AISI Type A10 Tool Steel Wire

AISI Type A10 Tool Steel Wire Product Information -:- For detailed product information, please contact sales. -: AISI Type A10 Tool Steel Wire Synonyms -:- For detailed product information, please contact sales. -:

AISI Type A10 Tool Steel Product Information -:- For detailed product information, please contact sales. -: --- ### **Product Introduction: AISI Type A10 Tool Steel** **Overview** AISI Type A10 is a unique, **air-hardening, graphitic tool steel** that belongs to the family of medium-alloy cold work steels. Its defining characteristic is the intentional addition of **approximately 1.25-1.75% graphite** to its microstructure. This free graphite acts as a solid lubricant, imparting exceptional **anti-galling (anti-seizing) properties**, improved machinability in the annealed state, and good wear resistance under sliding or rubbing conditions. While its overall wear resistance is lower than high-carbide steels like A2 or D2, A10 excels in applications where metal-to-metal contact and material pickup are primary failure modes. --- ### **Chemical Composition (Typical Weight %)** The composition is designed to provide good hardenability and to support the formation of stable graphite particles. | Element | Content (%) | | :--- | :--- | | Carbon (C) | 1.25 - 1.50 | | Graphite (C_gr) | ~1.25 - 1.75 (derived from total carbon) | | Manganese (Mn) | 1.60 - 2.10 | | Silicon (Si) | 1.00 - 1.50 | | Chromium (Cr) | 1.25 - 1.75 | | Molybdenum (Mo) | 1.00 - 1.50 | | Nickel (Ni) | 1.55 - 2.05 | | Vanadium (V) | 0.90 - 1.10 | | Sulfur (S) | ≤ 0.03 | | Phosphorus (P) | ≤ 0.03 | | **Iron (Fe)** | **Balance** | **Key Role of Elements:** * **Graphite (C_gr):** Provides self-lubricating properties, reducing friction and preventing material adhesion (galling). Also enhances machinability. * **Manganese, Chromium, Molybdenum, Nickel:** Provide deep and uniform air-hardening characteristics, good through-hardening, and contribute to strength and toughness. * **Vanadium:** Refines grain size and forms hard carbides, improving wear resistance and tempering stability. * **Silicon:** Promotes graphitization and acts as a deoxidizer. --- ### **Physical & Mechanical Properties** *Note: Properties are highly dependent on heat treatment condition.* | Property | Typical Value / Description | | :--- | :--- | | **Density** | ~7.60 g/cm³ (Slightly lower due to graphite content) | | **Hardness (Annealed)** | 241 - 269 HB (Brinell) | | **Hardness (Hardened & Tempered)** | 57 - 62 HRC (Commonly used at 58-60 HRC) | | **Wear Resistance** | **Good**, but not as high as high-carbon, high-chromium steels (e.g., D2, A11). Excellent in applications involving sliding friction due to anti-galling properties. | | **Toughness** | **Good to Very Good.** Better than many other tool steels of similar hardness due to its nickel content and graphite-lubricated microstructure. | | **Dimensional Stability** | **Excellent.** As an air-hardening steel, it exhibits minimal distortion and size change during heat treatment compared to oil-hardening grades. | | **Machinability (Annealed)** | **Very Good.** The free graphite acts as a chip breaker, resulting in short, broken chips and reduced tool wear. One of the most machinable tool steels. | | **Grindability** | Fair. Softer than many tool steels, but the graphite can sometimes cause loading of grinding wheels. | | **Anti-Galling / Anti-Seizing** | **Exceptional.** This is its key advantage, making it ideal for forming applications on sticky materials like aluminum, brass, and stainless steel. | --- ### **Heat Treatment** * **Annealing:** Heat to 790-815°C (1450-1500°F), slow furnace cool. Results in a spheroidized structure with free graphite for optimal machinability. * **Stress Relieving:** 650-675°C (1200-1250°F), then air cool. * **Hardening:** Preheat thoroughly. Austenitize at **815-845°C (1500-1550°F)**. **Quench in still or forced air.