About Hydrogen Embrittlement
In this section:hic steel | hic resistant steel – grades | hydrogen induced cracking (HIC) | stress orientated (SOHIC)
hydrogen embrittlement | wet h2s corrosion | hic tested steel plate
Essentially, the HIC test actually tests a sample of steel for its susceptibility to hydrogen embrittlement.
Hydrogen embrittlement involves the ingress of hydrogen into a component (e.g. pressure vessel, boiler) – a factor which can cause a variety of issues including cracking and a reduction in load bearing capacity. This, in turn, can cause a catastrophic failure which represents a serious threat to any safe working environment.
Hydrogen can be introduced into steel during processing, in storage and in welding. It is also produced by corrosion reactions such as rusting. Hydrogen embrittlement is more susceptible in titanium and aluminum alloys and high strength steels. In a sour service environment hydrogen contamination is caused by the presence of hydrogen sulphide (h2s) which creates an electrochemically corrosive reaction.
To address the issues surrounding embrittlement, greater emphasis is being placed on steel at the processing stage. Alloys are developed with a higher resistance to hydrogen embrittlement and are HIC tested for hydrogen induced corrosion – all to the very highest testing standards. Controlling the amount of hydrogen that can potentially be picked up in the processing cycle and limiting the possibility for further hydrogen contamination on site, will prolong the life cycle of the component and limit the possibility of cracking and brittle failures.
Masteel offer a variety of HIC tested steel grades from stock. To find out more click here to contact us.
 |
Related articles: (click on a link below to view) | |||
| • HIC Steel Overview | ||||
| • Grades & Equivalents | ||||
| • What is Hydrogen Induced Cracking (HIC)? | ||||
| • What is Stress-Orientated Hydrogen Induced Cracking (SOHIC)? | ||||
| • About Hydrogen Embrittlement | ||||
| • About Wet H2S Corrosion? | ||||
| • Why choose HIC tested steel plate? | ||||
Steel Product Range:
pressure vessel steel | boiler plate | chrome moly steel | clad plates | structural steel | hic steel
wear resistant steel | stainless steel | heat resistant steel | structural steel sections | pipes/tubulars
hot rolled plate | weather resistant steel
"the solution to your steel requirements"
