Aermet 100, Rod,UNS K92580,E FORU

British Specs:，American Specs:AMS 6532 Bar and Forgings，German Specs:

### **Product Introduction: Aermet® 100 Rod (UNS K92580)** **Aermet® 100 Rod** is an ultra-high-strength, martensitic steel bar product specifically engineered for the most demanding structural applications. Representing the pinnacle of metallurgical performance, this alloy delivers an unparalleled combination of ultimate tensile strength, exceptional fracture toughness, and good stress corrosion cracking resistance in a readily machinable form factor. Supplied as hot-finished or cold-drawn rod, this product is the preferred starting material for machining critical components in aerospace, defense, and high-performance motorsports where weight savings and absolute reliability under extreme loads are non-negotiable. --- #### **1. Chemical Composition** The properties of Aermet 100 are derived from a precise, aerospace-grade chemistry based on a nickel-cobalt-steel system. **Typical Chemical Composition (Weight %):** | Element | Content (%) | Role in the Alloy | | :--- | :---: | :--- | | **Iron (Fe)** | Balance | Base Element | | **Nickel (Ni)** | 11.0 - 12.5 | Enhances toughness and hardenability. | | **Cobalt (Co)** | 13.0 - 14.0 | Promotes secondary hardening. | | **Chromium (Cr)** | 3.0 - 3.4 | Provides hardenability and moderate corrosion resistance. | | **Molybdenum (Mo)** | 1.2 - 1.4 | Forms fine carbides for secondary hardening. | | **Carbon (C)** | 0.21 - 0.25 | Primary strengthening element. | | **Manganese (Mn)** | ≤ 0.10 | - | | **Silicon (Si)** | ≤ 0.10 | - | | **Phosphorus (P)** | ≤ 0.005 | Impurity control. | | **Sulfur (S)** | ≤ 0.005 | Impurity control. | *Composition conforms to AMS 6532 and other major specifications.* --- #### **2. Physical & Mechanical Properties** The following properties are typical for Aermet 100 Rod in the final heat-treated (aged) condition. The material is supplied in an annealed condition to facilitate machining. **A. Mechanical Properties (After Heat Treatment - Typical):** * **Tensile Ultimate Strength:** **1,725 - 1,930 MPa** (250 - 280 ksi) * **Tensile Yield Strength (0.2% Offset):** **1,585 - 1,725 MPa** (230 - 250 ksi) * **Elongation (in 4D):** **10 - 14%** * **Reduction in Area:** **50 - 60%** * **Hardness:** **50 - 54 HRC** * **Fracture Toughness (K_Ic):** **110 - 130 MPa√m** **B. Physical Properties:** * **Density:** 7.86 g/cm³ (0.284 lb/in³) * **Modulus of Elasticity (E):** 200 GPa (29 x 10⁶ psi) * **Poisson's Ratio:** 0.30 * **Electrical Resistivity:** ~ 0.40 μΩ·m * **Thermal Conductivity:** ~ 25 W/m·K --- #### **3. Product Applications** Aermet 100 Rod is the ideal raw material for machining high-integrity components that are subject to extreme static and dynamic loads. * **Aerospace:** * **Landing Gear Components:** Pistons, torsion links, actuators, and critical pins for carrier-based and commercial aircraft. * **Airframe Parts:** High-stress fittings, brackets, and latch pins. * **Helicopter Dynamic Components:** Rotor head pins and swashplate components. * **Defense:** * **Armor Penetrators:** Kinetic energy penetrator rods. * **Vehicle and Weapon System Components:** High-strength pins, shafts, and fasteners. * **High-Performance Motorsports:** * **Engine Connecting Rods:** For extreme, high-RPM applications. * **Suspension Components:** Pushrods, rockers, and torsion bars. * **Specialized Tooling:** * **Mandrels, Dies, and Tooling Inserts:** Where high wear resistance and strength are required. --- #### **4. International Standards & Specifications** Aermet 100 Rod conforms to the following key international and aerospace standards, ensuring material quality and traceability. * **Aerospace Material Specification (AMS):** * **AMS 6532:** This is the primary governing specification for Aermet 100, covering bars, forgings, and rings. * **Aerospace Standard (AS):** * **AS 7482:** Standard for Aermet 100 steel, consumable electrode melted. * **Unified Numbering System (UNS):** * **UNS K92580** * **U.S. Military Standard:** * **MIL-DTL-32375:** Detail specification for Aermet 100 steel. --- #### **5. Key Advantages & Processing Guidelines** * **Superior Strength-to-Toughness Ratio:** Offers significantly better fracture toughness than other ultra-high-strength steels at comparable strength levels. * **Excellent Fatigue Performance:** High resistance to crack initiation under cyclic loading. * **Machinable in Annealed Condition:** Supplied soft (typically ~ 285 HB) for efficient machining into complex shapes prior to final heat treatment. **Critical Processing Notes for Rod Product:** 1. **Machining:** All significant machining, drilling, and grinding **must** be performed in the annealed condition. 2. **Heat Treatment:** The final ultra-high strength is achieved through a precise, three-step heat treatment prescribed by AMS 6532: * **Austenitizing:** ~ 900°C (1650°F) * **Quenching:** In oil or air. * **Aging (Tempering):** ~ 480°C (900°F) to precipitate fine alloy carbides (secondary hardening). 3. **Post-Treatment Machining:** After final heat treatment, the material is extremely hard; only grinding or EDM (Electrical Discharge Machining) should be used for final dimensional adjustments. 4. **Welding:** Not generally recommended for component fabrication. Requires extreme caution and specialized post-weld heat treatment. **For optimal performance, component design and processing of Aermet 100 Rod must adhere strictly to the supplier's and AMS specifications.**

Packing of Standard Packing: 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 2561 gallon liquid totes Special package is available on request.