Thabiso Steel, a reputable manufacturer and supplier located in Cape Town, South Africa, specializes in high-quality S420MC Sheets and Plates that are celebrated for their exceptional strength, durability, and weldability. These products are crafted in line with international standards, guaranteeing reliable performance across a range of industrial applications. Thabiso Steel is dedicated to providing precision-engineered S420MC materials tailored to the needs of the automotive, construction, and engineering industries. With a strong emphasis on reliability, quality assurance, and prompt delivery, Thabiso Steel has established itself as a top choice for premium-grade steel solutions throughout South Africa and beyond.
The S420MC Sheets and Plates are made from low-alloy, high-strength steel, incorporating elements like carbon, manganese, phosphorus, sulfur, and micro-alloying additions such as niobium, titanium, and vanadium. These elements work together to boost strength and toughness. The material boasts a minimum yield strength of 420 MPa, along with excellent formability, weldability, and fatigue resistance. Thanks to its fine-grain structure and consistent mechanical properties, S420MC plates are perfect for applications that require high load-bearing capacity and a long service life.
Width:Â 500-3000mm
Thickness :Â 3-130mm
Length:Â 1000-12000mm
Heat Treatment:Â N, Q+T
Surface Paint:Â EP, PE, HDP, SMP, PVDF
| Hardened 400 Chemical Composition (%) | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Plate | C | Si | Mn | P | S | Cr | Ni | Mo | B | CEV | CET |
| thickness mm | max % | max % | max % | max % | max % | max % | max % | max % | max % | typv | typv |
| 3- 6 | 0.15 | 0.70 | 1.60 | 0.025 | 0.01 | 0.50 | 0.25 | 0.25 | 0.004 | 0.41 | 0.28 |
| 3-（8） | 0.15 | 0.70 | 1.60 | 0.025 | 0.01 | 0.30 | 0.25 | 0.25 | 0.004 | 0.33 | 0.23 |
| 8 – 20 | 0.15 | 0.70 | 1.60 | 0.025 | 0.01 | 0.50 | 0.25 | 0.25 | 0.004 | 0.37 | 0.27 |
| （20）-32 | 0.18 | 0.70 | 1.60 | 0.025 | 0.01 | 1.00 | 0.25 | 0.25 | 0.004 | 0.48 | 0.29 |
| （32）-45 | 0.22 | 0.70 | 1.60 | 0.025 | 0.01 | 1.40 | 0.50 | 0.60 | 0.004 | 0.57 | 0.31 |
| （45）-51 | 0.22 | 0.70 | 1.60 | 0.025 | 0.01 | 1.40 | 0.50 | 0.60 | 0.004 | 0.57 | 0.38 |
| （51）-80 | 0.27 | 0.70 | 1.60 | 0.025 | 0.01 | 1.40 | 1.00 | 0.60 | 0.004 | 0.65 | 0.41 |
| （80）-130 | 0.32 | 0.70 | 1.60 | 0.025 | 0.01 | 1.40 | 1.50 | 0.60 | 0.004 | 0.73 | 0.48 |
| Mechanical properties of Hardened 400 | |||||
|---|---|---|---|---|---|
| Grade | Mechanical Property | Charpy V Impact Test | |||
| HARDOX 400 | Yield | Tensile | Elongation | Degree | longitudinal |
| Min Mpa | Mpa | Min % | -40 | J | |
| 1000 | 1250 | 10 | 45 | ||
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
| Thickness (mm) | Product | Hardness Range (HBW) |
|---|---|---|
| 2.5 – 6.4 | Cut Lengths | 360 – 420 |
| 5 – 15 | Heavy Plates | 360 – 420 |
| 15- 30 | Heavy Plates | 360 – 450 |
| 30 – 60 | Heavy Plates | 360 – 480 |
These S420MC Sheets and Plates find extensive use in industries that demand strong yet lightweight materials. Typical applications include structural components in automotive frames, chassis, and truck bodies, as well as in construction machinery, cranes, and bridges. Their impressive strength-to-weight ratio makes them ideal for energy-efficient designs and high-performance engineering projects. Additionally, these plates are employed in agricultural equipment, pressure vessels, and load-bearing frameworks where high mechanical reliability and precision are crucial for operational efficiency and safety.
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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