EN S355J0C High Manganese, Quality Steel Tube,Pipe

EN S355J0C High Manganese, Structural, Hot Rolled, Quality Steel Tube Product Information -:- For detailed product information, please contact sales. -: EN S355J0C High Manganese, Structural, Hot Rolled, Quality Steel Tube Synonyms -:- For detailed product information, please contact sales. -:

EN S355J0C High Manganese, Structural, Hot Rolled, Quality Steel Product Information -:- For detailed product information, please contact sales. -: # **Product Name:** EN S355J0C Structural Steel for Cold Forming, Hot Rolled, Quality Grade **Overview** EN S355J0C is a **specialized non-alloy structural steel** defined under EN 10025-2, belonging to the S355 strength category. This grade is engineered for a dual purpose: it provides **guaranteed impact toughness at 0°C (J0)** while also featuring a **chemical composition explicitly optimized for superior cold formability (C designation)**. It is the ideal choice for fabricating complex, high-strength components through processes like press-braking, roll-forming, or stamping, where the finished part must also perform reliably in environments with temperatures at or near freezing. The "C" suffix is critical and mandates stricter chemical controls. It is **not a "High Manganese" steel**; its premium is derived from enhanced formability and toughness. **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 Decoding:** **S355J0C** * **S:** Structural Steel. * **355:** Minimum yield strength in MPa (for thickness ≤ 16mm). * **J0:** Quality designation, guaranteeing impact energy at **0°C**. * **C:** **Crucial supplementary designation** for **steels intended for cold forming**. This requires tighter limits on phosphorus and sulphur. * **Core Concept:** This is a **dual-qualified, fabrication-oriented steel**. It is not simply S355J0; the "C" requires a cleaner chemistry, making it specifically suitable for aggressive cold working without cracking. * **Clarification on "High Manganese":** This is **incorrect and misleading**. The manganese content is standard for the S355 class (≤1.60%). Its defining features are **guaranteed 0°C toughness and certified cold formability**, not elevated alloy content. * **Equivalents:** No direct global equivalent exists for the specific EN "C" classification. The closest comparison would be a **cold-forming grade of ASTM A572 Grade 50 with supplemental Charpy V-notch requirements at 32°F (0°C)**. **Chemical Composition (Ladle Analysis, % by weight, per EN 10025-2 for 'C' grades)** Chemistry is tailored for high strength, ductility, and toughness. * **Carbon (C):** ≤ **0.20%** (Often at the lower end of the range to aid formability and weldability). * **Manganese (Mn):** ≤ **1.60%** (Standard for S355, not elevated). * **Phosphorus (P):** ≤ **0.030%** (**Key Differentiator** - Tighter than the 0.035% limit for standard S355J0. Critical for preventing cold cracking during forming). * **Sulphur (S):** ≤ **0.030%** (**Key Differentiator** - Tighter than the 0.035% limit for standard S355J0. Improves edge ductility and surface quality). * **Silicon (Si):** ≤ **0.55%**. * **Nitrogen (N):** ≤ **0.018%**. * **Carbon Equivalent (CEV):** Typically ~0.40-0.44%. While significant for welding, the "C" grade's clean chemistry helps mitigate cracking risks. **Physical & Mechanical Properties (for hot-rolled condition, thickness ≤ 16mm)** * **Yield Strength (ReH):** ≥ **355 MPa** (Minimum for t ≤ 16mm; decreases with thickness). * **Tensile Strength (Rm):** **470 - 630 MPa**. * **Elongation at Break (A5):** ≥ **21%** (Minimum, typically good due to favorable chemistry). * **Impact Energy (KV):** **≥ 27 J at 0°C** (Longitudinal, Charpy V-notch). * **Cold Formability:** **Excellent.** The primary feature. Certified to withstand severe cold deformation (tight-radius bending, deep drawing, roll-forming) with a **significantly reduced risk of edge or bend cracking** compared to standard S355J0. * **Density:** **~7.85 g/cm³**. * **Modulus of Elasticity:** **210 GPa**. **Product Features** 1. **Superior Cold Formability (Primary Feature):** The "C" chemistry ensures the material can be extensively cold-worked into complex, high-strength shapes without failure, enabling innovative designs and reducing scrap rates. 2. **Guaranteed Low-Temperature Toughness:** The **J0** quality provides reliable impact resistance for components that will serve in outdoor or cold storage environments (down to 0°C). 3. **Good Weldability (with Controlled Procedures):** Maintains good weldability, but the higher CEV necessitates proper procedure. Pre-heating is recommended for thicker sections (>30mm) and restrained joints, especially after cold working which can induce stresses. 4. **Optimal for Fabrication Sequences:** Perfect for applications where the manufacturing process is: **Cut → Cold Form (severely) → Weld Assembly**. **Typical Applications** S355J0C is specified for cold-formed components requiring S355 strength that must endure cold climates. * **Commercial Vehicle & Trailer Manufacturing:** **Cold-formed structural brackets, chassis cross-members, and high-strength body reinforcements** for trucks and trailers operating in temperate climates. * **Construction & Heavy Equipment:** **Cold-rolled or press-braked profiles for structural frames, access platforms, and machinery guards** used in outdoor industrial settings. * **Material Handling Equipment:** **Heavy-duty racking components, conveyor frames, and forklift parts** that are formed and used in cold storage or outdoor logistics centers. * **Agricultural & Forestry Machinery:** **Formed structural parts and protective cabs** for equipment used in variable weather conditions. * **General Heavy Fabrication:** Any high-strength component requiring **both a complex cold-formed shape and certified 0°C impact toughness**. **Available Forms & Processing** * **Forms:** Most commonly supplied as **hot-rolled sheet and strip** (in coils or cut lengths), and **plates**. Also available as flat bar. * **Surface:** Often supplied as **pickled and oiled (PO)** to remove mill scale, which is critical for optimal cold forming performance, tool life, and surface finish. * **Processing:** **Exceptionally suited for press-brake bending, roll-forming, and stamping.** Standard cutting and welding methods apply, with attention to heat input. --- **Critical Procurement Note** * **Must Specify "C":** It is imperative to specify the full designation **"S355J0C"**. An order for "S355J0" will result in standard material, which is far more prone to cracking during aggressive forming. * **Temperature Limit:** The J0 quality is validated for **0°C**. For service temperatures consistently below -10°C, a grade with J2 quality (e.g., **S355J2C**) should be considered. * **Thickness-Strength Relationship:** Mechanical properties are thickness-dependent. Confirm the applicable minimum yield strength for the ordered thickness from EN 10025-2 tables. * **Not "High Manganese":** This term is erroneous. The correct description is **"Cold-Formable Quality Structural Steel (S355) with 0°C Toughness."** * **Design Advantage:** Allows designers to utilize the high strength of S355 in complex cold-formed sections, enabling significant weight savings or performance gains over lower-strength formable steels. -:- For detailed product information, please contact sales. -: EN S355J0C High Manganese, Structural, Hot Rolled, Quality Steel Specification Dimensions Size： Diameter 20-1000 mm Length <5832 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 S355J0C High Manganese, Structural, Hot Rolled, Quality Steel Properties -:- For detailed product information, please contact sales. -:

Applications of EN S355J0C High Manganese, Structural, Hot Rolled, Quality Steel Tube -:- For detailed product information, please contact sales. -: Chemical Identifiers EN S355J0C High Manganese, Structural, Hot Rolled, Quality Steel Tube -:- For detailed product information, please contact sales. -:

Packing of EN S355J0C 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 2303 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