Q345R Boiler steel plate is the most used materials to build specified elevated boilers and pressure vessels.Q345R owned the minimum yield strength at 345 Mpa for thin thickness and tensile strength above 510 Mpa.The best equivalent steel grade with Q345R is A516 Grade 70 in specification ASTM A516/A516M.
Q345R Adopt standard: GB/T 713 Standard Specification for boiler and pressure purposes, technical delivery condition and non alloy, alloy steels with specified elevated temperature properties.
Q345R Specification: Thickness: 3mm to 150mm; Width: 1220mm to 4200mm: Length: 5000mm to 18000mm
Mechnical Property for Q345R Pressure Vessel Steel:
| Thickness (mm) |
| Q345R |
> 3 ≤ 16 |
> 16 ≤ 36 |
> 36 ≤ 60 |
>60 ≤ 100 |
>100 ≤ 150 |
>150 |
| Yield strength (≥Mpa) |
345 |
325 |
315 |
305 |
285 |
265 |
| Tensile strength (Mpa) |
510-640 |
500-630 |
490-620 |
480-610 |
470-600 |
Chemical Composition for Q345R Pressure Vessel Steel (Heat Analysis Max%)
| Main chemical elements composition of Q345R |
| C |
Si |
Mn |
P |
S |
Alt (min.) |
| 0.20 |
0.55 |
1.20-1.60 |
0.025 |
0.015 |
0.020 |
Third Party Inspection for Q345R: ABS, DNV, BV, GL, CCS, LR, RINA, KR, NK, CE, SGS, IKE, IEI or other quality department.
Q345R Delivery Time Or Lead Time: 20-35days
Q345R Extra Service:Pretreatment (Shot Blasting, Sand Blast, Painting and Galvanized), Cutting Parts, Sample Service, Third Party inspection, UT Test and Size inspection.
If you have any requirement in steel plate for Q345R, whether the new plate or stock list of material, please feel free to contact us by email of calling.
