properties of electron beam welded saf 2205 duplex stainless steel

  • Encore Metals - 2205 Duplex

    Duplex steels have a somewhat different property profile than highly alloyed austenitic stainless steels. The main difference is that duplex grades are relatively easier to machine with high speed steel tools than with cemented carbide tools, compared to austenitic stainless steels with a similar alloy content. Welding: Duplex UNS S31803 ...

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  • Fiber Laser Welding of SAF 2507 Duplex Stainless Steel

    promotion by welding with nitrogen and nickel contained filler wire. Moreover, addition of noble element-nitrogen mixture gas is also improving the austenite phase ratio. In this work, third generation SAF 2507 duplex stainless was welded under autogenous laser and cold wire assisted laser processes.

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  • Effect of Laser Beam Welding Parameters on Microstructure ...

    The used steel is a commercial duplex stainless steel; 2205 with 6.4 mm plate thickness. Its chemical composi-tion and mechanical properties are given in Table 1. Both bead-on-plate and autogenously single pass square butt welds were made using CO2 laser beam welding process. Schematic illustration of laser butt welding joint is shown in Figure ...

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  • SAF 2205 - Wikipedia

    SAF 2205, also known as SAF 2205, is a -owned trademark for a 22Cr duplex (ferritic-austenitic) stainless steel. SAF derives from Austenite Ferrite.The nominal chemical composition of SAF 2205 is 22% chromium, 5% nickel, 3.2% molybdenum and other alloying elements such as nitrogen and manganese. The UNS designation for SAF 2205 is S31803/S32205 and the EN steel .

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  • Welding-duplex stainless must follow precise instructions

    Welding-duplex stainless should be performed only after rigorous study.. Special requirements imposed by this family of materials must be understood.. Practical welding parameters must be completely determined.. Thorough validation of the properties obtained must be accomplished.. Duplex Stainless Steels contain about equal amounts of ferrite and austenite.. A short account was given in my ...

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  • Mechanical Properties of Laser Welded 2205 Duplex ...

    Duplex stainless steel is widely used in the oil, chemical industry and to a lesser extent in the medical industry, because of the high mechanical properties, corrosion resistance and good weldability. In this study, AISI 2205 (22Cr5Ni3Mo) duplex stainless steel samples were joined using the CO 2 laser beam welding method. In order to determine ...

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  • Electron beam welding and surface treatment of duplex ...

    Heat treatment of the joints is necessary, in order to re-establish the ferrite/austenite balance, which is extremely disturbed during the electron beam welding process. For assessing the effectiveness of the electron beam surface treatment, similar weld joints were subjected to conventional furnace heat treatment at 10500C, and used as reference.

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  • Properties of electron beam welded SAF 2205 duplex ...

    Jan 01, 1997· SAF 2205 duplex stainless steel was welded by the electron-beam technique. Optical microscopy, scanning electron microscopy (SEM), tensile, impact and potentiodynamic tests were used to examine the microstructure, mechanical and corrosion properties of the weld materials.

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  • THE INFLUENCE OF POSTHEAT TREATMENT ON FERRITE ...

    conditions at welding duplex stainless steel with electron beam. It was shown, that application of suitable postheat made possible to reduce the ferrite content in weld metal. Keywords: duplex stainless steel, electron beam welding ferrite, austenite, postweld heat treatment 1. Introduction Duplex stainless steels are based on the Fe-Cr-

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  • Properties of electron beam welded SAF 2205 duplex ...

    Joumalof Materials Processing Technology ELSEVIER Journal of Materials Processing Technology 63 (1997) 770-775 Properties of electron beam welded SAF 2205 duplex stainless steel J.S. Ku', N. J. Ho', s.c. Tjongb 'Institute of Materials Science & Engineering, National Sun Yat-Sen University, Kaohsiung, Taiwan bDepartment of Physics and Materials Science, City University of Hong Kong, Tat .

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  • Electron Beam Welding of Duplex Steels with using Heat ...

    Jan 01, 2010· Electron beam welding of duplex stainless steels Electron beam welding uses energy from a high velocity focussed beam of electrons made to collide with the base material. When electrons in a focused beam hit a metal surface, the high energy density instantly vaporizes the material, generating a so-called key hole (Fig. 3).

