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    and corrosion resistance of the 22% Cr high Mn-N duplex stainless steels through lower nickel (below 3%) additions. So, the objective of this study is to develop a new resource-saving, low-Ni, high-Mn-N 22Cr duplex stainless steel and investigate the mi­ crostructure, corrosion and mechanical properties of these designed alloys.

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  • A New Economical Sigma-Free Duplex Stainless Steel 19Cr …

    A new resource-saving duplex stainless steel with composition of 19Cr−6Mn−1. 0Mo−0. 5Ni−0. 5W−0. 5Cu−0. 2N has been developed, and the microstructure, mechanical properties and corrosion properties have been investigated. The results show that the alloy has a balanced ferrite-austenite relation, and the ferrite …

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  • Effect of Cu addition on phase fraction, mechanical …

    In recent years, Cu has been regarded as an important element to improve the corrosion resistance of stainless steels. For duplex stainless steels, especially those obtained by cold rolling and annealing, at present, little is known about the role mechanism of Cu addition.Therefore, on the basis of a new type of Fe–Cr–Mn–Al duplex stainless …

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  • (PDF) Effect of Welding Processes on Microstructure, …

    In the present work, dissimilar butt joints between a low-Ni, medium-Mn austenitic stainless steel, M-Mn SS, and a Ni-Cr austenitic stainless steel, Ni-Cr SS, were processed by utilizing the gas ...

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  • Effect of ageing on precipitation and impact energy of 2101 economical …

    Merello et al. [13] evaluated the pitting corrosion resistance of a family of non-standard low-Ni high-Mn–N duplex stainless steels and determined an exponential equation for estimating the pitting resistance of these steels. In particular, Outokumpu Stainless developed a kind of economical DSS LDX2101 of the typical composition …

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  • Comparative Study on Microstructure and Properties of the Cr–Mn–Ni …

    Abstract The mechanical properties of a new Cr–Mn–Ni steel were studied by static tensile testing, and the stress corrosion cracking (SCC) sensitivity of Cr–Mn–Ni steel and Cr–Ni steel in dry air, NaCl solution, and NaOH + NaCl + H2O composite solution was studied by slow strain rate tensile testing (SSRT). The microstructure and tensile fracture …

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  • Development of high Mn–N duplex stainless steel for …

    A new high Mn–Ni free (duplex stainless steel) DSS containing 18Cr–6Mn–1Mo–0.2N has been developed by examining the effects of manganese on the corrosion and mechanical properties of high Mn SSs containing 18Cr–4 ∼ 11Mn–0 ∼ 2Ni–0 ∼ 1Mo–0.2N. The alloy with 45% ferrite is found to be an optimum alloy with much higher …

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  • A new resource-saving, high manganese and nitrogen super …

    So, the purpose of the present work was to develop a new resource-saving, low-Ni, high-Mn–N super duplex stainless steel and to investigate the effects of the …

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  • Influence of Induction Treatment on the Pitting …

    To investigate the influence of induction treatment on the pitting corrosion resistance of non-standard low-Ni high-Mn-N duplex stainless steel (DSS) coating, the DSS coating with different percentage of Mn and Cr ... Table 1 The nominal chemical composition of the H10Cr17 wires and low-Ni high-Mn-N DSS coating (wt.%) Material C Cr Mn Mo Ni N ...

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  • Investigation on the solution treated behavior of economical …

    Effect of Mn on microstructure, mechanical property and pitting corrosion of 19% Cr economical duplex stainless steels with solution temperatures ranging from 1040 to1220 °C has been investigated.The austenite content increases with more Mn addition, but decreases by increasing solution temperature, which can be inferred by trend of partition …

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  • A new resource-saving, low chromium and low nickel duplex …

    A new family of resource-saving, low Cr and low Ni duplex stainless steels, with compositions of 15Cr–xAl–2Ni–yMn (x = 1.2–2.8, y = 8–12, wt.%) has been …

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  • 200 series stainless steels

    BACKGROUND. The majority of stainless steel is drawn from the austenitic family because these grades are readily formable, weldable and tough. These chromium-nickel (CrNi) and molybdenum-containing grades were traditionally grouped under the 300 series banner. However, driven by the increased price of nickel several years ago, there …

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  • Effect of Mn addition on the precipitation and corrosion …

    The microstructural and corrosion behaviour of Fe-22Cr-1.9Ni-2.3Mo-0.2N-xMn low nickel type duplex stainless steel (DSS) with Mn contents ranging from 4.3 to 9.7 wt% were studied after aging ...

