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  • DUPLEX Stainless Steel

    2013-1-11 · What is the "Family" •Lean Duplex SS – lower nickel and no molybdenum – 2101, 2102, 2202, 2304 •Duplex SS – higher nickel and molybdenum - 2205, 2003, 2404 •Super Duplex – 25Chromium and higher nickel and molybdenum "plus" – 2507, 255 and Z100 •Hyper Duplex – More Cr, Ni, Mo and N - 2707

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  • Cast materials - Sulzer

    2021-3-25 · Super duplex steels J0267 4T / P5M (3 ASTM A890 Grade 5A EN 1.4410 1.4469 max. 0.03 24.0-26.0 6.0-8.0 4.0-5.0 0.10-0.30 690 515 18 (250) AHLSTAR, CPE, ZPP, KCE, MCE, CAHR Used for equipment in the chemical and pulp industries. Good resistance to sea water. Ferritic stainless steel J0840 ER (4 ASTM A743 CC50 (Mod) max. 0.25-0.35

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  • Product Bulletin High Alloy Stainless Steels September ...

    2018-12-23 · CD3MWCuN Super Duplex Both wrought and cast acceptable with some restrictions Wrought and cast acceptable with some environmental restrictions Offered only as block‐forged ... called 2205 and is the most widely used duplex stainless steel. It is produced by most stainless steel producers because it is not protected by any patents. It combines ...

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  • F55 / S32760 / 1.4501 Super Duplex Stainless Steel Ex ...

    2018-7-19 · F55 / S32760 / 1.4501 Super Duplex Stainless Steel supplies available Ex-Stock from Intoco steel suppliers. We are also a very large stockholder of hot work tool steels, stainless steels and super-duplex grade in round bar and plate / sheet form.

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  • SAF 2507® super-duplex stainless steel — .

    SAF 2507 ® (UNS S32750) is a super-duplex stainless steel; a high-alloy duplex steel with a PRE value of min. 42*. The grade is characterized by very good chloride corrosion resistance, combined with very high mechanical strength. SAF 2507 ® is particularly suited for use in aggressive environments such as warm chlorinated seawater and acidic, chloride containing media.

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  • Super Duplex Stainless Steel Casting - FD Casting

    We provide a wide range of super duplex stainless steel castings, which are designed to meet our customer's target. Our manufacturing capability of super duplex stainless steel casting weight ranges from 1g to 220kg. The maximum overall size of casting is 1,000mm * 620mm * 380mm. The minimum wall thickness is 0.5mm.

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  • Duplex Stainless Steel | Stainless Foundry & Engineering

    Duplex Stainless Steel Castings These grades offer a combination of higher strengths and good corrosion resistance, especially in sea water applications. These alloys also offer good toughness at lower temperatures and the higher strengths provide erosion resistance.

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  • Cast Duplex Stainless Steels to ASTM A890 – Magsen .

    Cast duplex stainless steels are also referred to as duplex stainless steel castings and duplex alloy steel castings. The duplex stainless steel alloys have a mixed microstructure of austenite and ferrite, the optimal ratio is 50/50, however in actual duplex stainless steel castings the ratio may be 40/60 or 60/40.

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  • UNS S32760 Super Duplex Stainless Steel - West .

    West Yorkshire Steel are suppliers of UNS S32760 super duplex stainless steel round bar, plate and sheet. S32760 super duplex grade has enhanced pitting and crevice corrosion resistance in comparison with the ordinary austenitic or duplex types and is suitable for use in aggressive environments. This is due to the higher additions of chromium ...

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  • Duplex 2507 Stainless Steel - Penn Stainless

    2021-5-11 · Penn Stainless inventory now includes Duplex 2507, which is a super duplex stainless steel with 25% chromium, 4% molybdenum, and 7% nickel. This alloy is designed for applications which require exceptional strength and corrosion resistance; examples include applications in chemical processing, petrochemical, and seawater equipment. The steel has excellent resistance to chloride .

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  • METALLURGICAL EVALUATION OF CAST DUPLEX .

