AISI 1132 Steel, hot rolled

AISI 1132 Steel, hot rolled, 19-32 mm (0.75-1.25 in) round Product Information -:- For detailed product information, please contact sales. -: AISI 1132 Steel, hot rolled, 19-32 mm (0.75-1.25 in) round Synonyms -:- For detailed product information, please contact sales. -:

AISI 1132 Steel, hot rolled, 19-32 mm (0.75-1.25 in) round Product Information -:- For detailed product information, please contact sales. -: ## **Product Data Sheet: AISI 1132 Steel, Hot Rolled Round Bar (19-32 mm / 0.75-1.25 in)** --- ### **1. Product Overview** **AISI 1132** is a medium-carbon, **resulfurized steel** engineered to offer a practical balance between improved machinability and reasonable mechanical strength/hardenability. Supplied in the **hot rolled** condition, this product is shaped at high temperatures, resulting in a bar with a characteristic **mill scale** surface and commercial dimensional tolerances. This form represents the most economical and fundamental supply state for this versatile grade. This datasheet covers **hot rolled round bar** in the **19 mm to 32 mm (0.75 in to 1.25 in)** diameter range. This size is commonly used as stock material for components that will undergo significant secondary processing such as forging, machining, and heat treatment. AISI 1132 is specifically chosen when better machinability than standard medium-carbon grades (like 1035 or 1045) is required, but where the very high sulfur content and associated limitations of grades like 1119 are undesirable. **Key Characteristics of Hot Rolled AISI 1132:** * **Enhanced Machinability:** The sulfur addition (0.08-0.13%) provides free-machining characteristics, leading to better chip breakability, reduced cutting forces, and improved surface finish in machining compared to non-resulfurized steels of similar carbon content. * **Good Strength and Hardenability:** The medium carbon content (0.27-0.34%) combined with elevated manganese (1.35-1.65%) provides a solid foundation for strength and allows the material to be effectively through-hardened via quenching and tempering. * **Cost-Effective Versatility:** As a hot-rolled product, it offers the lowest cost entry point for utilizing this grade, suitable for a wide range of general engineering applications. * **Suitable for Hot Working:** An excellent choice as feedstock for hot forging operations where its chemistry supports good formability at high temperatures and subsequent heat treatment. --- ### **2. Chemical Composition (Standard % by Weight)** The composition is balanced to provide strength, moderate hardenability, and free-machining properties. | Element | Content (%) | Function & Implication | | :--- | :--- | :--- | | **Carbon (C)** | 0.27 - 0.34 | Provides core strength and is the primary element enabling response to quenching and tempering. | | **Manganese (Mn)** | 1.35 - 1.65 | **Critical for Hardenability.** Significantly increases the depth of hardening achievable upon quenching. Also combines with sulfur to form beneficial manganese sulfide (MnS) inclusions. | | **Phosphorus (P)** | ≤ 0.040 | Residual element, kept low to maintain toughness. | | **Sulfur (S)** | 0.08 - 0.13 | **Machinability Enhancer.** Forms MnS inclusions that act as chip breakers during machining, improving machinability but slightly reducing transverse ductility and weldability. | | **Iron (Fe)** | Balance | Base metal. | --- ### **3. Typical Physical & Mechanical Properties (Hot Rolled Condition)** *Properties are as-rolled and can vary based on the mill's finishing temperature and cooling practice. The presence of mill scale is standard.