How to Download ISO/TR 20172 PDF for Free
If you are looking for a way to download ISO/TR 20172 PDF for free, you have come to the right place. In this article, we will explain what ISO/TR 20172 is, why it is important for welding purposes, and how you can find and download it from various sources. Whether you are a welder, a welding engineer, a quality manager, or a student, you will find this article useful and informative.
iso tr 20172 pdf free download
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What is ISO/TR 20172 and why is it important?
ISO/TR 20172 is a technical report that establishes a European grouping system for materials for welding purposes, classified in accordance with the grouping system of ISO/TR 15608. It is also applicable for other purposes, such as heat treatment, forming and non-destructive testing. It covers grouping systems for the following standardized materials:
steel;
aluminium and its alloys;
copper and its alloys;
nickel and nickel alloys;
titanium and titanium alloys;
zirconium and zirconium alloys;
cast irons.
The main objective of ISO/TR 20172 is to provide guidelines for a uniform system for grouping materials for welding purposes, which can reduce the number of welding procedures to be qualified and simplify the selection of welding consumables. It can also help to improve the quality and safety of welded products and structures.
ISO/TR 20172:2021 - Welding Grouping systems for materials European materials
The latest edition of ISO/TR 20172 was published in February 2021, replacing the previous edition from 2009. It was prepared by Technical Committee ISO/TC 44, Welding and allied processes, Subcommittee SC 10, Quality management in the field of welding, in collaboration with the European Committee for Standardization (CEN) Technical Committee CEN/TC 121, Welding and allied processes.
The main changes from the previous edition are as follows:
The scope has been extended to include cast irons.
The number of groups and subgroups has been increased to reflect the latest developments in material standards.
The tables have been updated with new material designations and specifications.
The references have been updated to the latest editions of relevant standards.
Benefits of using ISO/TR 20172 for welding purposes
Using ISO/TR 20172 for welding purposes can bring several benefits, such as:
Reducing the cost and time of welding procedure qualification by allowing multiple different grades to be qualified by a single test weld.
Simplifying the selection of welding consumables by providing a clear correlation between the material groups and the filler material classifications.
Improving the compatibility and performance of welded joints by ensuring that the materials have similar weldability or require similar skills for welding.
Enhancing the quality management and conformity assessment of welded products and structures by providing a common reference for specifications and standards.
How to apply ISO/TR 20172 for different types of materials
To apply ISO/TR 20172 for different types of materials, you need to follow these steps:
Identify the material designation and specification of the parent material and the filler material.
Refer to the tables in ISO/TR 20172 to find the corresponding group or subgroup number for each material.
Determine the compatibility of the materials based on the group or subgroup number. If the materials belong to the same group or subgroup, they are considered to be compatible for welding purposes. If the materials belong to different groups or subgroups, they may require special precautions or additional tests to ensure satisfactory welding results.
Select the appropriate welding procedure and consumables based on the group or subgroup number and the applicable standards and specifications.
For example, if you want to weld a steel plate with the material designation S355J2+N and the specification EN 10025-2:2019, you can refer to Table 1 in ISO/TR 20172:2021 and find that it belongs to Group 1.1. If you want to use a filler material with the classification ISO 14341-A-G 42 3 M21 2Si, you can refer to Table 2 in ISO/TR 20172:2021 and find that it also belongs to Group 1.1. Therefore, you can conclude that the materials are compatible for welding purposes and you can select a suitable welding procedure and consumables based on the relevant standards and specifications.
How to find and download ISO/TR 20172 PDF for free?
If you want to find and download ISO/TR 20172 PDF for free, you have several options to choose from. However, you should be aware that not all sources are reliable or legal, and some may contain outdated or inaccurate information. Therefore, you should always verify the authenticity and validity of the source before using it for any purpose. Here are some of the possible sources of ISO/TR 20172 PDF for free:
Official sources of ISO standards
The most reliable and legal source of ISO standards is the official website of the International Organization for Standardization (ISO), which is www.iso.org. There are two ways to access ISO standards from this website:
ISO Store
The ISO Store is the online shop where you can buy or download ISO standards and other publications. You can search for ISO/TR 20172 by entering its number or title in the search box, or by browsing through the categories. However, most of the ISO standards are not available for free download, and you have to pay a fee to access them. The price of ISO/TR 20172:2021 is CHF 118 (Swiss francs), which is equivalent to about USD 130 (US dollars) as of June 2023.
If you are a member of an ISO member body, such as ANSI (American National Standards Institute) in the USA, BSI (British Standards Institution) in the UK, DIN (Deutsches Institut für Normung) in Germany, AFNOR (Association Française de Normalisation) in France, etc., you may be able to get a discount or a free access to ISO standards through your national organization. You can check the list of ISO members here:
Online Browsing Platform
The Online Browsing Platform (OBP) is a free service that allows you to preview and read online some of the ISO standards and other publications. You can access it from this link:
You can search for ISO/TR 20172 by entering its number or title in the search box, or by browsing through the categories. You will be able to see the table of contents, foreword, introduction, scope, normative references, terms and definitions, and bibliography of ISO/TR 20172:2021. However, you will not be able to see or download the full text of the technical report, as it is protected by copyright.
Alternative sources of ISO standards
If you cannot or do not want to use the official sources of ISO standards, you may try to find and download ISO/TR 20172 PDF for free from some alternative sources. However, as we mentioned before, these sources may not be reliable or legal, and they may contain outdated or inaccurate information. Therefore, use them at your own risk and discretion. Here are some of the possible alternative sources of ISO/TR 20172 PDF for free:
Scribd
Scribd is a digital library that hosts millions of books, documents, audiobooks, podcasts, magazines, etc., that you can read online or download. You can access it from this link:
You can search for ISO/TR 20172 by entering its number or title in the search box, or by browsing through the categories. You may be able to find some versions of ISO/TR 20172 PDF for free download, uploaded by other users or organizations. However, you should be careful about the quality and legality of these documents, as they may not be authorized or updated by ISO. You may also need to create an account or pay a subscription fee to access some of the documents on Scribd.
