Grade D Inverted Angle Stockist and Supplier in Dubai, UAE
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Stolt Steel, located in Dubai, UAE, specializes in providing top-notch shipbuilding structural products, particularly Grade D inverted angle, designed for the rigorous demands of marine and offshore projects. As a knowledgeable supplier familiar with classification-society standards, they offer hot-rolled inverted-angle steel sections of Grade D, guaranteeing consistency, toughness, and reliability for ship hull framing, structural reinforcement, and support components. Their offerings include a range of leg sizes and thicknesses to cater to diverse shipyard needs, along with the necessary documentation and mill certification to uphold marine and offshore construction quality standards.
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What is Grade D Inverted Angle?
Grade D inverted-angle steel adheres to the chemical specifications of Grade D ship-structural steels: carbon ≤0.21%, silicon ≤0.35%, manganese around 0.60–1.20%, and both phosphorus and sulfur capped at ≤0.035%, with aluminium at least 0.015% for deoxidation. On the mechanical side, Grade D steel boasts a minimum yield strength of 355 MPa, tensile strength between 490–620 MPa, and an elongation of at least 20%, along with confirmed impact toughness (like Charpy-V tests at –20 °C) to ensure structural integrity in marine and low-temperature settings.
Grade D Inverted Angle Specifications
| Carbon (C) — max | ≤ 0.21% |
| Silicon (Si) — max | ≤ 0.35% |
| Manganese (Mn) — typical / min | 0.60 – 1.20% |
| Phosphorus (P) — max | ≤ 0.035% |
| Sulfur (S) — max | ≤ 0.035% |
| Aluminum (Al, if deoxidized) — min | ≥ 0.015% |
| Yield Strength (Re, min) | ≥ 235 MPa |
| Tensile Strength (Rm) | 400 – 520 MPa |
| Elongation (A%) | ≥ 22% |
| Impact Toughness (Charpy V‑notch) | Tested at –20 °C; energy varies with thickness |
| Typical Forms / Sizes | Unequal‑leg / inverted angles; various leg sizes and thicknesses |
| Delivery / Treatment | Hot‑rolled, control‑rolled / as‑rolled; mill-certified for marine use |
Grade D Inverted Angle Chemical Compositions
| Carbon (C) — max | ≤ 0.21% |
| Silicon (Si) — max | ≤ 0.35% |
| Manganese (Mn) — typical / min | 0.60 – 1.20% |
| Phosphorus (P) — max | ≤ 0.035% |
| Sulfur (S) — max | ≤ 0.035% |
| Aluminum (Al, if deoxidized) — min | ≥ 0.015% |
Grade D Inverted Angle Equivalent Grades
| American / ASTM | ASTM A131 Grade D, ASTM A36 (for general structural mild steel) |
| British / BS | BS 4360 Grade 50B (older) / BS EN 10025 S355JR (approximate) |
| Japanese / JIS | JIS G3101 SS400, sometimes SM400C |
| Chinese / GB | GB/T 700 Q235C, GB/T 1591 Q345C (depending on thickness and strength) |
| European / EN | EN 10025 S355JR / S355JO (for mild structural steel) |
| German / DIN | DIN 17100 St52-3 |
| Classification Society | Recognized as ABS Grade D, DNV Grade D, LR Grade D, BV Grade D (for angles / plates) |
If You Are Looking To Buy High Quality Pipes, Sheet, Angle, Hollow Section, Flat Product.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
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Stolt Steels is the largest stockist of Grade D Inverted Angle in Dubai, UAE.
Stolt Steels is a trusted stockist, stockist, and supplier of premium-quality steel products in Dubai, UAE, serving diverse industrial sectors with reliable materials and timely delivery. With a strong commitment to excellence, we offer a wide range of pipes, sheets, plates, and other metal solutions designed to meet global standards. Our extensive inventory, expert support, and customer-focused approach make us a preferred partner for companies seeking durable and high-performance steel products. For inquiries or orders, contact us at sales@stoltsteels.com.
Types of Grade D Inverted Angle
Uses of Grade D Inverted Angle
Grade D inverted-angle steel is widely utilized in shipbuilding and offshore structural applications, particularly for hull frames, stiffeners, deck supports, bulkheads, and other structural elements that require greater strength and toughness than standard angle steels. It’s particularly well-suited for vessels operating in coastal or colder waters, as well as for marine and offshore installations where low-temperature impact resistance, weldability, and load-bearing capacity are essential. Additionally, it plays a vital role in constructing small to medium-sized ships and structural frameworks for offshore platforms, ensuring long-lasting durability and safety even under heavy loads and challenging marine conditions.
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