Steel Division

Nickel plates

A 645 Gr A / A 645 Gr B, cost reduction and increased safety in ethylene and LNG tank construction

Revision of API Standard 620, "Design and Construction of Large, Welded, Low-Pressure Storage Tanks" in 2018 has made it possible to use ASTM steel grades A 645 Gr A and Gr B for the construction of ethylene, LPG or LNG tanks.

State-of-the-art production facilities make it possible for us to manufacture both steel grades A 645 Gr A and Gr B as well as conventional 5% and 9% nickel steels.

Use of A 645 Gr A for the production of ethylene tanks provides roughly 15% higher strength, increased safety and the possibility of reduced wall thickness for substantial cost savings in tank construction.

ASTM A 645 Gr B achieves material properties equivalent to those of traditional 9% nickel steels in LNG storage but meets these requirements with roughly 30% lower nickel content. A further result is substantially reduced costs in the production of onshore and offshore LNG tanks and in the construction of LNG fuel tanks. 

LNG

Natural gas is liquefied at the extremely low temperature of -164 °C, shrinking its volume by a factor of 600. This makes its storage and transport possible and economically efficient. At these very low temperatures, the utilization of special 9% nickel steels is necessary in order to guarantee sufficient ductility and resistance to brittle cracking. We supply extra wide plates to this market segment, even in thicknesses up to 5 mm.

LPG

The LPG process is used to produce propane and process gases from natural gas. These gases are liquefied at room temperature at low pressure and are stored in special tanks made of 5% nickel steels. Dafür bieten wir Mantelbleche und Böden aus einer Hand.

Highest quality for the highest degree of security

The basis of our high-quality nickel plates are high-purity slabs from our own steelmaking plant. The very low carbon content guarantees perfect weldability. Further advantages are found in the product's excellent impact strength and the fracturing properties (CTOD). The entire plate surface undergoes ultrasonic testing. The residual magnetism is below 50 Gauss.

Preprocessing to meet specific customer requirements

  • Sand-blasted or sand-blasted and primed
  • Preparation of welded edges: Minimal hardening of the burned edge is made possible by the low carbon content.
  • Plate bending

Steel grades

Steel groupSteel grade standardSteel grades
5% nickel steelsEN 10028-4:2003 ASTM/ASME 645X12Ni5 A/SA 645 Grade A
5.5 % nickel steelsASTM/ASME 645A/SA 645 Grade B
9 % nickel steelsEN 10028-4:2003 ASTM/ASME 553X7Ni9 A/SA 553 Type 1

 

Dimensions*

Plate thickness:

5 % nickel steels: 5–70 mm (A 645 Gr A 5-50 mm)

5.5% nickel steels: 5-50mm

9% nickel steels: 5-60 mm
Plate width1600–3800 mm, extra wide plates: 9% nickel steels in 5 mm thickness are available in widths up to 2800 mm.
Plate length12,700 mm max.
Ordered weightAt least 2 tons per line item
Unit weight13.0 tons max. per single plate

*) Additional dimensions upon request.

Accreditations

Our product quality is certified by all of the leading certification institutions. We also meet the highest requirements of KOGAS, the state-operated Korean gas company.

Certifications for 5% nickel steels

  • Lloyd's Register of Shipping (LRS), Great Britain
  • Technischer Überwachungsverein (TÜV), Germany
  • Germanischer Lloyd (GL), Germany
  • Registro Italiano Navale (RINA), Italy
  • Lloyd's Register of Shipping (LRS), Great Britain
  • Bureau Veritas (BV), France

Certifications for 9 % nickel steels

  • Lloyd's Register of Shipping (LRS), Great Britain
  • Technischer Überwachungsverein (TÜV), Germany

Contact Person

Apparatebau voestalpine

Apparatebau

We are the world’s only single-source supplier of shell plates, heads and cones in carbon steel and roll-bonded clad plate and we are able to provide optimized workability and lower expense for our customers.

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Apparatebau

Exploring the limits of performance down to -196 °C

“We are your reliable partner in the supply of steels for pressure vessels, apparatuses and power generation equipment, understand our customers and provide the quality they need” As the world’s only single-source supplier of shell plates, heads and cones in carbon steel and roll-bonded clad plates, we are able to provide optimized workability and lower expense for our customers.

voestalpine High-quality package

A high-quality package

We are a single-source supplier of shell plates, heads and cones made of plain carbon steel, in roll-bonded clad design and for sour service. 

Reduce the wall thickness of your componens by using our high-strength CrMo and CrMoV steel und chose your ideal plates dimension up to 200 mm in thickness and 24 tons per plate.

 

Cryogenic nickel plates

We offer 5%- and 9%-nickel steels according to EN 10028-4 and ASTM 553 in plate thickness range up to 70 mm, width up to 3,800 mm, length up to 12,700 mm and up to 13 tons per single plate. 

The revision of API Standard 620 in 2018 has made it possible to use ASTM steel grades A 645 Gr A and Gr B for the construction of ethylene, LPG or LNG tanks. Our state-of-the-art production facilities make it possible for us to manufacture both steel grades A 645 Gr A and Gr B as well as conventional 5% and 9% nickel steels.

voestalpine unsere Antwort auf Korrosion

Our answer to corrosion

Clad plates are the economic alternative to expensive high-alloy and non-clad plates. Roll-bonded clad plates are our answer to corrosion and explosion. 

With a cladding capacity of 60,000 tons a year, we are World´s leading producer of roll-bonded clad plates.

Broad range of expertise

We supply steel plates and material expertise for the penstocks of hydro-power stations and provide high-strength heavy plates as fine-grained steels with a minimum yield strength of 700 MPa in TMCP, direct-quenched and tempered or quenched and tempered condition. 

In a first-time application of high-strength TMCP steel, special-grade alform plate 700 M of voestalpine was successfully used in the penstock of the Reisseck pumped-storage hydro-power station in Austria.

voestalpine Böden und Konen, Qualitätspressteile

Heads and cones, high quality pressed parts

Offering shell plates, heads and cones from a single source, made of carbon steel and roll-bonded clad plates.

In our own Single-part and multi-part heads and cones, special pressed parts

We manufacture custom-made heads as a single part or welded from multiple parts. Multi-part heads and cones are available in head gauges of up to 160 mm and diameters of up to 14,000 mm.


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toughcore®

toughcore®

Heavy plates with a fine microstructure to the very core, created for extremely high toughness and the most adverse environments.

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