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  • Stainless Steels

    An alternative is use solutes (such as Nb, Ti, V or Ta) which have a greater affinity for carbon than chromium. These are called stabilisedstainless steels, for example, types 321 (Ti stabilised) and 347 (Nb stabilised) austenitic stainless steels.Titanium cannot in general be used to make alloys deposited by arc welding because it readily oxidises; type 347 is …

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  • SAE steel grades

    1 Carbon and alloy steel 2 Stainless steel 3 High-strength low-alloy steel 4 See also 5 References 5.1 Notes ... Type 2304—lean duplex stainless steel. Similar to 2205 for strength but with lower pitting corrosion resistance ... Stainless steel designations[7] SAE designation UNS designation % Cr % Ni % C % Mn % Si % P % S …

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  • New Economical 19Cr Duplex Stainless Steels | SpringerLink

    New economical duplex stainless steels (DSSs) containing 19Cr-6Mn- x Ni-1.0Mo-0.5W-0.5Cu-0.2N ( x = 0.5 to 2.0) were developed, and the microstructure, …

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  • Ferrite Number Prediction to 100 FN in Stainless Steel …

    for the low-FN austenitic stainless steel compositions o f the 300 series, and it corrects a 2 FN bias detected for Type 309 stainless steel. The diagram is more accurate than the Schaeffler diagram for duplex stainless steel alloys and ferrite contents to 100 FN. It is most accurate when the Mn content is restricted to 10

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  • Duplex Stainless Steel

    Duplex stainless steel (DSS) is made up of almost equal parts of austenite and ferrite and is utilized in the automotive, marine, petrochemical, paper, and thermal power generating industries (Nigon et al., 2021 ). Duplex steels have a greater chromium concentration of 20–28%, a lower nickel content of up to 9%, a higher molybdenum content of ...

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  • Evaluation of Pitting Susceptibility and Secondary Phase

    The electrochemical properties of three Ni-free duplex stainless steel alloys, designed in-house, were investigated in chloride (0.2M NaCl) solution at room temperature. The corrosion performance was measured in terms of pitting potential (Epit), passive current density (ip), polarization resistance (Rp) and susceptibility to metastable …

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  • A new resource-saving, low chromium and low nickel duplex stainless

    A new family of economical duplex stainless steels in which N or Mn was substituted for Ni with composition of 22Cr-8.0Mn-xNi-1.0Mo-0.7Cu-0.7W-0.3N (x = 0.5 – 2.0) have been developed by ...

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  • Duplex Stainless Steels

    Cr: Ni: Mo: N: Mn: W: Cu: 2101 LDX: 1.4162/ S32101 Lean: 21.5 1.5: 0.3: ... High nickel austenitic stainless steels; ... At the other end of the scale, there is a restriction on the low temperature use of duplex stainless steels compared to austenitic grades. Unlike austenitic steels duplex steels exhibit a ductile-brittle transition in the ...

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  • Properties of a Transformation-Induced Plasticity-Aided …

    the economical duplex stainless steel with and without the addition of tungsten (W) was prepared ... The combination of austenite-forming elements Mn, N, and Ni instead of Ni was employed ... DSS Cr Ni Mo C N S W Fe Cr19 19.2 3.5 1.8 0.03 0.19 0.01 / …

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  • Effect of Mn/N ratio on microstructure and mechanical …

    The solution treated impact energies of nickel saving DSS with different Mn/N ratio are lower than that of 2205 DSS (3.06 Mn/N ratio), and the solution treated impact energy of 17.80 Mn/N ratio DSS reached 130J, which is higher than that of 3.28 Mn/N ratio and 51.14 high Mn/N ratio tested steels, and corresponds to better toughness.

