AISI 1010 Steel, hot rolled

AISI 1010 Steel, hot rolled bar, 19-32 mm (0.75-1.25 in) round or thickness Product Information -:- For detailed product information, please contact sales. -: AISI 1010 Steel, hot rolled bar, 19-32 mm (0.75-1.25 in) round or thickness Synonyms -:- For detailed product information, please contact sales. -:

AISI 1010 Steel, hot rolled bar, 19-32 mm (0.75-1.25 in) round or thickness Product Information -:- For detailed product information, please contact sales. -: ## **Product Specification: AISI 1010 Low Carbon Steel, Hot-Rolled Bar** ### **Product Designation** * **Standard Name:** AISI 1010 / SAE 1010 * **UNS Number:** G10100 * **Condition:** **Hot-Rolled (As-Rolled)** * **Product Form:** **Round Bar** (or equivalent thickness in other sections) * **Size Range:** **19 mm to 32 mm (0.75 inch to 1.25 inch)** in diameter or thickness * **Surface:** Characteristic blue/black mill scale. * **Key Feature:** A versatile, general-purpose mild steel offering a balanced combination of strength, ductility, weldability, and low cost. ### **Overview** AISI 1010 hot-rolled bar is one of the most common and economical forms of low-carbon steel. Produced by rolling at high temperatures, it provides good material integrity and consistent properties within the 19-32 mm (0.75-1.25 in) cross-section. This grade offers a **slight but meaningful increase in strength over 1008** due to its higher carbon content, while retaining the excellent weldability and formability that define mild steel. It is a fundamental stock material for fabrication, forging, and machining where ultimate precision and surface finish are not required in the as-supplied state. --- ### **1. Chemical Composition (Typical % by Weight, AISI/SAE Standard)** | Element | Content (%) | Role & Effect | | :--- | :--- | :--- | | **Carbon (C)** | 0.08 - 0.13 | **Primary strength element.** Higher than 1008, providing improved machinability and a better base for case hardening, while keeping weldability excellent. | | **Manganese (Mn)** | 0.30 - 0.60 | Enhances strength and hardenability slightly; aids in deoxidation. | | **Phosphorus (P)** | 0.040 max | Impurity; controlled for formability. | | **Sulfur (S)** | 0.050 max | Impurity; standard level. Can be increased in "resulturized" free-machining variants. | | **Iron (Fe)** | Balance | Primary constituent. | --- ### **2. Physical & Mechanical Properties (Hot-Rolled Condition, 19-32 mm)** **A. Physical Properties** * **Density:** 7.87 g/cm³ (0.284 lb/in³) * **Elastic Modulus (E):** 200 GPa (29,000 ksi) * **Poisson's Ratio:** 0.29 * **Thermal Conductivity:** ~61 W/m·K (High) * **Coefficient of Thermal Expansion:** 11.7 x 10⁻⁶ /K * **Magnetic Properties:** Strongly ferromagnetic. **B. Mechanical Properties (Typical, As-Hot-Rolled)** *Properties are generally isotropic due to hot working.* * **Yield Strength (0.2% Offset):** 275 - 365 MPa (40 - 53 ksi) * **Tensile Strength:** 400 - 500 MPa (58 - 73 ksi) * **Elongation in 50 mm:** **20% - 30%** (Good ductility) * **Hardness (Brinell):** 110 - 150 HB * **Surface Finish:** Covered in a tenacious, dark mill scale that must be removed for finishing, painting, or precision welding. * **Dimensional Tolerance:** Meets standard hot-rolled bar tolerances (e.g., ASTM A29), suitable for general fabrication. * **Machinability:** **Fair to Good.** The optimal carbon content provides a good balance, reducing the gumminess of lower-carbon steels and offering better chip formation than 1008. It is often used as a machinability benchmark. * **Hardenability:** **Very Low.