Stainless steel s690ql is a high-quality type of metal with a high strength-to-weight ratio and excellent mechanical properties. It also has excellent bending and welding properties. It is used in various automotive, aerospace, and medical industries. This is why it is used in such a wide range of applications.

Specification of S690QL Steel Plates

Generally, S690QL steel plates are generally used in various industries, such as the construction, machine building, and heavy transportation industries. S690QL has been proven to be highly resistant to high and low temperatures and is also non-reactive to acid fluids. It is available in several finishing options.

These plates are also lightweight, which is another reason designers prefer them. They offer significant cost savings in the processing and handling of materials and allow for leaner-designed structures. These plates are easy to fabricate and are also highly durable.

In addition, the S690QL steel plate offers high tensile strength and is suited for bending. These properties make it ideal for structural applications, especially in heavy-duty vehicles and trailers. It also provides improved energy efficiency and safety.

S690QL steel plates are fabricated using high-quality alloys. They are produced under strict supervision and undergo effective testing. They are supplied in quenched and tempered condition. This makes them stronger than other basic structural steels.

Bending and welding properties

Various studies have investigated the bending and welding properties of high-strength steels. These studies have focused on the influence of various welding parameters on the microstructure of the weld. These results have been used to determine the optimal welding technology for high-strength steel.

During the present study, S690 QL structural steel was investigated for its bending and welding properties. Moreover, the chemical composition of the test material was determined by optical emission spectroscopy. The data will be useful in predicting the mechanical behavior of S690QL under extreme conditions.

The test material was quenched and tempered steel grade S690QL. It was welded using friction stir welding. The joints were made without filler metal. The maximum stress-relieving temperature of S690QL is 560 C/1040 F.

Welded joints exhibit a regular shape with a slight concave root on the face side. The width of the heat-affected zone is uniform throughout the thickness of the welded joint.