1. Q690E high-strength plate material analysis:
Q690E can be called a low-temperature-resistant high-strength steel with a yield strength of 690Mpa. "Q" represents the yield functional strength, and 690 represents the yield strength value, " "E" represents the quality grade of the steel plate; the grades are A, B, C, D, and E, among which the impact of grade D steel plate is -40°C. Q690E steel plate has high yield strength and tensile strength. As a high-strength welded structural steel plate, Q690E has excellent welding performance. Q690E steel plate implementation standards: GB/T16270-2009, GB/T1591-2018. Q690E is commonly used on construction machinery. The Q690E high-strength steel plate produced by Wuyang Steel has reliable quality and stable performance.
2. Chemical composition of Q690E steel plate:
Composition C Si Mn P S Ni Cr Mo Nb Ti B
Q690E ≤0.18 ≤0.60 ≤2.0 ≤0.030 ≤0.025 ≤0.80 ≤1.00 ≤0.30 ≤0.11 ≤0.020 ≤0.00
3. Q690E steel plate mechanical properties:
Trademark inspection item effect description or measured value
Q690E ? Rp0.2 Mpa ≥640
Rm Mpa ≥730
A50 % ≥14
180° cold bending d=3a perfect
-40°C impact energy J 47
4. Use of Q690E steel plate:
Q690E steel plate corresponds to the European standard S690QL and is a -40° impact high-strength quenched and tempered steel plate. Manufactures various types of engineering machinery that are resistant to low temperature shock, such as drilling rigs, electric shovels, electric wheel dump trucks, mining cars, excavators, loaders, bulldozers, various cranes, coal mine hydraulic supports and other machinery for mining and various engineering constructions. Equipment and other structural parts.