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GET PRICE GB/T 1591 Q345EZ35 belongs to the low alloy and high strength steel plate. Q345EZ35 plate has low temperature impact property. The grade of the steel is composed of three parts: the Chinese phonetic alphabet, the yield strength value and the quality grade symbol which represent the yield strength. “Q” represents the yield strength; “345” represents the yield strength value in MPa; “E” indicates grade (through -40 degree impact test). Q345EZ35 Plate is mainly used in construction machinery, mining machinery, metallurgical environmental protection, water conservancy and hydropower, track equipment and other structural parts.
GB/T 1591 Q345EZ35 Plate Chemical Composition:
| Grade | Grade of quality | Chemical Components |
| ||||||||||||||||||||||
| C | Si | Mn | P | S | Nb | V | Ti | Cr | Ni | Cu | N | Mo | B | Als | |||||||||||
| Not more than | Not less than | ||||||||||||||||||||||||
| Q345 | A | ≤0.20 | ≤0.50 | ≤ | 0.035 | 0.035 | 0.07 | 0.15 | 0.20 | 0.30 | 0.50 | 0.30 | 0.012 | 0.010 | - | - | |||||||||
| B | 0.035 | 0.035 | |||||||||||||||||||||||
| 0.015 | |||||||||||||||||||||||||
| C | 0.030 | 0.030 | |||||||||||||||||||||||
| D | ≤0.18 | 0.030 | 0.025 | ||||||||||||||||||||||
| E | 0.025 | 0.020 | |||||||||||||||||||||||
GB/T 1591 Q345EZ35 Mechanical Properties:
| Grade | Quality | Tensile test | ||||||||
| Yield strength MPa for the following thickness（diameter, side length） | ||||||||||
| ≤16mm | ＞16mm | ＞40mm | ＞63mm | ＞ | ＞ | ＞ | ＞ | ＞ | ||
| Q345 | A | ≥345 | ≥335 | ≥325 | ≥315 | ≥305 | ≥285 | ≥275 | ≥265 | - |
| B | ||||||||||
| C | ||||||||||
| D | ≥265 | |||||||||
| E | ||||||||||
| Grade | Quality | Elongation | |||||
| ≤ | ＞40mm | ＞63mm | ＞ | ＞ | ＞ | ||
| Q345 | A | ≥ | ≥ | ≥ | ≥ | ≥ | - |
| B | |||||||
| C | ≥ | ≥ | ≥ | ≥ | ≥ | ||
| D | |||||||
| E | ≥17 | ||||||
| Grade | Quality | Tensile strength | ||||||
| ≤ | ＞40mm | ＞63mm | ＞ | ＞ | ＞ | ＞ | ||
| Q345 | A | 470-630 | 470-630 | 470-630 | 470-630 | 450-600 | 450-600 | - |
| B | ||||||||
| C | ||||||||
| D | 450-600 | |||||||
| E | ||||||||
GB/T 1591 Q345EZ35 Size Range (MM):
The size range of GB/T 1591 Q345EZ35 is 6-250*1600-4100*L
GB/T 1591 Q345EZ35 Delivery Condition:
Delivery condition of GB/T 1591 Q345EZ35: AR、CR、NR、TMCP、N、T、N+T、Q+T.
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