UNLIMITED FREE
ACCESS TO THE WORLD'S BEST IDEAS

SUBMIT
Already a GlobalSpec user? Log in.

This is embarrasing...

An error occurred while processing the form. Please try again in a few minutes.

Customize Your GlobalSpec Experience

Select Your Free Newsletters

Industry Newsletters

Select Your Free Product Alerts

Finish!
Privacy Policy

This is embarrasing...

An error occurred while processing the form. Please try again in a few minutes.

New! AI Engineering Assistant 
- Trained on our vast library of engineering resources.

ISO TR 20491

Fasteners — Fundamentals of hydrogen embrittlement in steel fasteners

active, Most Current
Buy Now
Organization: ISO
Publication Date: 1 February 2019
Status: active
Page Count: 30
ICS Code (Fasteners in general): 21.060.01
scope:

This document presents the latest knowledge related to hydrogen embrittlement, translated into know-how in a manner that is complete yet simple, and directly applicable to steel fasteners.

Document History

ISO TR 20491
February 1, 2019
Fasteners — Fundamentals of hydrogen embrittlement in steel fasteners
This document presents the latest knowledge related to hydrogen embrittlement, translated into know-how in a manner that is complete yet simple, and directly applicable to steel fasteners.

References

This document references:
ISO 4042 - Fasteners - Electroplated coating systems
Published by ISO on August 1, 2018
A description is not available for this item.
This document references:
NASM1312-5 - FASTENER TEST METHODS METHOD 5 STRESS DURABILITY
Published by AIA/NAS on October 31, 2012
Applicability This method outlines a standard procedure for testing the stress durability of externally threaded fasteners. This procedure applies to all types of externally threaded fasteners which...
This document references:
ASTM A354 - Standard Specification for Quenched and Tempered Alloy Steel Bolts, Studs, and Other Externally Threaded Fasteners
Published by ASTM on May 1, 2017
This specification2 covers the chemical and mechanical requirements of quenched and tempered alloy steel bolts, studs, and other externally threaded fasteners 4 in. and under in diameter for...
This document references:
ASTM F1624 - Standard Test Method for Measurement of Hydrogen Embrittlement Threshold in Steel by the Incremental Step Loading Technique
Published by ASTM on August 1, 2012
This test method establishes a procedure to measure the susceptibility of steel to a time-delayed failure such as that caused by hydrogen. It does so by measuring the threshold for the onset of...
This document references:
ASTM F1940 - Standard Test Method for Process Control Verification to Prevent Hydrogen Embrittlement in Plated or Coated Fasteners
Published by ASTM on September 1, 2007
This test method covers a procedure to prevent, to the extent possible, internal hydrogen embrittlement (IHE) of fasteners by monitoring the plating or coating process, such as those described in...
This document references:
ASTM F1941/F1941M - Standard Specification for Electrodeposited Coatings on Mechanical Fasteners, Inch and Metric
Published by ASTM on December 1, 2016
This specification covers application, performance and dimensional requirements for electrodeposited coatings on threaded fasteners with unified inch and metric screw threads, but it may also be...
This document references:
ISO 4042 - Fasteners - Electroplated coating systems
Published by ISO on August 1, 2018
A description is not available for this item.
This document is referenced by:
B633 - Standard Specification for Electrodeposited Coatings of Zinc on Iron and Steel
January 1, 2023
This specification covers material and process requirements for electrodeposited zinc coatings applied to iron or steel articles to protect them from corrosion. This specification is not intended to...
This document is referenced by:
ISO 10642 - Fasteners — Hexagon socket countersunk head screws with reduced loadability
Published by ISO on September 1, 2019
This document specifies the characteristics of hexagon socket countersunk head screws with reduced loadability due to head design, in steel and stainless steel, with metric coarse pitch threads M2 to...
This document is referenced by:
EN ISO 10642 - Fasteners - Hexagon socket countersunk head screws with reduced loadability
Published by CEN on October 1, 2019
This document specifies the characteristics of hexagon socket countersunk head screws with reduced loadability due to head design, in steel and stainless steel, with metric coarse pitch threads M2 to...
This document is referenced by:
API TR 21TR1 - Materials Selection for Bolting
Published by API on August 1, 2019
This document provides guidance for the selection of materials and manufacturing processes for low-alloy steel bolting manufactured in accordance with API Specification 20E and nickel-based and...
View Less
View All
Advertisement