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Q390D
Qilu
Product Description
Q390D Carbon Steel Plate
1: Q390D Steel Introduction
Q390D high-strength steel plate has high tensile strength and yield strength, and its hardness is also well improved after special alloying elements are added and heat treatment process. Its tensile strength is generally above 400MPa and yield strength is about 390MPa, which can withstand large pressure and bending stress, and has good fatigue resistance.Q390D high tensile steel plate has good plasticity and machinability, and it can be bent, welded, cut, drilled and other processing operations. Its excellent processing performance can reduce the processing cost and improve the production efficiency.Q390D high tensile steel plate can improve its corrosion resistance and prolong the service life by surface treatment technology, such as galvanizing and spraying. In some harsh environments, such as marine, chemical and other areas, the use of Q390D high tensile steel plate can effectively reduce corrosion and rust problems.
Q390D Steel Stock In Warehouse
2: Q390D Quality Standard
EN10025-2 2005-ENG Hot rolled products of structural steel.pdf
3: Q390D Steel Equivalent
| Country | China | Japan | Germany |
| Standard | GB/T 1591 | JIS G3135 | DIN (W-Nr.) EN 10025-2 |
| Grade | Q390D | / | / |
4: Q390D Steel Chemical Composition
| Grade | C | Si | Mn | P | S | Nb | V |
| Q390D | 0.20 | 0.50 | 1.70 | 0.030 | 0.025 | 0.07 | 0.20 |
5: Q390D Steel Mechanical Properties
The mechanical properties mainly include tensile strength, yield strength, elongation, area or reduction, hardness, impact value, non-metalic inclusion etc. Different heat treatment, the mechanical properties will be different, such as normalized, tempered, QT. If you want to know the properties, kindly contact the salesman.
6: Q390D Steel Overviews
| Size | Round | Dia 6-1200mm |
| Plate/Flat/Block | Thickness 6mm-500mm | |
| Width 20mm-1000mm | ||
| Heat treatment | Normalized ; Annealed ; Quenched ; Tempered | |
| Surface condition | Black; Peeled; Polished; Machined; Grinded; Turned; Milled | |
| Delivery condition | Forged; Hot rolled; Cold drawn | |
| Test | Tensile strength, Yield strength, elongation, area of reduction, impact value, hardness, grain size, ultrasonic test, US inspection, magnetic particle testing, etc. | |
| Payment terms | T/T;L/C;/Money gram/ Paypal | |
| Trade terms | FOB; CIF; C&F; etc.. | |
| Delivery time | 30-45 days | |
7: Q390D Steel Application
Q390D high strength steel plate is widely used in construction, bridge, ship, automobile, machinery and other fields. Due to its excellent performance, Q390D high tensile steel plate can replace the traditional low strength steel to improve the safety and reliability of the structure.
8: Q390D Steel Tolerance
Diameter(mm) | Tolerance | ||
Forged Steel Round Bar | 80-600 | Black Surface:0~+5 | Rough Machined or Turned:0~+3 |
650-1200 | Black Surface:0~+15 | Rough Machined or Turned:0~+3 | |
Hot Rolled Steel Round Bar | 16-310 | Black Surface:0~+1 | Peeled:H11 |
Cold Drawn Steel Round Bar | 6-100 | Black Surface:H11 | Peeled:H11 |
9: Delivery Condition
For hot forged bar, usually the delivery condition is hot forged, annealed rough turned/Black surface.
For hot rolled bar, usually the delivery condition is hot rolled, annealed, Black surface.
For hot forged plate, usually the delivery condition is hot forged, annealed, milled surface.
For hot rolled plate, usually the delivery condition is hot rolled, annealed, black surface.
