AISI E50100 Steel Seamless tube

AISI E50100 Steel Seamless tube Product Information -:- For detailed product information, please contact sales. -: AISI E50100 Steel Seamless tube Synonyms -:- For detailed product information, please contact sales. -:

AISI E50100 Steel Product Information -:- For detailed product information, please contact sales. -: **Product Datasheet: AISI E50100 High-Carbon Chromium Steel** **1. Product Overview** AISI E50100 is a **high-carbon, high-chromium through-hardening alloy steel** primarily used in the manufacture of **ball and roller bearings**. It belongs to the American Iron and Steel Institute (AISI) "E" series, designating steels produced to electric furnace quality with strict control over purity and homogeneity. The steel is engineered to achieve high hardness, exceptional wear resistance, and good fatigue strength after proper heat treatment, making it a standard material for demanding mechanical components. **2. Key International & Equivalent Standards** * **Primary Standard:** **ASTM A295** (Standard Specification for High-Carbon Anti-Friction Bearing Steel) – Grade 50100. * **U.S. Standards:** **AISI E50100**, **SAE J404, J412** (Grade 50100). * **European (EU) Equivalents:** **100Cr6** (1.3505) according to EN ISO 683-17. Nearly identical in composition. * **Japanese Equivalent:** **SUJ2** (JIS G4805). * **ISO Equivalent:** **ISO 683-17:100Cr6**. **3. Chemical Composition (Weight % - Standard Ranges)** Composition is per ASTM A295/A295M specifications, emphasizing high purity and strict control of residual elements. | Element | Minimum (%) | Maximum (%) | Typical Target (%) | Primary Function | | :--- | :--- | :--- | :--- | :--- | | **Carbon (C)** | 0.95 | 1.10 | 1.00 | Provides high hardness and wear resistance via carbide formation. | | **Manganese (Mn)** | 0.25 | 0.45 | 0.35 | Hardenability, combats sulfur embrittlement. | | **Phosphorus (P)** | — | 0.025 | 0.015 | Residual element (strictly controlled impurity). | | **Sulfur (S)** | — | 0.015 | 0.010 | Residual element (strictly controlled impurity). | | **Silicon (Si)** | 0.15 | 0.35 | 0.25 | Deoxidizer, provides solid solution strength. | | **Chromium (Cr)** | 0.40 | 0.65 | 0.50 | Enhances hardenability, forms hard carbides for wear and fatigue resistance. | | **Nickel (Ni)** | — | 0.25 (residual) | — | Residual element. | | **Copper (Cu)** | — | 0.35 (residual) | — | Residual element. | | **Molybdenum (Mo)** | — | 0.10 (residual) | — | Residual element. | **4. Physical & Mechanical Properties (Typical - After Full Hardening & Tempering)** *Note: Properties are dependent on section size and specific heat treatment (austenitizing temperature, quench medium, tempering temperature).* * **Hardness (Hardened & Tempered):** **60 – 66 HRC** (typical tempering range: 150°C – 250°C). * **Tensile Strength:** ~ 2000 – 2400 MPa (very high, but brittleness is a concern at full hardness). * **Yield Strength (0.2% Offset):** ~ 1500 – 1900 MPa. * **Elongation at Break:** Low (< 5% at full hardness), improves slightly with higher tempering temperatures. * **Reduction of Area:** Low. * **Fatigue Strength (Rotating Bending):** High, a key property for bearing applications. * **Physical Constants:** * **Density:** 7.83 g/cm³ * **Modulus of Elasticity:** ~ 210 GPa * **Thermal Conductivity:** ~ 46 W/m·K (at 100°C) * **Coefficient of Thermal Expansion:** ~ 11.5 x 10⁻⁶/K (20-100°C) **5. Heat Treatment Characteristics** * **Forging:** Heat uniformly to 1050°C – 1100°C (1920°F – 2010°F). Do not forge below 850°C (1560°F). Must be annealed after forging. * **Annealing (Spheroidize Annealing):** Required for machinability. Heat to 780°C – 810°C (1435°F – 1490°F), slow cool. Resulting hardness: ~ 179 – 229 HB. * **Hardening:** Austenitize at **820°C – 860°C** (1510°F – 1580°F), followed by **oil quenching**. Can also be martempered (hot oil quench) to reduce distortion. * **Tempering:** **Mandatory immediately after quenching.** Typical range is **150°C – 250°C** to relieve quenching stresses, improve toughness marginally, and stabilize microstructure without significant loss of hardness. * **Dimensional Stability:** For critical applications (e.g., gauges), sub-zero treatment and multiple tempering cycles may be used to transform retained austenite. **6. Primary Applications** AISI E50100 is the workhorse steel for a vast range of high-wear, high-contact stress components: * **Bearings:** **Ball bearings**, **roller bearings**, bearing races, and slewing rings. * **Automotive:** Constant velocity joint components, needle roller bearings, fuel pump shafts, high-wear pins. * **Industrial Machinery:** Gears, shafts, rollers, liners, balls for ball screws, machine tool spindles, and wear plates. * **Other:** High-quality blades, cutting tools (knives, slitters), and precision measuring instruments. **7. Key Advantages & Selection Rationale** * **High Hardness & Wear Resistance:** The ~1% carbon content ensures a high volume of hard carbides. * **Excellent Fatigue Life:** Clean steelmaking (E-grade) and fine carbide distribution provide superior rolling contact fatigue resistance. * **Good Hardenability:** The chromium content allows through-hardening of moderate sections in oil. * **Wide Industry Acceptance:** A globally recognized standard material with well-established processing guidelines and abundant supply chain support. --- **Disclaimer:** This data sheet provides typical information based on standard specifications. For bearing and other critical applications, material must conform strictly to ASTM A295 or equivalent standards, which include supplementary requirements for magnetic particle inspection, macroetch, microstructure, and non-metallic inclusion ratings (e.g., ASTM E45). Final heat treatment and performance must be validated for the specific application. -:- For detailed product information, please contact sales. -: AISI E50100 Steel Specification Dimensions Size： Diameter 20-1000 mm Length <4092 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 E50100 Steel Properties -:- For detailed product information, please contact sales. -:

Applications of AISI E50100 Steel Seamless tube -:- For detailed product information, please contact sales. -: Chemical Identifiers AISI E50100 Steel Seamless tube -:- For detailed product information, please contact sales. -:

Packing of AISI E50100 Steel Seamless tube -:- 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 Seamless tube 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 563 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