Tag: Heat treatment of stainless steels

Heat treatment of stainless steels

Heat treatment is important for stainless steels as it enables the adjustment of their mechanical properties, such as hardness, strength, and ductility. It also enhances their corrosion resistance and relieves internal stresses, resulting in improved performance and suitability for various applications.

How heat treatment for stainless steels works

Heat treatment of stainless steels typically involves three main steps: heating, holding at a specific temperature, and cooling. The material is heated to a precise temperature to induce desired transformations in its microstructure. It is then held at that temperature for a specific duration to allow for the desired changes to occur. Finally, the material is cooled at a controlled rate, which determines the final properties of the stainless steel.

Innovate UK with TWI and Langley support Adv-Flow

Stainless Steel World Publisher -
The ‘Development of Advanced, Highly Corrosion Resistant Coriolis Mass Flow Meters (Adv-Flow)’ is an innovative research project supported by Innovate UK, led by KROHNE Limited, with TWI and Langley Alloys.

TWI begins Adv-Flow project

Stainless Steel World Publisher -
TWI announced the start of an Innovate UK funded research project entitled ‘Development of Advanced, Highly Corrosion Resistant Coriolis Mass Flow Meters (Adv-Flow).’ The project is led by KROHNE Limited, with partners TWI and Langley Alloys.

RD X3 PM welding torch meets welders’ requirements

Stainless Steel World Publisher -
Welded constructions as big as houses are typical at Ebner, the specialist for heat treatment technology and industrial furnace construction based in Leonding, Austria.

CONDAT acquires KEMNO

Stainless Steel World Publisher -
CONDAT SA and KEMNO have reached the closing date of the agreement giving CONDAT possession of the Italian-based company KEMNO.

ExOne certifies Inconel 718 as Third-Party Qualified

Stainless Steel World Publisher -
The ExOne Company announced that the nickel-based alloy Inconel 718 has been certified as Third-Party Qualified, the company’s highest designation of material readiness for its metal 3D printers.

Change in Management of Tenova LOI Thermprocess

Stainless Steel World Publisher -
Tenova LOI Thermprocess, a company in the field of heat treatment plants based in Essen, is undergoing a change in its management organization.

Casting upgrade welding – requirements, techniques and concepts

Stainless Steel World Publisher -
The world of fusion welding has effected many industries and fabrication opportunities worldwide. Countless industrial items are assembled using a vast number of different welding techniques governed by numerous rules, codes and norms. Casting upgrade welding is a very specialised series of operations. The casting process offers a unique opportunity as the casting is an economic preform. Weld upgrade is inherent to the process.

Applications of nickel alloys for piping and valves

Stainless Steel World Publisher -
Inconel alloys such as Inconel 625, 718 and X750 are widely for piping and valves in the offshore sector. Although these alloys are used widely for both internal and external corrosion resistance, they have different applications such as increasing mechanical strength, reducing friction and galling, facilitating cycling and mitigating fatigue stress.

SIJ Metal signs an agreement with ANDRITZ

Stainless Steel World Publisher -
SIJ Metal Ravne signed an agreement for the supply of a complete heat treatment plant with the international technology group ANDRITZ, including two ANDRITZ MAERZ® double-chamber furnaces, a charging machine and high-volume quenching tanks, as well as an automation system.

Tenova LOI secures a contract from JSC Pervouralsk

Stainless Steel World Publisher -
Tenova LOI Thermprocess is the specialist, within Tenova, for customer-specific heat treatment lines and continuous roller hearth furnace systems for bright annealing stainless steel pipes in a 100% H2 atmosphere.
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Heat treatment is crucial for stainless steels due to several reasons. Firstly, it allows for the customization of the material’s mechanical properties. By subjecting the stainless steel to controlled heating and cooling processes, it is possible to achieve specific hardness, strength, toughness, and ductility levels tailored to the intended application. This enables the material to meet the required performance criteria, ensuring it can withstand various mechanical stresses and loads.

Secondly, heat treatment of stainless steels plays a vital role in enhancing the corrosion resistance of stainless steels. Certain heat treatment methods, such as solution treatment and aging, can refine the microstructure and promote the formation of corrosion-resistant phases, reducing the susceptibility to rust and other forms of degradation.

Heat treatment for stainless steels is essential for relieving internal stresses that may have been induced during manufacturing processes like welding or cold working. This stress relief minimizes the risk of cracking, distortion, or premature failure of the stainless steel components.

Heat treatment is a key process to optimize the mechanical properties, corrosion resistance, and structural integrity of stainless steels, ensuring their suitability for a wide range of applications in industries such as aerospace, automotive, construction, and manufacturing.

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