+86 371 55057610 
inquiry@xsteelplate.com
■ Overview
GB/T1591 high strength low alloy structural steel grade Q345E owned minimum yield strength at 345Mpa and tensile strength above 470Mpa.When rolling steel angles Q345E,the impacting test shall be done under low temperature at minus 40 centigrade.
■ Full Data
Technical Requirements & Additional Services:
♦ Low temperature impacting test
♦ Cutting and welding as per end user’s demands
♦ More striction on some chemical elements contains
♦ Issued Orginal Mill test certificate under EN 10204 FORMAT 3.1/3.2
♦ Ultrasonic test under GB/T2970,JB4730,EN 10160,ASTM A435,A577,A578
♦ Low temperature impacting test
♦ Cutting and welding as per end user’s demands
♦ More striction on some chemical elements contains
♦ Issued Orginal Mill test certificate under EN 10204 FORMAT 3.1/3.2
♦ Ultrasonic test under GB/T2970,JB4730,EN 10160,ASTM A435,A577,A578
■ Techicals
►Mechnical property for Q345E low alloy structural steel angle:
| Thickness (mm) | ||||
| Q345E | ≤ 16 | > 16 ≤ 35 | > 35 ≤ 50 | >50 |
| Yield strength (≥Mpa) | 345 | 325 | 295 | 275 |
| Tensile strength (Mpa) | 470-630 | |||
►Chemical composition for Q345E low alloy structural steel angle (Heat Analysis Max%)
| Main chemical elements composition of Q345E | ||||||||
| C | Si | Mn | P | S | V | Nb | Ti | Al (min.) |
| 0.18 | 0.55 | 1.00-1.60 | 0.025 | 0.025 | 0.02-0.15 | 0.015-0.060 | 0.02-0.20 | 0.015 |
Tel：+86 371 55057610 
Fax： +86 371 5505 7611