TWI
TWI is a global leader in materials joining and engineering research and consultancy, providing services and training in welding, inspection, non-destructive testing, materials testing, etc. You can access it from this link:
You can search for ISO/TR 20172 by entering its number or title in the search box, or by browsing through the categories. You may be able to find some versions of ISO/TR 20172 PDF for free download, uploaded by TWI or its affiliates. However, you should be aware that these documents may not be the latest edition or the official version of ISO/TR 20172, and they may have some modifications or annotations by TWI. You may also need to create an account or pay a membership fee to access some of the documents on TWI.
Australian Welding Institute
The Australian Welding Institute (AWI) is a professional association that promotes and supports the welding industry in Australia and New Zealand, providing education, certification, technical information, events, etc. You can access it from this link:
You can search for ISO/TR 20172 by entering its number or title in the search box, or by browsing through the categories. You may be able to find some versions of ISO/TR 20172 PDF for free download, uploaded by AWI or its members. However, you should be aware that these documents may not be the latest edition or the official version of ISO/TR 20172, and they may have some modifications or annotations by AWI. You may also need to create an account or pay a membership fee to access some of the documents on AWI.
Conclusion
In conclusion, ISO/TR 20172 is a technical report that establishes a European grouping system for materials for welding purposes, which can help to reduce the cost and time of welding procedure qualification, simplify the selection of welding consumables, improve the compatibility and performance of welded joints, and enhance the quality management and conformity assessment of welded products and structures. The latest edition of ISO/TR 20172 was published in February 2021, and it covers grouping systems for steel, aluminium and its alloys, copper and its alloys, nickel and nickel alloys, titanium and titanium alloys, zirconium and zirconium alloys, and cast irons.
If you want to find and download ISO/TR 20172 PDF for free, you have several options to choose from. However, you should be aware that not all sources are reliable or legal, and some may contain outdated or inaccurate information. Therefore, you should always verify the authenticity and validity of the source before using it for any purpose. The most reliable and legal source of ISO standards is the official website of ISO (www.iso.org), where you can buy or download ISO standards from the ISO Store or preview them online from the Online Browsing Platform. Alternatively, you may try to find and download ISO/TR 20172 PDF for free from some other sources, such as Scribd, TWI, or AWI, but you should be careful about the quality and legality of these documents.
FAQs
Here are some of the frequently asked questions about ISO/TR 20172:
What is the difference between ISO/TR 20172 and ISO/TR 15608?
ISO/TR 15608 is a technical report that establishes a general grouping system for materials for welding purposes, classified according to their chemical composition. It covers grouping systems for steels; aluminium and its alloys; copper and its alloys; nickel and nickel alloys; titanium and titanium alloys; zirconium and zirconium alloys; magnesium and magnesium alloys; cast irons; cobalt and cobalt alloys; and refractory metals. ISO/TR 20172 is a technical report that establishes a European grouping system for materials for welding purposes, classified in accordance with the grouping system of ISO/TR 15608. It covers grouping systems for the same types of materials as ISO/TR 15608, but with more specific and detailed information on the material designations and specifications.
How can I get a hard copy of ISO/TR 20172?
If you prefer to have a hard copy of ISO/TR 20172, you can order it from the ISO Store or from your national ISO member body. You will have to pay a fee for the printing and shipping costs, which may vary depending on your location and delivery method. Alternatively, you can print the PDF version of ISO/TR 20172 yourself, if you have access to a printer and paper.
How often is ISO/TR 20172 updated?
ISO/TR 20172 is updated periodically to reflect the latest developments in material standards and specifications, as well as the feedback from users and experts. The first edition of ISO/TR 20172 was published in 2006, and it was revised in 2009 and 2021. The next revision is expected to be published in 2026, unless there is a need for an earlier update.
What are some other related ISO standards for welding?
There are many other ISO standards that are related to welding, covering various aspects such as terminology, symbols, processes, equipment, consumables, testing, inspection, quality, safety, etc. Some of the most relevant ones are:
ISO 4063:2020 - Welding and allied processes Nomenclature of processes and reference numbers
ISO 2553:2019 - Welding and allied processes Symbolic representation on drawings Welded joints
ISO 6947:2011 - Welding and allied processes Welding positions
ISO 9606-1:2017 - Qualification testing of welders Fusion welding Part 1: Steels
ISO 15614-1:2017 - Specification and qualification of welding procedures for metallic materials Welding procedure test Part 1: Arc and gas welding of steels and arc welding of nickel and nickel alloys
ISO 14341:2020 - Welding consumables Wire electrodes and weld deposits for gas shielded metal arc welding of non alloy and fine grain steels Classification
ISO 17637:2016 - Non-destructive testing of welds Visual testing of fusion-welded joints
ISO 3834-2:2005 - Quality requirements for fusion welding of metallic materials Part 2: Comprehensive quality requirements
ISO 5817:2014 - Welding Fusion-welded joints in steel, nickel, titanium and their alloys (beam welding excluded) Quality levels for imperfections
ISO 14731:2006 - Welding coordination Tasks and responsibilities
Where can I learn more about welding?
If you want to learn more about welding, you can visit some of the following websites:
The Welding Institute (TWI) -
American Welding Society (AWS) -
The International Institute of Welding (IIW) -
The World Centre for Materials Joining Technology (WCMJ) -
The Fabricator -
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