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■ Overview
GB/T1591 GB/T706 Q345 includes five different steel grades as Q345A,Q345B,Q345C,Q345D and Q345E steel angles.These high tension steel grades owned the same mechincal properties,minimum yield strength at 345Mpa and tensile strength within 470-630Mpa.
■ 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 Q345A low alloy structural steel angles:
►Chemical composition for Q345A low alloy structural steel angle (Heat Analysis Max%)
| Thickness (mm) | ||||
| Q345A | ≤ 16 | > 16 ≤ 35 | > 35 ≤ 50 | >50 |
| Yield strength (≥Mpa) | 345 | 325 | 295 | 275 |
| Tensile strength (Mpa) | 470-630 | |||
►Chemical composition for Q345A low alloy structural steel angle (Heat Analysis Max%)
| Main chemical elements composition of Q345A | |||||||
| C | Si | Mn | P | S | V | Nb | Ti |
| 0.20 | 0.55 | 1.00-1.60 | 0.045 | 0.045 | 0.02-0.15 | 0.015-0.060 | 0.02-0.20 |
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