EN 1.0570 High Manganese, Quality Steel Tube,Pipe

EN 1.0570 High Manganese, Structural, Hot Rolled, Quality Steel Tube Product Information -:- For detailed product information, please contact sales. -: EN 1.0570 High Manganese, Structural, Hot Rolled, Quality Steel Tube Synonyms -:- For detailed product information, please contact sales. -:

EN 1.0570 High Manganese, Structural, Hot Rolled, Quality Steel Product Information -:- For detailed product information, please contact sales. -: **Product Name:** EN 1.0570 (S355) Structural Steel, Hot Rolled, Quality Grade **Overview:** EN 1.0570 is a **high-manganese, non-alloy structural quality steel** designed for applications demanding superior strength and toughness compared to S275 grades. It is defined under the primary European standard for structural steels and corresponds to the **S355** strength class. The "high manganese" specification indicates an intentionally elevated manganese content, which significantly enhances the steel's strength, hardenability, and impact toughness without moving into low-alloy classifications. This grade represents an optimal balance of performance, weldability, and cost for demanding structural applications and is supplied in the hot-rolled condition. **Key International Standards:** * **Primary Standard:** **EN 10025-2:2019** - Hot rolled products of structural steels - Part 2: Technical delivery conditions for non-alloy structural steels. * **Grade Designation:** The material number 1.0570 refers specifically to a **high-manganese variant within the S355 grade**. * **Quality Designation:** The standard offers several toughness qualities. For this grade, the most common and relevant specifications are: * **S355J0:** Impact tested at **0°C**. * **S355J2:** Impact tested at **-20°C**. * **S355K2:** Impact tested at **-20°C** with additional requirements for fine grain practice and higher toughness. The required quality (e.g., **S355J2**) must be explicitly ordered. * **Equivalents & Comparisons:** * **ASTM:** **ASTM A572 Grade 50** is a close mechanical equivalent (min. yield 345 MPa/50 ksi), though chemistry differs. * **JIS:** SM490A/B/C. * **GB/T:** Q355B/C/D (China's direct equivalent to S355, with matching quality grades). * **ISO:** ISO 630-2:2021 (Structural steels – Part 2: Technical delivery conditions for hot-rolled structural steel products). **Chemical Composition (Ladle Analysis, % by weight, typical maximum values or range):** The higher Mn and controlled C define its performance. * **Carbon (C):** ≤ **0.22%** (Content is controlled to balance strength and weldability). * **Manganese (Mn):** **≤ 1.60%** (Key feature: This elevated upper limit distinguishes it from standard S355 compositions, contributing to strength and hardenability). * For thicknesses > 40 mm, a minimum Mn content (e.g., ≥ 1.00% to 1.20%) is typically required. * **Phosphorus (P):** ≤ **0.035%**. * **Sulphur (S):** ≤ **0.035%**. * **Nitrogen (N):** ≤ **0.018%** (lower than in some grades for improved toughness). * **Silicon (Si):** ≤ **0.55%**. * **Carbon Equivalent (CET or CEV):** Typically in the range of **0.40 - 0.45%**. This is a critical parameter for welding procedure development. **Physical & Mechanical Properties (for hot-rolled condition, typical for thicknesses ≤ 16 mm):** * **Yield Strength (ReH):** ≥ **355 MPa** (Minimum for thickness ≤ 16 mm; decreases with increasing thickness per standard tables). * **Tensile Strength (Rm):** **470 - 630 MPa**. * **Elongation at Break (A5):** ≥ **21%** (Minimum, for longitudinal test piece). * **Impact Energy (KV):** Varies by ordered quality designation (Longitudinal, Charpy V-notch): * **S355J0:** ≥ **27 J at 0°C**. * **S355J2:** ≥ **27 J at -20°C** (Common for outdoor structures in temperate climates). * **S355K2:** ≥ **40 J at -20°C** (For critical applications with higher toughness demand). * **Density:** **~7.85 g/cm³**. * **Modulus of Elasticity:** **210 GPa**. * **Poisson's Ratio:** **0.3**. * **Shear Modulus:** **~81 GPa**. **Product Features:** 1. **High Strength-to-Weight Ratio:** The 355 MPa minimum yield strength allows for lighter, more efficient structural designs compared to S235/S275 steels, reducing material costs and weight. 