AISI 1022 Steel, cold rolled

AISI 1022 Steel, cold rolled, 25 mm (1 in.) round Product Information -:- For detailed product information, please contact sales. -: AISI 1022 Steel, cold rolled, 25 mm (1 in.) round Synonyms -:- For detailed product information, please contact sales. -:

AISI 1022 Steel, cold rolled, 25 mm (1 in.) round Product Information -:- For detailed product information, please contact sales. -: ### **Product Datasheet: Cold-Rolled AISI 1022 Steel Round Bar (Ø25 mm / 1 inch)** **Product Overview:** This product is a precision 25 mm (1 inch) diameter round bar manufactured from AISI 1022 low-carbon steel through a cold rolling process. Cold rolling involves passing the hot-rolled bar through a series of rollers at room temperature, resulting in a product with superior dimensional accuracy, excellent surface finish, enhanced mechanical properties through work hardening, and tight tolerances. This bar is ideal for applications requiring minimal subsequent machining, high strength-to-weight ratio, and excellent response to heat treatment. --- **1. Chemical Composition (Weight %):** The composition conforms to standard AISI 1022 specifications, optimized for good cold formability and consistent response to work hardening. | Element | Carbon (C) | Manganese (Mn) | Phosphorus (P) | Sulfur (S) | Iron (Fe) | | :--- | :--- | :--- | :--- | :--- | :--- | | **Content** | 0.18 - 0.23 | 0.70 - 1.00 | ≤ 0.040 | ≤ 0.050 | Balance | | **Metallurgical Role** | Solid Solution Strengthener | Enhances Strength & Hardenability | Residual Element (controlled) | Residual Element (controlled) | Base Matrix | *Typical supplementary elements: Silicon (Si) 0.15-0.35% (Deoxidizer).* --- **2. Manufacturing Process & Resultant Properties:** The **cold rolling** process significantly improves the hot-rolled bar's properties through severe plastic deformation at room temperature. This introduces dislocations and refines the grain structure, leading to increased strength and hardness while maintaining a bright, smooth surface. **A. Mechanical Properties (Typical, As-Cold-Rolled / Work-Hardened State):** * **Ultimate Tensile Strength (UTS):** 550 - 700 MPa (80,000 - 101,500 psi) * **Yield Strength (Rp0.2):** 480 - 620 MPa (69,600 - 90,000 psi) *Significantly higher than hot-rolled.* * **Elongation at Break (in 50 mm):** 10% - 15% *Lower than hot-rolled due to work hardening.* * **Hardness:** 170 - 220 HB (Brinell) * **Machinability:** Good (Approx. 70% relative to 1212 steel). The smooth surface and uniform structure improve tool life and finish. * **Surface Roughness (Ra):** ≤ 1.6 µm (63 µin) or better, characteristic of a bright, smooth finish. **B. Physical & Dimensional Properties:** * **Density:** 7.85 g/cm³ (0.284 lb/in³) * **Modulus of Elasticity:** 200 GPa (29 x 10⁶ psi) * **Dimensional Tolerance:** Typically conforms to precise standards such as **±0.10 mm** for diameter, superior to hot-rolled bars. * **Straightness:** Excellent, with minimal bow or camber. * **Surface Condition:** Bright, smooth, and free from heavy scale (may have a light oil film for corrosion protection). --- **3. Primary Applications:** Cold-rolled AISI 1022 is selected for components where precision, good finish, and higher strength in the as-delivered state are critical. * **Shafts and Axles:** For automotive, machinery, and conveyor systems where the bright finish reduces the need for turning. * **Precision Fasteners:** Bolts, studs, and pins manufactured via secondary cold forming or machining. * **Hydraulic and Pneumatic Components:** Pistons rods, cylinders, and valve parts. * **General Machined Parts:** Bushings, spacers, rollers, and dowel pins where tight tolerances and good surface finish are required from the stock material. * **Tooling and Fixturing:** Guide pins, ejector pins, and support pillars. * **Consumer Goods:** Components for bicycles, furniture, and hardware requiring a good cosmetic appearance. --- **4. Conforming International Standards:** | Standard System | Standard Number | Equivalent Designation | Scope / Notes | | :--- | :--- | :--- | :--- | | **UNS/SAE/AISI (USA)** | G10220 | AISI/SAE 1022 | Base Material Specification | | **ASTM (USA)** | **ASTM A108** | Grade 1022 | **Standard Specification for Steel Bars, Carbon, Cold-Finished** | | **ASTM A29/A29M** | Grade 1022 | (Hot-Rolled basis) | General specification, cold-finished bars often ordered to A108. | | **ISO (International)** | ISO 683-1 | 1.1151 | Non-alloy steels for heat treatment. | | **EN (Europe)** | EN 10083-2 | C22E (1.1151) | Steels for quenching and tempering. | | **JIS (Japan)** | JIS G4051 | S22C | Carbon steels for machine structural use. | | **DIN (Germany)** | DIN 1652 | Cf 22 | Cold-rolled steel strips/bars (comparative). | **5. Key Product Advantages:** * **Superior Surface Finish and Dimensional Accuracy:** Minimizes machining allowance, reduces production time and cost. * **Enhanced Strength:** The cold work hardening provides higher yield and tensile strength in the as-supplied state compared to hot-rolled equivalents. * **Excellent Straightness and Uniformity:** Ideal for automated feeding in CNC machining or forming operations. * **Good Response to Heat Treatment:** Can be easily carburized, case hardened, or through-hardened (after annealing if necessary) for enhanced surface wear resistance. * **Consistency:** The controlled cold-working process ensures highly repeatable mechanical properties from batch to batch. --- **Processing Notes & Supply Condition:** * This product is supplied in the **cold-worked (strain-hardened) condition**. For extensive further cold forming (e.g., severe bending, heading), an intermediate annealing process may be required to restore ductility. * The bright surface is susceptible to rust if not properly stored or protected. A light rust preventive oil is standard. * For critical applications, request a **Mill Test Certificate (EN 10204 Type 2.2 or 3.1)** confirming chemistry, mechanical properties, and dimensional checks. -:- For detailed product information, please contact sales. -: AISI 1022 Steel, cold rolled, 25 mm (1 in.) round Specification Dimensions Size： Diameter 20-1000 mm Length <5476 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 1022 Steel, cold rolled, 25 mm (1 in.) round Properties -:- For detailed product information, please contact sales. -:

Applications of AISI 1022 Steel, cold rolled, 25 mm (1 in.) round -:- For detailed product information, please contact sales. -: Chemical Identifiers AISI 1022 Steel, cold rolled, 25 mm (1 in.) round -:- For detailed product information, please contact sales. -:

Packing of AISI 1022 Steel, cold rolled, 25 mm (1 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 1947 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