AISI 1541 Steel, Cold Drawn,UNS G15410

AISI 1541 Steel, Cold Drawn Bar (UNS G15410) Product Information -:- For detailed product information, please contact sales. -: AISI 1541 Steel, Cold Drawn Bar (UNS G15410) Synonyms -:- For detailed product information, please contact sales. -:

AISI 1541 Steel, Cold Drawn Bar (UNS G15410) Product Information -:- For detailed product information, please contact sales. -: ### **Product Introduction: AISI 1541 Steel, Cold Drawn Bar (UNS G15410)** **Overview** AISI 1541 (UNS G15410) is a high-manganese, medium-carbon alloy steel supplied in the precision **cold drawn bar** condition. This advanced manufacturing process transforms hot-rolled stock through cold working, resulting in a product with superior dimensional accuracy, a bright and smooth surface finish, and significantly enhanced mechanical properties via strain hardening. The defining high manganese content (1.35-1.65%) provides excellent inherent hardenability, making this material a premium choice for high-strength components that require precision machining, dimensional stability, and a reliable foundation for subsequent heat treatment. **Key Features & Advantages** * **Enhanced Strength and Hardness:** The cold drawing process significantly increases yield and tensile strength through strain hardening. This "as-drawn" condition provides a higher strength starting material compared to hot-rolled stock, potentially reducing or eliminating the need for heat treatment in some applications. * **Superior Dimensional Precision and Surface Quality:** Offers tight diameter tolerances (ASTM A108), excellent straightness, and a bright, scale-free surface with low roughness. This reduces machining allowances, improves part assembly and performance, and minimizes secondary finishing operations. * **Excellent Hardenability and Heat Treatment Response:** The high manganese content ensures deep and uniform hardenability. When final heat treatment (quenching & tempering) is required, the consistent, cold worked microstructure provides a predictable and uniform starting condition for optimal results. * **Good Machinability for High-Strength Steel:** In the cold drawn condition, it offers fair and consistent machinability for its strength class, enabling efficient and reliable production of precision components with predictable tool wear. * **Manufacturing Efficiency and Reliability:** Serves as a near-net-shape material that reduces processing steps, minimizes material waste, and provides consistent quality, streamlining the production of critical, high-strength parts. --- ### **1. Chemical Composition (Standard Conformance)** | Element | Standard Range (%) | Key Function | | :--- | :--- | :--- | | **Carbon (C)** | 0.36 – 0.44 | Provides core strength and hardenability. Optimized for high strength after heat treatment while maintaining adequate toughness. | | **Manganese (Mn)** | 1.35 – 1.65 | **Primary Alloying Element.** Dramatically increases hardenability, allowing for effective through-hardening of substantial sections. Significantly contributes to strength and fine grain structure. | | **Phosphorus (P)** | ≤ 0.040 (max) | Residual element, minimized for toughness. | | **Sulfur (S)** | ≤ 0.050 (max) | Residual element, kept low. **This is not a free-machining steel.** | | **Silicon (Si)** | 0.15 – 0.35 | Deoxidizer; solid solution strengthener. | | **Iron (Fe)** | Balance | Base element. | **Key International Standard Equivalents:** * **UNS:** G15410 * **AISI/SAE:** 1541 * **ASTM:** **A108** (Standard Specification for Steel Bar, Carbon and Alloy, Cold-Finished) * **ASTM:** A29 (General Requirements) * **DIN (Germany):** 1.1167 / 38Mn6 (Close analogue) * **EN (Europe):** 1.1167 / 38Mn6 --- ### **2. Typical Physical & Mechanical Properties (Cold Drawn Condition)** *Properties reflect the significant strain hardening from cold drawing. Values are for the as-drawn state.