EN 1.0044 High Manganese Carbon Steel Tube,Pipe

EN 1.0044 High Manganese Carbon Steel Tube Product Information -:- For detailed product information, please contact sales. -: EN 1.0044 High Manganese Carbon Steel Tube Synonyms -:- For detailed product information, please contact sales. -:

EN 1.0044 High Manganese Carbon Steel Product Information -:- For detailed product information, please contact sales. -: # **Technical Datasheet: EN 1.0044 (S275J0) High Manganese Carbon Steel** ## **1. PRODUCT OVERVIEW** **EN 1.0044**, commercially designated **S275J0**, is a **high manganese, non-alloy structural steel** offering enhanced strength and guaranteed impact toughness at 0°C. As part of the European EN 10025 standard series, this grade bridges the performance gap between basic S235 steels and higher-strength S355 grades, providing a **cost-effective solution** for applications requiring **improved load-bearing capacity** without the complexity of alloy steel chemistry. Characterized by its **optimized manganese-to-carbon ratio** and **aluminum-killed fine-grained structure**, S275J0 delivers reliable mechanical properties with excellent weldability and formability. The "J0" suffix indicates mandatory **Charpy V-notch impact testing at 0°C**, making it suitable for structural applications in moderate climates where occasional sub-zero temperatures may occur. This grade is typically supplied in **normalized (N) or thermomechanically rolled (TM)** conditions to ensure consistent through-thickness properties. **Key Characteristics:** - **Enhanced Strength:** Minimum 275 MPa yield strength (approximately 17% higher than S235) - **Certified Low-Temperature Toughness:** 27J minimum impact energy at 0°C - **Excellent Fabricability:** Good cold forming and welding characteristics - **Economic Efficiency:** Higher strength-to-weight ratio than S235 without alloy steel premium - **Consistent Quality:** Fine-grained microstructure ensures uniform properties --- ## **2. CHEMICAL COMPOSITION** **Compliance:** EN 10025-2:2019 - Hot rolled products of structural steels | Element | Maximum (%) | Typical Range (%) | Metallurgical Function | |---------|------------|------------------|------------------------| | **Carbon (C)** | **0.21** | 0.14-0.18 | Primary strength contributor; controlled for weldability | | **Manganese (Mn)** | **1.50** | 1.20-1.40 | **Critical strengthener**; enhances hardenability and toughness | | **Phosphorus (P)** | **0.035** | ≤0.025 | Harmful impurity; strictly limited | | **Sulfur (S)** | **0.035** | ≤0.020 | Controlled for improved hot workability | | **Silicon (Si)** | **0.55** | 0.25-0.45 | Deoxidizer; solid solution strengthener | | **Nitrogen (N)** | **0.012** | ≤0.009 | Controlled to prevent aging effects | | **Aluminum, total (Alt)** | — | **≥0.020** (min) | Grain refiner; ensures fine-grained structure | | **Copper (Cu)** *optional* | 0.55 | 0.20-0.35 | May be added for weathering resistance (S275J0W variant) | | **Iron (Fe)** | Balance | Balance | Base metal | **Critical Chemical Parameters:** - **Carbon Equivalent (CEV):** 0.36-0.42% (CEV = C + Mn/6) - **Cracking Parameter (Pcm):** 0.20-0.24% (Pcm = C + Si/30 + Mn/20 + Cu/20 + Ni/60 + Mo/15 + V/10 + 5B) - **Deoxidation Practice:** Fully aluminum-killed, fine-grained steel - **Manganese-to-Carbon Ratio:** Typically 7:1 to 8:1, optimizing strength-toughness balance --- ## **3. PHYSICAL & MECHANICAL PROPERTIES** ### **A. Physical Properties (Typical):** - **Density:** 7.85 g/cm³ - **Modulus of Elasticity (E):** 210 GPa - **Shear Modulus (G):** 81 GPa - **Poisson's Ratio (ν):** 0.30 - **Coefficient of Thermal Expansion:** 12.0 × 10⁻⁶/K (20-100°C) - **Thermal Conductivity:** 50 W/(m·K) at 20°C - **Specific Heat Capacity:** 450 J/(kg·K) - **Electrical Resistivity:** 0.15 μΩ·m ### **B. Standard Mechanical Properties (EN 10025-2):** *Properties vary with product thickness. Values shown for t ≤ 16 mm.