Knowledge

Q345R and Q370R are Chinese (GB standard) pressure vessel steel grades, indicating they are low-alloy steels used for boilers, tanks, and reactors, wi

P500QH and P500Q are grades of weldable, fine-grain, quenched and tempered (Q&T) steel under the EN 10028-6 standard, used for pressure vessels and bo

P275NL2 and P355NL2 are European (EN 10028-3) fine-grain structural steels for pressure vessels, with 'P' for pressure, numbers for strength, and 'NL2

ASTM A299 Grade B and A302 Grade B are both manganese-silicon carbon steel plates for boilers/pressure vessels, but A299 Gr B is a non-alloy steel wit

P460QL1 and P690QL1 are high-strength, fine-grain steel grades from the EN 10028-6 standard, designed for weldable pressure vessels and high-temperatu

P500QL1 and P690QL1 are designations for high-strength, weldable, fine-grain steel plates conforming to the EN 10028-6 standard for pressure vessels a

P355Q and P460Q are European standard (EN 10028-6) weldable, fine-grain structural steels, heat-treated (quenched and tempered) for high-strength pres

P265GH and P355GH are European standard (EN 10028-2) carbon-manganese steels for welded pressure vessels and boilers, differing mainly in strength: P3

P235GH and P355GH are European standard (EN 10028) normalized, fine-grain steels used for pressure vessels and boilers, differing primarily in strengt

ASTM A302 Grades C and D are manganese-molybdenum (Mn-Mo) alloy steels for boilers and pressure vessels, differing mainly in their nickel content and

Q355GNH represents a significant advancement—a high-strength, atmospheric corrosion-resistant steel specifically engineered for structural application

Q355GNH high weathering steel plate is a high-strength, atmospheric corrosion-resistant structural steel produced in accordance with GB/T standards.