    Qualification Standards for Cast Super Duplex Stainless Steel" provides information on the testing of Super Duplex Stainless Steels to ASTM A923. Volume 4 is the "Guidance Document for the Evaluation of Super Duplex Stainless Steel" and involves the applicability of ASTM A923 to the Cast Super Duplex .

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  • Duplex Stainless Steels – A Simplified Guide – British ...

    Principle of Duplex Stainless Steels. The idea of duplex stainless steels dates back to the 1920s with the first cast being made at Avesta in Sweden in 1930. However, it is only in the last 30 years that duplex steels have begun to "take off" in a significant way.

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  • F55 / S32760 / 1.4501 Super Duplex Stainless Steel Ex ...

    2018-7-19 · F55 / S32760 / 1.4501 Super Duplex Stainless Steel supplies available Ex-Stock from Intoco steel suppliers. We are also a very large stockholder of hot work tool steels, stainless steels and super-duplex grade in round bar and plate / sheet form.

  • Get Price
  • METALLURGICAL EVALUATION OF CAST DUPLEX .

    Qualification Standards for Cast Super Duplex Stainless Steel" provides information on the testing of Super Duplex Stainless Steels to ASTM A923. Volume 4 is the "Guidance Document for the Evaluation of Super Duplex Stainless Steel" and involves the applicability of ASTM A923 to the Cast Super Duplex .

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  • China Super Duplex Stainless Steel Investment Casting ...

    2021-3-30 · Super Duplex Stainless Steel Investment Casting Manufacturers, Factory, Suppliers From China, We are not satisfied with the present achievements but we are trying best to innovate to meet buyer's more personalized needs. No matter where you are from, we are here to wait for your kind request, and welcom to visit our factory. Choose us, you can meet your reliable supplier.

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  • Phase transformations in cast duplex stainless steels

    2020-10-13 · Super y (5/6 Mo) 904 317 316 304 430 t t Super a / y •UR 52 N + • SAP 2507 • ZERON A 100 UNS 31803 UR 45 ! N / SAF 2205 UNS 32304 UR 35 N / SAP 2304 Duplex family Fig. 1. Nominal PREN values for different stainless steels.[l' DSS alloys are widely used for their high corrosion resistance in severe corrosive

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  • METALLURGICAL EVALUATION OF CAST DUPLEX .

    Qualification Standards for Cast Super Duplex Stainless Steel" provides information on the testing of Super Duplex Stainless Steels to ASTM A923. Volume 4 is the "Guidance Document for the Evaluation of Super Duplex Stainless Steel" and involves the applicability of ASTM A923 to the Cast Super Duplex .

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  • Sigma phase morphologies in cast and aged super .

    2009-8-1 · Optical micrographs of the 6A super duplex stainless steel: (a) in the as cast condition, and (b) solution annealed at 1160 °C and water quenched. Fig. 1 (a) shows a microstructure composed of a ferritic matrix in the background, clearly outlined austenite and sigma phase, which nucleated at the δ/γ interfaces and grew in the direction of ...

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  • Duplex Stainless Steel - Part 1 - TWI

    In addition to the improved corrosion resistance compared with the 300 series stainless steels duplex steels also have higher strength. For example, a Type 304 stainless steel has a 0.2% proof strength in the region of 280N/mm 2, a 22%Cr duplex stainless steel a minimum 0.2% proof strength of some 450N/mm 2 and a superduplex grade a minimum of 550N/mm 2.

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  • DUPLEX Stainless Steel

    2013-1-11 · DUPLEX Stainless Steel John Grocki ... 25Cr Super-Duplex 304/316L S32304 S31803 S31500 STRESS CORROSION CRACKING RESISTANCE vs TEMPERATURE and Cl- Mechanical Properties •Duplex Stainless Steels have roughly twice the yield strength of .

