Land turbines

 

Aubert & Duval is vertically integrated from melting & remelting (with some of the largest triple-melt nickel-base alloy ingots and billets on today’s market) through to forging and machining to near-net shape profiles. We offer one of the largest and most comprehensive capabilities in the design and manufacture of critical closed-die superalloy forgings for land-based turbines.

Forged and hipped parts for power generation applications

Aubert & Duval processes nickel-base alloys, high-performance steels, and aluminium and titanium alloys.

Aubert & Duval produces expanders discs for gas and steam turbinesTypical products for power generation applications:

  • Large, medium and small size rotating forgings for gas turbine applications, compressors and expanders – disks, spacers, shafts, impellers, rotor hubs, distance pieces, etc. – obtained through a wide range of open and closed-die forging presses (up to 65,000 tons)
  • Forgings for steam turbines
  • PM HIP static and rotating parts for gas turbines and compressors
  • Metal powders for additive manufacturing
  • Non-magnetic retaining rings for generators
  • Bars for blades, nuts and bolts, rods, etc.

A complete bars offer

Aubert & Duval produces bars in superalloys and high performance steels for gas and steam turbinesThe initial quality of the chosen material is key to the part’s final performance. We offer a wide range of products in several forms of bars (round, flat and square), billets, sheets and wire rods to ensure a close fit with customers’ requirements.

Because we offer more than just a bar of material, we bring technical support and innovation to our customers as well as different services in heat treatment and logistics.

Powders metallurgy

Powders for additive manufacturing

Aubert & Duval has developed a wide range of metal powders for additive manufacturing in Ni-Base and Co-Base superalloys and stainless steels.

 

Hipped parts

Aubert & Duval has developed expertise in the design and production of Hot Isostatic Pressing parts.

A SUPPLIER OF CHOICE FOR OEMs AND MRO

Aubert & Duval produces forgings for gas and steam turbinesCombining metallurgical expertise, outstanding industrial capabilities and high manufacturing skill, Aubert & Duval contributes to development programs for advanced generations of steam and gas turbines.

Whether working on homogenous structures for massive closed-die forged superalloy disks for gas turbines, or wrought advanced materials for an ultra-high temperature steam turbine, Aubert & Duval is a partner for OEMs striving for high technical, economic and environmental performance.

Aubert & Duval continuously develops new processes and new products to face technical and economic challenges.

MLX®17

One of the main technical challenges to improving efficiency and reducing construction costs for power generation plants is to extend the last stage blades. MLX®17 is a precipitation-hardened martensitic stainless steel capable of tensile strength up to 1,700 MPa, combined with high toughness, high fatigue and stress, corrosion and cracking resistance.

Together with another of Aubert & Duval’s grades, MARVAL® X12H, MLX® 17 is currently one of the very best steel grades for the design of very long end-blades for steam turbines.

AD730®

AD730® is a highly innovative nickel-base superalloy. It withstands higher temperatures (750 °C / 1,382 °F), while preserving strength, creep and fatigue resistance at a competitive cost.
Targeted applications: turbine blades, buckets, fasteners, as well as rotating parts for gas turbines.

See also

PER706

Superalloys

PER72

Superalloys

PER3

Superalloys

PER718

Superalloys

AD730

Superalloys