SAE 5015 Alloy Steel Foil/Strip

SAE 5015 Alloy Steel Foil, Composition Spec Product Information -:- For detailed product information, please contact sales. -: SAE 5015 Alloy Steel Foil, Composition Spec Synonyms -:- For detailed product information, please contact sales. -:

SAE 5015 Alloy Steel, Composition Spec Product Information -:- For detailed product information, please contact sales. -: **Product Datasheet: SAE 5015 Alloy Steel (Composition Spec)** **1. Product Overview** SAE 5015 is a low-carbon, chromium-molybdenum (Cr-Mo) alloy steel specifically designed for **case hardening** (carburizing or carbonitriding). It offers a balanced combination of excellent core toughness, good hardenability for moderate section sizes, and the ability to develop a hard, wear-resistant surface. Its relatively lean alloying composition makes it a **cost-effective** choice for a wide range of medium-duty, high-performance components requiring surface hardness and fatigue resistance. **2. Key International & Equivalent Standards** * **Primary Standard:** **SAE J404, J412, J770** (SAE-AISI 5015) * **U.S. Standards:** **ASTM A322** (Standard Specification for Steel Bars, Alloy, Standard Grades) * **European (EU) Equivalents:** Approximately **18CrMo4** (1.7243) – Note: European grades have slightly different composition ranges. * **Japanese Equivalent:** **SCr415** (JIS G4052) * **ISO Equivalent:** Similar to **ISO 683-11 Type 18CrMo4**. **3. Chemical Composition (Weight % - Standard Ranges)** Composition is per SAE J404 specifications. Hardenability (H-band) versions are available for tighter control. | Element | Minimum (%) | Maximum (%) | Typical Target (%) | Primary Function | | :--- | :--- | :--- | :--- | :--- | | **Carbon (C)** | 0.12 | 0.18 | 0.15 | Core strength; provides carbon for case hardening. | | **Manganese (Mn)** | 0.70 | 0.90 | 0.80 | Hardenability, combats sulfur embrittlement. | | **Phosphorus (P)** | — | 0.035 | 0.020 | Residual element (impurity). | | **Sulfur (S)** | — | 0.040 | 0.025 | Improves machinability (forms MnS inclusions). | | **Silicon (Si)** | 0.15 | 0.35 | 0.25 | Deoxidizer, provides solid solution strength. | | **Chromium (Cr)** | 0.80 | 1.10 | 0.95 | Enhances hardenability, promotes carbides in case for wear resistance. | | **Molybdenum (Mo)** | 0.15 | 0.25 | 0.20 | Significantly increases hardenability and core strength; improves tempering resistance. | **4. Physical & Mechanical Properties (Typical - After Proper Heat Treatment)** *Note: Properties are highly dependent on section size and specific heat treatment cycle.* * **Core Properties (After Case Hardening & Tempering):** * **Tensile Strength:** 550 – 850 MPa * **Yield Strength (0.2% Offset):** 400 – 650 MPa * **Elongation (in 50 mm):** ≥ 12% * **Reduction of Area:** ≥ 50% * **Hardness (Core):** 25 – 40 HRC * **Case Properties (After Carburizing & Hardening):** * **Surface Hardness:** 58 – 63 HRC * **Effective Case Depth:** Adjustable based on carburizing cycle (typically 0.5 – 2.0 mm). * **Physical Constants:** * **Density:** ~7.85 g/cm³ * **Modulus of Elasticity:** ~205 GPa * **Machinability:** Good (compared to other alloy steels), rated ~65% of a 1212 free-machining steel standard. **5. Heat Treatment Characteristics** * **Forging:** Heat uniformly to 1150°C – 1200°C (2100°F – 2200°F). Do not forge below 850°C (1550°F). * **Annealing:** Heat to 830°C – 860°C (1525°F – 1580°F), slow furnace cool. Results in ~156 HB for optimal machining. * **Case Hardening:** Excellent candidate for **gas or atmosphere carburizing** (typically 900°C – 950°C) or **carbonitriding**. * **Hardening:** After carburizing, quench in oil. The Cr-Mo content provides good through-hardenability for sections up to ~25-30mm. * **Tempering:** Required after quenching, typically in the range of **150°C – 200°C** to relieve stresses while retaining high case hardness. **6. Primary Applications** SAE 5015 is widely used in automotive, machinery, and general engineering sectors for components that require a hard, wear-resistant surface and a tough, shock-absorbing core: * **Automotive:** Gears (transmission, differential), shafts, pins, camshafts, clutch components, sprockets. * **Industrial Machinery:** Gears, rollers, cam followers, guide rods, chain links. * **Agricultural Equipment:** Drive train components, pivot pins, bushings. * **General Engineering:** Various pins, bolts, and lightly loaded bearings after case hardening. **7. Key Advantages & Selection Rationale** * **Cost-Effective Performance:** Provides a superior performance-to-cost ratio compared to higher-alloy steels like 4100 or 4300 series for many applications. * **Good Hardenability:** The Mo addition ensures sufficient hardenability for many medium-sized parts without the need for more expensive Ni. * **Excellent Core Toughness:** The low carbon content in the core ensures good ductility and impact resistance. * **Reliable Response to Case Hardening:** Produces a consistent, high-quality hardened case with good resistance to softening during tempering. --- **Disclaimer:** This data sheet provides typical information based on standard specifications. For specific applications, the exact chemical composition, heat treatment parameters, and mechanical property requirements must be agreed upon between the supplier and customer, guided by the relevant ASTM, SAE, or other applicable material standards. -:- For detailed product information, please contact sales. -: SAE 5015 Alloy Steel, Composition Spec Specification Dimensions Size： Diameter 20-1000 mm Length <4091 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. -: SAE 5015 Alloy Steel, Composition Spec Properties -:- For detailed product information, please contact sales. -:

Applications of SAE 5015 Alloy Steel Foil, Composition Spec -:- For detailed product information, please contact sales. -: Chemical Identifiers SAE 5015 Alloy Steel Foil, Composition Spec -:- For detailed product information, please contact sales. -:

Packing of SAE 5015 Alloy Steel Foil/Strip, Composition Spec -:- 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 Foil/Strip 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 562 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