AISI 1522 Steel Foil/Strip,UNS G15220

AISI 1522 Steel Foil Composition Spec (UNS G15220) Product Information -:- For detailed product information, please contact sales. -: AISI 1522 Steel Foil Composition Spec (UNS G15220) Synonyms -:- For detailed product information, please contact sales. -:

AISI 1522 Steel Composition Spec (UNS G15220) Product Information -:- For detailed product information, please contact sales. -: ### **Product Introduction: AISI 1522 Steel Composition Specification (UNS G15220)** **Overview** AISI 1522 (UNS G15220) is a standardized **medium-carbon, high-manganese steel** defined by its chemical composition. As a member of the "15xx" series, its hallmark is a significantly elevated manganese content (typically 1.10-1.40%), classifying it as a **manganese alloy steel**. This specific grade features a carbon content balanced for enhanced strength and hardenability while maintaining reasonable formability. The combination of carbon and manganese provides improved mechanical properties and heat treatability over comparable plain carbon steels like 1022 or 1035, making it a versatile, cost-effective engineering steel for applications requiring good strength, toughness, and wear resistance. **Key Features & Characteristics** * **Enhanced Hardenability & Strength:** The elevated manganese content substantially increases the steel's ability to be through-hardened (quenched and tempered), allowing for the development of uniform strength and hardness in larger cross-sections than is possible with plain carbon steels of similar carbon content. * **Good Toughness & Wear Resistance:** When properly heat treated, it offers a favorable balance of tensile strength and impact resistance, along with improved resistance to abrasion compared to lower alloy grades. * **Good Forgeability and Weldability (with precautions):** Suitable for hot forging operations and can be welded using appropriate procedures (preheat, low-hydrogen electrodes, controlled cooling). * **Economic Performance Steel:** Provides a more economical alternative to chromium-molybdenum alloy steels for many applications where superior hardenability and moderate strength are primary requirements. * **Versatile Processing:** Commonly supplied in hot-rolled, cold-drawn, or heat-treated conditions, adaptable to various manufacturing processes. --- ### **1. Chemical Composition (Standard Conformance)** | Element | Standard Range (%) | Key Function | | :--- | :--- | :--- | | **Carbon (C)** | 0.18 – 0.23 | Provides core strength and hardenability. This medium-low carbon range ensures good weldability and toughness while allowing effective strengthening via heat treatment. | | **Manganese (Mn)** | 1.10 – 1.40 | **Primary Alloying Element.** Significantly enhances hardenability, allowing deeper penetration of hardness during quenching. Also contributes to solid solution strengthening. | | **Phosphorus (P)** | ≤ 0.040 (max) | Residual element, kept low to maintain good toughness, particularly in transverse directions. | | **Sulfur (S)** | ≤ 0.050 (max) | Residual element, kept low. **This is not a free-machining grade.** Ensures better ductility and weldability. | | **Silicon (Si)** | 0.15 – 0.35 | Acts as a deoxidizer during steelmaking; contributes to strength. | | **Iron (Fe)** | Balance | Base element. | **Key International Standard Equivalents:** * **UNS:** G15220 * **AISI/SAE:** 1522 * **ASTM:** A29 (Standard Specification for Steel Bars, Carbon and Alloy, Hot-Wrought and Cold-Finished) * **ASTM:** A519 (for mechanical tubing) * **DIN (Germany):** ~1.1150 / C22 (approximate, but with much lower Mn) * **EN (Europe):** No direct equivalent. Similar in concept to a higher-manganese variant of 1.1151 (C22E). * **JIS (Japan):** No direct equivalent. --- ### **2. Typical Physical & Mechanical Properties (Condition Dependent)** *Properties vary significantly based on final processing. The values below are typical ranges.