** Lower hardening temperatures help retain graphite. * **Tempering:** Temper immediately after quenching. Typically tempered at 175-540°C (350-1000°F) for 2+ hours. For high hardness (58-60 HRC), temper in the 175-205°C (350-400°F) range. Higher tempering temperatures increase toughness but reduce hardness. --- ### **Product Applications** AISI A10 is selected for applications where its unique self-lubricating properties and dimensional stability are critical. 1. **Forming & Drawing Dies:** Especially for **aluminum, brass, copper, and stainless steel**, where galling and material pickup are common problems. 2. **Knurling Tools, Burnishing Tools & Rolls:** The graphite helps prevent workpiece material from welding to the tool surface. 3. **Plastic Molds & Cavities:** For abrasive or sticky plastic resins. The graphite can also aid in part release. 4. **Thread Rolling Dies & Gear Molding Dies:** Where high surface finish and freedom from seizing are required. 5. **Gauges, Arbors, and Precision Parts:** Where dimensional stability after heat treatment is paramount. 6. **Punches and Shear Blades:** For certain non-ferrous materials where a sharp edge and anti-sticking properties are needed. 7. **Wear Plates and Guides:** In environments with sliding friction. --- ### **International Standards & Cross-Reference** AISI Type A10 is recognized under several international standards. | Standard | Designation | Equivalent / Similar Grade | | :--- | :--- | :--- | | **AISI/SAE (USA)** | **Type A10** | - | | **UNS (USA)** | **T30110** | - | | **ASTM (USA)** | A681 | Grade A10 | | **Europe (EN)** | No direct common equivalent. | - | | **Germany (DIN)** | ~1.2365 (*approximate, not graphite*) | 55NiCrMoV7 (Different composition) | | **Japan (JIS)** | No direct common equivalent. | - | **Important Note:** A10 is a relatively unique, graphite-bearing steel. There are **no perfect international equivalents** in common EN, DIN, or JIS standards. The closest matches in *function* (air-hardening, good toughness) might be steels like AISI A6 or certain pre-hardened mold steels, but they lack the critical graphite component. --- ### **Key Advantages & Considerations** **Advantages:** * **Superior Anti-Galling Properties:** Unmatched performance in forming sticky materials. * **Excellent Machinability (Annealed):** Reduces fabrication time and cost. * **Good Dimensional Stability:** Air hardening ensures precise parts. * **Good Combination of Wear and Toughness:** Reliable performance in many demanding applications. **Considerations:** * **Not for Extreme Abrasion:** Not the best choice for highly abrasive applications (choose A2, D2, or A11 instead). * **Limited High-Temperature Use:** Graphite can oxidize, limiting its use in high-temperature applications. * **Specialized Steel:** May have higher cost and limited availability compared to standard grades like A2 or O1. **Conclusion** AISI Type A10 is a specialized, problem-solving tool steel. Its unique graphite-bearing composition makes it the premier choice for **applications prone to galling and seizing**. When the failure mode involves material adhesion rather than pure abrasion, A10 offers extended tool life, reduced downtime for cleaning, and superior surface finish on the workpiece. Its excellent machinability and dimensional stability further solidify its role as a valuable material for precision tooling in challenging forming operations. -:- For detailed product information, please contact sales. -: AISI Type A10 Tool Steel Specification Dimensions Size： Diameter 20-1000 mm Length <6658 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 Type A10 Tool Steel Properties -:- For detailed product information, please contact sales. -:

Applications of AISI Type A10 Tool Steel Wire -:- For detailed product information, please contact sales. -: Chemical Identifiers AISI Type A10 Tool Steel Wire -:- For detailed product information, please contact sales. -:

Packing of AISI Type A10 Tool Steel Wire -:- 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 Wire 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 3129 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