Common size on stock, Special sizes needs new production.Can cut to Size, Cut to Shape.
EMERSONMETAL
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DIN17102 StE500 E550DD E550E high strength hot rolled steel plates are manufactured to meet the requirements of DIN 17102 standards. These plates provide reliable performance for users in diverse industries due to their consistent quality and robust mechanical properties. They are widely recognized for their strength, making them suitable for large-scale industrial projects.
These high strength steel plates are produced using advanced hot rolling processes to ensure uniform thickness and surface quality. With thickness options ranging from 10mm to 750mm and widths up to 3700mm, these plates are versatile and can be tailored to specific project needs. Their ability to maintain mechanical properties across a wide range of thicknesses ensures durability and dependability.
DIN17102 StE500 high strength steel plate and DIN17102 E550DD high strength steel plate are specifically designed to meet the demands of structural and industrial applications. These plates can be delivered in various heat treatment conditions such as Q+T (quenched and tempered) or TMCP (thermomechanically rolled). They are also available in custom dimensions to suit the needs of unique applications.
DIN17102 E550E steel sheets and other grades in the DIN17102 family are highly valued for their ability to meet technical property requirements. They are frequently used as essential metal raw materials in projects that require high levels of strength and stability. These hot rolled steel sheets are trusted for their reliability in applications where performance under stress is critical.
We supply high-strength hot-rolled steel plates conforming to DIN 17102 and related weldable fine-grain structural steel specifications, covering grades StE500, E550DD, and E550E. These normalized or thermomechanically rolled plates offer a minimum yield strength of 500 MPa, combined with excellent toughness, superior weldability, and good cold-forming properties. They are engineered for demanding load-bearing structures in heavy machinery, bridge construction, pressure equipment, and offshore engineering where weight reduction and high structural integrity are critical.
The standard DIN 17102 specifies technical delivery conditions for hot-rolled products (including flats, profiles and bars) of weldable fine-grained structural steels.
StE500 E550DD E550E Chemical Composition and Technical Property is as below:
Standard | C % max | Si max | Mn max | P max | S max | Cr max | Ni max | tensile strength（MPa） | yield strength（MPa） | Elongation% |
StE500 | 0.21 | 0.1-0.6 | 1-1.7 | 0.035 | 0.03 | 0.3 | 1 | ≥721 | 520-760 | 23 |
E550DD | 0.2 | 0.1-0.8 | 1.7 | 0.035 | 0.035 | 2 | 2 | ≥225 | ≥675 | 11 |
E550E | 0.2 | 0.1-0.8 | 1.7 | 0.035 | 0.035 | 2 | 2 | ≥587 | ≥341 | 42 |
DIN17102 StE500 steel plates offer high yield strength, ensuring stability in demanding structural applications. They are widely used in constructing bridges, warehouses, and high-rise buildings where load-bearing capacity is essential. This makes them a reliable choice for critical infrastructure projects.
E550DD high strength steel plates are essential for producing heavy-duty machinery and equipment. They are commonly utilized in mining vehicles, bulldozers, excavators, and other engineering machines that endure high stress and wear. These steel sheets deliver the durability required for continuous heavy operations.
E550E steel plates are designed to perform in harsh marine and offshore conditions. They are used in constructing offshore platforms, ships, and subsea equipment due to their ability to resist corrosion and maintain structural integrity in saltwater environments.
These hot rolled steel sheets are vital for energy projects, including wind towers, pressure vessels, and oil and gas rigs. Their high strength and ability to withstand environmental stress make them indispensable for power generation and resource extraction industries.
DIN17102 E550DD steel plates are ideal for manufacturing vehicle frames, beams, and heavy-duty transport components. Their high strength-to-weight ratio ensures enhanced performance and reduced weight, making them suitable for the automotive and transportation industries.
E550E high strength steel plates are specifically designed to maintain toughness in low-temperature settings. They are used in cryogenic storage tanks and other applications that require consistent performance in cold climates.
DIN17102 StE500 E550DD E550E steel plates are versatile and durable, making them suitable for a wide range of industries. Whether for construction, marine platforms, heavy machinery, or energy production, these high strength hot rolled steel sheets are a dependable material for challenging applications.
Q: What is the difference between StE500, E550DD, and E550E?
A: StE500 is a 500 MPa yield strength normalized fine-grain steel optimized for general welded construction. E550DD and E550E are 550 MPa grades with higher strength, suitable for more demanding load-bearing structures. The suffix letters indicate toughness and processing requirements: E550DD typically guarantees impact toughness at -20 °C, while E550E offers enhanced low-temperature performance, often tested at -40 °C or below, making it ideal for offshore and arctic applications.
Q: Does your company offer cutting and machining services for these high-strength steel plates?
A: Yes. We are equipped with laser cutting machinery capable of processing high-strength steel up to 150 mm thick. In addition, we offer edge chamfering, drilling, milling, as well as sandblasting and primer coating services. Please send us your CAD drawings or sketches so that we can provide you with a bespoke quotation for the machining work.
Q: Can these high-strength grades be welded without preheating?
A: Generally yes, within certain thickness limits. Due to their fine-grain microstructure and controlled carbon equivalent (CE), StE500 and the E550 series exhibit good weldability. For thicknesses up to 20–30 mm, welding can often be performed without preheating under normal restraint conditions. For thicker plates, high-hydrogen processes, or highly restrained joints, mild preheating to 50–150 °C is recommended to avoid cold cracking. Always follow a qualified Welding Procedure Specification (WPS).
