Thermal simulation is an interesting method to reproduce different regions of the heat-affected zone (HAZ) in specimens with dimensions proper to perform microstructural investigations, corrosion resistance and mechanical tests. In this work, different regions of the HAZ of duplex UNS S32205 and superduplex UNS S32750 …

The super-duplex stainless steel UNS S32750 consists of two main phases, austenite and ferrite, which differ not only by their morphology, physical, and mechanical properties, but also by their deformation behaviour. A heterogenous deformation can be obtained during thermomechanical processing, generating internal stresses and …

Super Duplex UNS S32750 Forging. A479, S32750. Super Duplex UNS S32750 Forgings are dual phase austenitic-ferritic duplex components manufactured from alloy containing chromium, nickel and molybdenum with restricted carbon content and minimum PREN 42. Zeron 100 forgings have high strength, resistance to pitting, stress corrosion cracking, …

The super-duplex stainless steel UNS S32750 consists of two main phases, austenite and ferrite, which differ not only by their morphology, physical, and mechanical …

Dissimilar weldments of UNS S32750 and Monel 400 were tested for their impact toughness and the test toughness results are shown in Table 6. The fracture under toughness test of dissimilar welded samples is shown in Fig. 7. It is observed from the tabulated values that the ERNiCrMo-4 (169 J) and ERNiCrMo-3 (144 J) weldments …

UNS S32750 were studied in the temperature range of 900-1200 and strain rate range of 0.1-10 s-1 by using hot compression tests. Flow stress was modeled by the constitutive equation of hyperbolic sine function. Processing maps for hot working were developed. The results reveal that the flow curves are nearly typical of DRX and DRV at low and high

S32750 is the standard grade of super-duplex stainless steel based on 25% chromium, 7% nickel and significant additions of molybdenum, manganese and nitrogen. As with many of the duplex grades, S32750 also offers high strength and excellent resistance to chloride stress corrosion cracking, while the molybdenum and nitrogen levels enhance the pitting, …

Abstract: Prestrained at 5% and 15% duplex stainless steel UNS S32750 specimens have been subjected to electropulsing treatments with current density of 100 A/mm2 and 200 …

Sandvik SAF 2707 HD is a hyper-duplex steel that is designed to resist corrosion in the most severe chloride containing environments. Sandvik SAF 2707 HD can also serve as an alternative to expensive Ni-based alloys and highly alloyed austenitic stainless steels in a number of applications. Outperform.

S31254, CK3MCuN Super Austenitic. This material is a superaustenitic stainless steel. Its corrosion resistance is higher than the duplex grades because its alloy content is higher. It has a high PREN (pitting resistance equivalency number) for superior resistance to chloride pitting and stress corrosion cracking.

The present paper analyzes UNS S32750 Super-Duplex Stainless Steel hot deformation behavior during processing by upsetting. The objective of this paper is to determine the optimum range of …

The corrosion behavior and passivation mechanism of S32750 super-duplex stainless steel exposed in a simulated marine atmosphere were studied using electrochemical methods, XPS and SEM. Passivation and local corrosion occurred on the metal surface when S32750 SDSS was exposed in the simulated marine atmospheric …

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Super Duplex Stainless Steel UNS S32750 is described as a super duplex stainless steel with a microstructure of 50:50 austenite and ferrite. Keywords: Super Duplex Stainless Steel UNS S32750 / 1.4410 / F53 can be used successfully as an alternative to 300 series stainless steel (such as type 316); standard 22% Cr duplex steel (such as UNS ...

Alloy 32750 is a super duplex stainless steel supplied in the solution annealed condition. As a super duplex stainless steel, it combines the desirable aspects of both austenitic …

The repassivation potentials from PD-PS-PD tests as a function of temperature in chloride solutions at different temperatures were obtained by Martínes et al. [74] for UNS S32750 (AISI 2507 ...

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The materials employed in this study were API X-65steel and UNS S32750 SDSS, both supplied in seamless pipe shapes with an internal diameter of 508 mm (20 in.) and a nominal thickness of 4 mm (0.15 in.).The GTAW process with direct electrode and negative polarity (GTAW–DCEN) was chosen for welding because of its flexibility in field …

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S32750 and S32760 effectively have the same physical and mechanical properties within the limits of measurement. The main discernible difference is in the composition where S32760 contains deliberate controlled additions of copper and tungsten to influence corrosion resistance. Langley Alloys stocks S32750 and S32760 solid bars in sizes from …

Figure 2 illustrates the optical microstructures for UNS S32750 specimens as solution treated at 900-1300 • C. The ferrite gradually increases and the austenite gradually …

All our super-duplex materials are produced by Norsok M-650 Ed.4 and/ or ISO 17782 qualified manufacturers. Super Duplex UNS S32750 is the most common super duplex grade in the market. UNS S32750 is a duplex especially designed for service in aggressive chloride-containing environments. It has very good resistance to localized corrosion and ...

SAF 2507® is a registered trademark for Sandvik. Super Duplex is a Duplex alloy stainless steel developed for high strength, resistance to pitting, stress corrosion cracking, erosion corrosion and corrosion fatigue, crevice corrosion and strong weldability.. Super Duplex Applications. Oil and gas industry equipment, Offshore platforms, heat exchangers, …

NORSOK-approved Super Duplex tubes custom-made for subsea oil and gas instrumentation applications. Greater corrosion resistance allows for lighter tube …

control barrier functions for safe multi-robot navigation. First robustness considerations of control barrier functions have appeared in [29]. Nonsmooth and time-varying control barrier functions have been proposed in [30] and [31], respectively. A similar work by the authors of [30] recently proposed hybrid nonsmooth control barrier functions ...

Studies on the evolution of texture and microstructure in UNS S32750 are still missing. The aim of the present investigation is to achieve insights into microstructural …

The present paper analyzes UNS S32750 Super-Duplex Stainless Steel hot deformation behavior during processing by upsetting. The objective of this paper is to determine the optimum range of deformation temperatures, considering that both austenite and ferrite have different deformation behaviors due to their different morphology, …

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The CPT was determined in a 5.85 wt. % NaCl electrolyte at 700 mV. The CPT was determined as the temperature above a current density of over 100 μA/cm2 for 60 s at a scan rate of 1 °C/min. EIS was conducted from 10-1 Hz to 107 Hz in a 3.5 wt. % NaCl electrolyte (Potential: 230 mV, current density 300 μA/cm2). 3.

The Duplex family of Stainless Steels Consists of the following Grades & Designations: • Lean Duplex SS – lower nickel and no molybdenum – 2101, 2102, 2202, 2304. • Duplex SS – higher nickel and molybdenum - 2205 (UNS S32205), 2003, 2404. • Super Duplex – 25 Chromium and higher nickel and molybdenum "plus" – 2507 (UNS S32750 ...

Super Duplex S32750 Flanges Physical Properties. WNR 1.4410 Super Duplex Steel Weld Neck Flanges have excellent physical properties, including high tensile strength, endurance, and toughness. They are also resistant to fatigue and erosion, making them perfect for use in high-stress applications. Properties. Metric. Imperial. Density. 7.8 …

Table 4 Experimental austenite volume fractions (%) at different zones of FZ and BM as a function of the annealing temperature. Full size table. ... Even if a nickel-rich filler metal is used, the phase balance of UNS S32750 is upset during welding as a consequence of the rapid cooling involved in SAW: the austenite amount decreases if …

Super Duplex Alloy UNS S32750 (F53 / 1.4410 / Alloy 32750 / Alloy 2507) has excellent corrosion resistance to a wide variety of media, with outstanding resistance to pitting and …