AISI Type W5 Tool Steel Flange

1,We Manufacturing processes are primarily classified into four types: 1:Forging, 2:Casting, 3:Cutting, 4:Rolling. 2,We can manufacture in accordance with these standards. Standards: GB Series (Chinese Standards), JB Series (Machinery Standards), HG Series (Chemical Industry Standards), ASME B16.5 (American Standards), BS4504 (British Standards), DIN (German Standards), and JIS (Japanese Standards). Internationally, there are two primary systems of pipe flange standards: the European system, represented by the German DIN standards (including those of the former Soviet Union), and the American system, represented by the US ANSI pipe flange standards. Other common standards include: the Chinese Ministry of Machinery Industry standards (JB series), the Ministry of Chemical Industry standards (HG series), the Chinese National Standard *GB/T 9112–9124-2010 Steel Pipe Flanges*, as well as US standards (ASME B16.5), British standards (BS4504), German standards (DIN), Japanese standards (JIS), and marine standards (CBM), among others. The nominal pressure ratings for the PN series are designated by "PN" and comprise the following nine levels: PN2.5, PN6, PN10, PN16, PN25, PN40, PN63, PN100, and PN160. The nominal pressure ratings for the Class series are designated by "Class" and comprise the following six levels: Class150, Class300, Class600, Class900, Class1500, and Class2500. Flange Classification 1. **According to Chemical Industry Standards:** Flanges are classified as follows: Plate Flat Welding Flange (PL), Necked Flat Welding Flange (SO), Necked Butt Welding Flange (WN), Integral Flange (IF), Socket Welding Flange (SW), Threaded Flange (Th), Butt Welding Ring Loose Flange (PJ/SE), Blind Flange (BL), Flat Welding Ring Loose Flange (PJ/PJ), and Lined Blind Flange (BL(s)). 2. **According to Petrochemical (SH) Industry Standards:** Flanges are classified as follows: Threaded Flange (PL), Butt Welding Flange (WN), Flat Welding Flange (SO), Socket Welding Flange (SW), Loose Flange (LJ), and Blind Flange (no specific designation). 3. **According to Machinery (JB) Industry Standards:** Flanges are classified as follows: Integral Flange, Butt Welding Flange, Plate Flat Welding Flange, Butt Welding Ring Plate Loose Flange, Flat Welding Ring Plate Loose Flange, Lap Joint Ring Plate Loose Flange, and Blind Flange. 4. **According to Connection Method/Type:** Flanges are classified as follows: Plate Flat Welding Flange, Necked Flat Welding Flange, Necked Butt Welding Flange, Socket Welding Flange, Threaded Flange, Blind Flange, Necked Butt Welding Ring Loose Flange, Flat Welding Ring Loose Flange, Ring-Type Joint (RTJ) Flange and Blind Flange, Large-Diameter Plate Flange, Large-Diameter High-Neck Flange, Figure-8 Blind Plate, Butt Welding Ring Loose Flange, etc. 5. **According to the Component Being Connected:** Flanges can be classified into Vessel Flanges and Pipe Flanges. 6. **According to Structural Type:** Flanges include Integral Flanges, Threaded Flanges, Flat Welding Flanges, Butt Welding Flanges, Lap Joint (Loose/Swivel) Flanges, and Blind Flanges. A flange—also referred to as a flange plate or rim—is a component used to connect shafts to one another, or, more commonly, to join the ends of pipes. Flanges are also utilized at the inlet and outlet ports of equipment to facilitate connections between two devices—for instance, the flange on a speed reducer. A "flange connection" or "flanged joint" refers to a detachable joint assembly comprising three interconnected elements—a flange, a gasket, and bolts—that together form a sealed structural unit. In the context of piping systems, a "pipe flange" specifically denotes a flange used for plumbing within the installation; when applied to equipment, it refers to the inlet or outlet flange of that specific device. Flanges feature a series of holes through which bolts are inserted to securely fasten the two flanges together, while a gasket placed between the flanges ensures a leak-proof seal. Flanges are broadly categorized into three types: threaded (screw-in) flanges, welded flanges, and clamp-type flanges. Flanges are invariably used in pairs; threaded flanges are suitable for low-pressure piping applications, whereas welded flanges are required for systems operating at pressures exceeding 4 kilograms per square centimeter. A sealing gasket is