* | Property / Condition | Hot-Rolled (As-Rolled) | Normalized | Quenched & Tempered (Example) | | :--- | :--- | :--- | :--- | | **Density** | 7.85 g/cm³ | 7.85 g/cm³ | 7.85 g/cm³ | | **Tensile Strength** | 500 – 650 MPa | 550 – 700 MPa | 900 – 1200 MPa | | **Yield Strength (0.2% Offset)** | 320 – 450 MPa | 350 – 500 MPa | 750 – 1050 MPa | | **Elongation (in 50mm)** | 20% – 28% | 18% – 25% | 10% – 16% | | **Brinell Hardness (HB)** | 160 – 210 | 170 – 220 | 300 – 400 (HRC 32-42) | | **Machinability (As-Rolled/Norm)** | Fair (~55% of 1212) | Fair | Poor | | **Impact Toughness** | Good | Good | Good (with proper tempering) | | **Hardenability** | Medium-High. Suitable for through-hardening of moderate to moderately large sections. | | | --- ### **3. Product Applications** AISI 1522 is selected for components that require a combination of good strength, toughness, and response to heat treatment, often replacing 1020 or 1035 where higher performance is needed. * **Forged Components:** Connecting rods, lever arms, yoke arms, and other forged parts requiring good hot workability and subsequent heat treatment. * **Shafts and Axles:** Drive shafts, axle shafts, and general power transmission shafts that benefit from through-hardening for increased fatigue strength. * **Gears and Sprockets:** Medium-duty gears, pinions, and sprockets that are either through-hardened or case-hardened. * **High-Strength Fasteners:** Bolts, studs, and pins where higher core strength than Grade 5 or similar is required. * **Agricultural and Construction Equipment:** Pivot pins, bucket teeth adapters, and linkage components subject to impact and wear. * **General Machinery and Automotive Parts:** Brackets, hydraulic components, and other stressed parts requiring reliable performance. --- ### **4. Important Distinctions & Considerations** * **Not a Free-Machining Steel:** Contains low sulfur and phosphorus. Machinability is lower than resulfurized grades (11xx, 12xx series). Machining is typically performed in the normalized or annealed condition with appropriate tooling. * **Heat Treatment is Standard:** This grade is often specified with a required heat treatment (e.g., "1522, Normalized" or "1522, Q&T to HRC 28-35") for its final application. It responds well to both through-hardening and carburizing. * **Comparison to 10xx Series (e.g., 1022/1035):** AISI 1522 offers significantly better hardenability and strength at similar carbon levels due to its higher manganese. It achieves higher strength in thicker sections with less severe quenching. * **Comparison to 41xx Series (e.g., 4140):** Has lower hardenability and strength potential than chromium-molybdenum steels like 4140, but offers better machinability in the annealed state and is more economical. 1522 is a suitable choice where the premium properties of Cr-Mo steel are not fully required. * **Weldability:** Can be welded with proper procedures. Preheating (150-260°C / 300-500°F) is recommended for thick sections or high restraint to avoid hydrogen-induced cracking in the heat-affected zone (HAZ). Post-weld heat treatment may be beneficial. * **"H" Grade Availability:** An **AISI 1522H** grade exists for applications requiring guaranteed hardenability bands, providing predictable heat treatment response for critical components. --- **Disclaimer:** The information provided is based on standard industry specifications for reference. Actual properties, performance, and processability depend on specific manufacturing methods, heat treatment cycles, and final part geometry. For engineering applications, always consult the certified material test report and relevant application standards. -:- For detailed product information, please contact sales. -: AISI 1522 Steel Composition Spec (UNS G15220) Specification Dimensions Size： Diameter 20-1000 mm Length <5032 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. -: AISI 1522 Steel Composition Spec (UNS G15220) Properties -:- For detailed product information, please contact sales. -:

Applications of AISI 1522 Steel Foil Composition Spec (UNS G15220) -:- For detailed product information, please contact sales. -: Chemical Identifiers AISI 1522 Steel Foil Composition Spec (UNS G15220) -:- For detailed product information, please contact sales. -:

Packing of AISI 1522 Steel Foil/Strip Composition Spec (UNS G15220) -:- 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 Foil/Strip 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 1503 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