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.
Aubert & Duval processes nickel-base alloys, high-performance steels, and aluminium and titanium alloys.
Typical products for power generation applications:
The 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.
Aubert & Duval has developed a wide range of metal powders for additive manufacturing in Ni-Base and Co-Base superalloys and stainless steels.
Aubert & Duval has developed expertise in the design and production of Hot Isostatic Pressing parts.
Combining 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.
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® 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.
