AGC technology to control thickness of Q690D carbon steel plate sheet

We are world class steel Q690D carbon steel plate sheet materials supplier. We are engaed in providing raw steel materials such as steel plates / steel coils / steel sheets / steel pipes, deep processing and a series project design and solutions to clients. We guarantee to return goods for free for Q690D carbon steel plate sheet quality problem during its lifetime. Your satisfactory is our permanent pursue. We always welcome advise from clients to make self-improvement continously. And sincerely to build long-term cooperation with you.

We can supply profiled plate in a range of grades in thicknesses up to 400mm and dimensionally we can cut up to 24 meters in length and 5 meters wide with flame cutting, plasma cutting and laser cutting service. This capability is backed by an in-house CAD team, capacity that enables us to work to short lead times and an established delivery network that ensures you receive the steel Q690D carbon steel plate sheet products when you need it.

Corrosion resistant steel plate, as a new generation of advanced steel material, has 2-5 times of atmospheric corrosion resistance as ordinary carbon steel such as Q690D carbon steel plate sheet, and the longer the service time, the more prominent the corrosion resistance. Due to its characteristics of rust resistance, coating free, thinning and consumption reduction, labor saving and energy saving, corrosion resistant steel plate can be applied to steel structures exposed to the atmosphere for a long time, such as buildings, vehicles, bridges, towers, etc., and can also be used to manufacture structural parts such as containers, railway vehicles, oil derricks, seaport buildings, oil production platforms, etc.

S355J2 steel plate rolling process is controlled rolling process. In the rolling process, the ingot rolling temperature is 1000-1050℃; in the first stage, the low-speed and large reduction rolling process is adopted, the high-temperature stage is 950-1000℃, the Q690D carbon steel plate sheet rolling speed is 1.6-2.0m/s, the single reduction rate is 15-20%, and the cumulative reduction rate is 40-45%, so as to ensure sufficient deformation of ingot. In the first stage, the start rolling temperature is 910-930℃, and the finish rolling temperature is ≤ 870℃.As a basic building material, steel plates are currently widely used in automobiles, shipbuilding, chemical industry, aerospace and other fields. Reasonable selection of flaw detection methods to ensure the quality of Q690D carbon steel plate sheet steel plates is of great significance to safe production. Common defects of steel plates are folding, inclusion, shrinkage, air bubbles, delamination and cracks. These problems can be discovered in time through flaw detection.

Well known Chinese steel material supplier Q690D carbon steel plate sheet products5.5*2490*11000,6*3000*11000, 5.5*2560*8100, 6*3000*8500, 8*2600*10000, 10*2200*12000, 5.5*2490*9500, 9*2100*10050, 6*2690*8600, 8*1800*4700, 10*2200*12000, 6*1800*6000, 6*3000*10000, 6*2860*13000, 10*2500*12000, 6*3000*7400, 6*2960*8500, 6*2860*6300, 10*2020*4900, 6*3000*8800, 6*1700*6000, 8*2600*10000.

The company strengthens process management and pays attention to assessment. One of the key points of good service is to strengthen the process management and improve the evaluation mechanism. Make the after-sales service system more perfect and provide better service for customers.