AMPP Store - Products tagged with 'corrosion tests'

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A Comparative Study Of DLEPR Techniques For Cast Austenitic Stainless Steel

Product Number: 51321-16447-SG

Author: Erin Connelly/Alan Druschitz

Publication Date: 2021

$20.00

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Case Study: Foreign Operator DC Interference On An Existing Pipeline Systems

Product Number: 51322-17587-SG

Author: Jessica Jaskolka

Publication Date: 2022

$20.00

EN Engineering (ENE) completed an AC interference study over 68 miles of an operator’s transmission line. In addition, an ACVG survey of approximately one (1) mile of the pipeline was conducted at the take-off point of the 8” line. As a result of this AC interference study, evidence of elevated AC corrosion risk has not been found on the operator’s pipeline. However, a review of the provided data shows evidence of DC interference due to a nearby foreign rectifier groundbed at the take-off point of the operator’s line.

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Challenges and Insights behind Qualifying a Protective Coating as a Corrosion under Insulation Preventive Coating

Product Number: 51324-20774-SG

Author: Jenny Natalie Manvik; Anders W. B. Skilbred; Sondre Volden; Svein Jacob Kaspersen

Publication Date: 2024

$40.00

Corrosion under insulation (CUI) poses a severe threat to many industries operating at elevated temperatures. One of the most used and most cost-effective methods to mitigate and prevent CUI is by the use of organic coatings. In the last decades the importance of CUI-preventive coatings has increased greatly, and standards for testing these coatings have been published and discussed. At the end of 2018 the ISO 19277 standard was published, forming the first internationally accepted standard for testing and qualifying coating systems for CUI protection. Over the last years an extensive amount of testing has been performed to test and qualify coating systems, but also to provide insight and knowledge about the correlations and differences between various CUI test methods. In this paper, we will present a variety of test results to show how complex it is to qualify coatings to prevent CUI occurring. How do we use the library of results we now have? What does it tell us about real life? Do the various standards give the same conclusions based on the results? Some questions will be answered, and some will be left open.

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

Product Number: 51322-17925-SG

Author: Oscar Öhlin, Daniel Gullberg

Publication Date: 2022

$20.00

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.

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Inhibition of Crevice Corrosion of Ni-Cr-Mo Alloys by Sulfate, Nitrate and Molybdate

Product Number: 51323-18936-SG

Author: Eduardo Sáenz González, Martín A. Rodríguez, Edgar C. Hornus

Publication Date: 2023

$20.00

Nickel base alloys with high chromium and molybdenum contents are very resistant to chloride-induced localized corrosion, even at relatively high temperatures. These alloys include the Ni-Cr-Mo(W) or
“C” family of alloys and the novel Ni-Mo-Cr alloy HYBRID-BC1 (UNS N10362). Alloy 22 (UNS N06022) stands out due to its versatility: chromium and molybdenum contents were selected to optimize its corrosion behavior in oxidizing and reducing conditions. Alloy 625 (UNS N06625) has outstanding thermal ageing resistance and a longer in-service experience. The

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In-Situ Determination Of The Degree Of Sensitization In Austenitic Stainless Steels

Product Number: 51322-17805-SG

Author: Pablo M. Altamirano, Mariano A. Kappes, Martín A. Rodríguez

Publication Date: 2022

$20.00

Austenitic stainless steels are widely used in refineries and petrochemical industries due to their good combination of properties such as workability, mechanical strength and corrosion resistance. However, one of the most important problems they show, and which can lead to failures in service, is the susceptibility to intergranular corrosion and intergranular stress corrosion cracking (IGSCC). When these materials are subjected to temperatures in the range from 500 ºC to 800 °C, the precipitation of chromium-rich carbides occurs preferentially at grain boundaries (GB).