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  • 2205 Stainless Steel Sheet/bar/pipe - China 2205 Stainless ...

    Features: 2205 is a duplex stainless steel with nearly equal proportions of austenite and ferrite when properly heat treated.This microstructure makes it much more resistant to stress corrosion cracking than stainless steel 304 and 316L. 2205's higher chromium, molybdenum and nitrogen contents give it significantly improved pitting and crevice corrosion resistance in the presence of chlorides.

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  • A process model for the heat-affected zone microstructure ...

    In the present investigation, a process model for electron beam (EB) welding of different grades of duplex stainless steels (i.e. SAF 2205 and 2507) has been developed. A number of attractive features are built into the original finite element code, including (1) a separate module for prediction of the penetration depth and distribution of the heat source into the plate, (2) adaptive ...

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  • Sensitization Phenomena on Aged SAF 2205 Duplex Stainless ...

    Microstructural changes and resulting properties were studied for SAF 2205 (UNS S31803) austeno-ferritic stainless steel (SS) aged between 700°C and 900°C for up to 2 weeks and then water-quenched. Quantitative metallography coupled with x-ray diffraction techniques were adopted to follow ferrite (α) transformation with subsequent formation ...

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  • Effect of Laser Beam Welding Parameters on Microstructure ...

    The used steel is a commercial duplex stainless steel; 2205 with 6.4 mm plate thickness. Its chemical composi-tion and mechanical properties are given in Table 1. Both bead-on-plate and autogenously single pass square butt welds were made using CO2 laser beam welding process. Schematic illustration of laser butt welding joint is shown in Figure ...

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  • Effect of Laser Beam Welding Parameters on Microstructure ...

    The used steel is a commercial duplex stainless steel; 2205 with 6.4 mm plate thickness. Its chemical composi-tion and mechanical properties are given in Table 1. Both bead-on-plate and autogenously single pass square butt welds were made using CO2 laser beam welding process. Schematic illustration of laser butt welding joint is shown in Figure ...

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  • Electron Beam Welding of Duplex Steels with using Heat ...

    Jan 01, 2010· Electron beam welding of duplex stainless steels Electron beam welding uses energy from a high velocity focussed beam of electrons made to collide with the base material. When electrons in a focused beam hit a metal surface, the high energy density instantly vaporizes the material, generating a so-called key hole (Fig. 3).

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  • ASME P-Numbers - welding engineer

    Feb 17, 2015· Ferritic Stainless Steels (Grade 409, 430) 8. Austenitic Stainless Steels Group 1 - Grades 304, 316, 317, 347 Group 2 - Grades 309, 310 Group 3 - High Manganese Grades Group 4 - High Molybdenum Grades. 9A, B, C. Two to four Nickel Steels. 10A, B, C, F. Various low alloy steels. 10H. Duplex and Super Duplex Stainless Steel (Grades 31803, 32750) 10I

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  • Influence of Parameters of Laser Beam Welding on Structure ...

    The effect of welded joint properties on the surface characteristics of laser-welded 2205 duplex stainless steel. Advances in Mechanical Engineering 2018, 10(9), 1687814018797449. 8.

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  • Cooling rate effect on vacuum brazed joint properties for ...

    The influence of cooling rates and fillers on the mechanical properties and corrosion resistance of vacuum brazed joints for two types of 2205 duplex stainless steels was investigated. The amount of a sigma phase precipitated in the duplex stainless steel (DSS) was increased at a slow cooling rate.

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  • Microstructural Characterization of Lean Duplex Stainless ...

    Duplex stainless steels are less sensitive to stress corrosion cracking than austenitic alloys and show magnetic properties. The duplex stainless steels, based on chemical composition, can be sub-divided into standard duplex, super duplex, hyper duplex and lean duplex stainless steel grades. The standard duplex grades contain 22%Cr, 5%Ni and 3 ...

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  • Quantification of sigma-phase evolution in thermally aged ...

    Nov 03, 2015· In this study, the evolution of sigma-phase development in a 2205 duplex steel was studied following thermal ageing in the temperature range 750–850 °C for periods up to 100 h. A suite of materials analysis techniques including combined electron backscatter diffraction–energy-dispersive X-ray imaging and magnetic force microscopy are used to quantify the change in volume fraction of the ...

