AMPP Store - Products tagged with 'welding'

Available for download

Effect of Shielding and Backing Gases on Mechanical and Corrosion Properties of Alloy N08935 Welds

Product Number: 51324-20854-SG

Author: Deepjyoti Mukherjee; Conrad Liebsch; Thomas Hündgen; Björn Helmersson; Ravi Vishnu

Publication Date: 2024

$40.00

The newly developed super-austenitic alloy, N08935, combines the best features of a high performance austenitic stainless steel and Ni-based alloys. The alloy has a nickel content of 35 wt.%, which is relatively higher than the usual austenitic steels but lower than conventional Ni-base alloys. With a high resistance to localized and uniform corrosion, it is a good alternative when standard highly alloyed austenitic 6Mo or super-duplex stainless steels do not suffice, and a cost-efficient alternative is desired to Ni-base alloys such as Alloy 625. Due to an excellent corrosion resistance and high mechanical strength, the potential use of alloy N08935 extends to chemical, petrochemical, Oil & Gas equipment, and acidic environments. However, the true test of the suitability of a material is if the weldments also measure up to the performance standards of the base material. The present study examines this concern. In this work, the GTAW (TIG) method will be used to weld 2 mm thick sheets autogenously and with Ni-based filler metal ERNiCrMo-13. The tests were performed for a combination of different shielding and backing gases with and without additions of nitrogen. The welds were evaluated according to SS-EN ISO 15614-1:2017 and additionally the corrosion properties were evaluated using the ASTM G48 standard method E. The aim of this paper is to compare the different combinations of shielding and backing gases to present proper welding recommendations for alloy N08935.

Available for download

Finite Element Study on a Structural Steel Detail Susceptible to Hot-Dip Galvanizing Crackin

Product Number: 51217-086-SG

Author: Kien Nguyen

Publication Date: 2017

$20.00

Steel structures are often galvanized to ensure durability in harsh environments. However, on occasion, incidents of cracking have occurred in galvanized structures that appear to be induced during the galvanizing process. Such cracking incidences produce a significant cost to the industry, in that repair procedures are often necessary to eliminate any flaws present directly after galvanizing.

Available for download

Important Factors in Pipe Butt Welding of Super Duplex Stainless Steel (SDSS) UNS S32760 Using the GTAW Welding Process

Product Number: MPWT19-14287

Author: Dr. Glenn Byrne

Publication Date: 2019

$0.00

The paper considers best practice to realise the optimum combination of strength, toughness,
corrosion resistance and radiographic integrity in UNS S32760 pipe girth welds made using the
GTAW process.
Aspects of fit up, tacking, root gap are considered. The effect of weld heat input and heat input
control through the thickness of the joint, welding technique, inter pass temperature control and
the use of different combinations of shielding and backing gasses on corrosion resistance of
joints is presented. Current specification, procedure and welder qualification requirements are
discussed, as is the need for supplementary testing, in particular quantitative microstructural
evaluation.

Available for download

NACE SP0292-2024, Installation of Thin Metallic Wallpaper Lining in Air Pollution Control and Other Process Equipment

Product Number: NACE SP0292-2024

$109.00

This standard practice provides technical and quality assurance guidelines for handling and installing nickel alloy, stainless steel, and titanium linings in air pollution control equipment (e.g., FGD systems, ducts, and stacks). The concepts and guidance included in this standard may also be useful in other process industries, but may require modification to meet the requirements of a particular process. This standard is intended to be a basis for preparation of a specification to be agreed on by contracting parties for the installation of wallpaper lining in air pollution control and other process equipment. It is the responsibility of users of this standard to determine the suitability of specific procedures, metals, and alloys for particular applications.

Available for download

New Super-Austenitic Grade Alloy 35Mo (UNS N08935) with Excellent Corrosion Properties for Refinery and Petrochemical Industry

Product Number: MECC23-20125-SG

Author: Johan Salwén; Barinder Ghai

Publication Date: 2023

$20.00

The super-austenitic grade Alloy 35Mo has recently been developed and already been installed in shell-and- tube heat exchangers globally. The grade has shown excellent results in different laboratory tests. However, the grade must also be tested in industrial environments, which will take some time until results can been obtained.

Available for download

SP0387-2019 Metallurgical and Inspection Requirements for Cast Galvanic Anodes for Offshore Applications

Product Number: 21036-SG

ISBN: 1-57590-081-5

Publication Date: 2019

$109.00

Defines minimum physical quality and inspection standards for cast sacrificial anodes for offshore applications.

Available for download

SP0387-HD2014 Metallurgical and Inspection Requirements for Cast Galvanic Anodes for Offshore Applications

Product Number: 21036-HD2014

ISBN: 1-57590-081-5

Publication Date: 2014

$179.00

DOWNLOADABLE HISTORICAL DOCUMENT

Defines minimum physical quality and inspection standards for cast sacrificial anodes for offshore applications.

Available for download

Specially Developed Welding Consumables for Pipeline Welding Applications

Product Number: MPWT19-14364

Author: MPWT19-14364

Publication Date: 2019

$0.00

Apart from the well-tried cellulosic electrodes, in the range from E6010-E9010, there are
also low hydrogen grades of weld consumables, which are used in vertical downhill
position - commonly called as BVD (Basic Vertical Down) electrodes. In addition, the
seamless flux cored wires, are gaining prominence in the welding industry as a better
solution compared to the conventional cellulosic electrodes.
The development of BVD electrodes started because of the desire to use high-strength
TM pipe steels with relatively high toughness (e.g. X80). Cellulosic electrodes could not
meet the requirements for cold crack resistance and high toughness properties of the
weld metal. To a high degree, economical efficiency is determined by the achievable
deposition rate and the possible welding speeds. In comparison to basic vertical-up
electrodes, significant time advantage of 40-50% can be achieved with the use of BVD
electrodes for the fill and cap layers.
Seamless Flux Cored wires for pipeline applications follow a different manufacturing
approach compared to the conventional folded techniques and are much reliable with
consistent performance in terms of weldability and quality. The seamless FCAW wires,
offers a unique and trustworthy solution in terms of arc stability and low defect rates.
These wires are also suitable to be used under sour service applications having been
tested for Hydrogen Induced Cracking (HIC) and Sulfide Stress Cracking applications.

Available for download

Study On Ferrite Measurement Methods For Duplex Stainless Steel, Part 2: Focus On Measurement By Ferrite Scope

Product Number: 51321-16772-SG

Author: Nozomi Satake; Mikihiro Sakata

Publication Date: 2021

$20.00

Available for download

The Validity of Using ASTM A923 Practice for Weld Procedure Qualification of 2507 Duplex SSs

Product Number: 51317--8838-SG

ISBN: 8838 2017 CP

Author: Richard Colwell

Publication Date: 2017

$20.00

There is no confidence in the A923 Test Method C for weld procedure
qualification of 25% Cr DSS on a consistent basis. The ability to obtain corrosion
rates < 10 mdd is not achievable at 40°C for samples in the “as-welded”
condition.

Available for download

Welding Of CRA With Insufficient Purging Gas Impact On Mechanical Properties And Corrosion Resistance

Product Number: 51321-16615-SG

Author: Kristian Eriksen/ Roy Johnsen/ Stian Hauger

Publication Date: 2021

$20.00

Available for download

Welding Procedure Development For A 13Cr-5Ni-2Mo (UNS S41426) Super Martensitic Stainless Steel

Product Number: 51321-16840-SG

Author: Thanh Nam Vu; Karthik Krishnan; John Sisk

Publication Date: 2021

$20.00

Products tagged with 'welding'

Association for Materials Protection and Performance