AISI 1095 Steel, hot rolled

AISI 1095 Steel, hot rolled, 19-32 mm (0.75-1.25 in) round Product Information -:- For detailed product information, please contact sales. -: AISI 1095 Steel, hot rolled, 19-32 mm (0.75-1.25 in) round Synonyms -:- For detailed product information, please contact sales. -:

AISI 1095 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 1095 Steel, Hot-Rolled Round Bar (19-32 mm / 0.75-1.25 in)** #### **1. Overview** AISI 1095 (UNS G10950) is the highest standard carbon steel in the AISI 10xx series, supplied in the common hot-rolled round bar form. Renowned for its exceptional potential to achieve maximum hardness, wear resistance, and elastic limit after proper heat treatment, it is a benchmark material for high-performance applications. In its as-rolled condition, it features a characteristic mill-scaled surface and a pearlitic microstructure, offering a practical balance of moderate strength, fair machinability, and low cost as a raw material. This product serves as the essential feedstock for tools, blades, and springs where the ultimate performance from a non-alloy steel is demanded. --- #### **2. Chemical Composition (AISI/SAE Standard)** | Element | Content (%) | | :--- | :--- | | **Carbon (C)** | **0.90 - 1.03** | | **Manganese (Mn)** | 0.30 - 0.50 | | **Phosphorus (P)** | ≤ 0.040 | | **Sulfur (S)** | ≤ 0.050 | | **Silicon (Si)** | 0.15 - 0.35 | | **Iron (Fe)** | Balance | **Key Distinction:** The carbon content is at the absolute peak of standard carbon steels. The relatively low manganese range distinguishes it from similar high-carbon grades (like 1084), resulting in slightly shallower hardenability but maximizing achievable surface hardness and carbon availability for carbide formation. --- #### **3. Typical Physical & Mechanical Properties (As-Hot Rolled)** *Properties are for the "black," as-rolled state prior to any further processing.* | Property | Typical Value / Description | | :--- | :--- | | **Condition** | Hot-Rolled (Pearlitic Microstructure with Proeutectoid Cementite) | | **Density** | 7.85 g/cm³ (0.284 lb/in³) | | **Modulus of Elasticity** | 190-210 GPa (27.5-30.5 x 10⁶ psi) | | **Tensile Strength** | **720 - 900 MPa (104 - 131 ksi)** | | **Yield Strength (0.2% Offset)** | **400 - 520 MPa (58 - 75 ksi)** | | **Elongation (in 50 mm)** | **~ 9 - 12%** | | **Reduction in Area** | **~ 15 - 20%** | | **Hardness** | **212 - 269 HB** (Brinell) | | **Machinability** | **Fair to Poor (~40% of AISI 1212).** The high carbon and abrasive pearlitic/cementite structure rapidly wear cutting tools. Machinability improves significantly after annealing. | | **Surface Finish** | Standard hot-rolled finish with adherent mill scale. A decarburized surface layer is typically present. | --- #### **4. Key Characteristics & Heat Treatment Response** * **Ultimate Hardness Potential:** The defining feature. AISI 1095 can achieve the highest possible hardness (~66-68 HRC) of any common plain carbon steel, resulting in exceptional edge retention and wear resistance. * **High Elastic Limit:** When properly quenched and tempered (e.g., to a spring temper), it develops an extremely high yield strength, making it suitable for demanding spring applications. * **Processing Sensitivity:** Requires precise and skilled heat treatment. The high carbon content increases risks: * **Quench Cracking:** High susceptibility due to severe martensitic transformation stresses. * **Retained Austenite & Grain Growth:** Risk increases if austenitizing temperature or time is excessive. * **Limited Hardenability Depth:** Due to low manganese, full through-hardening is typically limited to sections under **~10 mm (0.4 in)** with an oil quench. The 19-32 mm round will develop a significant hardness gradient when quenched. * **Very Poor Weldability and Ductility:** **Not recommended for welding.