penelitian ini dilakukan di Balai Penelitian Bahan Kimia Departemen Perindustrian DKI Jakarta. Metodologi yang digunakan dalam penelitian ini adalah eksperimen dengan dua jenis perlakuan. Yaitu; kelompok pertama adalah austenitic stainless steel tipe 304 serangan asam nitrat 65% dan kelompok kedua adalah stainless steel tipe austenitic 304 menyerang asam nitrat 85%. Jumlah semua instrumen yang diuji adalah 10 buah dari dua jenis perawatan. Untuk mengetahui pengaruh korosi terhadap sifat mekanik austenitic stainless steel tipe 304 khususnya kekuatan tarik, dilakukan pengujian kekuatan terhadap dua grup austenitic stanless steel type 304 attack nitric acid. Jadilah sisi, dilaksanakan juga pengujian kekuatan terhadap satu kelompok austenitic stainless steel tipe 304 sebagai kelompok kontrol. Berdasarkan penelitian, temuan menunjukkan bahwa austenitic stainless steel tipe 304 menyerang asam nitrat 65% memiliki laju korosi 3,751 mm / tahun pada rata-rata dan austenitic stainless steel tipe 304 serangan asam nitrat 85% memiliki laju korosi 6,404 mm / tahun pada rata-rata . Data dari penelitian diuji dengan uji rata - rata dua ekor (uji - t), uji satu ekor, ekor kiri dengan alfa = 0,01, dan dari analisis dapat diperoleh thitung = - 11,53, nilainya adalah lebih kecil dari tTable = -2,90 yang H0 di area penolakan. Kualitas austenitik dari baja tahan karat tipe 304 terhadap serangan korosi, diikuti juga oleh kekuatan tarik tarik austenitic stainless steel tipe 304. Sebelum korosi austenitic stainless steel memiliki kekuatan tarik 60.107 kgf / mm2. Setelah korosi dengan asam nitrat 65% kekuatan tarik austenitic stainless steel tipe 304 menjadi 57,329 kgf / mm2. Demikian lagi, setelah korosi dengan asam nitrat daya tarik 85% baja tahan austenitik tipe 304 menjadi 55.349 kgf / mm2.

AK STEEL TYPE 304L

Alloy Digest ◽

10.31399/asm.ad.ss1324 ◽

2020 ◽

Vol 69 (8) ◽

Keyword(s):

Mechanical Properties ◽

Stainless Steel ◽

Corrosion Resistance ◽

Heat Treating ◽

Stress Relief ◽

Carbide Precipitation ◽

Low Carbon ◽

Steel Type ◽

Temperature Performance ◽

Abstract AK Steel Type 304L is a chromium-nickel austenitic stainless steel. It is an extra low-carbon variation of Type 304 with a 0.030% maximum carbon content that eliminates carbide precipitation due to welding. As a result, this alloy can be used in the “as-welded” condition, even in severe corrosive conditions. In many cases it eliminates the necessity of annealing weldments except for applications specifying stress relief. Type 304L has slightly lower mechanical properties than Type 304. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties as well as fatigue. It also includes information on high temperature performance, corrosion resistance as well as forming, heat treating, and joining. Filing Code: SS-1324. Producer or Source: AK Steel Corporation.

AK STEEL TYPE 304

Alloy Digest ◽

10.31399/asm.ad.ss1317 ◽

2020 ◽

Vol 69 (5) ◽

Keyword(s):

Stainless Steel ◽

Carbon Content ◽

Atmospheric Corrosion ◽

Carbide Precipitation ◽

Steel Grade ◽

Good Resistance ◽

Steel Type ◽

Temperature Performance ◽

Type 304 ◽

Lower Carbon

Abstract AK Steel Type 304 is a chromium-nickel austenitic stainless steel. It is a variation of the base 18-8 grade, but with higher chromium and lower carbon content. The lower carbon content minimizes carbide precipitation due to welding and reduces its susceptibility to intergranular corrosion. Type 304 is the most versatile and widely used stainless steel grade. It combines good resistance to atmospheric corrosion and to many chemicals, food, and beverages. It has excellent formability. This datasheet provides information on composition, physical properties, hardness, elasticity, tensile properties as well as fatigue. It also includes information on low and high temperature performance, and corrosion resistance as well as forming and joining. Filing Code: SS-1317. Producer or source: AK Steel Corporation. Originally published April 2020, corrected May 2020.

Quantitative Analysis of Pre-Strain Effect on Mechanical Properties of the Austenitic Stainless Steel

Volume 1: Codes and Standards ◽

10.1115/pvp2014-28361 ◽

2014 ◽

Author(s):

Zhiwei Chen ◽

Caifu Qian ◽

Guoyi Yang ◽

Xiang Li

Keyword(s):

Experimental Data ◽

Mechanical Properties ◽

Tensile Strength ◽

Stainless Steel ◽

Yield Strength ◽

Tensile Testing ◽

Control Mode ◽

Strain Effect ◽

Strain Control

The test of austenitic stainless steel specimens with strain control mode of pre-strain was carried out. The range of pre-strain is 4%, 5%, 6%, 7%, 8%, 9% and 10% on austenitic stainless steel specimens, then tensile testing of these samples was done and their mechanical properties after pre-strain were gotten. The results show that the pre-strain has little effect on tensile strength, and enhances the yield strength more obviously. According to the experimental data, we get a relational expression of S30408 between the value of yield strength and pre-strain. We can obtain several expressions about different kinds of austenitic stainless steel by this way. It is convenient for designers to get the yield strength of austenitic stainless steel after pre-strain by the value of pre-strain and the above expression.