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Nitrite-Based Oxidative Chemical Treatments for Polythionic Acid SCC Mitigation

Product Number: 51324-21145-SG

Author: Nathaniel Sutton; Sean Sears

Publication Date: 2024

$40.00

Reactive metal sulfides introduce safety and reliability risks to hydroprocessing (and other) refinery units during outages. Self-heating or pyrophoric catalysts are a concern, as is stress corrosion cracking of sensitized stainless-steel equipment open to air. A nitrite-based aqueous treatment has been developed and deployed in the field, which addresses both catalyst pyrophoricity and polythionic acid (PTA) SCC of equipment. This paper will present case studies where refineries have relied solely upon the nitrite-based oxidizing solution for PTASCC mitigation. Prior published laboratory testing of the nitrite-based oxidizing treatment used spray-applied iron sulfide (FeS) powder and moist air to produce a PTA environment. One limitation of that approach was that the porous nature of the surface does not adequately simulate a “real” FeS layer formed during years of exposure to high temperature sulfidizing processes. This paper presents additional test results on actively loaded bend specimens of ex-service 347H heater tube extracted from an operating diesel hydrotreater unit.

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The Development of a New Accelerated Corrosion Test Method Using Controlled Relative Humidity

Product Number: 51323-19475-SG

Author: Alexander Lilly, Mirella Vargas, Erica Macha, Dr. Steven Kopitzke, James Dante, Dr. Victor Rodriguez-Santiago

Publication Date: 2023

$20.00

Hexavalent chromium is utilized for the purpose of providing corrosion inhibition on many DoD assets in the form of surface treatments and primers. However, hexavalent chromium is also a known carcinogen and environmental toxin. As a result, processes which involve the application of hexavalent chromium will likely face increased regulation in the future.

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TM0172-2015-SG, Determining Corrosive Properties of Cargoes in Petroleum Product Pipelines

Product Number: 21204-SG

ISBN: 1-57590-118-8

Publication Date: 2015

$109.00

A test to determine the corrosive properties of gasoline and distillate fuels in preparation for transport through a pipeline. Specimen preparation, equipment, and rating the test specimens.

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Understanding The Usefulness of German Test Method TL 8135-002 For Various Steel Alloys

Product Number: 51323-19169-SG

Author: Jonathan Brekan, Nicholas Smith, Kristi Lanzo

Publication Date: 2023

$20.00

The utilization of volatile corrosion inhibitors (VCI) in dry packaging scenarios have become ubiquitous throughout industry for the protection of metal parts during shipping and storage. Initial protective packaging applications of VCIs involved coated paper which was used to wrap or interleave metal parts for transportation and/or storage. This type of wrapping evolved into film packaging where the inhibitors were extruded into film.

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Uniform Corrosion Characterization of UNS N08935

Product Number: 51323-19294-SG

Author: Björn Helmersson, Marie Almén

Publication Date: 2023

$20.00

Highly alloyed stainless steels and Ni-based alloys may be used in a wide range of different chemical environments. By investigating how different alloys are affected by environmental changes – be it chemical composition, temperature, contaminants or others – it is possible to learn more about how material selection can be optimized to improve both cost efficiency and longevity of a system.

UNS N08935 is a highly alloyed austenitic material in the borderland between stainless steels and Ni-based alloys

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Using the German Test Method TL 8135-002 for Multi-Metal Application: Non-Ferrous Alloys

Product Number: 51324-20795-SG

Author: Jonathan Brekan; Kristi Lanzo

Publication Date: 2024

$40.00

Volatile Corrosion Inhibitor (VCI) packaging has wide acceptance in the logistics world as an effective means for the protection of metal fabricated parts during shipping and storage. The utilization of VCI packaging for metals other than steel is still a challenge. Customers are reliant on packaging suppliers to provide them with a technical solution to their unique parts yet there are no standard test methods to prove that their offering is going to work for their alloy or part. This paper discusses the application of the well-understood, TL8135-002 Vapor Inhibiting Ability (VIA) test on a variety of non-steel specimens, including copper, brass, zinc, and aluminum.

Products tagged with 'corrosion tests'

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