* | Property | Typical Value (Metric) | Typical Value (Imperial) | | :--- | :--- | :--- | | **Tensile Strength** | 490 - 620 MPa | 71,000 - 90,000 psi | | **Yield Strength (0.2% Offset)** | 345 - 480 MPa | 50,000 - 70,000 psi | | **Elongation (in 50 mm / 2 in)** | 18% - 25% | 18% - 25% | | **Reduction of Area** | 40% - 55% | 40% - 55% | | **Hardness** | 156 - 207 HB | 156 - 207 HB | | **Surface Condition** | **Mill Scale** | Dark, oxidized layer from hot rolling. | | **Machinability Rating** | **~ 75-80%** (AISI 1212 = 100%) | Good; superior to 1035/1045. | | **Modulus of Elasticity** | 200 GPa | 29,000 ksi | --- ### **4. International Standards & Cross-References** Hot rolled AISI 1132 conforms to standard specifications for hot-rolled carbon and alloy steel bars. | Standard System | Equivalent Designation | Applicable Specification | | :--- | :--- | :--- | | **ASTM / AISI (USA)** | AISI 1132 | **ASTM A29** (Standard Specification for Steel Bars, Carbon) | | **SAE (USA)** | SAE 1132 | SAE J403, J412 | | **UNS (USA)** | G11320 | - | | **DIN (Germany)** | **1.0726** (35S20) | DIN 1651-1 / EN 10087 | | **BS (UK)** | **212M36** | BS 970 | | **JIS (Japan)** | - | No direct common equivalent. SUM43 or SWRCH33K may be considered for similar function. | --- ### **5. Primary Applications** Hot rolled AISI 1132 is selected as a versatile raw material for parts that require good machinability and the potential for heat treatment. * **General Machined Components:** Shafts, pins, studs, gears, and sprockets that are machined from bar stock and may be used as-machined or heat-treated. * **Forging Blanks:** A prime application. Used as stock for hot forging into more complex shapes like levers, connecting rods, and hand tools that will subsequently be heat treated (quench & temper). * **Automotive Parts:** Non-critical stressed components such as bracket arms, linkage parts, and transmission components. * **Agricultural & Industrial Machinery:** Wear parts, axle shafts, and pins that can be surface hardened (induction or flame) for improved durability. * **Fastener Stock:** Used for manufacturing higher-strength bolts and fasteners, often after subsequent cold drawing or forging. --- ### **6. Processing Notes** * **Heat Treatment:** Well-suited for **quenching and tempering**. Typical process: Austenitize at 830-860°C (1525-1580°F), quench in oil (water for simple shapes/small sections, with caution), and temper to the desired hardness/strength (e.g., 25-40 HRC). Also suitable for **surface hardening** processes like induction hardening. * **Machining:** **Good machinability.** The sulfur content provides chip-breaking action, but the medium carbon content makes the material stronger and tougher than low-carbon free-machining steels. Use sharp, robust tools and adequate coolant. * **Weldability:** **Fair to Poor.** The combination of medium carbon and sulfur increases susceptibility to cracking in the heat-affected zone (HAZ). Welding is not recommended for critical applications. If necessary, use low-hydrogen electrodes, high pre-heat (200-300°C / 400-600°F), and post-weld stress relief. * **Surface Preparation:** **Mill scale must be removed** prior to precision machining, heat treatment, or plating. This is typically done via shot blasting, pickling, or turning. * **Cold Forming:** Fair ductility in the as-rolled state allows for moderate bending. For severe cold forming, an annealing treatment is recommended to soften the material. --- **Disclaimer:** The information provided is for general reference. Properties and surface condition can vary between manufacturing lots. For critical applications, testing of the specific material and consultation with the supplier is recommended. Always consult the relevant Safety Data Sheets (SDS) and material certifications before use. -:- For detailed product information, please contact sales. -: AISI 1132 Steel, hot rolled, 19-32 mm (0.75-1.25 in) round Specification Dimensions Size： Diameter 20-1000 mm Length <4952 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 1132 Steel, hot rolled, 19-32 mm (0.75-1.25 in) round Properties -:- For detailed product information, please contact sales. -:

Applications of AISI 1132 Steel, hot rolled, 19-32 mm (0.75-1.25 in) round -:- For detailed product information, please contact sales. -: Chemical Identifiers AISI 1132 Steel, hot rolled, 19-32 mm (0.75-1.25 in) round -:- For detailed product information, please contact sales. -:

Packing of AISI 1132 Steel, hot rolled, 19-32 mm (0.75-1.25 in) round -:- 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 1423 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