S690QL ASTM equivalent carbon machining process

The carbon and low alloy steel plates are our main products.
Our main conducted standards for carbon and low alloy steel plates are (ASME) ASTM (S)A36, (S)A283, S690QL ASTM equivalent, (S)A572, (S)A573, (S)A633, (S)A709, EN10025-2, EN10025-3, EN10025-4, EN10025-6, JIS G3101, JIS G3106, DIN 17100, DIN 17102, etc. Our typical carbon and low alloy steel grades are (S)A36, (S)A283 grade C, (S)A572 grade 50, S235JR, S355JR, S355J2, SS400, SM570, ST37-2, ST52-3, Q235B, S690QL ASTM equivalent, Q345B, etc.

This week, the output of S690QL ASTM equivalent increased slightly, while the total inventory changed from decrease to increase, indicating that the apparent consumption of S690QL ASTM equivalent decreased again. At present, due to the current demand release is not as expected, while the S690QL ASTM equivalent production and inventory are still at a relatively high level, the market wait-and-see sentiment is strong. To sum up, it is expected that S690QL ASTM equivalent prices will continue to narrow consolidation in the short term.

The mechanical properties of S690QL ASTM equivalent steel plate are related to elastic or inelastic reaction or related to stress-strain relationship. Tensile strength, yield point, elongation and impact absorption energy are the main indexes to express the mechanical properties of hot rolled steel plate. Its value represents the ability of steel S690QL ASTM equivalent to resist various actions, which is the main criterion to evaluate the quality of steel material, and also the main basis for material selection and strength calculation in steel plate design.

According to the data released by the world iron and Steel Association, the world pig iron production in March 2020 was 103 million tons, a year-on-year decrease of 3.5%, a year-on-year increase of 1.8% in February, and the overseas pig iron S690QL ASTM equivalent production excluding China was 36.309 million tons, a year-on-year decrease of 11%.

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