Hot rolled patterned steel plates and strips
Hot-rolled patterned steel plates and strips feature a regular raised pattern on their surface. They combine anti-slip properties, load-bearing capacity, and decorative appeal, making them widely used in construction, transportation, machinery manufacturing, and other fields. The patterns come in a variety of shapes, with common ones including diamond, lentil, round bean, and checkered. Different patterns offer varying anti-slip effects, with diamond patterns offering the highest anti-slip coefficient, making them suitable for applications requiring the most demanding anti-slip properties. Plate thickness typically ranges from 2-12mm, while strip thickness ranges from 1-6mm. Widths can reach up to 2000mm, and they can be cut or coiled to suit specific needs. Compared to cold-rolled patterned plates, hot-rolled patterned steel plates and strips offer higher strength (tensile strength 375-500MPa), improved wear resistance, and a more competitive price, making them suitable for outdoor and heavy-duty environments.
The production process of hot-rolled patterned steel plates and strips centers on hot rolling, requiring precise control of pattern roller pressure and rolling parameters. First, a billet made of carbon structural steels such as Q235 and Q355, or low-alloy high-strength steel, is heated in a furnace to 1100-1200°C to ensure excellent ductility. The heated billet then enters the hot rolling mill, where it is rolled over patterned work rolls. The concave and convex patterns on the patterned rolls create a corresponding pattern on the steel plate. During the rolling process, the rolling pressure (1000-3000 kN) and rolling speed (1-5 m/min) must be carefully controlled to ensure a clear, full pattern with a uniform depth (typically 0.5-2 mm). After rolling, the strip is coiled, with coil weights ranging from 10 to 30 tons. The plates are straightened, cut to length, and finally tested for hardness and anti-slip properties to ensure product quality.
In the industrial and transportation sectors, hot-rolled patterned steel plates are the preferred material for anti-slip platforms. Diamond-patterned steel plates are used on operating platforms and stair treads in factory workshops to effectively prevent workers from slipping. The use of 6mm-thick patterned steel plates in the assembly workshop of a heavy machinery plant has reduced accidental slips by 80%. Loading and unloading platforms in logistics warehouses are paved with lentil-shaped patterned steel plates, which increase friction between forklift tires and the platform, preventing slipping during loading and unloading. Test data from a logistics center showed that the use of patterned steel plates increased forklift operating efficiency by 15%. In the transportation sector, lentil-shaped patterned steel plates are used on bus and subway treads, which are both anti-slip and reduce noise when passengers board and exit. After the retrofit, a bus company saw a 25% increase in passenger satisfaction.
Hot-rolled patterned steel plates and strips are widely used in construction and municipal engineering. The treads of exterior scaffolding are made of 3-5mm thick patterned steel plates, which can withstand the weight of construction workers and materials while remaining non-slip in rainy weather. One construction project saw a 60% reduction in scaffolding accidents after adopting this material. Municipal engineering manhole covers and drain covers are made of patterned steel plates. The checkered pattern on the surface is not only non-slip but also enhances the structural strength of the covers. After replacing the manhole covers on a certain city road with patterned steel plates, their service life was extended from two years to over five years. In parking lot paving, patterned steel strips are rolled and spliced to create a large, non-slip surface suitable for frequent vehicle traffic. After adopting this solution in a commercial plaza parking lot, vehicle skidding accidents have been reduced to zero.
With increasing awareness of anti-slip safety, the performance of hot-rolled patterned steel plates and strips is continuously being optimized. Manufacturers have developed high-strength patterned steel plates (Q460 material), suitable for anti-slip countertops on large equipment. With a yield strength exceeding 460 MPa, this increases load-bearing capacity by 30%. For cold regions, low-temperature-resistant patterned steel plates have been developed, with an impact energy of ≥34J at -40°C, to prevent low-temperature brittle fracture. In terms of environmental protection, scrap steel recycling and smelting processes are being used to reduce raw material consumption. One steel company’s patterned steel plate production line has achieved a scrap steel utilization rate of 90%. In the future, as smart city and industrial safety standards improve, patterned steel plates will develop towards customized patterns and higher anti-slip coefficients, providing safety assurance for a wider range of scenarios.