* | Property | Symbol | Minimum Value | Test Standard | Condition | |----------|--------|---------------|---------------|-----------| | **Yield Strength** | ReH | **275 MPa** | EN ISO 6892-1 | t ≤ 16 mm | | **Tensile Strength** | Rm | **370-530 MPa** | EN ISO 6892-1 | Must fall within range | | **Minimum Elongation** | A₅ | **22%** | EN ISO 6892-1 | t ≤ 40 mm | | **Impact Energy (0°C)** | KV | **27 J** | EN ISO 148-1 | Longitudinal | ### **C. Thickness-Dependent Properties:** | Thickness Range (mm) | Yield Strength Min (MPa) | Tensile Strength Range (MPa) | Impact Test Requirement | |----------------------|--------------------------|------------------------------|--------------------------| | **t ≤ 16** | 275 | 370-530 | Mandatory at 0°C | | **16 < t ≤ 40** | 265 | 370-530 | Mandatory at 0°C | | **40 < t ≤ 63** | 255 | 360-520 | Mandatory at 0°C | | **63 < t ≤ 80** | 245 | 360-520 | Mandatory at 0°C | | **80 < t ≤ 100** | 235 | 350-510 | Mandatory at 0°C | ### **D. Typical Achieved Properties (t ≤ 40 mm):** | Property | Typical Range | Average | Notes | |----------|---------------|---------|-------| | **Yield Strength** | 285-330 MPa | 305 MPa | Typically 10-20% above minimum | | **Tensile Strength** | 390-460 MPa | 425 MPa | Well within specified range | | **Elongation (A₅)** | 24-30% | 27% | Good ductility maintained | | **Impact Energy (0°C)** | 35-70 J | 50 J | Substantial safety margin | | **Hardness (HB)** | 125-145 | 135 | Balanced for machining | | **Bend Test** | d=2a to 3a | Pass | Depends on rolling direction | --- ## **4. FABRICATION & PROCESSING** ### **A. Forming & Cutting:** - **Cold Bending:** Minimum inside radius = **1.0 × t** (parallel to rolling), **1.5 × t** (perpendicular) - **Hot Forming:** Can be heated to 850-1100°C if required for severe forming - **Cutting Methods:** - Plasma/Laser: Excellent results with proper parameters - Oxy-fuel: Requires care due to higher manganese content - Waterjet: Ideal for complex shapes without thermal effects - Mechanical: Band saws with appropriate blade selection ### **B. Welding Procedures:** **General Guidelines:** - **Preheating:** Recommended for t > 25 mm or highly restrained joints (50-100°C) - **Interpass Temperature:** Maximum 200-250°C - **Heat Input:** 0.8-2.5 kJ/mm for optimal properties **Recommended Consumables:** | Process | Consumable (EN ISO) | AWS Equivalent | Notes | |---------|---------------------|----------------|-------| | **SMAW** | E 42 0 R C 12 | E7018 | Basic coated for toughness | | **GMAW** | G 46 5 M G3Si1 | ER70S-6 | Most common for fabrication | | **FCAW** | T 46 2 P C 1 H5 | E71T-1 | Good for outdoor work | | **SAW** | S 46 2 + basic flux | F7A2-EM12K | For thicker sections | **Welding Characteristics:** - **Weldability Rating:** Good (CEV typically 0.38-0.42) - **HAZ Toughness:** Generally good with proper heat input control - **Crack Sensitivity:** Low with correct procedures ### **C. Machining Parameters:** - **Turning:** 100-150 m/min, feed 0.2-0.4 mm/rev - **Milling:** 80-120 m/min, feed 0.15-0.3 mm/tooth - **Drilling:** 25-40 m/min with peck cycles - **Surface Finish:** Ra 3.2-6.3 μm readily achievable --- ## **5. TYPICAL APPLICATIONS** ### **A. Building & Construction:** - **Medium-Rise Structures:** Columns, beams, and bracing in commercial buildings - **Industrial Buildings:** Portal frames, crane runway beams, mezzanine structures - **Bridges:** Secondary members, deck plating, pedestrian bridges - **Storage Facilities:** Rack-supported buildings, warehouse structures ### **B. Infrastructure Projects:** - **Transportation:** Railway station structures, canopy supports, sign gantries - **Energy Sector:** Wind turbine towers (lower sections), transformer supports - **Water Management:** Gate structures, pumping