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  • SUPER DUPLEX - Alloy Valves

    Alloy SAF 2507 (UNS S32750) is a super duplex stainless steel with 25% chromium, 4% molybdenum, and 7% nickel designed for demanding applications which require exceptional strength and corrosion resistance, such as chemical process, petrochemical, and seawater equipment. The steel has excellent resistance to chloride stress corrosion cracking ...

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  • THE DEVELOPMENT OF QUALIFICATION STANDARDS .

    Qualification Standards for Cast Super Duplex Stainless Steel" provides information on the testing of Super Duplex Stainless Steels to ASTM A923. Volume 4 is the "Guidance Document for the Evaluation of Super Duplex Stainless Steel" and involves the applicability of ASTM A923 to the Cast Super Duplex .

  • Get Price
  • China Super Duplex Stainless Steel Investment Casting ...

    2021-3-30 · Super Duplex Stainless Steel Investment Casting Manufacturers, Factory, Suppliers From China, We are not satisfied with the present achievements but we are trying best to innovate to meet buyer's more personalized needs. No matter where you are from, we are here to wait for your kind request, and welcom to visit our factory. Choose us, you can meet your reliable supplier.

  • Get Price
  • Comparison of Cast Bronze with Cast Duplex Stainless Steel

    2016-7-18 · 316 stainless steel. Research also recommended that the bronze products not be used in polluted waters. The use of duplex and super duplex stainless steels in the marine environment is recommended as these metals with higher levels of molybdenum and chromium, apart from being far stronger than bronze,

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  • SUPER DUPLEX - Alloy Valves

    Looking for a valve in this exotic alloy? Find it in the following configurations: Ball, Butterfly, Cast, Check, Control, Cryogenic, Custom made, Foot, Forged, Gate, Globe, Needle, Plug, and Safety relief, as well as Strainers. Alloy SAF 2507 (UNS S32750) is a super duplex stainless steel with 25% chromium, 4% molybdenum, and 7% nickel designed for demanding applications which require ...

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  • Examples of Duplex Stainless Steels - George Vander Voort

    2013-2-4 · Microstructure of as-cast ASTM A 890-5A duplex stainless steel in the solution annealed condition. Etched with LB1 (100 mL water –20 g NH 4 FHF –0.5g K 2 S 2 O 5). Original at 100X. Austenite is colored and ferrite is unaffected. Because it is as-cast, the are no annealing twins in the austenite. As-Cast ASTM A 890-5A

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  • Examples of Duplex Stainless Steels - George Vander Voort

    2013-2-4 · Microstructure of as-cast ASTM A 890-5A duplex stainless steel in the solution annealed condition. Etched with LB1 (100 mL water –20 g NH 4 FHF –0.5g K 2 S 2 O 5). Original at 100X. Austenite is colored and ferrite is unaffected. Because it is as-cast, the are no annealing twins in the austenite. As-Cast ASTM A 890-5A

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  • Duplex and superduplex steel valve components | .

    Duplex and super duplex stainless steels. Duplex and super duplex alloys are composed of iron and chromium or molybdenum.They also have an amount of austenite stabilisers, such as nickel or nitrogen, to achieve a balance between the ferritic and the austenitic phases.The creep limit is increased by nitrogen, while decreasing the speed of formation of brittle intermetallic compounds.

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  • Ferrite content measurement in super duplex stainless ...

    2018-12-5 · Approaches to determining ferrite fraction (%) and ferrite number (FN) were examined for super duplex stainless steel (SDSS) welds. A reference sample was produced by bead-on-plate gas–tungsten arc welding of a type-2507 SDSS plate. By comparing different etchants and measurement practices, it was realized that etching with modified Beraha followed by computerized image analysis .

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  • Phase transformations in cast duplex stainless steels

    2020-10-13 · Super y (5/6 Mo) 904 317 316 304 430 t t Super a / y •UR 52 N + • SAP 2507 • ZERON A 100 UNS 31803 UR 45 ! N / SAF 2205 UNS 32304 UR 35 N / SAP 2304 Duplex family Fig. 1. Nominal PREN values for different stainless steels.[l' DSS alloys are widely used for their high corrosion resistance in severe corrosive

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