inserted between the two flange plates, which are then firmly secured using bolts. The thickness of a flange—as well as the specifications of the bolts used to fasten it—vary depending on the specific pressure rating required for the application. When connecting equipment such as water pumps or valves to piping systems, the corresponding connection points on these devices are often manufactured in the shape of a matching flange; this method of attachment is also referred to as a "flange connection." Generally, any connecting component that utilizes bolts to join and seal the perimeters of two flat surfaces—such as the joints in ventilation ducts—is termed a "flange"; such components may collectively be classified as "flange-type parts." However, since such a connection often constitutes merely a *portion* of a larger device—for instance, the interface between a flange and a water pump—it would be inappropriate to classify the entire water pump itself as a "flange-type part." Conversely, smaller components—such as valves—that feature such flanged interfaces may indeed be appropriately categorized as "flange-type parts." -:- For detailed product information, please contact sales. -: AISI Type W5 Tool Steel Flange Product Information -:- For detailed product information, please contact sales. -: AISI Type W5 Tool Steel Flange Synonyms -:- For detailed product information, please contact sales. -:

AISI Type W5 Tool Steel Product Information -:- For detailed product information, please contact sales. -: # Technical Datasheet: AISI Type W5 Tool Steel --- ## **1. Product Overview** **AISI W5** is a **high-carbon, water-hardening tool steel** representing a specific composition within the water-hardening (W-series) tool steel family. It is characterized by a **carbon content of approximately 1.05-1.15%**, placing it at the higher end of the W-series carbon range, which gives it a **slightly higher maximum attainable hardness** compared to lower-carbon W-grades (like W1 or W2), while maintaining similar characteristics of shallow hardenability, good machinability, and low alloy cost. As a **plain carbon tool steel** with minimal alloying additions, W5 is hardened by rapid water or brine quenching, which produces a hard martensitic case while leaving a softer, tougher pearlitic core—a useful characteristic for certain tooling applications. It is a traditional, economical steel for general-purpose tooling where extreme wear resistance or deep hardening is not required, but where high surface hardness and ease of resharpening are valued. --- ## **2. Key International Standards & Designations** | Country/System | Standard Designation | Equivalent / Comparable Grade | | :--- | :--- | :--- | | **USA (AISI/SAE)** | **AISI Type W5** | (Part of AISI W1-W7 series, defined by carbon range) | | **USA (ASTM)** | **ASTM A686** | Standard Specification for Carbon Tool Steel | | **ISO** | **ISO 4957:2018** | **1.1545** (C105W1) - Similar, but exact carbon match may vary | | **Europe (EN)** | **EN ISO 4957:2018** | **1.1545** / C105W1 | | **Germany (DIN/W-Nr.)** | **1.1545** | C105W1 / C80W2 | | **Japan (JIS)** | **JIS G4401:2009** | **SK105** / **SK120** (depending on carbon) | | **United Kingdom (BS)** | **BW1C** (for similar carbon range) | - | | **China (GB)** | **GB/T 1298-2008** | **T10A** (~1.0%C) or **T12A** (~1.2%C) | **Note:** The AISI W5 designation is less commonly referenced in modern international standards than the generic W1 classification. It is often treated as a subset of W1 with a specified higher carbon content (typically ~1.10% C). The closest modern equivalents are high-carbon variants of EN 1.1545 or JIS SK105/SK120. --- ## **3. Chemical Composition (Typical %)** The defining feature of W5 is its carbon content. Other elements are kept low to maintain the "water-hardening" characteristic of shallow hardenability. | Element | Weight % (Typical Range) | Metallurgical Function | | :--- | :--- | :--- | | **Carbon (C)** | **1.05 - 1.15** | **Primary element.