EN S355J0 High Manganese, Quality Steel Capillary

EN S355J0 High Manganese, Structural, Hot Rolled, Quality Steel Capillary Product Information -:- For detailed product information, please contact sales. -: EN S355J0 High Manganese, Structural, Hot Rolled, Quality Steel Capillary Synonyms -:- For detailed product information, please contact sales. -:

EN S355J0 High Manganese, Structural, Hot Rolled, Quality Steel Product Information -:- For detailed product information, please contact sales. -: # **Product Name:** EN S355J0 Structural Steel, Hot Rolled, Quality Grade **Overview** EN S355J0 is a **non-alloy structural quality steel** belonging to the widely used S355 strength category as per EN 10025-2. The "J0" designation guarantees the material's **impact toughness at 0°C**, making it suitable for structures exposed to moderately low temperatures. While S355 steels generally have higher permissible alloy content than lower grades, S355J0 is **not specifically classified as a "High Manganese" steel** in a technical sense. It represents a fundamental and cost-effective quality grade within the high-strength structural steel family, offering an optimal balance of strength, weldability, and low-temperature performance for general engineering. **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 & Quality Designation:** **S355J0** * **S:** Structural Steel * **355:** Minimum yield strength (ReH) in MPa for thickness ≤ 16 mm. * **J0:** Quality designation indicating impact energy testing at **0°C**. * **Clarification on "High Manganese":** This is a **misleading term** for this grade. While the permissible manganese content (≤1.60%) is higher than in S235/S275 grades, it is the standard range for S355. The "High Manganese" label is not an official classification and obscures the grade's primary feature: guaranteed toughness at 0°C. * **Common International Equivalents:** * **ASTM:** **A572 Grade 50** (closest mechanical equivalent, min. yield 345 MPa/50 ksi). * **JIS:** **SM490A**. * **GB/T:** **Q355B**. * **ISO:** **ISO 630-2:2021, Grade E355**. **Chemical Composition (Ladle Analysis, % by weight, maximum values per EN 10025-2)** * **Carbon (C):** ≤ **0.22%** * **Manganese (Mn):** ≤ **1.60%** (This is the standard upper limit for S355, not a special "high" level). * **Phosphorus (P):** ≤ **0.035%** * **Sulphur (S):** ≤ **0.035%** * **Silicon (Si):** ≤ **0.55%** * **Nitrogen (N):** ≤ **0.018%** (for killed steel) * **Carbon Equivalent (CEV):** Typically in the range of **0.40 - 0.45%**. This is a critical parameter for determining appropriate welding procedures, especially for thicker sections. **Physical & Mechanical Properties (for hot-rolled condition, thickness ≤ 16 mm)** * **Yield Strength (ReH):** ≥ **355 MPa** (Minimum, thickness-dependent). * **Tensile Strength (Rm):** **470 - 630 MPa**. * **Elongation at Break (A5):** ≥ **21%** (Minimum, longitudinal test piece). * **Impact Energy (KV):** **≥ 27 J at 0°C** (Longitudinal, Charpy V-notch). This is the defining property of the J0 quality. * **Density:** **~7.85 g/cm³**. * **Modulus of Elasticity:** **210 GPa**. * **Poisson's Ratio:** **0.3**. **Product Features** 1. **High Strength-to-Weight Ratio:** The 355 MPa minimum yield strength allows for lighter and more efficient structural designs compared to S235 and S275 steels. 2. **Guaranteed Low-Temperature Toughness:** Suitable for outdoor structures and dynamically loaded components in climates where temperatures regularly reach **0°C**. 3. **Good Weldability (with Procedure):** Weldable with all common methods. Due to the higher carbon equivalent compared to S235, controlled procedures with pre-heating (per EN 1011) are recommended for thicker sections (>30 mm) and restrained joints to prevent hydrogen-induced cracking. 4. **Favorable Formability:** Can be cold formed and machined, though allowances for its higher strength must be considered. **Typical Applications** S355J0 is one of the most widely used structural steels in Europe for demanding applications. * **Heavy Construction:** Primary beams, columns, and trusses in **industrial buildings, commercial structures, and medium-span bridges**. * **Crane & Lifting Equipment:** **Runway beams, boom sections, and structural parts** for mobile and overhead cranes. * **Heavy Vehicle & Transportation:** **Chassis frames for trucks, trailers, railway wagons, and mining vehicles**. * **Energy & Heavy Machinery:** **Support structures, frames, and bases** for machinery and plant equipment. * **General Engineering:** Any structural component requiring higher strength than S275 and reliable performance at temperatures around freezing. **Available Forms & Processing** * **Forms:** Hot-rolled plates, sheets, strips, bars (round, flat), and all common structural sections (HEA/HEB beams, IPE beams, channels, angles). * **Surface:** Typically supplied with mill scale. Commonly available as shot blasted or primed. * **Processing:** Excellent suitability for cutting, welding, drilling, and cold forming. Normalizing can be specified for complex fabrications or thicker plates. --- **Critical Procurement Note** * **Specify Full Designation:** Always specify **"S355J0"** to ensure the correct toughness quality is supplied. "S355" alone is ambiguous. * **Thickness is Key:** Mechanical properties, especially yield strength, are **thickness-dependent**. For plates >40 mm, the minimum yield strength is reduced as per EN 10025-2 tables. Use the correct value for design. * **Temperature Limit:** The J0 quality is validated for **0°C**. For service temperatures consistently below -10°C or for highly critical/dynamic applications, grades with lower temperature toughness such as **S355J2 (-20°C)** or fine-grained steels (**S355NL/ML**) should be specified. * **Avoid Incorrect Terminology:** **Do not use "High Manganese Steel."** The correct classification is **"Non-Alloy Quality Structural Steel, Grade S355J0."** * **Welding Considerations:** Always reference the carbon equivalent (CEV) when developing welding procedures. Proper technique is crucial for integrity. -:- For detailed product information, please contact sales. -: EN S355J0 High Manganese, Structural, Hot Rolled, Quality Steel Specification Dimensions Size： Diameter 20-1000 mm Length <5831 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 S355J0 High Manganese, Structural, Hot Rolled, Quality Steel Properties -:- For detailed product information, please contact sales. -:

Applications of EN S355J0 High Manganese, Structural, Hot Rolled, Quality Steel Capillary -:- For detailed product information, please contact sales. -: Chemical Identifiers EN S355J0 High Manganese, Structural, Hot Rolled, Quality Steel Capillary -:- For detailed product information, please contact sales. -:

Packing of EN S355J0 High Manganese, Structural, Hot Rolled, Quality Steel Capillary -:- 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 Capillary 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 2302 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