What is the difference between high strength steel and SA633 high-strength structural steel grade D

BBN STEEL SA633 high-strength structural steel grade D 2020 newly inventory in Shanghai(500tons)
16*1524*5900, 5*2800*12000, 15*2000*12000, 6*2500*12000, 10*2120*9260
12.5*1820*6096, 10*2900*7350, 24*2650*11100, 5*2800*12000, 8*2600*10000
16*1524*5900, 8*2800*11230, 19*2910*11025, 32*2700*11025, 10*2270*7110
10*2120*9260, 65*2100*6000, 22.5*2910*11025, 12*2050*7780, 14*2050*9000
8*2600*10000, 10*2270*7110, 36*2140*9150, 40*2910*11000, 57*1600*6000

The mechanical properties of hot rolled steel plate are far less than that of cold working and forging, but the SA633 high-strength structural steel grade D, hot rolled steel plates have better toughness and ductility. Cold rolled steel plate has a certain degree of work hardening and toughness is low, but it can achieve a better yield ratio, and can be used for cold bending spring leaf and other parts. At the same time, because the yield point of cold rolled steel plate is close to the tensile strength, the danger is not foreseen in the use process, and accidents are prone to occur when the load exceeds the allowable load.

Tata Steel Europe plans to cut 1250 jobs. Henrik Adam, CEO of Tata Steel, said: "the financial situation of Tata Steel Europe is very serious at present, and there is an urgent need to improve the company's performance and financial situation." Tata Steel has decided SA633 high-strength structural steel grade D in November 2019 to cut 3000 jobs in its European operations to reduce costs. After a period of negotiations with the European labour Commission, the layoff plan cut that number by more than half, minimizing unemployment. Tata Steel has about 20000 employees in Europe.

EN10113 S275M is a technical delivery conditions for thermomechanical rolled weldable fine grain structural steels.S means the structural steel, M means the delivery condition.Capital letter L for the quality with specified minimum values of values of impact energy. SA633 high-strength structural steel grade D. The EN10113 S275M steel is equivalent to DIN StE285TM, UNI FeE275KGTM..