Inhibition Effect of N, N'-Dimethylaminoethanol on the Pitting Corrosion Austenitic Stainless Steel Type 304

Materials Science ◽

10.5755/j01.ms.21.4.8977 ◽

2015 ◽

Vol 21 (4) ◽

Cited By ~ 1

Author(s):

Roland Tolulope LOTO ◽

Cleophas Akintoye LOTO ◽

Patricia Abimbola POPOOLA ◽

Tatiana FEDOTOVA

Keyword(s):

Stainless Steel ◽

Pitting Corrosion ◽

Inhibition Effect ◽

Steel Type ◽

Experimental and Numerical Investigations on Microcoining of Stainless Steel 304

Journal of Manufacturing Science and Engineering ◽

10.1115/1.2953235 ◽

2008 ◽

Vol 130 (4) ◽

Cited By ~ 21

Author(s):

Gap-Yong Kim ◽

Muammer Koç ◽

Jun Ni

Keyword(s):

Grain Size ◽

Stainless Steel ◽

Bulk Material ◽

High Strength ◽

304 Stainless Steel ◽

Feature Size ◽

Stainless Steel 304 ◽

Metallic Parts ◽

Type 304 ◽

Type 304 Stainless Steel

Increasing demands for miniature metallic parts have driven the application of microforming in various industries. Only a limited amount of research is, however, available on the forming of miniature features in high strength materials. This study investigated the forming of microfeatures in Type 304 stainless steel by using the coining process. Experimental work was performed to study the effects of workpiece thickness, preform shape, grain size, and feature size on the formation of features ranging from 320μmto800μm. It was found that certain preform shapes enhance feature formation by allowing a favorable flow of the bulk material. In addition, a flow stress model for Type 304 stainless steel that took into consideration the effects of the grain and feature sizes was developed to accurately model and better understand the coining process. Weakening of the material, as the grain size increased at the miniature scale, was explained by the Hall–Petch relationship and the feature size effect.

Radiation-induced segregation in austenitic stainless steel type 304: Effect of high fraction of twin boundaries

Materials Science and Engineering A ◽

10.1016/j.msea.2011.06.066 ◽

2011 ◽

Vol 528 (25-26) ◽

pp. 7541-7551 ◽

Cited By ~ 9

Author(s):

Parag Ahmedabadi ◽

V. Kain ◽

K. Arora ◽

I. Samajdar ◽

S.C. Sharma ◽

...

Keyword(s):

Stainless Steel ◽

Twin Boundaries ◽

Steel Type ◽

Radiation Induced ◽

High Fraction ◽

Hot Cell Pulsed Laser Welding of Neutron Irradiated Type 304 Stainless Steel With a Maximum Damage Dose of 28 DPA

Volume 1: Codes and Standards ◽

10.1115/pvp2019-93316 ◽

2019 ◽

Author(s):

Paula D. Freyer ◽

Jonathan K. Tatman ◽

Frank A. Garner ◽

Greg J. Frederick ◽

Benjamin J. Sutton

Keyword(s):

Stainless Steel ◽

Heat Input ◽

Welding Process ◽

Pressure Vessels ◽

Department Of Energy ◽

304 Stainless Steel ◽

Feed Speed ◽

Radiation Induced ◽

Type 304 ◽

Type 304 Stainless Steel

Abstract Radiation-induced degradation of reactor pressure vessels and internals is a concern to the aging nuclear fleet and welding solutions will be required if repair of these irradiated components is deemed necessary. However, the weldability of highly irradiated austenitic materials is significantly diminished due to the presence of irradiation induced helium in the material matrix. Helium-induced weld cracking is a complex phenomenon that is related to the concentration of helium, the heat input from the welding process, and stresses generated during cooling of the weld. During conventional high heat input welding methods such as gas tungsten arc welding, helium bubbles can coalesce and grow on base metal grain boundaries within the heat-affected zone which subsequently causes intergranular cracking. The objective of this work was to obtain weldability data by characterizing welds made on highly activated, neutron irradiated Type 304 stainless steel containing both radiation-induced helium and microstructural damage such as void swelling. All irradiated materials welding was performed inside a Westinghouse hot cell utilizing a pulsed Nd:YAG laser with welds made on three rectangular samples of highly activated Type 304 stainless steel. The rectangular samples were cut and milled in-cell from sections previously obtained from two neutron reflector hex blocks. The hex blocks are U.S. Department of Energy owned material and were irradiated for approximately 13 years in the EBR-II sodium cooled fast reactor from 1982 until 1995. The three samples selected for welding have nominal damage doses of approximately 0.4, 11, and 28 dpa with corresponding estimated helium contents of 0.2, 3 and 8 appm helium, respectively. A number of different weld parameter sets were utilized and included variations of travel speed, wire feed speed and lens-to-work distances. The parameter sets allowed for a range of effective weld heat input levels to be compared. Single pass and multiple pass as well as wire fed and autogenous welds were made. This paper presents the results from post-weld evaluations performed on the three welded irradiated samples, focusing on the reduced tendency for cracks to form adjacent to the weld as a function of weld parameters, lens-to-work distance and helium content.