EN steel grade S690QL material stock size and price list

The strength indexes of EN steel grade S690QL material pipeline steel mainly include tensile strength and yield strength. At the same time, the yield strength ratio (yield strength to tensile strength ratio) of pipeline steel is also required, which is generally in the range of 0.85-0.93. Pipeline steel shall have enough high impact toughness (crack initiation and crack arrest toughness). For the base metal, when the toughness of the EN steel grade S690QL material material meets the requirements of crack arrest, its toughness generally can also meet the requirements of crack prevention.

Cold formed hot rolled automotive structural steel QSTE420TM plateMaterial/brand: QSTE420TMExecutive standard: Q/BQB 310Chemical composition (melting analysis)%Carbon: ≤0.12, Silicon: ≤0.35, Manganese: ≤1.50, Phosphorus: ≤0.05, S: ≤0.025, Titanium: ≤0.22, Niobium: ≤0.09, Aluminum: ≥0.01Mechanical propertiesYield strength MPa: ≥420Tensile strength MPa: 480-620Elongation: ≥21

When providing technical services on site, the after-sales personnel shall strictly abide by the safety rules and regulations of the construction site, consciously take safety protection measures (such as wearing safety helmet when entering the construction site), accept the supervision and management of the site; without permission on the construction site, they shall not dismantle, smear or damage any goods; the commissioning of contract goods shall be carried out under the supervision of the site supervisor If necessary, it shall be approved by the site supervisor or the person in charge of the project department.