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  1. Products
  2. Heavy-plate products
  3. Sour-gas-resistant steels

Sour-gas-resistant steels

Resistance to corrosive fluids

Dillinger's sour-gas-resistant steels convince users with their high cleanness and their homogenous structure – the most important preconditions for the prevention of hydrogen-induced cracking (HIC) in pipelines and pressure vessels.

 

The Dillinger range for your needs:

  • Dillinger has broadly based know-how and many years of experience in the production of sour-gas-resistant steels.
  • Sour-gas resistance is verified in our own laboratory.
  • Sour-gas-resistant plate is produced in yield-strength classes up to 485 MPa, e.g. X70MS as per API Spec 5L, for the line pipe industry. Large plate thicknesses can be produced, and high degrees of cold forming achieved in pipe forming, depending on the specific requirement profile.
  • Dillinger supplies its DICREST and DI-TANK sour-gas-resistant proprietary steels with various levels of HIC-resistance, and in large plate thicknesses  and high item weights, for pressure-vessel engineering purposes. DICREST and DI-TANK meet the requirements for standardised pressure-vessel steels specified in the ASTM/ASME and EN 10028 standards.

 

Useful information on sour-gas-resistant steels:

The occurrence of hydrogen-induced cracking (HIC) when steels are used in so-called sour-gas service is the result of an electrochemical corrosion reaction between an acidic fluid and the surface of the steel. Atomic hydrogen is evolved from hydrogen sulphide (H2S) in an acidic and moist environment and recombines to form molecular hydrogen (H2) at lattice defects and interfaces, such as non-metallic inclusions, segregations or micropores, for example. This hydrogen can then cause cracking in the material. Sour-gas-resistant steels have a high cleanness and a homogenous microstructure and thus provide fewer points of attack for the hydrogen. This is made possible by the use of specific processing routes, in combination with carefully harmonised quality-assurance provisions.

Applications

Pressure Vessels & Boilers

Large Diameter Pipes

Proprietary steels

DI-TANK

DICREST

DIROS

Feasibility

Product finder and feasibility check (E-Service)

Contact

 Philipp Ludwig
Philipp Ludwig

Head of Sales Department, Energy Transmission & Processing

Tel.: +49 6831 472472
Fax: +49 6831 47992685
E-Mail

Dillinger

Contact

 Jörg Maffert
Jörg Maffert

Head of Marketing &Technical Support, Energy Transmission & Processing, Protection Steel

Tel.: +49 6831 473612
Fax: +49 6831 473089
E-Mail

Dillinger

Innovative top-quality steel products, total orientation around our customers' needs and unceasing technological development in close cooperation with our partners form the basis of our success - as they have for more than 333 years.

© 2016 Dillinger All rights reserved.

Contact

AG der Dillinger Hüttenwerke
Werkstraße 1
66763 Dillingen/Saar

Tel.: +49 6831 47 0
Fax: +49 6831 47 2212
E-Mail: info@dillinger.biz

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Our newsletter news@dillinger informs you about interesting news and developments at Dillinger – the company, it’s products, examples of steel applications, processing instructions, etc.

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Heavy-plate products
  • Non-alloy structural steels
  • Normalised fine-grained structural steels
  • Thermomechanically rolled fine-grained steels
  • High-strength quenched & tempered fine-grained steels
  • High-temperature steels
  • Cryogenic steels
  • Weathering-resistant steels
  • Case-hardening & quenching & tempering steels
  • Security steels
  • Tool & mould steels
  • Wear-resistant steels
  • Sour-gas-resistant steels
  • Offshore steels
  • Linepipe steels
Applications
  • Steel Construction
  • Hydropower Engineering
  • Pressure Vessels
  • Earthmoving Machinery & Mining
  • Mechanical Engineering
  • Offshore Oil & Gas
  • Large Diameter Pipes
  • Shipbuilding & Jackup
  • Plastics and Concrete Moulds
  • Wind Power
  • Protection
  • Steel & Service Center and Plate Processing
Proprietary steels
  • DILLIDUR
  • DILLIMAX
  • DI-MC
  • DIWETEN
  • DICREST
  • DIWA
  • DILLINAL
  • DIROS
  • DIMO
  • DIFENDER
  • DICUT
  • DI-RACK
  • DIGEAR
  • DI-TANK
  • DIWIND
  • Other steels
Plates on stock and steel services
  • Heavy plate services ex stock
  • Heavy plate services ex mill
By-products & Chemical laboratrory
  • By-products
  • Chemical laboratrory services