** Cannot be through-hardened but is an excellent candidate for **case hardening (carburizing)** to create a hard, wear-resistant surface. --- ### **3. Product Applications** Hot-rolled AISI 1010 bar in this size range is a workhorse material across multiple industries for parts requiring strength, weldability, and economy. * **General Fabrication & Structural Components:** * Frames, brackets, supports, and guard rails for machinery and structures. * Base material for welded frames in agricultural equipment, trailers, and material handling systems. * **Forging Stock:** * An ideal and cost-effective material for hot-forged parts like levers, links, hooks, and simple tools. * **Shafts, Pins, and Axles (Non-Critical):** * Pivot pins, hinge pins, light-duty axles, and rollers where high precision is not required. * **Construction & Hardware:** * Anchor bolts, tie rods, and rebar for light concrete work. * Raw material for standard fasteners, hinges, and mounting plates. * **Machined Parts (After Descaling):** * Components like bushings, spacers, and flanges where the final dimensions are achieved by machining away the scaled surface. * **Case Hardening Applications:** * Commonly used as a substrate for carburized parts such as gears, camshafts, and wear surfaces that require a hard case over a tough, ductile core. --- ### **4. International Standards & Designations** | Standard System | Designation | Notes / Key Comparison | | :--- | :--- | :--- | | **SAE / AISI (USA)** | **SAE 1010 / AISI 1010** | The standard designation. | | **UNS (USA)** | **G10100** | Unified Numbering System. | | **ASTM (USA)** | **ASTM A36** (Structural), **ASTM A575** (Merchant Quality), **ASTM A576** (Special Quality, Grade 1015/1020 often specified). | Frequently supplied to these broader ASTM specifications which cover similar property ranges. | | **DIN / EN (Germany/EU)** | **S235JR (1.0038), C15 (1.0401)** | **S235JR** is the common structural steel equivalent. **C15** is a quality steel for quenching and tempering with similar carbon content. | | **JIS (Japan)** | **SS330, SS400, S10C** | **SS330/400** for structural use; **S10C** (JIS G4051) is the direct equivalent for steel bars. | | **GB (China)** | **Q235B, 10, 15** | **Q235B** is the dominant structural steel equivalent. **10** or **15** are grades for quality carbon structural steel. | | **ISO** | **ISO 630-2: E235B, ISO 683-1: C15E** | E235B for structural steel; C15E for engineering steel. | --- ### **Key Processing Notes** 1. **Scale Removal:** Mandatory for most finishing operations. Achieved via abrasive blasting, acid pickling, or machining. 2. **Weldability:** **Excellent.** No pre-heat or post-heat treatment required for most welding processes. The Heat-Affected Zone (HAZ) does not harden. 3. **Cold Bending/Forming:** Good formability. Mill scale will flake off during bending. 4. **Case Hardening:** A highly valuable secondary process. The low carbon core remains tough after carburizing, while the surface becomes hard (up to ~65 HRC). ### **Summary** **AISI 1010 hot-rolled round bar (19-32 mm) is a foundational, cost-effective material that delivers a reliable balance of properties for a vast array of industrial applications.** Its slightly higher carbon content provides a tangible benefit in strength and machinability over the 10xx series, making it a preferred choice for both fabrication and as a substrate for case-hardened components. While lacking the precision of cold-drawn products, its economy, availability, and versatile performance solidify its role as a staple in workshops, foundries, and fabrication yards worldwide. Its properties align closely with common international structural grades like **ASTM A36, EN S235JR, and GB Q235B**, ensuring its global relevance. -:- For detailed product information, please contact sales. -: AISI 1010 Steel, hot rolled bar, 19-32 mm (0.75-1.25 in) round or thickness Specification Dimensions Size： Diameter 20-1000 mm Length <4743 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 1010 Steel, hot rolled bar, 19-32 mm (0.75-1.25 in) round or thickness Properties -:- For detailed product information, please contact sales. -:

Applications of AISI 1010 Steel, hot rolled bar, 19-32 mm (0.75-1.25 in) round or thickness -:- For detailed product information, please contact sales. -: Chemical Identifiers AISI 1010 Steel, hot rolled bar, 19-32 mm (0.75-1.25 in) round or thickness -:- For detailed product information, please contact sales. -:

Packing of AISI 1010 Steel, hot rolled bar, 19-32 mm (0.75-1.25 in) round or thickness -:- 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 1214 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