** Determines maximum hardness (~66-67 HRC achievable), wear resistance, and contributes to strength. Higher carbon vs. W1/W2 increases hardness potential but slightly reduces toughness. | | **Manganese (Mn)** | 0.20 - 0.40 | Enhances hardenability slightly and acts as a deoxidizer. Kept low to limit depth of hardening. | | **Silicon (Si)** | 0.15 - 0.35 | Deoxidizer, provides mild solid solution strengthening. | | **Phosphorus (P)** | ≤ 0.025 | Impurity; kept very low to prevent cold shortness (embrittlement). | | **Sulfur (S)** | ≤ 0.025 | Impurity; may be slightly elevated to improve machinability in the annealed state (resulting in "free-machining" variants). | | **Chromium (Cr)** | ≤ 0.15 (residual) | Unintentional residual; minimal effect. | | **Vanadium (V)** | ≤ 0.10 (residual) | Unintentional residual; may be present in trace amounts. | **Key Distinction from W1/W2:** W5 has a **higher specified carbon content** than the standard W1 range (0.70-1.00% C) and typically lacks the intentional vanadium addition (0.15-0.35% V) that defines W2. This makes W5 a **simple, high-carbon water-hardening steel**. --- ## **4. Physical & Mechanical Properties** ### **4.1 Heat Treatment Response** * **Annealing:** Heat to 740-760°C (1365-1400°F), slow furnace cool. Annealed hardness: **183-217 HB**. * **Austenitizing (Hardening):** **770-815°C (1420-1500°F)**. Lower temperatures (~790°C) promote finer grain size and better toughness; higher temperatures (~815°C) maximize hardness. * **Quenching:** **Water or brine (5-10% NaCl).** Vigorous agitation is **critical** to break the vapor blanket and prevent soft spots. Brine is preferred for more uniform hardening. Quench to room temperature. * **Tempering:** **Must be performed immediately** after quenching to relieve stress. Typical range: **150-400°C (300-750°F)**. * **150-200°C:** For maximum hardness and wear resistance (62-65 HRC), lower toughness. * **250-350°C:** Best general-purpose balance (58-62 HRC), good toughness. * **400°C+:** For springs or high-impact tools (50-55 HRC), maximum toughness. ### **4.2 Typical Mechanical Properties (Hardened & Tempered)** | Property | Value / Condition | Notes | | :--- | :--- | :--- | | **As-Quenched Hardness** | ~65-67 HRC | Maximum surface hardness, very brittle. | | **Hardness (Tempered @ 200°C)** | 63-65 HRC | High wear resistance applications. | | **Hardness (Tempered @ 315°C)** | 58-60 HRC | **Most common general-purpose condition.** | | **Tensile Strength** | 1900-2200 MPa (@ ~60 HRC) | High strength but limited ductility. | | **Yield Strength** | 1700-2000 MPa | | | **Compressive Strength** | 2200-2500 MPa | Excellent for compressive loads. | | **Impact Toughness** | **Low to Moderate** (10-25 J, Charpy) | Inherently brittle; toughness depends heavily on tempering temperature and design (tough core helps). | | **Wear Resistance** | **Good** | Good for its cost, but inferior to alloy steels with hard carbides (e.g., D2, M2). | | **Hardenability** | **Very Shallow** | Effective case depth in water: **3-6 mm (1/8" - 1/4")**. Core remains soft and pearlitic. | | **Dimensional Stability** | **Poor** | Water quenching causes significant distortion, warping, and high risk of cracking. Not for precision tools without post-HT grinding. | ### **4.3 Physical Properties (Approximate)** * Density: 7.83 g/cm³ (0.283 lb/in³) * Thermal Conductivity: ~46 W/m·K (at 20°C) * Coefficient of Thermal Expansion: 11.5 x 10⁻⁶/K (20-100°C) * Modulus of Elasticity (Young's Modulus): 200-205 GPa (29-30 x 10⁶ psi) * Poisson's Ratio: 0.29 --- ## **5. Typical Product Applications** W5 is suitable for **low-cost, general-purpose tools** that benefit from a hard, wear-resistant surface and a tough, shock-absorbing core. Its use has declined in favor of more forgiving oil-hardening steels (O-series) but remains relevant for specific applications. * **Hand Tools:** Cold chisels, center punches, drifts, nail sets, some types of hammers. * **Woodworking Tools:** Plane irons, wood chisels, drawknives, carving tools. * **Metal Cutting Tools (Low-Speed):** Lathe tools, form tools, and drills for soft metals (aluminum, brass). * **Simple Cutting Dies:** For paper, leather, rubber, or soft plastics. * **Agricultural Tools:** Cultivator blades, knife sections. * **Springs (when tempered at high temperature):** Simple flat springs or coil springs for low-stress applications. * **Miscellaneous Tools:** Screwdriver tips, pry bars, scrapers. --- ## **6. Processing & Manufacturing Guidelines** * **Machinability (Annealed):** **Excellent.** One of its primary advantages. Rated at **80-90%** of a standard free-machining steel (1212). Produces good surface finishes. * **Grindability (Hardened):** **Excellent.