• Martensitic Stainless

    A790/A790M-03. Standard specification for seamless and welded ferritic/ austenitic stainless steel pipe. A815/A815M-01a. Standard specification for wrought ferritic, ferritic/ austenitic, and martensitic stainless steel piping fittings. 01.02 Ferrous Castings, Ferroalloys. A47/A47M-99. Standard specification for ferritic malleable iron castings.

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  • Austenitic-Ferritic Duplex Stainless Steel Casting Product

    Casting Metals: Austenitic-Ferritic Duplex Stainless Steel Typical Grade of DSS: 2205 (EN 1.4462), 2507 Casting Manufacturing: Investment Casting (Silica Sol Lost Wax …

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  • Duplex Alloy Castings | Peninsula Alloy Inc | Global Service

    Duplex Alloy castings include Austenitic-Ferritic Stainless, Corrosion Resistant Duplexes and Pressure Containment Alloys for any casting project. Below are grade, ASTM and …

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  • Effect of Microstructural Characteristics on Mechanical …

    Materials properties of γ (austenite), α (ferrite), and γ-α duplex stainless steels were experimentally examined using samples with different grain sizes (8 to 1000 µm) and different ratios of the γ to α phase (γ proportion: 35 to 78 pct). The mechanical properties (hardness and tensile strength) of the duplex stainless steel were about 1.5 …

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  • Duplex Steels: Part I: Genesis, Formation, Structure

    The ferritic–austenitic duplex steels are equipped with a mechanical–technological combination of properties, which is advantageous compared …

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  • Austenitic

    Austenitic - ferritic steel casting materials JUNKERALLOY Nickel-based alloys Heatproof steel casting materials

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  • Solidification Cracking Susceptibility of Stainless Steels: …

    The susceptibility of austenitic, ferritic, and duplex stain-less steels to solidification cracking was evaluated by the new Transverse Motion Weldability (TMW) test. The focus was on austenitic stainless steels. 304L and 316L were least susceptible, 321 was significantly more susceptible, and 310 was much more susceptible. However, some 321

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  • Ferrite Measurement in Austenitic and Duplex Stainless Steel …

    @article{osti_14577, title = {Ferrite Measurement in Austenitic and Duplex Stainless Steel Castings - Final Report}, author = {Lundin, C D and Zhou, G and Ruprecht, W}, abstractNote = {The ability to determine ferrite rapidly, accurately and directly on a finished casting, in the solution annealed condition, can enhance the acceptance, save …

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  • Special Issue "Phase Transformations and Structure/Property …

    During the 1930s, in the kingdom of stainless steels, austenitic–ferritic (γ/δ) duplex steels were, inadvertently, created in France. For more than 80 years, these steels have not stopped acquiring titles of nobility in various industrial fields such as transport and chemical industries and have to date been the subject of extensive ...

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  • ASTM standards for steel castings and forgings

    A217. Specification for Steel Castings, Martensitic Stainless and Alloy, for Pressure- Containing Parts, Suitable for High-Temperature Service. A247. Test Method for Evaluating the Microstructure of Graphite in Iron Castings. A278. Specification for Gray Iron Castings for Pressure-Containing Parts for Temperatures up to 650°F (350°C) A297.

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  • Overview of Intermetallic Sigma ( 𝜎 ) Phase Precipitation

    This Section introduces the morphologies of the 𝜎 phase in austenitic, ferritic, and duplex stainless steels. 2.3.1. Austenitic Stainless Steels. Figure 5(a) shows the as-casting microstructure of the 𝜎 phase in AISI 309 LSi stainless steel, and then the 𝜎 phase precipitating in dendrite 𝛿-ferrite .

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  • Extrusion plant | OTTO JUNKER

    Perpetual cost reductions and the simultaneous expansion of automation and process control capabilities have evolved into essential tasks in innovative plant development. OTTO JUNKER provides advanced solutions for important extrusion plant processes, making your investments economically successful and environ-mentally compatible.

