GB/T1591 High Strength Low-alloy Steel Pipe grade Q345E owned minimum yield strength at 345Mpa and tensile strength above 470Mpa.When rolling steel plate Q345E,the impacting test shall be done under low temperature at minus 40 centigrade.
GB/T1591 Q345E Steel Chemical Composition:
Grade |
C % |
Si % |
Mn % |
Cr % max |
Ni % max |
Cu % max |
P % max |
S % max |
Q345E |
< 0.18 |
< 0.50 |
< 1.70 |
0.30 |
0.50 |
0.30 |
0.30 |
0.30 |
GB/T1591 Q345E Steel Mechanical Property:
Steel grade |
Tensile strength Rm/MPa |
Yield Strength Rel/MPa |
Break elongation A% |
Q345E |
470-630 |
>345 |
21 |
GB/T1591 High Strength Low-alloy Q345E Steel Pipe Finished goods condition: hot forging/hot rolling + annealing/normalizing + tempering/quenching + tempering/any conditions based on the customer's requirement.
GB/T1591 Q345E Steel Pipe Usage: Pipeline Transport, Special Purpose, Oil/Gas Drilling, Machinery Industry, Chemical Industry, Mining, Construction and Decoration.
Anyway, if you want to find GB/T1591 High Strength Low-alloy Q345E Steel Pipe supplier, manufacturer, exporter, please contact Katalor steel’s sales team. We will give you the GB/T1591 High Strength Low-alloy Q345E Steel Pipe competitive price and best service.