Astralloy 4800® Wear Resistant Steel Tube,Pipe

Astralloy 4800® Wear Resistant Steel Tube Product Information -:- For detailed product information, please contact sales. -: Astralloy 4800® Wear Resistant Steel Tube Synonyms -:- For detailed product information, please contact sales. -:

Astralloy 4800® Wear Resistant Steel Product Information -:- For detailed product information, please contact sales. -: # **Astralloy 4800® Wear Resistant Steel Plate** --- ## **1. Product Overview** Astralloy 4800® is a premium **medium-carbon, low-alloy, quenched and tempered** abrasion-resistant steel plate designed to deliver outstanding performance in moderately severe to severe wear environments. It achieves an optimal balance between high surface hardness, good toughness, and excellent weldability. The product is supplied in the **fully heat-treated condition**, ready for fabrication and immediate use, providing reliable and cost-effective wear protection for a wide range of industrial applications. --- ## **2. Key Features & Advantages** * **Superior Wear Resistance:** Delivers a nominal hardness of **480 Brinell (HB)** minimum, translating to excellent resistance to abrasive wear and material degradation. * **Optimal Toughness:** The quenched and tempered microstructure provides superior impact resistance and fracture toughness compared to higher hardness, more brittle materials, making it ideal for applications involving moderate impact. * **Excellent Fabricability:** Exhibits significantly better weldability, formability, and machinability than higher carbon-equivalent steels (e.g., 500+ HB grades), reducing fabrication costs and complexity. * **Ready-to-Use:** Supplied in the final hardened and tempered condition, eliminating the need for and risks associated with post-fabrication heat treatment. * **Proven Reliability:** Consistent metallurgical properties and through-thickness hardness ensure predictable performance and extended service life. --- ## **3. Chemical Composition (Typical Weight %)** The chemical composition of Astralloy 4800® is carefully balanced to achieve its signature combination of hardness, toughness, and weldability. | Element | Content (%) | Role | | :--- | :--- | :--- | | **Carbon (C)** | 0.20 - 0.28 | Primary hardening element; provides strength and wear resistance. | | **Manganese (Mn)** | 1.00 - 1.50 | Increases hardenability and strength; aids in deoxidation. | | **Silicon (Si)** | 0.30 - 0.60 | Deoxidizer; increases strength and hardness. | | **Chromium (Cr)** | 0.40 - 0.80 | Enhances hardenability, wear, and corrosion resistance. | | **Molybdenum (Mo)** | 0.15 - 0.30 | Increases hardenability (especially in thick sections) and strength at elevated temperatures. | | **Boron (B)** | 0.001 - 0.005 | Powerful hardenability enhancer, allowing leaner overall alloy content for better weldability. | | **Phosphorus (P)** | ≤ 0.020 | Impurity; controlled to low levels to ensure toughness. | | **Sulfur (S)** | ≤ 0.008 | Impurity; controlled to very low levels to improve through-thickness properties and weldability. | | *(Other micro-alloying elements such as Ni, V, or Ti may be added for specific property enhancements.)* | | | --- ## **4. Physical & Mechanical Properties** ### **4.1 Mechanical Properties (Typical)** * **Hardness:** **480 - 530 HB** (Approx. 51 - 54 HRC) nominal bulk hardness. * **Yield Strength (Rp0.2):** ≥ **1200 MPa** (≥ 174 ksi) * **Tensile Strength (Rm):** ≥ **1350 MPa** (≥ 196 ksi) * **Elongation at Break (A₅):** ≥ **12%** * **Impact Toughness (Charpy V-notch, @ -20°C / -4°F):** ≥ **25 J** (≥ 18 ft-lb) – Specific values depend on plate thickness. ### **4.2 Physical Properties** * **Density:** 7.85 g/cm³ (0.284 lb/in³) * **Modulus of Elasticity:** 210 GPa (30 x 10⁶ psi) * **Poisson's Ratio:** 0.29 * **Thermal Conductivity:** ~46 W/(m·K) at 20°C * **Coefficient of Thermal Expansion:** 11.5 x 10⁻⁶ /K (20-100°C range) --- ## **5. Fabrication Guidelines** ### **5.1 Cutting** * **Flame Cutting:** Requires preheating to **150-200°C (300-400°F)** to avoid hydrogen-induced cracking (HIC). Slow, uniform cooling is recommended. * **Plasma & Laser Cutting:** Excellent results; minimal heat-affected zone (HAZ). * **Mechanical Cutting (Shearing, Sawing):** Suitable; requires high-quality tooling designed for high-strength steels. ### **5.2 Welding (A Critical Advantage)** Astralloy 4800® is renowned for its superior weldability in its hardness class. * **Preheat Temperature:** **100-150°C (212-300°F)** is typically sufficient for most thicknesses, significantly lower than for 500+ HB grades. * **Interpass Temperature:** Maintain below **250°C (480°F)**. * **Filler Metal:** Use low-hydrogen electrodes/wires with **matching or slightly under-matching strength** (e.g., 480-550 MPa yield strength). Common choices include AWS E11018-M, ER110S-G, or equivalent. * **Post-Weld Treatment:** **Stress relieving is generally not required** for most applications, but slow cooling under insulation is recommended. ### **5.3 Forming & Machining** * **Cold Bending:** Possible with a minimum bend radius of **4-5 times the plate thickness (t)**. * **Machining:** Requires carbide-tipped tools with positive rake angles, adequate cooling, and lower speeds/feeds than mild steel. --- ## **6. International Standards & Equivalents** Astralloy 4800® aligns with several international standards for high-strength wear-resistant steels. It is a proprietary grade that often exceeds the base requirements of these standards. | Standard | Equivalent / Comparable Grade | Key Specification | | :--- | :--- | :--- | | **ASTM A514 / A517** | Grade H / Q | Quenched & Tempered Alloy Steel Plate | | **EN 10025-6** | S460Q / S460QL | Quenched & Tempered Fine Grain Structural Steel | | **ISO 4950-3** | Q460QR / Q500QR | High Yield Strength Quenched & Tempered Plate | | **JIS G3124** | SHY685 (Similar strength level) | High Yield Strength Steel Plates | | **Common Industry Designation** | **AR450 / AR500** (Performance Equivalent) | Abrasion-Resistant Steel Plate | **Note:** While comparable to AR450/AR500 in application, Astralloy 4800® typically offers superior toughness and weldability due to its optimized chemistry and processing. --- ## **7. Typical Applications** Astralloy 4800® is the material of choice for components subjected to significant abrasion combined with moderate to high impact loads. * **Mining & Quarrying:** Dump truck body liners, bucket liners for loaders and excavators, chute and hopper liners, crusher feed plates, screen decks. * **Construction & Earthmoving:** Excavator bucket wear plates, cutting edges (base plates), grader blades, ripper shanks, conveyor scraper blades. * **Material Handling:** Skirt board seals, impact bars in conveyor transfer points, vibratory feeder pans, bucket elevator components. * **Forestry & Recycling:** Chipper anvils and housing liners, shredder hammer tips (for moderate impact), log grapple wear plates. * **Agriculture:** Plowshares, subsoiler points, combine harvester feeder house and grain tank wear surfaces. --- ## **8. Availability** * **Thickness Range:** Typically from 6 mm (0.25") up to 100 mm (4") or more, depending on the producer. * **Width & Length:** Standard mill sizes; can often be supplied cut-to-size or profile-cut. --- **Disclaimer:** This document provides general information. For specific design, fabrication, or welding procedures, always consult the official technical data sheets from the material producer or supplier. Properties and recommendations may vary with plate thickness and specific manufacturing lot. "Astralloy" and "Astralloy 4800" are assumed to be registered trademarks. -:- For detailed product information, please contact sales. -: Astralloy 4800® Wear Resistant Steel Specification Dimensions Size： Diameter 20-1000 mm Length <7074 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. -: Astralloy 4800® Wear Resistant Steel Properties -:- For detailed product information, please contact sales. -:

Applications of Astralloy 4800® Wear Resistant Steel Tube -:- For detailed product information, please contact sales. -: Chemical Identifiers Astralloy 4800® Wear Resistant Steel Tube -:- For detailed product information, please contact sales. -:

Packing of Astralloy 4800® Wear Resistant 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 3545 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