Thabiso Steel, located in Cape Town, South Africa, has earned a solid reputation as a reliable manufacturer and supplier of top-notch High Strength Steel Sheets and Plates. With a strong focus on excellence and innovation, this company delivers products that are specifically engineered to perform exceptionally well in tough structural and industrial settings. Thabiso Steel’s High Strength Steel Sheets and Plates are built to handle heavy loads, endure extreme pressures, and resist harsh environmental conditions. Thanks to cutting-edge production technology and rigorous quality control, the company guarantees durability, precision, and consistency, making it a go-to partner for clients in the construction, engineering, and manufacturing industries.
These High Strength Steel Sheets and Plates are mainly made up of iron, carbon, manganese, and micro-alloying elements like niobium, vanadium, and titanium, which boost their strength and toughness. They showcase impressive yield and tensile strength, excellent weldability, and outstanding resistance to fatigue and impact. The mechanical properties include high tensile strength ranging from 500 to 1200 MPa, enhanced elongation, and remarkable toughness at various temperatures, ensuring they deliver long-lasting performance and reliability in structural and heavy-duty applications.
| Item | High Strength Steel Plate |
| Material | 450 Yield ,A36 ,A516 ,A572 , A573 ,A588 , A606 ,A709 Grade 50 ,A871 Grade 65 ,AASHTO M270 ,CSA G40.21 ,Hot Rolled Steel Plate,PVQ A283 ,PVQ A285 ,SAILMA Grade 350 HI , SAILMA Grade 450 HI |
| Thickness | 6-300mm |
| Width | 900-4100mm |
| Length | 3000-25000mm |
| Type | Steel Plate |
| S | Cr | P | Al | C | Ni | Si | Mo | Mn |
|---|---|---|---|---|---|---|---|---|
| 0.005 max | 1.50 max | 0.0.20 max | 0.015 max | 0.20 max | 2.0 max | 0.80 max | 0.70 max | 1.70 max |
| Thickness milimeter | Rm MPa | Re MPa | A % |
|---|---|---|---|
| < 50 | 770 – 940 | 690 | 14 |
| > 50 ? 100 | 760 – 930 | 650 | 14 |
| > 100 | 710 – 900 | 630 | 14 |
| grade | DENSITY | (MPA)YIELD STRENGTH |
|---|---|---|
| water quenched 480 °C (900 °F), temper 855 °C (1570 °F) AISI 4130 | 7.85 G/CM³ | 951 |
| clear cast sheet (PMMA), Acrylic | 1.16 G/CM³ | 72 |
| Steel, high strength alloy ASTM A514 | 7.8 G/CM³ | 690 |
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
|
Grade
|
Nominal Thickness t (mm)
|
||
|
3 ≤ t ≤ 50
|
50 < t ≤ 100
|
100 < t ≤ 150
|
|
|
Minimum yield strength ReH, MPa
|
|||
|
S460Q
|
460
|
440
|
400
|
|
S500Q
|
500
|
480
|
440
|
|
S550Q
|
550
|
530
|
490
|
|
S620Q
|
620
|
580
|
560
|
|
S690Q
|
690
|
650
|
630
|
|
S890Q
|
890
|
830
|
|
|
S960Q
|
960
|
|
|
|
|
Tensile strength Rm, MPa
|
||
|
S460Q
|
550-720
|
500-670
|
|
|
S500Q
|
590-770
|
540-720
|
|
|
S550Q
|
640-820
|
590-770
|
|
|
S620Q
|
700-890
|
650-830
|
|
|
S690Q
|
770-940
|
760-930
|
710-900
|
|
S890Q
|
940-1100
|
880-1100
|
|
|
S960Q
|
980-1150
|
|
|
|
Quality
|
Test Temperature °C
|
|||
|
-20
|
-40
|
-50
|
-60
|
|
|
M
|
40J
|
|
|
|
|
ML
|
|
|
27J
|
|
|
Q
|
30J
|
|
|
|
|
QL
|
|
30J
|
|
|
|
QL1
|
|
|
|
30J
|
You’ll find High Strength Steel Sheets and Plates being utilized across a wide range of industries, thanks to their exceptional mechanical performance and durability. They’re commonly used in construction for bridges, buildings, and high-rise structures, as well as in the manufacturing of heavy machinery, cranes, trucks, and trailers. In the automotive industry, these plates help to lighten vehicles while keeping their structural integrity intact. Additionally, they play a crucial role in mining equipment, shipbuilding, and pressure vessels, where a strong strength-to-weight ratio and corrosion resistance are vital for safety and efficiency.
ThabisoSteel is a leading manufacturer, supplier and exporter of high-quality Carbon Steel, Alloy Steel, Mild Steel and Galvanized Steel products. Our extensive product range includes Pipes, Tubes, Flanges, Pipe Fittings, Forged Fittings, Sheets and Plates, catering to various industries in Cape Town, South Africa.
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