InduSteel Seamless tube,SUPERELSO® 890 HLE Steel Seamless tube for Welded and Weight-Saving Structures

InduSteel Seamless tube SUPERELSO® 890 HLE Steel Seamless tube for Welded and Weight-Saving Structures Product Information -:- For detailed product information, please contact sales. -: InduSteel Seamless tube SUPERELSO® 890 HLE Steel Seamless tube for Welded and Weight-Saving Structures Synonyms -:- For detailed product information, please contact sales. -:

Industeel SUPERELSO® 890 HLE Steel for Welded and Weight-Saving Structures Product Information -:- For detailed product information, please contact sales. -: # **Product Datasheet: Industeel SUPERELSO® 890 HLE Steel** ## **1. Product Overview** **SUPERELSO® 890 HLE** is a premium **high-strength, low-alloy (HSLA) steel plate** developed by Industeel (a subsidiary of ArcelorMittal) specifically for welded structures where **extreme weight reduction, exceptional safety, and superior weldability** are paramount. The designation indicates a minimum yield strength of 890 MPa ("890") and classification as **"HLE" – High Load-carrying capacity with Extreme toughness**. This steel represents the pinnacle of structural steel technology, engineered to meet the most demanding requirements for mobile cranes, lifting equipment, advanced commercial vehicles, and other high-performance structures operating under severe dynamic loads and low-temperature conditions. ## **2. International Standards & Designations** | System/Authority | Designation | Specification Title / Relationship | | :--- | :--- | :--- | | **Manufacturer** | **Industeel SUPERELSO® 890 HLE** | Proprietary brand name, trademark of ArcelorMittal | | **European (EN)** | **EN 10025-6:2019** | Hot rolled products of structural steels - Part 6: High yield strength structural steel in the quenched and tempered condition | | **Grade per EN** | **S890Q / S890QL** | Corresponding standard grades for quenched & tempered steels (Q for as-quenched, L for special low-temperature toughness) | | **International (ISO)** | **ISO 630-6:2021** | Structural steels - Part 6: Technical delivery conditions for high yield strength structural steel plates in the quenched and tempered or precipitation hardened condition | | **ASTM (USA)** | **A514/A514M** | High-Yield-Strength, Quenched and Tempered Alloy Steel Plate, Suitable for Welding (Grade T approximate) | | **JIS (Japan)** | **SHY685** (Similar) | Similar high-strength steel for welded structures | | **Common Names** | S890QL, 890 MPa Quenched & Tempered Steel, Ultra-High-Strength Structural Steel | ## **3. Chemical Composition (% by Weight)** The chemistry is a lean alloy design optimized for ultra-high strength, extreme toughness, and excellent weldability through Thermomechanical Controlled Processing (TMCP) and Quenching & Tempering (Q&T). | Element | Typical SUPERELSO® 890 HLE Range | Key Metallurgical Function | | :--- | :--- | :--- | | **Carbon (C)** | **≤ 0.18** (Often ~0.10-0.15) | Low carbon maximizes weldability and toughness while providing base strength. | | **Manganese (Mn)** | **≤ 1.80** | Primary solid solution strengthener, austenite stabilizer, and hardenability agent. | | **Phosphorus (P)** | **≤ 0.020** | Ultra-low to prevent embrittlement. | | **Sulfur (S)** | **≤ 0.010** | Ultra-low to optimize ductility and through-thickness properties (Z-quality). | | **Silicon (Si)** | **≤ 0.80** | Deoxidizer and solid solution strengthener. | | **Chromium (Cr)** | **≤ 1.50** | Enhances hardenability and atmospheric corrosion resistance. | | **Nickel (Ni)** | **≤ 2.00** | **Critical for toughness:** Lowers ductile-to-brittle transition temperature dramatically. | | **Molybdenum (Mo)** | **≤ 0.70** | Potent hardenability agent, improves strength at high tempering temperatures. | | **Vanadium (V)** | **≤ 0.12** | Precipitation strengthener, grain refiner. | | **Niobium (Nb)** | **≤ 0.06** | Powerful grain refiner via Nb(CN) precipitation, enhancing strength and toughness. | | **Boron (B)** | **≤ 0.005** (optional) | Trace additions for hardenability enhancement. | | **Copper (Cu)** | **≤ 0.50** | Residual/optional for weathering resistance. | | **Iron (Fe)** | Balance | Matrix. | **Key Process:** Manufactured via **Electric Arc Furnace** melting, **Ladle Metallurgy** refining, **Thermomechanical Rolling (TMCP)** for a fine-grained austenite, followed by **Direct Quenching** and **Tempering (DQQ&T)**. This integrated process creates a fine **tempered martensitic/bainitic microstructure**. ## **4. Mechanical & Physical Properties** Properties are guaranteed for the as-supplied condition (quenched and tempered). Plate thickness typically ranges from 5mm to 120mm. | Property | Minimum Requirement / Typical Value (EN 10025-6 S890QL) | Test Standard | Notes | | :--- | :--- | :--- | :--- | | **Yield Strength (Rp0.2)** | **≥ 890 MPa (≥ 129 ksi)** | EN ISO 6892-1 | High and consistent across plate thickness. | | **Tensile Strength (Rm)** | **940 - 1100 MPa (136 - 160 ksi)** | EN ISO 6892-1 | Tightly controlled band for predictable design. | | **Elongation (A₅)** | **≥ 10%** | EN ISO 6892-1 | Good ductility for ultra-high strength steel. | | **Impact Toughness (Charpy V-notch)** | **≥ 40 J at -60°C (-76°F)** | EN ISO 148-1 | **"Extreme toughness" (HLE)** designation. Guaranteed for longitudinal and transverse directions. | | **Bend Test** | Bend to 180° over mandrel **t ≤ 0.5 * t** (plate thickness) | EN ISO 7438 | Excellent formability despite high strength. | | **Hardness** | Typically **270 - 320 HBW** | EN ISO 6506-1 | | | **Modulus of Elasticity** | **~210 GPa (30.5 x 10⁶ psi)** | -- | Assumed for design. | | **Shear