** Grinds easily without excessive heat generation or risk of burn, making it ideal for tools that are ground to final shape after heat treatment. * **Forging:** Forge at 1000-1100°C (1830-2010°F). Do not forge below ~850°C (1560°F). Cool slowly after forging (in lime, mica, or furnace) to prevent cracking. * **Welding:** **Not recommended.** High risk of cracking in the heat-affected zone (HAZ). If absolutely necessary, preheat to 300-400°C and use a low-hydrogen process, followed by full re-annealing and re-hardening. * **Key Heat Treatment Challenge:** **Quench Cracking.** The high carbon content and severe water quench create enormous internal stresses. **Design is critical:** avoid sharp corners, use generous fillet radii (min. 3mm), and maintain uniform cross-sections. --- ## **7. Comparative Performance & Selection Notes** * **vs. AISI W1 (lower carbon):** W5 can achieve slightly higher maximum hardness and better wear resistance, but at the cost of marginally lower toughness and slightly higher cracking risk. * **vs. AISI W2 (with vanadium):** W2 has vanadium for grain refinement and better toughness at similar hardness. W5 is simpler and cheaper but less resistant to overheating during austenitizing. * **vs. AISI O1 (Oil-Hardening):** O1 is the **strongly preferred alternative** for most modern tooling. O1 offers better hardenability (for thicker sections), much lower distortion, minimal cracking risk, and better dimensional stability, with only a small cost premium. * **vs. AISI A2 (Air-Hardening):** A2 offers vastly superior dimensional stability, deeper hardening, and better wear resistance, but is more expensive and less machinable. **When to Choose W5:** * Cost is the primary driver. * Tool design is simple and accommodates water quenching (no thin sections, sharp corners). * Tools are regularly resharpened (easy grinding is a benefit). * The application is low-volume or a prototype. --- ## **8. Important Design & Handling Notes** 1. **Section Size Limit:** Do not use for sections thicker than **12-15 mm (1/2")** if through-hardening is required. The hard case depth is limited. 2. **Corrosion Resistance:** **Very poor.** Will rust quickly. Always apply a protective coating (oil, paint, plating, bluing) after final grinding. 3. **Temperature Resistance:** **Poor.** Hardness begins to drop significantly above **150-200°C (300-390°F)**. Not suitable for high-speed cutting or hot work. 4. **Stress Relieving:** For complex shapes, a stress relief at 600-650°C after rough machining and before final hardening is recommended. --- ## **9. Conclusion** **AISI Type W5 tool steel is a traditional, high-carbon, water-hardening steel that represents a specific point in the evolution of tool materials.** Its high carbon content (~1.10% C) gives it a slight edge in potential hardness over standard W1, while its simple composition keeps it economical. However, it embodies all the classic challenges of water-hardening steels: **severe quenching stresses, high distortion, risk of cracking, and shallow hardenability.** Its modern use is niche, primarily in applications where **low cost and excellent grindability for resharpening are paramount**, and where tool design can be adapted to mitigate quenching risks. For the vast majority of tooling applications—especially those requiring precision, complex geometry, or reliability—**oil-hardening (O1) or air-hardening (A2, D2) steels are superior and more forgiving choices.** W5 remains a valid material for understanding fundamental tool steel heat treatment and for specific, cost-sensitive traditional toolmaking where its limitations are well-understood and controlled. --- -:- For detailed product information, please contact sales. -: AISI Type W5 Tool Steel Specification Dimensions Size： Diameter 20-1000 mm Length <5220 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 W5 Tool Steel Properties -:- For detailed product information, please contact sales. -:

Applications of AISI Type W5 Tool Steel Flange -:- For detailed product information, please contact sales. -: Chemical Identifiers AISI Type W5 Tool Steel Flange -:- For detailed product information, please contact sales. -:

Packing of AISI Type W5 Tool Steel Flange -:- 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 Flange 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 1691 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