* | Property | Typical Value / Description | | :--- | :--- | | **Density** | 7.85 g/cm³ (0.284 lb/in³) | | **Tensile Strength** | 750 – 900 MPa (109 – 131 ksi) | | **Yield Strength (0.2% Offset)** | **620 – 780 MPa (90 – 113 ksi)** – *Key benefit of cold work* | | **Elongation (in 50mm)** | 12% – 18% | | **Brinell Hardness (HB)** | 220 – 280 | | **Machinability (Comparison)** | Fair to Moderate (~35-40% of AISI 1212). Requires robust setups, positive rake tools, and appropriate parameters. | | **Surface Roughness (Ra)** | 1.6 – 3.2 μm (63 – 125 μin). Bright, smooth commercial finish. | | **Tolerances** | Meets ASTM A108 cold-drawn tolerances for precision machining. | | **Hardenability Potential** | High; an excellent candidate for subsequent quenching & tempering to achieve ultimate strength (HRC 40-50+). | --- ### **3. Product Applications** AISI 1541 cold drawn bars are specified for critical, high-strength components where precision, reliability, and performance are non-negotiable. * **High-Strength Precision Shafting:** Axle shafts, drive shafts, spindle shafts, and hydraulic piston rods requiring exceptional straightness, surface finish, and high yield strength. * **High-Performance Fasteners and Pins:** Bolts, studs, dowel pins, and hinge pins machined from bar stock, often heat-treated to very high strength levels (exceeding Grade 8.8/10.9). * **Hydraulic and Pneumatic Components:** High-pressure cylinder rods, piston rods, and valve spools where surface integrity and strength prevent failure. * **Automotive and Off-Highway Drivetrain:** Transmission shafts, axle components, and steering parts for demanding conditions. * **Gear, Sprocket, and Bearing Components:** Blanks for through-hardened gears, rollers, and other wear-resistant parts. * **Tooling and Heavy-Duty Machine Parts:** Ejector pins, guide rods, fixture components, and press tools requiring high strength and wear resistance. --- ### **4. Important Considerations** * **Residual Stress Management:** Cold drawing induces significant residual surface stresses. For parts undergoing complex, asymmetric, or heavy machining, **a stress-relieving heat treatment (e.g., 550-650°C / 1020-1200°F) prior to final machining is strongly recommended** to prevent distortion and ensure dimensional stability. * **Heat Treatment Strategy:** Three primary paths: 1) **Use as-drawn** where its cold-worked strength suffices. 2) **Machine, then quench & temper** for maximum strength (requires distortion control). 3) **Stress relieve, machine, then heat treat** for complex, high-precision critical parts. * **Machinability:** Not a free-machining steel. Requires rigid machine tools, sharp carbide inserts, optimal feeds/speeds, and ample coolant. For extensive machining, specifying an annealed condition may be advantageous. * **Weldability:** **Weldable only with strict, controlled procedures.** Mandatory preheat (250-350°C / 480-660°F), low-hydrogen electrodes, and post-weld heat treatment (PWHT) are required to avoid hydrogen cracking and restore properties in the HAZ. Welding on finished hardened components is not recommended. * **Comparison to Hot-Rolled 1541:** Offers superior surface finish, tighter tolerances, higher strength, better straightness, and more consistent machining performance. * **Comparison to 1144 Cold Drawn:** 1541 CD offers superior toughness, through-hardenability, and overall mechanical performance, but lower machinability. 1144 CD is a high-strength free-machining steel; 1541 CD is a high-performance engineering steel. * **"H" Grade Available:** **AISI 1541H** is available in cold drawn form for applications requiring guaranteed hardenability bands (SAE J1268), providing the highest level of predictability for critical heat-treated components. --- **Disclaimer:** This information is based on standard industry specifications. Actual properties may vary. For engineering applications, consult certified material test reports and conduct appropriate validation testing. The decision to use the material as-drawn or to apply subsequent heat treatment is a fundamental design choice impacting manufacturing process, cost, and final performance. -:- For detailed product information, please contact sales. -: AISI 1541 Steel, Cold Drawn Bar (UNS G15410) Specification Dimensions Size： Diameter 20-1000 mm Length <5041 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 1541 Steel, Cold Drawn Bar (UNS G15410) Properties -:- For detailed product information, please contact sales. -:

Applications of AISI 1541 Steel, Cold Drawn Bar (UNS G15410) -:- For detailed product information, please contact sales. -: Chemical Identifiers AISI 1541 Steel, Cold Drawn Bar (UNS G15410) -:- For detailed product information, please contact sales. -:

Packing of AISI 1541 Steel, Cold Drawn Bar (UNS G15410) -:- 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 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 1512 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