Modulus** | **~81 GPa (11.7 x 10⁶ psi)** | -- | | | **Density** | **7.85 g/cm³** | -- | | | **Poisson's Ratio** | **0.29** | -- | | | **Through-Thickness (Z) Property** | **Z35** typically available (≥ 35% reduction of area) | EN 10164 | Critical for highly constrained welded joints. | ## **5. Key Characteristics & Advantages** * **Extreme Strength-to-Weight Ratio:** Enables dramatic weight reduction (up to 50-60% vs. S355 steel) in mobile structures, leading to higher payloads, greater mobility, and lower energy consumption. * **Unmatched Low-Temperature Toughness:** Maintains high impact resistance down to -60°C, ensuring structural integrity in arctic conditions or for safety-critical components. * **Superior Weldability (Pcm < ~0.25%):** Low carbon equivalent allows welding without preheating in many thicknesses and with common processes (MAG, SAW), reducing fabrication time and cost. * **Excellent Fatigue Performance:** Fine-grained microstructure provides high resistance to crack initiation and propagation under cyclic loading. * **High Dimensional Stability:** Quenching and tempering minimizes residual stresses, reducing distortion during and after fabrication. * **Good Cold Forming Capability:** Can be bent and formed to tight radii relative to its strength level. * **Consistent Through-Thickness Properties:** Ensures reliability in thick plates and complex welded details. ## **6. Primary Applications** SUPERELSO® 890 HLE is engineered for the most demanding high-performance structural applications. * **Mobile & Crawler Cranes:** Booms, telescopic sections, slewing rings, and outriggers for maximum reach and capacity with minimal weight. * **Advanced Commercial Vehicles:** Chassis frames, tipping bodies, and lifting gear for dump trucks, cement mixers, and special transports. * **Lifting & Material Handling:** Components for harbor cranes, container handlers, and heavy-duty forklifts. * **Mining & Heavy Equipment:** Structural members for excavators, draglines, and drilling rigs requiring high strength and fatigue resistance. * **Bridge Construction & Repair:** For lightweight, high-capacity movable bridges or strengthening elements. * **Military & Defense:** Armored vehicle components (non-ballistic structural parts), bridging systems, and transport equipment. * **Renewable Energy:** Tower sections and internal structures for advanced wind turbines. ## **7. Fabrication & Welding Guidelines** * **Cutting:** Plasma, laser, or waterjet cutting preferred. Oxy-fuel cutting requires care; preheating to 100-150°C recommended for thicknesses >30mm. * **Cold Forming:** Possible with radii adjusted for high strength. Consult manufacturer's guidelines. * **Welding (Key Advantage):** * **Filler Metals:** Use undermatching (e.g., ~770 MPa yield strength) or matching high-toughness wires (e.g., EN ISO 16834-A: G 89 6 M21 Mn3Ni2CrMo). * **Preheat:** Generally not required for thin plates (<15-20mm) due to low CEV. For thicker sections or restrained joints, a mild preheat (50-100°C) may be specified. * **Heat Input:** Control to 1.5-2.5 kJ/mm to preserve HAZ toughness. * **Post-Weld Heat Treatment:** Usually not necessary. * **Machining:** Requires robust setups and carbide tooling. Use positive rake angles and ample coolant. ## **8. Comparison with Other High-Strength Steels** | Property | **SUPERELSO® 890 HLE** | S690Q | S355MC (Mild Steel) | | :--- | :--- | :--- | :--- | | **Min. Yield Strength** | **890 MPa** | 690 MPa | 355 MPa | | **Typical Weight Saving** | **~60%** (vs. S355) | ~50% (vs. S355) | Baseline | | **Impact @ -60°C** | **≥ 40 J** | ≥ 40 J (QL) | Not specified | | **Carbon Equivalent (Pcm)** | **Very Low (~0.22)** | Low (~0.28) | Very Low | | **Primary Use** | **Ultra-light, critical structures** | Heavy structural | General structural | --- **Disclaimer:** This datasheet provides general information on **Industeel SUPERELSO® 890 HLE** steel. **SUPERELSO® is a registered trademark of ArcelorMittal.** For design and procurement, the complete and authoritative specifications from **Industeel/ArcelorMittal** and the relevant standards (e.g., **EN 10025-6**) shall govern. This material is a premium engineering solution, and its successful application requires specific expertise in high-strength steel design, fabrication, and welding. Consultation with the manufacturer's technical services and certified welding engineers is **strongly recommended** before specification. Properties and recommendations may vary with plate thickness, rolling direction, and specific manufacturer's process. -:- For detailed product information, please contact sales. -: Industeel SUPERELSO® 890 HLE Steel for Welded and Weight-Saving Structures Specification Dimensions Size： Diameter 20-1000 mm Length <6425 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. -: Industeel SUPERELSO® 890 HLE Steel for Welded and Weight-Saving Structures Properties -:- For detailed product information, please contact sales. -:

Applications of InduSteel Seamless tube SUPERELSO® 890 HLE Steel Seamless tube for Welded and Weight-Saving Structures -:- For detailed product information, please contact sales. -: Chemical Identifiers InduSteel Seamless tube SUPERELSO® 890 HLE Steel Seamless tube for Welded and Weight-Saving Structures -:- For detailed product information, please contact sales. -:

Packing of InduSteel Seamless tube SUPERELSO® 890 HLE Steel Seamless tube for Welded and Weight-Saving Structures -:- 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 Seamless 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 2896 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