** Exhibits low ductility and impact toughness in the as-rolled and hardened states. --- #### **5. Primary Product Applications** AISI 1095 hot-rolled bar is a specialized feedstock for components requiring extreme performance. * **Premium Cutting Tools & Blades:** The industry standard for **high-end knives (custom, tactical, bushcraft), straight razors, plane blades, and scrapers** where supreme edge retention is critical. * **High-Stress Springs:** Used for **flat springs (leaf springs), torsion bars, and snap springs** where maximum elastic limit in thin sections is required. * **Hand Tools & Striking Tools:** For **chisels, punches, and cold chisels** that require extreme surface hardness. * **Wear Parts:** Components subject to severe abrasion where hardness is prized over impact resistance. * **Tooling & Die Components:** For non-precision punches and wear inserts. --- #### **6. Relevant International & Industry Standards** | Standard System | Standard Designation | Title / Scope | | :--- | :--- | :--- | | **AISI / SAE / UNS (USA)** | **1095, SAE J403, UNS G10950** | Standard Grade Designation | | **ASTM (USA)** | **ASTM A29/A29M** | Standard Specification for Steel Bars, Carbon and Alloy, Hot-Wrought | | **ASTM (USA)** | **ASTM A576** | Specification for Steel Bars, Carbon, Hot-Wrought, Special Quality | | **ASTM (USA)** | **ASTM A682** | Specification for Steel, Strip, High-Carbon, Cold-Rolled, Spring Quality | | **DIN / EN (Germany/EU)** | **1.1545 / C100W2** | EN 10083-2: Steels for quenching and tempering. | | **JIS (Japan)** | **SWRH95A / SWRH100A** | High Carbon Steel Wire Rods. | | **GB (China)** | **T10(A) / 95#** | Tool Steel (GB/T 1298) or Quality Carbon Structural Steel (GB/T 699). | --- ### **Manufacturing Pathway & Selection Guide** 1. **Material Selection:** Choose AISI 1095 when the application demands the **absolute maximum hardness or elastic limit** from a carbon steel, typically for blades or springs in thin sections. 2. **Forming:** Shape via **hot forging, machining, or hot bending**. **Cold forming is not feasible** without a spheroidizing anneal. 3. **Heat Treatment (Critical & Requires High Expertise):** * **Preparation:** Normalize or anneal to refine grain structure. * **Austenitize:** **~770-790°C (1420-1455°F).** Precise control is critical. Use a controlled atmosphere to prevent decarb. * **Quench:** **Warm, agitated oil (40-60°C)** is standard. Water quenching is very high-risk. * **Temper:** **Immediately.** Double tempering is recommended. Temperatures: **150-200°C for max hardness**, **300-450°C for springs/tough tools**. 4. **Finishing:** Final grinding to remove decarb layer and achieve final dimensions. **Summary:** **AISI 1095 hot-rolled round bar is the definitive high-carbon steel for ultimate performance in hardness and strength.** It is selected by craftsmen and engineers who seek to exploit the **outer limits of plain carbon steel capability**. Its value is realized only through skilled and meticulous heat treatment. This material offers no compromise on potential performance but demands the highest level of processing respect and is most effective in controlled, thinner cross-sections. It is the benchmark for bladesmiths and spring makers who accept its challenges for its unrivaled results. -:- For detailed product information, please contact sales. -: AISI 1095 Steel, hot rolled, 19-32 mm (0.75-1.25 in) round Specification Dimensions Size： Diameter 20-1000 mm Length <4906 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 1095 Steel, hot rolled, 19-32 mm (0.75-1.25 in) round Properties -:- For detailed product information, please contact sales. -:

Applications of AISI 1095 Steel, hot rolled, 19-32 mm (0.75-1.25 in) round -:- For detailed product information, please contact sales. -: Chemical Identifiers AISI 1095 Steel, hot rolled, 19-32 mm (0.75-1.25 in) round -:- For detailed product information, please contact sales. -:

Packing of AISI 1095 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 1377 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