Introduction of P690Q steel plate

P690Q steel plate is a quenched and tempered weldable fine-grained steel for basic purposes.

P690Q steel plate executive standard: EN10028-6. P690Q steel plate size, shape, weight and allowable deviation shall meet the requirements of 2007+A1:2009 in EN10028-1.

P690Q steel plate delivery status:
P690Q steel plate is usually delivered in a quenched and tempered state.
P690Q steel plate shall be delivered by shearing or flame cutting

Chemical composition of P690Q steel plate:
The chemical composition (melting analysis) of P690Q steel shall comply with the following table (%):

C	Si	Mn	P	S	N	B	Cr	Mo	Cu	Nb	Ni
≤0.2	≤0.8	≤1.7	≤0.025	≤0.01	≤0.015	≤0.005	≤1.5	≤0.7	≤0.3	≤0.06	≤2.5

Among them: Nb+Ti+V≤0.05; Cr+Cu+Mo≤0.5

P690Q steel plate mechanical properties:
The mechanical properties and process performance of P690Q plate should meet the requirements of the following table: (applicable to transverse direction)

Grade	Thickness	Yield Strength	Tensile Strength	Elongation
P690Q	≤50	≥690	770-940	≥14
	50-100	≥670	770-940
	100-150	≥630	720-900

P690Q steel plate is a professional alloy steel, steel for pressure equipment, with good plasticity, toughness, cold bending performance and welding performance.