AISI 1117 Steel, hot rolled

AISI 1117 Steel, hot rolled, 19-32 mm (0.75-1.25 in) round Product Information -:- For detailed product information, please contact sales. -: AISI 1117 Steel, hot rolled, 19-32 mm (0.75-1.25 in) round Synonyms -:- For detailed product information, please contact sales. -:

AISI 1117 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 1117 Steel, Hot Rolled Round Bar (19-32 mm / 0.75-1.25 in)** --- ### **1. Product Overview** **AISI 1117**, in the **hot rolled** condition, is a standard, free-machining steel supplied in its most economical and readily available form. The hot rolling process involves shaping the steel at temperatures above its recrystallization point, resulting in a product with a characteristic mill scale on its surface and slightly looser dimensional tolerances compared to cold-finished bars. This datasheet details the specifications for **hot rolled round bar** in the **19 mm to 32 mm (0.75 in to 1.25 in)** diameter range. This product is the foundational form of AISI 1117, ideal for applications where high-speed machining is a priority, but where the enhanced mechanical properties, superior surface finish, and tight tolerances of cold drawn material are not strictly required. It serves as a cost-effective starting stock for parts that will undergo significant machining and subsequent heat treatment. **Key Characteristics of Hot Rolled AISI 1117:** * **Cost-Effective:** The most economical form of AISI 1117, offering significant savings over cold finished products for suitable applications. * **Excellent Free-Machining Core:** Retains the inherent, superior machinability of the AISI 1117 chemistry, facilitating high production rates and good chip control. * **Suitable for Forging & Hot Working:** Can be used as feedstock for hot forging operations to create near-net-shape parts prior to machining. * **Immediate Availability:** Widely stocked in standard sizes, ensuring shorter lead times for procurement. --- ### **2. Chemical Composition (Standard % by Weight)** The chemical composition adheres to the standard AISI 1117 specification, engineered for free-machining. | Element | Content (%) | Function & Implication | | :--- | :--- | :--- | | **Carbon (C)** | 0.14 - 0.20 | Provides base strength and is essential for effective case hardening. | | **Manganese (Mn)** | 1.00 - 1.30 | Improves hardenability and combines with sulfur to form beneficial manganese sulfide (MnS) inclusions. | | **Phosphorus (P)** | ≤ 0.040 | Residual element, controlled to minimize cold shortness. | | **Sulfur (S)** | 0.08 - 0.13 | **Critical Machinability Enhancer.** Forms soft MnS inclusions that act as chip breakers during machining. | | **Iron (Fe)** | Balance | Base metal. | --- ### **3. Typical Physical & Mechanical Properties (Hot Rolled Condition)** *Properties are as-rolled and will be lower in strength and hardness but higher in ductility compared to cold drawn material. The presence of mill scale is typical.* | Property | Typical Value (Metric) | Typical Value (Imperial) | | :--- | :--- | :--- | | **Tensile Strength** | 420 - 510 MPa | 61,000 - 74,000 psi | | **Yield Strength (0.2% Offset)** | 310 - 380 MPa | 45,000 - 55,000 psi | | **Elongation (in 50 mm / 2 in)** | 20% - 30% | 20% - 30% | | **Hardness** | 137 - 174 HB | 137 - 174 HB | | **Surface Condition** | **Mill Scale** | A dark, oxidized layer forms during rolling. | | **Dimensional Tolerance** | **Commercial (Wider)** | Governed by standards like ASTM A29. | | **Machinability Rating** | ~ 135% (AISI 1212=100%) | ~ 135% | --- ### **4. International Standards & Cross-References** Hot rolled rounds are supplied to standard commodity specifications for carbon steel bars. | Standard System | Equivalent Designation | Applicable Specification | | :--- | :--- | :--- | | **ASTM / AISI (USA)** | AISI 1117 | ASTM A29 (Standard Spec. for Steel Bars, Carbon) | | **SAE (USA)** | SAE 1117 | SAE J403 | | **UNS (USA)** | G11170 | - | | **DIN (Germany)** | 1.0721 / 11SMn30 | DIN 1651-1 (Hot-rolled) | | **JIS (Japan)** | SUM22* | JIS G4051 (Carbon steels for machine structural use) | | **EN (Europe)** | 11SMn30 | EN 10087 | *Note: JIS SUM22 is a closely related free-machining steel.* --- ### **5. Primary Applications** This hot rolled AISI 1117 is selected for components where cost is a primary driver and where secondary operations (turning, milling, drilling) will remove the mill scale and adjust dimensions. It is commonly used in high-volume production environments. * **General Machined Components:** Studs, bolts, pins, bushings, and spacers where surface finish from the bar is not critical. * **Automotive (Non-Critical):** Bracket components, linkage parts, and fasteners that are machined and then case hardened. * **Industrial Hardware:** Parts for agricultural equipment, conveyors, and general machinery that undergo significant machining. * **Forging Blanks:** Used as feedstock for hot forging into more complex shapes (e.g., lever arms, flanged parts) prior to final machining. * **Repair & Maintenance:** A versatile stock material for fabricating replacement parts in maintenance shops. --- ### **6. Processing Notes** * **Pre-Machining Preparation:** **Mill scale removal is typically required** before precision machining. This can be done via pickling, shot blasting, or turning/grinding the surface layer. * **Heat Treatment:** Well-suited for **carburizing** and **carbonitriding** after machining. The homogeneous hot-rolled structure allows for good case depth consistency. * **Machining:** Offers **excellent machinability**. Use sharp tools and adequate coolant. Expect slightly more variation in cutting forces and tool wear compared to cold drawn stock due to the softer, less uniform surface condition. * **Weldability:** **Poor.** The high sulfur content promotes hot cracking. Fusion welding is not recommended for load-bearing applications. * **Cold Working:** More ductile than cold drawn material but not intended for significant cold forming operations. --- **Disclaimer:** This information is for reference purposes. Hot rolled material exhibits greater variability in dimensions, surface condition, and straightness than cold finished products. For critical applications, verify suitability with your supplier. Always consult the relevant Safety Data Sheets (SDS) before processing. -:- For detailed product information, please contact sales. -: AISI 1117 Steel, hot rolled, 19-32 mm (0.75-1.25 in) round Specification Dimensions Size： Diameter 20-1000 mm Length <4937 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 1117 Steel, hot rolled, 19-32 mm (0.75-1.25 in) round Properties -:- For detailed product information, please contact sales. -:

Applications of AISI 1117 Steel, hot rolled, 19-32 mm (0.75-1.25 in) round -:- For detailed product information, please contact sales. -: Chemical Identifiers AISI 1117 Steel, hot rolled, 19-32 mm (0.75-1.25 in) round -:- For detailed product information, please contact sales. -:

Packing of AISI 1117 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 1408 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