Tips for purchasing high quality S690QL quenched and tempered material

Our technical department plays important role in our professional communication with customers, especially those who have high technical requirements for steel materials and those who need complex further processing. Under such condition, our technician department can provide technical support in time, anylize customer design or make drawing according to customer needs rapidly, so that we can proceed smoothly. The profession of our team has won great praise of customers.

Q690D grade is a low-alloy high-strength structural steel, belonging to the structural steel category. Q690D steel plate executive standard: GB/T16270-2009. Q is the expression of yield strength, 690 is its lower limit yield value, and D is its grade. This grade also has a higher yield strength and tensile strength. Q690 series grades also include Q690C, Q690D, Q690E, Q690F. Delivery status of steel S690QL quenched and tempered material: It should be delivered in quenched and tempered state. In addition, this grade can be delivered according to some special requirements of customers, but it should be indicated in the contract.

In the second step of hot rolling process, different finished mills are used to roll billets or continuous casting billets into finished steel of proper shape and size. This S690QL quenched and tempered material production process is called finished product production, which is generally divided into two stages of rough rolling and finish rolling. In the roughing stage, a large amount of reduction (reduction per pass) is adopted to reduce the number of passes and improve the output; after roughing, the finishing stage is entered, and the finishing is carried out with a small amount of reduction to achieve a good surface and accurate S690QL quenched and tempered material size.

A283 Gr A steel composition(%)
Carbon, max 0.14
Manganese, max 0.90
Silicon: 0.40 0.15-0.40
Phosphorus, max 0.035
Sulphur, max 0.04
A283 Gr A steel plate mechanical property
Tensile Strength: 45,000 -60,000 psi [310 - 415 MPa]
Min. Yield Point: 24,000psi [165 MPa]
Elongation in 8"": 27% min
Elongation in 2"": 38% min

The company's headquarters has a well-established logistics distribution system, which can quickly transport the steel materials to the port through the contracted logistics companies. Professional contracted logistics companies can significantly reduce costs and various commodity-related expenses. Meanwhile, the flexible transfer ensures that the S690QL quenched and tempered material steel materials can be shipped immediately after passing the quality inspection.

Thank you for visiting the website of BBN Steel and affording us the opportunity to become your preferred vendor of S690QL quenched and tempered material. Our team strives to lead our peers in providing value-added services and support to our clients throughout the world. We look forward to welcoming you to come and visit our factory.