TBT 1979 08CuPVRE steel sheet S355JR, which one has higher tensile strength?

India's Ministry of TBT 1979 08CUPVRE steel sheet steel has extended the deadline for steel product certification from April 23 to three months as the Bureau of standards (BIS) has closed factories and laboratories due to the current blockade and travel ban. According to the order of the Ministry of Commerce, "the implementation date of the following Indian Standards is extended for three months after April 23, according to the notice of the order for TBT 1979 08CUPVRE steel sheet steel products 2000."

The wear-resistant composite plate, TBT 1979 08CUPVRE steel sheet should be pre heat treated to eliminate the residual stress produced in the machining process. If conditions permit, vacuum heating quenching and cryogenic treatment after quenching should be selected as far as possible. On the premise of ensuring the hardness of steel plate, pre cooling, step cooling and quenching or high temperature quenching should be selected as far as possible. For some wear-resistant composite plates, pre heat treatment, aging heat treatment and quenching, tempering and nitriding heat treatment can be used to control the accuracy of the wear-resistant composite plate.

Q/BQB 310-2009 cold formed hot rolled automotive structural steel Material: QSTE460TMChemical composition (melting analysis)%C: ≤0.12, Si: ≤0.35, Mn: ≤1.60, P: ≤0.03, S: ≤0.025, Ti: ≤0.22, Nb: ≤0.09, Al: ≥0.01Mechanical properties of QSTE460TM steelYield strength MPa: ≥460Tensile strength MPa: 520-670Elongation: ≥19

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