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High-strength quenched and tempered Q960E steel plate

Posted:2021-12-29 09:57:49

Heat treatment state of Q960E steel plate: quenched and tempered (Q+T).

Q960E steel plate technical standard: GB/T 16270
Q960E high-strength quenched and tempered steel plate for high-strength structure has a yield strength greater than or equal to 960MPa, has a high yield strength and tensile strength, and has great resistance to brittle failure.

Melting analysis of chemical composition of Q960E steel plate:

C

Si

Mn

P

S

Ni

Cr

Mo

Cu

Nb

V

Ti

B

CeqMax

≤0.2

≤0.8

≤2

≤0.02

≤0.010

≤2

≤1.5

≤0.7

≤0.5

≤0.06

≤0.12

≤0.05

≤0.005

≤0.82

Composition Remarks: At least one grain refinement element of Nb, Ti, V, Al is added to the steel, and the minimum amount of at least one element is 0.015 (Als for Al). Alt can be used instead of Als, in this case Alt ≥ 0.018. Ceq = C+Mn/6+(Cr+Mo+V)/5+(Ni+Cu)/15

Mechanical properties of Q960E steel plate:

Thickness	Mechanical properties
≤50mm	ReH(MPa)	≥960	When the yield is not obvious, use Rp0.2
	Rm(MPa)	980-1150
	A(%)	≥10
	Impact temperature	-40
	Akv(J)	≥27	Longitudinal

Q960E steel plate has excellent low temperature toughness, so it can be used in large welded structural parts and low temperature environments.