AISI 1151 Steel Sheet,Plate,UNS G11510

AISI 1151 Steel Sheet/Plate, Hot Rolled Bar (UNS G11510) Product Information -:- For detailed product information, please contact sales. -: AISI 1151 Steel Sheet/Plate, Hot Rolled Bar (UNS G11510) Synonyms -:- For detailed product information, please contact sales. -:

AISI 1151 Steel, Hot Rolled Bar (UNS G11510) Product Information -:- For detailed product information, please contact sales. -: ### **Product Introduction: AISI 1151 / UNS G11510 Hot Rolled Steel Bar** **Overview** AISI 1151 (UNS G11510) is a standard medium-carbon manganese steel supplied in hot rolled condition. Unlike the resulfurized free-machining grades (1141/1144), AISI 1151 is a **"straight" or "plain" carbon-manganese steel** characterized by controlled manganese content at the higher end of the standard carbon steel range. This composition provides enhanced hardenability, strength, and wear resistance over basic grades like 1045, while maintaining good ductility and toughness. As a hot rolled bar, it is the most economical and readily available form, suitable for components that will be forged, machined, and subsequently heat treated to achieve their final mechanical properties. **Key Features & Advantages** * **Enhanced Hardenability:** The elevated manganese content (0.70-1.00%) provides better through-hardening capability than lower manganese grades, allowing for effective heat treatment of larger cross-sections. * **Good Strength and Toughness Balance:** Offers a robust combination of tensile strength and impact resistance, especially after proper heat treatment. * **Good Forgeability and Weldability:** As a non-resulturized grade with low sulfur and phosphorus, it exhibits significantly better forgeability and weldability compared to 11xx series free-machining steels. * **Cost-Effective Performance Steel:** Serves as a versatile, economical workhorse material for a wide range of demanding applications requiring heat treatment. * **Wide Availability:** A standard grade commonly stocked in various hot rolled bar sizes. --- ### **1. Chemical Composition (Standard Conformance)** | Element | Standard Range (%) | Key Function | | :--- | :--- | :--- | | **Carbon (C)** | 0.48 – 0.55 | Provides core strength, hardness, and hardenability. Defines it as a medium-high carbon steel. | | **Manganese (Mn)** | 0.70 – 1.00 | **Key feature.** Enhances hardenability and strength significantly, improves wear resistance. | | **Phosphorus (P)** | ≤ 0.040 (max) | Residual element kept low to maintain toughness. | | **Sulfur (S)** | ≤ 0.050 (max) | Residual element kept low. This distinguishes it from 11xx free-machining grades and ensures better ductility and weldability. | | **Silicon (Si)** | 0.15 – 0.35 | Deoxidizer during steelmaking; contributes to strength. | | **Iron (Fe)** | Balance | Base element. | **Key International Standard Equivalents:** * **UNS:** G11510 * **AISI/SAE:** 1151 * **ASTM:** A29 (Specification for Steel Bars, Carbon and Alloy, Hot-Wrought) * **AMS:** None specific, but may be supplied to relevant bar specs. * **DIN (Germany):** 1.0535 / C55 (approximate equivalent, Mn differs) * **EN (Europe):** 1.0535 / C55 (approximate equivalent) * **JIS (Japan):** S55C (approximate equivalent) --- ### **2. Typical Physical & Mechanical Properties (Hot Rolled, As-Rolled Condition)** *Note: AISI 1151 is rarely used in the final as-rolled condition. It is typically heat treated (normalized, annealed, or quenched & tempered) for final use. The values below are for reference.* | Property | Hot-Rolled (Typical) | Normalized (Typical) | Quenched & Tempered (Example) | | :--- | :--- | :--- | :--- | | **Density** | 7.85 g/cm³ | 7.85 g/cm³ | 7.85 g/cm³ | | **Tensile Strength** | 620 – 750 MPa | 650 – 800 MPa | 900 – 1200+ MPa | | **Yield Strength** | 345 – 480 MPa | 380 – 550 MPa | 700 – 1000+ MPa | | **Elongation (in 50mm)** | 18% – 25% | 16% – 22% | 10% – 18% | | **Reduction of Area** | 40% – 55% | 40% – 55% | 35% – 50% | | **Brinell Hardness (HB)** | 170 – 210 | 180 – 220 | 300 – 400+ | | **Machinability (As-Rolled/Norm)** | Fair (Compared to 1212=100%) | Fair to Good | Poor (requires hard machining) | --- ### **3. Product Applications** AISI 1151 hot rolled bar is selected for applications requiring good hardenability, strength, and wear resistance after heat treatment. * **Forged Components:** Crankshafts, connecting rods, lever arms, and other high-strength forged parts where good hot workability is needed. * **Shafts and Axles:** High-stress power transmission shafts, axles, and spindles that are routinely through-hardened and tempered. * **Gears and Sprockets:** Medium to heavy-duty gears, pinions, and sprockets that are carburized or through-hardened for wear resistance. * **Wear Parts:** Plow shares, scraper blades, liners, and other parts requiring a hard, wear-resistant surface. * **Agricultural and Off-Road Equipment:** High-stress components like axle shafts, pivot pins, and drive components. * **General High-Strength Machine Parts:** Parts requiring a combination of machinability in the soft state and the ability to be heat treated to high strength levels. --- ### **4. Important Distinctions & Considerations** * **vs. AISI 1141/1144:** The most critical difference is the **low sulfur (<0.050%)**. This makes 1151 **weldable** and suitable for **forging**, but gives it **poorer machinability** than the free-machining grades. 1151 is a **performance/hardenability steel**, while 1141/1144 are **machining steels**. * **vs. AISI 1045/1050:** Has higher manganese content, which provides greater hardenability, allowing thicker sections to be through-hardened effectively. * **Heat Treatment is Standard:** This grade is almost always specified with a required heat treatment (e.g., "1151, Q&T to HRC 28-32" or normalized) for its final application. * **Not a Free-Machining Steel:** Requires appropriate cutting tools, feeds, speeds, and coolants for production machining in its soft state. -:- For detailed product information, please contact sales. -: AISI 1151 Steel, Hot Rolled Bar (UNS G11510) Specification Dimensions Size： Diameter 20-1000 mm Length <5000 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 1151 Steel, Hot Rolled Bar (UNS G11510) Properties -:- For detailed product information, please contact sales. -:

Applications of AISI 1151 Steel Sheet,Plate, Hot Rolled Bar (UNS G11510) -:- For detailed product information, please contact sales. -: Chemical Identifiers AISI 1151 Steel Sheet,Plate, Hot Rolled Bar (UNS G11510) -:- For detailed product information, please contact sales. -:

Packing of AISI 1151 Steel Sheet/Plate, Hot Rolled Bar (UNS G11510) -:- 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 Sheet/Plate 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 1471 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