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  • Materials | Free Full-Text | The Effect of Microstructural ...

    Duplex stainless steels (DSSs) are ferritic–austenitic steels with ferrite (α-Fe) and austenite (γ-Fe) volume fractions of about 1:1, providing an attractive combination of corrosion resistance and mechanical properties suitable for use in aggressive environments [].These properties, in combination with the effects of grain refinement obtained by the biphasic structure and the hardening by ...

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  • Duplex 2205 Stainless Steel - Penn Stainless

    General Properties. Duplex 2205 is a two-phase, ferritic, austenitic 22% chromium, 3% molybdenum, 5 to 6% nickel alloyed stainless steel. It is the most widely used duplex stainless steel grade and is characterized by high yield strength, double that of the standard austenitic stainless steel grades.

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  • Friction stir welding of duplex and superduplex stainless ...

    30 Steel RJ, Sterling CJ. Friction Stir Welding of 2205 Duplex Stainless and 3Cr12 Steels. Proceedings of the 14th International Offshore and Polar Engineering Conference, Toulon, France, p. 67-73, 2004. [ Links ] 31 Wei LY, Nelson TW. Correlation of Microstructures and Process Variables in FSW HSLA-65 Steel. Welding Journal. 2011; 90: 95-s-101-s.

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  • Surface treatment of welded duplex stainless steels by ...

    Jun 12, 2007· The good mechanical properties and the high corrosion resistance are some of the most appreciated characteristics of duplex stainless steels, which are now widely used in several application fields. One limit in the duplex stainless steel diffusion derives from their complex structure: The optimal 50%-50% austenite to ferrite ratio is lost after welding and measures must be taken to improve ...

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  • Selective Laser Melting of Duplex Stainless Steel 2205: E ...

    Pre-alloyed, gas-atomized powder of SAF 2205 (UNS S31803/EN 1.4462) duplex stainless steel, purchased from Osprey Ltd., Neath, UK, was used in this study. The chemical composition of the powder is presented in Table1. Table 1. Chemical composition of the used SAF 2205 powder (wt.%). Element Cr Ni Mo Mn N Si C P S Fe

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  • Magnetic Response of Stainless Steels

    All stainless steels grades with the exception of the austenitic grades are also magnetic – all ferritic grades (eg 430, AtlasCR12, 444, F20S), all duplex grades (eg 2205, 2304, 2101, 2507), all martensitic grades (eg 431, 416, 420, 440C) and all precipitation hardening grades (eg 630/17-4PH).

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  • Laser Beam Welding of 2205 Duplex Stainless Steel with ...

    Laser beam welding with the aid of metal powder additions to the weld pool was carried out to modify the ferrite/austenite (a/g) ratio of the weld metal of 2205 duplex stainless steel (DSS). The a content in the weld metal of DSS welds could be controlled by the .

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  • Effect of an electron beam surface treatment on the ...

    The aim of present investigation is to study the effect of an electron beam surface treatment on 2205 duplex stainless steel joints produced by the same electron beam process. Heat treatment of the joints is necessary, to re-establish the ferrite/austenite balance, which is extremely disturbed during the electron beam welding process.

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  • The Global Leader in Specialty Metals 2205 Duplex ...

    2205 is a duplex (austenitic-ferritic) stainless steel containing about 40 - 50% ferrite in the annealed condition. 2205 has been a practical solution to chloride stress corrosion cracking problems experienced with 304/304L or 316/316L stainless. The high chromium, molybdenum and nitrogen contents provide

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  • Microstructure characterization of a duplex stainless ...

    Duplex stainless steels have higher strength than austenitic stainless steels, higher toughness than ferritic stainless steels and good weldability [1-4]. Furthermore, due to the high Cr content and the presence of alloying elements in the material, the duplex stainless steels present superior corrosion resistance in different environments when ...

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  • Stainless Steel 2205 Hex Bolts | SAF 2205 Hex Bolts

    In addition, Duplex 2205 is the most widely used duplex stainless steel grade on the market. The Duplex 2205 alloy is a nitrogen-enhanced duplex stainless steel alloy. The nitrogen serves to significantly improve the corrosion resistance of the alloy; especially in the welded condition. Stainless Steel Duplex 2205 Hex Bolt Applications. SAF ...

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