We are GB-T1591 Q345B Steel Plate supplier
Qfsteels are specialized in exporting GB-T1591 Q345B Low alloy and high strength steel plate. GB-T1591 Q345B Steel Plate heavy plate and wide, heavy plate Which is a large steel plate supplier mill at Qfsteels Group.
Keyword: GB-T1591 Q345B, Q345B,Q345B Steel Plate,Q345B Stock,Q345B supplier
Q345B Adopt standard: GB-T1591 Standard Specification is for Rolled Steels for Welded Structure
Q345B Specification: Thickness: 1mm to 500mm; Width: 1500mm to 4500mm: Length: 3000mm to 27000mm
Third Party Inspection for Q345B: ABS, DNV, BV, GL, CCS, LR, RINA, KR, NK, CE, SGS, IKE, IEI or other quality department.
Q345B Chemical composition Max % of the Product analysis of grade
| C | Si | Mn | P | S | Nb | V | Ti |
| 0.20 | 0.50 | 1.70 | 0.035 | 0.035 | 0.07 | 0.15 | 0.20 |
| Cr | Ni | Cu | N | Mo | B | Als min | |
| 0.30 | 0.50 | 0.30 | 0.012 | 0.10 | – | – |
Q345B Yield strength
| Nominal thickness (mm) | To 16 | 16-40 | 40-63 | 63-80 | 80-
100 |
100-
150 |
150-
200 |
200-
250 |
250-
400 |
| ReH – Minimum yield strength (MPa) | 345 | 335 | 325 | 315 | 305 | 285 | 275 | 265 | – |
Q345B Tensile Strength
| Nominal thickness (mm) | To 40 | 40-63 | 63-80 | 80-100 | 100-150 | 150-250 | 250-400 |
| ReH – Minimum yield strength (MPa) | 470-630 | 450-600 | 450-600 | – | |||
Q345B Impact Test degree and energy
| Min Energy Nominal thickness | |||
| Temperature ℃ | 20 | ||
| Thickness (mm) | 12-150 | 150-250 | 250-400 |
| Notch impact test. Min. absorbed energy | 34 | 27 | – |
Equivalent grades of grade Q345B
Q345B Delivery Time Or Lead Time: 15-30days
Q345B 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 Q345B, please feel free to contact us by email of calling.
If you had any question at our plate or service. Please contact our after service department to get faster reply.
Qfsteels Group Company Principle
Cheaper Price,
Faster Delivery,
The Best Company Prestige,
The Best After sales service,
The One step Steel material Solution
The Best Professional quality control system
Welcome to Qfsteels Group and any requirement in steel material GB-T1591 Q345B Steel Plate, please feel free to contact us.