station buildings, pipe supports - **Communication:** Tower structures, equipment shelters, antenna mounts ### **C. Industrial Equipment:** - **Material Handling:** Conveyor structures, hoist frames, lifting equipment - **Processing Plants:** Platform structures, walkways, equipment supports - **Agricultural Machinery:** Tractor frames, implement supports, storage tanks - **Mining Equipment:** Support structures, access platforms, equipment bases ### **D. Special Applications:** - **Mobile Equipment:** Trailer frames, vehicle chassis components - **Marine Structures:** Small vessel construction, dock equipment - **Temporary Structures:** Heavy-duty scaffolding, formwork systems - **Urban Infrastructure:** Footbridges, public furniture, lighting columns --- ## **6. INTERNATIONAL STANDARDS & EQUIVALENTS** ### **Primary Designations:** - **EN Standard:** EN 10025-2:2019 - **Material Number:** 1.0044 - **Steel Name:** S275J0 - **Former Designation:** Fe 430 B (EN 10025:1990) ### **Global Equivalents:** | Country/Standard | Equivalent Grade | Key Comparison Notes | |-----------------|------------------|----------------------| | **ISO** | ISO 630-2: E275B | Nearly identical specifications | | **USA (ASTM)** | ASTM A572 Gr. 42 | Similar yield strength (290 MPa) | | **USA (ASTM)** | ASTM A529 Gr. 55 | Higher strength but similar application | | **Germany (DIN)** | DIN EN 10025-2: S275J0 | Direct adoption | | **UK (BS)** | BS 4360: 43B | Historical equivalent | | **Japan (JIS)** | JIS G3106: SM490A | Slightly higher strength (325 MPa) | | **China (GB)** | GB/T 700: Q275B | Similar strength with 20°C impact | | **Australia** | AS/NZS 3678: 300L0 | 300 MPa yield with 0°C impact | ### **Comparison within EN 10025 Structural Steels:** | Grade | Yield Strength (MPa) | Impact Test | Typical CEV | Relative Cost | |-------|---------------------|-------------|-------------|---------------| | **S235J0** | 235 | 0°C | 0.34-0.38 | Base | | **S275J0** | **275** | **0°C** | **0.38-0.42** | **+10-15%** | | **S355J0** | 355 | 0°C | 0.40-0.45 | +25-35% | | **S275JR** | 275 | +20°C (opt) | 0.38-0.42 | +5-8% | --- ## **7. QUALITY ASSURANCE & TESTING** ### **Mandatory Testing (EN 10025-2):** 1. **Tensile Test:** One per batch ≤ 40 tonnes 2. **Impact Test:** One set (3 specimens) at 0°C per batch 3. **Bend Test:** If specified in purchase order 4. **Visual Inspection:** Surface quality per standard requirements ### **Additional Testing Options:** - **Ultrasonic Testing:** For critical applications (quality classes S1-S4) - **Through-Thickness Testing:** Z15 or Z25 quality if required - **Hardness Testing:** Multiple location verification - **Chemical Analysis:** Full spectrographic report ### **Certification:** - **EN 10204 3.1 Certificate:** Standard delivery - **3.2 Certificate:** Available with independent verification - **Traceability:** Heat number maintained throughout supply chain --- ## **8. DESIGN CONSIDERATIONS** ### **Advantages:** 1. **Improved Load Capacity:** 17% higher yield strength than S235J0 2. **Weight Reduction Potential:** Can reduce section sizes compared to S235 3. **Economic Optimization:** Better strength-to-cost ratio than S355 for many applications 4. **Code Acceptance:** Widely recognized in international design codes 5. **Fabrication Friendly:** Good balance of strength and workability ### **Limitations:** - **Not for Severe Environments:** Not suitable for sustained service below -20°C - **Thickness Limitations:** Strength reduction in thicker sections - **Availability:** Less commonly stocked than S235 or S355 grades - **Design Experience:** Fewer historical data than more common grades ### **Design Recommendations:** 1. **Consider when:** Moderate strength increase is needed but S355 is excessive 2. **Evaluate alternatives:** Compare weight savings vs. material cost premium 