Menu
Search
Filters
Close
Menu

Save 20% on select titles with code HIDDEN24 - Shop The Sale Now

Corrosion Properties Of UNS S83071, Super Duplex Stainless Steel With High Acid Corrosion Resistance

Corrosion Properties Of UNS S83071, Super Duplex Stainless Steel With High Acid Corrosion Resistance
Available for download

Austenitic-ferritic stainless steels, commonly known as duplex stainless steels (DSSs), are a group of materials typically consisting of equal amounts austenite and ferrite. DSSs are well-known materials in chemical industry and are often a cost-effective alternative as they combine high mechanical strength and fatigue resistance with good corrosion properties. Contributing to the cost-effectiveness is the low nickel content compared to austenitic stainless steels. Advantages with DSSs are high chloride stress corrosion cracking resistance (SCC), where austenitic steels with moderate nickel content are inherently more sensitive. In combinations with carbon steel it can be a benefit to use DSSs since carbon steel and DSSs have matching thermal expansion. 

Product Number: 51322-17925-SG
Author: Oscar Öhlin, Daniel Gullberg
Publication Date: 2022
Industries: Corrosion Monitoring and Control , Coatings and Linings , Coatings
$0.00
$20.00
$20.00

Super and hyper duplex stainless steels (DSSs) are well-known materials in chemical industry. DSSs are characterized by excellent chloride stress corrosion resistance, very high mechanical strength, excellent resistance to pitting and crevice corrosion. The duplex structure also gives design advantages compared to austenitic stainless steels since the thermal expansion matches carbon steels. 

However, DSSs are often optimized for chloride resistance, and therefore the performance in acid environments can be a limitation. 

The recently developed UNS S83071 has been optimized for general corrosion resistance, which gives benefits where traditional super duplex grades suffer from high corrosion rates due to general corrosion. The composition is 30Cr-7Ni-3.5Mo-N, and the material is characterized by excellent acid corrosion resistance with the traditional benefits of DSSs, in combination with good structure stability and weldability.

This paper presents the results from general corrosion testing in acid environments and the results from standardized corrosion testing methods. The results show that UNS S83071 has excellent general corrosion resistance as well as excellent resistance to pitting and crevice corrosion, making it suitable to be used in demanding environments, such as acid production plants with or without seawater cooling. 

Super and hyper duplex stainless steels (DSSs) are well-known materials in chemical industry. DSSs are characterized by excellent chloride stress corrosion resistance, very high mechanical strength, excellent resistance to pitting and crevice corrosion. The duplex structure also gives design advantages compared to austenitic stainless steels since the thermal expansion matches carbon steels. 

However, DSSs are often optimized for chloride resistance, and therefore the performance in acid environments can be a limitation. 

The recently developed UNS S83071 has been optimized for general corrosion resistance, which gives benefits where traditional super duplex grades suffer from high corrosion rates due to general corrosion. The composition is 30Cr-7Ni-3.5Mo-N, and the material is characterized by excellent acid corrosion resistance with the traditional benefits of DSSs, in combination with good structure stability and weldability.

This paper presents the results from general corrosion testing in acid environments and the results from standardized corrosion testing methods. The results show that UNS S83071 has excellent general corrosion resistance as well as excellent resistance to pitting and crevice corrosion, making it suitable to be used in demanding environments, such as acid production plants with or without seawater cooling. 

Product tags
Also Purchased
Picture for Corrosion Resistance Evaluation Of Super Duplex Stainless Steel In Supercritical CO2 Saturated Liquid Phase Containing Impurities O2 Or SO2
Available for download

Corrosion Resistance Evaluation Of Super Duplex Stainless Steel In Supercritical CO2 Saturated Liquid Phase Containing Impurities O2 Or SO2

Product Number: 51322-17602-SG
Author: Daisuke Matsuo, Masayuki Sagara, Yuji Arai, Hisashi Amaya, Kyohei Kanki
Publication Date: 2022
$20.00

Carbon capture, utilization and storage (CCUS) is one of the key technologies to achieve the net-zero emission. One of the CCUS method is CO2 injection to depleted oil and gas wells or aquifers and storage (CCS). The CO2 emitted from fossil fuel-based powers and industrial plants are captured and transported to the injection point by ships or pipe line. Following that, the dense phase or supercritical phase CO2 will be injected to depleted oil and gas wells or aquifers through oil country tubular goods, for examples, seamless pipe.
Picture for Failure Cases Of Super Duplex Stainless Steel Pump Components
Available for download

Failure Cases Of Super Duplex Stainless Steel Pump Components

Product Number: 51322-17689-SG
Author: Janardhan Rao Saithala, Amjad Kharusi, Mohammed Ghafri, Ossama Mohammed, Abdul Majeed, Manish Kulkarni, Talal Nabhani
Publication Date: 2022
$20.00

The application of corrosion resistance alloys such as 25% Cr super duplex stainless steel (25Cr SDSS) has expanded in the oil & gas industry recently as new technologies made it feasible for Oil and Gas operators to invest in high sour and corrosive fields. 25Cr SDSS material is often used in critical applications such as piping, rotating equipment, coolers, and instrument components etc. SDSS materials are well known for the 50/50 austenite (γ) and ferrite (α) microstructure which provides the combination of corrosion resistance and high-performance mechanical properties. 
Picture for Corrosion Risk Prediction Based On Offshore Pipeline Service Database And Machine Learning
Available for download

Corrosion Risk Prediction Based On Offshore Pipeline Service Database And Machine Learning

Product Number: 51322-17711-SG
Author: Zhihao Qu, Xiaoqi Yue, Yi Li, Xiaqiao Li, Lihua Hu, Yue Ren, Yao Lv, Lei Zhang
Publication Date: 2022
$20.00

Pipelines have been the main transportation pattern of oil and gas because of their safety and economy, which are considered as the lifeline of offshore oil and gas transportation. With the booming development of offshore oil industry, the frequency of pipeline leakage is also increasing. Corrosion is one of the important factors due to some characteristics such as operating environment, service life and transportation medium, etc., which damages the integrity of the pipeline and damage the normal operation of pipelines. Furthermore, leakage accidents caused by pipeline corrosion have occurred all over the world, accounting for 70~90% of total accidents, which has caused huge economy losses and catastrophic environmental damage.
Categories
Industry
Recently viewed
Popular tags
View all

Association for Materials Protection and Performance

© AMPP All Rights Reserved.
Membership Terms of Content Use
Contact Customer Support