GB-T1591 Q390B Steel Plate supplier
Qfsteels are specialized in exporting GB-T1591 Q390B Steel Plate Low alloy and high strength steel plate. GB-T1591 Q390B Steel Plate heavy plate and wide, heavy plate Which is a large steel plate supplier mill at Qfsteels Group.
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Q390B Adopt standard: GB-T1591 Standard Specification is for Rolled Steels for Welded Structure
Q390B Specification: Thickness: 1mm to 500mm; Width: 1500mm to 4500mm: Length: 3000mm to 27000mm
Third Party Inspection for Q390B:
Q390B 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 | 0.20 | 0.20 |
| Cr | Ni | Cu | N | Mo | B | Als min | |
| 0.30 | 0.50 | 0.30 | 0.015 | 0.10 | – | – |
GB-T1591 Q390B Steel Plate 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) | 390 | 370 | 350 | 330 | 330 | 310 | – | – | – |
Q390B Tensile Strength
| Nominal thickness (mm) | To 40 | 40-63 | 63-80 | 80-100 | 100-150 | 150-250 | 250-400 |
| ReH – Minimum yield strength (MPa) | 490-650 | 470-620 | – | – | |||
Q390B 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 | – | – |
Equivalent grades of grade Q390B
Q390B Delivery Time Or Lead Time: 15-30days
Q390B 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 GB-T1591 Q390B Steel Plate, 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
More Cheaper Price,
More 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 Q390B Steel Plate, please feel free to contact us.