3. **Check availability:** Confirm local stock before specification 4. **Verify weld procedures:** Ensure fabricator experience with this grade ### **Specification Example:** "EN 10025-2 S275J0+N, thickness 12 mm, normalized condition, with EN 10204 3.1 certificate including impact test results at 0°C." --- ## **9. ENVIRONMENTAL & SUSTAINABILITY** ### **Corrosion Protection:** - **Painting:** Standard epoxy or polyurethane systems - **Galvanizing:** Good suitability for hot-dip galvanizing - **Weathering Steel:** S275J0W variant available with 0.20-0.55% Cu ### **Recyclability:** - **Recycling Rate:** >95% typical - **Embodied Carbon:** Approximately 1.9-2.3 tCO₂/t steel - **Environmental Impact:** Lower than alloy steels due to simpler chemistry ### **Life Cycle Performance:** - **Design Life:** 25-50 years with proper maintenance - **Maintenance Requirements:** Similar to other carbon steels - **End-of-Life Value:** High scrap value due to simple chemistry --- ## **10. TECHNICAL SUMMARY** **EN 1.0044 (S275J0)** represents an **optimized intermediate-grade structural steel** that fills an important niche between the ubiquitous S235 and high-strength S355 grades. Its **balanced combination** of enhanced strength, certified low-temperature toughness, and good fabricability makes it an intelligent choice for engineers seeking to optimize structural designs without resorting to alloy steels. **Market Position:** S275J0 occupies approximately 15-20% of the European structural steel market, primarily in applications where S235 lacks sufficient strength but S355 provides unnecessary capacity. Its use is particularly common in: - Medium-span building structures - Industrial facilities with moderate loading - Infrastructure projects with weight/strength optimization requirements - Applications requiring certified toughness at moderate temperatures **Future Trends:** Increasing emphasis on material efficiency and sustainable construction is expected to drive greater utilization of intermediate-strength grades like S275J0, as they offer improved performance without the environmental impact of alloy steel production. **Selection Guidance:** - **Choose S275J0 over S235J0 when:** Load requirements exceed S235 capacity, weight reduction is beneficial, or material cost increase is justified by overall project savings - **Choose S355J0 over S275J0 when:** Higher strength-to-weight ratio is critical, design loads are significantly higher, or project specifications mandate minimum S355 - **Consider project-specific factors:** Availability, fabricator experience, connection design requirements, and total project economics --- **Important Notice:** This technical information is based on standard specifications and typical industry data. For specific applications: 1. Always consult the latest edition of EN 10025-2 2. Review actual mill test certificates for supplied material 3. Consider project-specific conditions and requirements 4. Engage qualified engineering professionals for critical applications 5. Verify local availability and supply chain considerations before specification -:- For detailed product information, please contact sales. -: EN 1.0044 High Manganese Carbon Steel Specification Dimensions Size： Diameter 20-1000 mm Length <5787 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 1.0044 High Manganese Carbon Steel Properties -:- For detailed product information, please contact sales. -:

Applications of EN 1.0044 High Manganese Carbon Steel Tube -:- For detailed product information, please contact sales. -: Chemical Identifiers EN 1.0044 High Manganese Carbon Steel Tube -:- For detailed product information, please contact sales. -:

Packing of EN 1.0044 High Manganese Carbon 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 2258 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