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  • 22Cr High-Mn-N Low-Ni Economical Duplex Stainless Steels

    22Cr High-Mn-N Low-Ni Economical Duplex Stainless Steels @inproceedings{201222CrHL, title={22Cr High-Mn-N Low-Ni Economical Duplex …

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  • 22Cr High-Mn-N Low-Ni Economical Duplex Stainless Steels

    A new family of economical duplex stainless steels in which N or Mn was substituted for Ni with composition of 22Cr-8.0Mn-xNi-1.0Mo-0.7Cu-0.7W-0.3N (x = 0.5 – …

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  • Stainless Steel Chemical Composition Chart

    The elemental chemical composition of stainless steel is mainly composed of Ferrum (Fe) and Chromium (Cr), other alloy elements in the chemical composition also include Carbon (C), Silicon (Si), Manganese (Mn), Phosphorus (P), Sulfur (S), Nickel (Ni), Molybdenum (Mo), Titanium (Ti), Nitrogen (N), and Cuprum (Cu), etc. Only when the Cr ...

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  • A short review on the role of alloying elements in duplex stainless steels

    Jiang DW, Ge CS, Zhao XJ, Li J, Shi LI, Xiao XS. 22Cr high-Mn-N low-Ni economical duplex stainless steels. J Iron Steel Res Int. 2012;19(2):50. Article CAS Google Scholar ... Yang Y, Ni K. Investigation on the precipitation and corrosion behaviour of 19% Cr economical duplex stainless steel with Mn addition by aging at 800 °C. …

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  • New Insights into the Nondestructive Evaluation of …

    It is well known that the duplex microstructure (ferrite and austenite), generally in a 0.5 ratio in the different duplex and super duplex stainless steel (SDSS), provides a combination of elevated strength and high corrosion resistance (Ref 1,2,3).In these alloys, the high corrosion resistance results from the high Cr content and …

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  • A New Economical Sigma-Free Duplex Stainless Steel 19Cr …

    A new family of resource-saving, high manganese and nitrogen super duplex stainless steels (DSSs), with a composition of 25 wt.%Cr, 2 wt.%Ni, 3 wt.%Mo, 8–12 wt.%Mn, and 0.45–0.55 wt.%N, have ...

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  • Investigation on Aging σ-Phase Precipitation Kinetics …

    and Pitting Corrosion of 22 Pct Cr Economical Duplex Stainless Steel with Mn Addition YINHUI YANG and HAO QIAN The influence of Mn addition on r-phase precipitation kinetics and pitting corrosion of Fe-22Cr-1.9Ni-2.3Mo-0.2N-xMn low nickel type duplex stainless steel was investigated by medium- and high-temperature aging treatments of …

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  • (PDF) TIG and MIG welding of high strength Cr-Mn and Cr-Ni …

    The effect of heat input on the microstructure and mechanical properties of dissimilar welds of direct-quenched ultrahigh strength steel (Optim 960 QC) and duplex stainless steel (UNS S32205) was ...

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  • 22Cr High-Mn-N Low-Ni Economical Duplex Stainless Steels

    Abstract. A new family of economical duplex stainless steels in which N or Mn was substituted for Ni with composition of 22Cr-8. OMn- x Ni-1. OMo-0. 7Cu-0. 7W …

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  • Low Nickel Austenitic Stainless Steels

    The growth rate in production of these low-nickel austenitic grades has been very rapid. The most recent data published by the International Stainless Steel Forum (ISSF) shows that in 2003 as much as 1.5 million tonnes (7.5% of the worlds stainless steel) was of this type. In China the proportion has been estimated to be 25% in 2004.

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  • 22Cr High-Mn-N Low-Ni Economical Duplex Stainless Steels

    Abstract. A new family of economical duplex stainless steels in which N or Mn was substituted for Ni with composition of 22Cr-8.0Mn- x Ni-1.0Mo-0.7Cu-0.7W-0.3N …

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