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  • High-grade steel foundry / mechanical treatment | OTTO JUNKER

    Should you have any questions or do you need any additional information please contact us. Sales. OTTO JUNKER CM GmbH. [email protected]. +49 2473 601-155. +49 2473 601-611. Jaegerhausstr. 22.

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  • Ferrite Measurement in Austenitic and Duplex Stainless Steel …

    The objective of the program is to determine the suitability of ASTM A923 Standard Test methods for Detecting Detrimental Intermetallic Phase in Wrought Duplex …

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  • Duplex Stainless Steels

    Duplex stainless steels are becoming more common. They are being offered by all the major stainless steel mills for a number of reasons: Higher strength leading to weight saving. Greater corrosion resistance particularly to stress corrosion cracking. Better price stability. Lower price. There is a conference on the subject of duplex every 2-3 ...

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  • Austenitic-ferritic stainless steels: A state-of-the-art review

    Austenitic-ferritic stainless steels, more commonly known as duplex stainless steels, or DSS for short, consist of two basic phases. One is austenite, A, and the other is ferrite, F, present in about equal amounts (but not less than 30% each). The two phases owe their corrosion resistance to the high chromium content. Compared to austenitic stainless …

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  • Austenitic-Ferritic (Duplex) Casting Materials

    PREN-value < 40: duplex-alloy PREN-value > 40: superduplex-alloy **) W (tungsten) = 0.5 - 1.0 % Application area: corrosion resistant, hight strength. Small abstract of all cast …

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  • FERRINOX 255 | Alloy Digest | ASM Digital Library

    Abstract. Ferrinox 255 is categorized as a super duplex (austenitic/ferritic) stainless steel. This high-performance alloy combines high mechanical strengths (typically up to 600 MPa yield strength) and good ductility with outstanding corrosion resistance to marine environments and a wide, diverse range of industrial media. This datasheet …

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  • Foundry | OTTO JUNKER

    Austenitic - ferritic steel casting materials ... OTTO JUNKER GmbH Jaegerhausstr. 22 52152 Simmerath-Lammersdorf GERMANY +49 2473 601-0 Industrial furnaces Jaegerhausstr. 22 024736010 +49 2473 601-600 ...

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  • ASTM A995/A995M-20

    Full Description. 1.1 This specification covers austenitic-ferritic (duplex) stainless steel castings for valves, flanges, fittings, and other pressure-containing parts. 1.2 The duplex stainless steels offer a combination of enhanced mechanical properties and corrosion resistance when properly balanced in composition and properly heat treated.

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  • Hot cracking in duplex stainless steel weldments — a review

    A highly ferritic weld may have decreased resistance to pitting [6,7,8,9] and hydrogen cracking [10,11,12], whereas an excessively austenitic weld could have lower resistance to SCC [13, 14].The formation of austenite is also dependent on the cooling time and the amount increases at lower cooling rates [15, 16].In multipass welding of duplex …

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  • Mechanisms of short crack propagation in austenitic–ferritic duplex

    An interesting material in this respect is the duplex steel 1.4462, because it consists of two different phases – face centered cubic (fcc) austenite and body centered cubic (bcc) ferrite – and shows a phase dependent behavior of short cracks. Düber et al. [5] observed that in the ferritic phase, short cracks propagate along individual ...

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  • Stainless steel types | Ferritic, Martensitic, Duplex, Austenitic …

    AUSTENITIC: Austenitic stainless steel series 200 and 300 have become a staple of a wide range of industries, such as chemicals, pharmaceuticals, food and drink, textiles, …

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  • 300 series vs. ferritic stainless steel – Which one should I …

    4. Formability, ductility and yield strength. Ferritic stainless steels are produced primarily in sheet thicknesses. Their formability is generally quite good, a lot like carbon steel, but not as good as the 300 series austenitic alloys. Ferritic alloys can be cold worked only to a moderate level, but are normally used in the fully annealed condition.

