AISI E9310 Steel, normalized

AISI E9310 Steel, normalized Product Information -:- For detailed product information, please contact sales. -: AISI E9310 Steel, normalized Synonyms -:- For detailed product information, please contact sales. -:

AISI E9310 Steel, normalized Product Information -:- For detailed product information, please contact sales. -: **Product Introduction: AISI E9310 Steel (Normalized Condition)** AISI E9310 is a high-quality, case-hardening, low-alloy nickel-chromium-molybdenum steel. When supplied in the **normalized** condition, it has undergone a specific heat treatment process (heating to above its austenitizing temperature followed by air cooling) to refine its grain structure, improve machinability, and produce a more uniform and consistent microstructure for subsequent operations. This state prepares the material optimally for final machining and its ultimate hardening process (carburizing or carbonitriding). E9310 is renowned for its exceptional strength, toughness, and fatigue resistance in hardened components, making it a premium choice for critical, high-stress parts. --- ### **1. Chemical Composition (Typical, Weight %)** The composition adheres to strict limits to ensure consistent performance. | Element | Content (%) | Element | Content (%) | | :--- | :---: | :--- | :---: | | **Iron (Fe)** | Balance | **Molybdenum (Mo)** | 0.08 - 0.15 | | **Carbon (C)** | 0.08 - 0.13 | **Silicon (Si)** | 0.15 - 0.30 | | **Manganese (Mn)**| 0.45 - 0.65 | **Phosphorus (P)** | ≤ 0.025 | | **Nickel (Ni)** | 3.00 - 3.50 | **Sulfur (S)** | ≤ 0.025 | | **Chromium (Cr)** | 1.00 - 1.40 | | | **Key Note:** The relatively low carbon content facilitates effective case hardening, while the nickel-chromium-molybdenum combination provides deep hardenability and develops a strong, tough core. --- ### **2. Physical & Mechanical Properties (Normalized Condition)** *Note: Properties in the normalized state are intermediate. Final service properties are achieved after case hardening.* * **Density:** 7.85 g/cm³ (0.284 lb/in³) * **Melting Point:** ~1427°C (2600°F) * **Machinability:** Good in the normalized condition (rated at approximately 60-65% compared to 1% carbon steel as 100%). * **Typical Hardness (Normalized):** 269 - 321 HB (Brinell) * **Tensile Strength (Approx.):** 890 - 1035 MPa (130 - 150 ksi) * **Yield Strength (Approx.):** 655 MPa (95 ksi) min * **Elongation (Approx.):** 15% min --- ### **3. Product Applications** E9310 normalized steel is primarily purchased as raw material (bar, forging) for manufacturing high-performance components that will later be case-hardened. Its primary applications are in demanding aerospace, defense, and high-performance mechanical systems: * **Aerospace Gearing:** Critical aircraft engine gears, transmission gears, and gearbox components. * **Power Transmission:** High-load, high-cycle gearing in helicopters, turboprops, and racing applications. * **Critical Fasteners:** High-strength bolts, nuts, and studs for critical assemblies. * **Shafts & Pins:** Heavily stressed shafts, axles, and pins requiring a hard, wear-resistant surface and a tough, fracture-resistant core. * **Military & Defense Components:** Gearing and parts in tracked vehicles, tanks, and other heavy-duty systems. --- ### **4. International & Industry Standards** AISI E9310 is covered by several major international and industry specifications. The normalized condition is typically a mandated or optional supply condition within these specs. * **ASTM A534:** Standard Specification for Carburizing Steels for Anti-Friction Bearings. (E9310 is a common bearing steel). * **AMS 6260:** Aerospace Material Specification for steel bars, forgings, and tubing (0.08C - 0.13C, 1.0Cr - 1.4Cr, 3.0Ni - 3.5Ni, 0.08Mo - 0.15Mo). This is the primary aerospace governing spec. * **AMS 6265:** For steel wire, customarily used for fasteners. * **SAE J404 / J412:** SAE standard chemical compositions for alloy steels (SAE designation: 9310). * **UNS G93106:** Unified Numbering System designation. * **European (EN) Approximate Equivalent:** 1.6657 / 14NiCrMo13-4 (Note: Not an exact match; chemistry differs slightly). * **German (DIN) Approximate Equivalent:** 1.6651 --- ### **5. Processing & Heat Treatment Summary** 1. **Supply Condition:** Material is supplied **Normalized**. 2. **Machining:** Components are machined to near-final dimensions in this softer, normalized state. 3. **Final Heat Treatment:** Components undergo **Case Hardening**: * **Carburizing/Carbonitriding:** To create a high-carbon, wear-resistant surface layer. * **Quenching:** To transform the case into hard martensite. * **Low-Temperature Tempering:** Typically at 150-200°C (300-400°F) to relieve stresses and improve toughness without significantly reducing hardness. 4. **Final Finishing:** Light grinding or honing may be performed after hardening. ### **Conclusion** AISI E9310 steel in the normalized condition represents the optimal starting point for manufacturing the most demanding case-hardened components. Its balanced chemistry, governed by strict aerospace and industrial standards like AMS 6260 and ASTM A534, ensures the development of an unparalleled combination of surface hardness and core toughness after final heat treatment. It is the material of choice where reliability, fatigue life, and performance under extreme stress are non-negotiable. -:- For detailed product information, please contact sales. -: AISI E9310 Steel, normalized Specification Dimensions Size： Diameter 20-1000 mm Length <5762 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 E9310 Steel, normalized Properties -:- For detailed product information, please contact sales. -:

Applications of AISI E9310 Steel, normalized -:- For detailed product information, please contact sales. -: Chemical Identifiers AISI E9310 Steel, normalized -:- For detailed product information, please contact sales. -:

Packing of AISI E9310 Steel, normalized -:- 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 2233 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