AISI 1132 Steel, cold drawn

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

AISI 1132 Steel, cold drawn, 19-32 mm (0.75-1.25 in) round Product Information -:- For detailed product information, please contact sales. -: ## **Product Data Sheet: AISI 1132 Steel, Cold Drawn, Round Bar (19-32 mm / 0.75-1.25 in)** --- ### **1. Product Overview** **AISI 1132** is a medium-carbon, **manganese-sulfur alloyed steel** designed to offer a balanced combination of good machinability, moderate strength, and reasonable hardenability. When supplied in the **cold drawn** condition, the material undergoes a precision finishing process that enhances its mechanical properties, dimensional accuracy, and surface quality. This datasheet details the specifications for **cold drawn round bar** in the **19 mm to 32 mm (0.75 in to 1.25 in)** diameter range. This product is engineered as a versatile, general-purpose steel for components that require **better machinability than standard medium-carbon grades (e.g., 1045) and higher strength than low-carbon free-machining grades (e.g., 1117)**, often serving as a "bridge" material between these two categories. It is suitable for parts that may be used in the as-drawn state or heat-treated to achieve higher strength levels. **Key Advantages of Cold Drawn AISI 1132:** * **Enhanced Machinability:** The sulfur addition (typically 0.08-0.13%) provides free-machining characteristics, improving chip formation, reducing cutting forces, and extending tool life compared to non-sulfurized grades of similar carbon content. * **Good Strength-to-Machinability Ratio:** Offers a favorable balance, providing appreciable strength in the cold drawn condition while retaining significantly better machinability than plain carbon steels like 1035 or 1045. * **Improved Dimensional Accuracy & Finish:** The cold drawing process delivers tight tolerances, excellent straightness, and a bright, smooth surface ready for precision machining or direct use. * **Heat Treatable:** With its medium carbon content (0.27-0.34%), it is capable of responding to quenching and tempering to achieve higher strength and hardness levels for more demanding applications. --- ### **2. Chemical Composition (Standard % by Weight)** The composition is designed for a balance of strength, machinability, and moderate hardenability. | Element | Content (%) | Function & Implication | | :--- | :--- | :--- | | **Carbon (C)** | 0.27 - 0.34 | **Primary strength element.** Provides the basis for response to heat treatment (quenching & tempering). Higher than 1117 series for increased strength. | | **Manganese (Mn)** | 1.35 - 1.65 | **Key for hardenability and machinability.** Increases hardenability to allow through-hardening of moderate sections. Combines with sulfur to form beneficial MnS inclusions. | | **Phosphorus (P)** | ≤ 0.040 | Residual element, controlled for toughness. | | **Sulfur (S)** | 0.08 - 0.13 | **Machinability enhancer.** Forms manganese sulfide (MnS) inclusions that act as chip breakers, improving machinability but slightly reducing transverse ductility and weldability. | | **Iron (Fe)** | Balance | Base metal. | --- ### **3. Typical Physical & Mechanical Properties (Cold Drawn Condition)** *Properties are indicative for this diameter range and can vary with the degree of cold work.* | Property | Typical Value (Metric) | Typical Value (Imperial) | | :--- | :--- | :--- | | **Tensile Strength** | 550 - 690 MPa | 80,000 - 100,000 psi | | **Yield Strength (0.2% Offset)** | 480 - 620 MPa | 70,000 - 90,000 psi | | **Elongation (in 50 mm)** | 12% - 20% | 12% - 20% | | **Reduction of Area** | 35% - 50% | 35% - 50% | | **Hardness** | 179 - 229 HB | 179 - 229 HB | | **Machinability Rating** | ~ **85%** (AISI 1212 = 100%) | Good; superior to 1035/1045, but less than 1117/12L14. | | **Surface Condition** | **Bright, Smooth** | Free of mill scale. | --- ### **4. International Standards & Cross-References** This cold drawn product conforms to standards for cold-finished alloy steel bars. | Standard System | Equivalent Designation | Applicable Specification (for Cold Finished Bar) | Notes | | :--- | :--- | :--- | :--- | | **ASTM / AISI (USA)** | AISI 1132 | **ASTM A311** (Stress-Relieved) or **ASTM A108** (for CD bars) | Commonly supplied to ASTM A311 for stress-relieved cold drawn bars. | | **SAE (USA)** | SAE 1132 | SAE J403, J412 | | | **UNS (USA)** | G11320 | - | | | **DIN (Germany)** | **1.0726** (35S20) | DIN 1651 / EN 10277 (Bright steel) | The "S" denotes sulfur content for machinability. | | **BS (UK)** | **212M36** | BS 970 | A closely related free-cutting manganese steel. | | **JIS (Japan)** | - | - | No direct common equivalent; SUM equivalents are lower carbon. | --- ### **5. Primary Applications** Cold drawn AISI 1132 is selected for components that benefit from its combination of good machinability, ready strength, and heat treatability. * **General Machinery Parts:** Shafts, spindles, studs, bolts, and pins that require more strength than low-carbon steels and are often machined in volume. * **Automotive Components:** Clutch parts, gear shafts, steering components, and other non-critical stressed parts that are machined and may be heat-treated. * **Fasteners & Tools:** Higher-strength bolts, set screws, and tool holders (for non-cutting applications). * **Agricultural Equipment:** Pivot pins, linkage components, and other wear parts that can be surface hardened. * **Precision Machined Parts:** Bushings, fittings, and sleeves produced on CNC lathes and screw machines where the bright finish and consistent machining characteristics are valued. --- ### **6. Processing Notes** * **Heat Treatment:** Well-suited for **quenching and tempering**. Typical process: Austenitize at 830-860°C (1525-1580°F), quench in oil, and temper to desired hardness/strength (often to a final hardness of 25-40 HRC). Can also be **induction or flame hardened** for wear surfaces. Stress relieving before hardening complex parts is recommended. * **Machinability:** **Good.** The sulfur addition provides noticeable chip-breaking improvement over non-resulfurized grades. Use sharp tools with positive rake angles. Cutting forces are higher than for 1117 series. * **Weldability:** **Fair to Poor.** The combined effect of medium carbon and sulfur increases the risk of hardening and cracking in the heat-affected zone (HAZ). Pre-heat and post-heat treatments are usually necessary for successful welding; it is not recommended for primary welded structures. * **Cold Forming:** Moderate. The cold drawn condition is already work-hardened. Further bending or forming may require annealing for severe operations. * **Surface Preparation:** The bright drawn surface is suitable for direct plating or painting with minimal preparation. --- **Disclaimer:** The information provided is for reference purposes. Mechanical properties can vary with diameter and manufacturer's processing parameters. For critical applications, verify suitability with your material supplier. Always consult the relevant Safety Data Sheets (SDS) and material certifications before processing. -:- For detailed product information, please contact sales. -: AISI 1132 Steel, cold drawn, 19-32 mm (0.75-1.25 in) round Specification Dimensions Size： Diameter 20-1000 mm Length <4950 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, cold drawn, 19-32 mm (0.75-1.25 in) round Properties -:- For detailed product information, please contact sales. -:

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

Packing of AISI 1132 Steel, cold drawn, 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 1421 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