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  • Stainless Steel | Metal Casting Resources

    Duplex stainless steels are the newest stainless steel type. They contain more chromium (19–32%) and molybdenum (up to 5%) than austenitic stainless steels, but significantly less nickel. Duplex stainless steels are sometimes referred to as austenitic-ferritic because they have a hybrid ferritic and austenitic crystalline structure.

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  • cd4mcun equivalent material

    Austenitic-Ferritic (Duplex) Casting Materials. CD4MCuN - - 1B - CD4MCuN UNS J93372 ≥ 485 ≥ 690 ≥ 16 - 300 CE8MN - - 2A - CE8MN UNS J93345 ≥ 450 ≥ 655 ≥ 25 - 300 1) The use at low temperatures is possible for most of the materials if careful metallurgy is applied. Delivery condition: solution annealed, quenched. ...

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  • Duplex Stainless Steel | Sand Casting, Investment Casting …

    CD4MCu-Duplex Stainless Steel-Casting Material. Duplex Stainless Steel CD4MCu (UNS J93370) in ASMT A351 and ASTM A890. China Castings Duplex Stainless, Material. ... ASTM A995/A995M for Castings, Austenitic-Ferritic (Duplex) Stainless Steel. China Castings Related Standard. July 26, 2010.

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  • Casting – British Stainless Steel Association

    BS 3146-2 is the material standard for stainless steel and some nickel based alloy castings, to be made by the investment (or lost wax) process. Martensitic, precipitation hardening, austenitic austenitic-ferritic (duplex) grades are included. The chemical composition of the stainless steel and some nickel based alloys in the standard are listed.

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  • Duplex Stainless Steel

    These steel are normally named Duplex stainless steel pipe due to the two phases present in the microstructure. Typically twice the yield of austenitic stainless steel. Minimum Specified Ultimate Tensile Strength typically 680 to 750N/mm2 (98.6 to 108ksi). Elongation typically > 25%. Superior corrosion resistance than a 316.

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  • URANUS 45N | Alloy Digest | ASM Digital Library

    Uranus 45N (UR 45N) is a nitrogen alloyed (>0.15%) austenitic-ferritic stainless steel (2205 type) with improved structural stability and high general, localized, and stress-corrosion resistance properties. The Pitting Resistance Equivalent Number (PREN) is >33. This datasheet provides information on composition, physical properties, elasticity ...

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  • Standard Specification for Castings, Austenitic, Austenitic-Ferritic

    1.1 This specification covers austenitic and austenitic-ferritic (duplex) steel castings for valves, flanges, fittings, and other pressure-containing parts (Note 1). Note 1—Carbon steel castings for pressure-containing parts are covered by Specification A 216/A 216M, and low-alloy steel castings by Specification A 217/A 217M.

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  • ISO 3651-1:1998(en), Determination of resistance to …

    Austenitic and ferritic-austenitic (duplex) stainless steels may be subject to such attack when they are held at a temperature between about 500 °C and 1 000 °C. This heat cycle, which may provoke sensitization to intergranular corrosion, may occur during hot forming (forging, rolling) as the result of incorrect solution treatment or during a ...

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  • Stainless steel types | Ferritic, Martensitic, Duplex, Austenitic …

    DUPLEX: Duplex stainless steel grades offer an excellent combination of strength and corrosion resistance, allowing you to significantly reduce material thickness and cost in a host of applications. The duplex grades contribute to high strength and high resistance to stress corrosion cracking. These grades also have a ferritic-austenitic ...

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  • Stainless Steels

    Duplex stainless steels typically contain 50% austenite and 50% ferrite (Figure 9a-c). The two-phase mixture also leads to a marked refinement in the grain size of both the austenite and ferrite. This, together with the presence of ferrite, makes the material about twice as strong as common austenitic steels.

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