P690QL2 mechanical properties, P690QL1 European standard quenched and tempered container plate, P690

P690QL2 mechanical properties, P690QL1 European standard quenched and tempered container plate, P690

P690QL1 European standard quenched and tempered container plate, including P355Q, P355QH, P355QL1, P355QL2, P460Q, P460QH, P460QL1, P460QL2, P500Q, P500QH, P500QL1, P500QL2, P690Q, P690QH, P690QL1, P690QL2 and other quenched and tempered European standard container steel plates.

P690QL1 Steel Plate Rolling: Wugang Xiangyang

1 Scope of

Application This European standard specifies the requirements for steel plates for pressure equipment for quenching and tempering steel, as specified in Table 1.

The requirements of EN10028-1 also apply to this standard.

2 Classification and Grade

2.1 This document covers the grades of steel given in Table 1 of the four qualities:

a) Basic series (P. Q）；

b) with the high temperature performance series (P. QH）；

c) The low-temperature performance is reduced to 40 °C series (P. QL1）；

d) Low temperature performance drops to 60 °C series (P. QL2）。

2.2
See EN10028-1 for grades
.

The P690QL1 plate is made of alloy special steel, which is used for pressure-bearing equipment, and has good plasticity, toughness, cold bending performance and welding performance. It is used to manufacture spherical storage tanks of more than 50 cubic meters, and can also be used to manufacture single-layer coil-welded containers, multi-layer hot-sleeved coil-welded containers, multi-layer wrapping containers and other second- and third-class containers and low-temperature pressure vessels.

P690QL2 size, shape, weight and allowable deviation

of the steel plate The size, shape and allowable deviation of the steel plate shall meet the requirements of 2007+A1:2009 in EN10028-1.

P690QL2 the hydrogen content of the metal diffusion in the weld;

b) brittle structure of the heat-affected zone;

c) The tensile stress of the welded joint is concentrated.

Note 2: Recommended provisions, such as EN 1011-1 and EN 1011-2, should be used, and the welding conditions and the welding range of the steel grade can be determined according to the thickness of the product.

Note 3: The mechanical properties of post-weld heat treatment (heat treatment) will be reduced if it is too fast. Therefore, the buyer is advised to seek the manufacturer's advice when inquiring and ordering, and to consider, where appropriate, verifying the mechanical properties of the simulated welded heat treatment samples.