2. **Excellent Toughness:** The combination of high manganese and controlled processing (often fine-grain practice for J2/K2) ensures good impact resistance at low temperatures, making it suitable for dynamic and low-temperature service. 3. **Good Weldability (with Procedure):** Weldable with all common methods. However, due to the higher carbon equivalent compared to S235, it requires more careful control of welding parameters, pre-heating (especially for thicker sections and restrained joints), and heat input to avoid hydrogen-induced cracking (HIC). 4. **Favorable Formability & Machinability:** Can be cold formed and machined, though power requirements are higher than for lower-strength steels. **Typical Applications:** EN 1.0570 (S355) is one of the most widely used high-strength structural steels in Europe. * **Heavy Construction:** Primary beams, columns, and trusses in **industrial halls, warehouses, high-rise buildings, and bridges**. * **Crane & Lifting Equipment:** Main booms, jibs, and support structures for mobile, tower, and gantry cranes. * **Offshore & Marine:** Components for **harbor structures, inland waterway vessels, and secondary structures on offshore platforms**. * **Heavy Vehicle & Transportation:** Chassis for **trucks, trailers, railway freight cars, and mining trucks**. * **Energy & Heavy Machinery:** Support structures for **power plants, wind turbine towers (flanges, sections), and frames for heavy presses and machinery**. **Available Forms & Processing:** * **Forms:** Hot-rolled plates, sheets, strips, bars (round, flat), and all common structural sections (HE/HL beams, IPE beams, angles, channels). * **Surface:** Standard with mill scale. Commonly available as shot blasted or primed. * **Processing:** Excellent suitability for cutting, welding, drilling, and cold forming. Normalizing or stress relieving can be specified for complex fabrications or to improve properties in thick sections. --- **Important Note:** The guaranteed mechanical properties, especially **yield strength and impact energy, are thickness-dependent**. For material over 40 mm thick, the minimum yield strength is reduced as specified in EN 10025-2. For critical applications (e.g., seismic, offshore, low-temperature), the **quality grade (J2, K2) and any supplementary requirements (e.g., ultrasonic testing, through-thickness properties - EN 10164)** must be clearly specified in the order. Always refer to the mill's inspection certificate (EN 10204 3.1/3.2) for the actual properties of the supplied material. -:- For detailed product information, please contact sales. -: EN 1.0570 High Manganese, Structural, Hot Rolled, Quality Steel Specification Dimensions Size： Diameter 20-1000 mm Length <5800 mm Size:We can customized as required Standard： Per your request or drawing We can customized as required Properties（Theoretical） Chemical Composition -:- For detailed product information, please contact sales. -: EN 1.0570 High Manganese, Structural, Hot Rolled, Quality Steel Properties -:- For detailed product information, please contact sales. -:

Applications of EN 1.0570 High Manganese, Structural, Hot Rolled, Quality Steel Tube -:- For detailed product information, please contact sales. -: Chemical Identifiers EN 1.0570 High Manganese, Structural, Hot Rolled, Quality Steel Tube -:- For detailed product information, please contact sales. -:

Packing of EN 1.0570 High Manganese, Structural, Hot Rolled, Quality Steel Tube -:- For detailed product information, please contact sales. -: Standard Packing: -:- For detailed product information, please contact sales. -: Typical bulk packaging includes palletized plastic 5 gallon/25 kg. pails, fiber and Steel Tube drums to 1 ton super sacks in full container (FCL) or truck load (T/L) quantities. Research and sample quantities and hygroscopic, oxidizing or other air sensitive materials may be packaged under argon or vacuum. Solutions are packaged in polypropylene, plastic or glass jars up to palletized 2271 gallon liquid totes Special package is available on request. E FORUs’ is carefully handled to minimize damage during storage and transportation and to preserve the quality of our products in their original condition