Misumi SKS93 JIS 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. -: Misumi SKS93 JIS Tool Steel Flange Product Information -:- For detailed product information, please contact sales. -: Misumi SKS93 JIS Tool Steel Flange Synonyms -:- For detailed product information, please contact sales. -:

Misumi SKS93 JIS Tool Steel Product Information -:- For detailed product information, please contact sales. -: # **Product Introduction: MISUMI SKS93 JIS Tool Steel** ## **1. Overview** **MISUMI SKS93** is a standard **carbon tool steel** conforming to the **Japanese Industrial Standards (JIS)** classification, designed for general-purpose tooling applications requiring good hardness and wear resistance at an economical cost. As a member of the **SKS (Special Use Carbon Steel for Tools)** series, SKS93 represents a versatile, water-hardening grade suitable for a wide range of low-to-medium duty cutting, punching, and forming tools. It is characterized by its **simplicity of heat treatment (water quenching), good machinability in the annealed state, and ease of sharpening**. While lacking the alloy content and performance of higher-grade tool steels, SKS93 offers a cost-effective solution for tool maintenance, prototype tooling, and production of tools where extreme wear resistance or toughness is not required. ## **2. International Standards & Specifications** This material is a standardized Japanese tool steel grade, with clear equivalents in other systems. * **Primary Standard:** * **JIS G4401:** Carbon tool steels. **SKS93** is the specific grade designation. * **Key International Equivalents:** * **AISI/SAE:** **W1-1.0C** (Water-hardening tool steel, ~1.0% C) is the closest American equivalent. * **DIN/EN:** **C100U / 1.1645** (German designation for 1.0% C tool steel). * **ISO:** **TC100** (ISO classification for similar composition). * **GB/T (China):** **T10** or **T10A** (High-quality carbon tool steel). * **Common Names:** Often referred to as **Water-Hardening Tool Steel, Carbon Tool Steel**, or simply by its JIS code **SKS93**. ## **3. Chemical Composition (Weight %, per JIS G4401)** The composition is simple, based primarily on iron and carbon with minimal alloying. | Element | Composition Range (%) | Role & Benefit | |---------|----------------------|----------------| | **Carbon (C)** | 0.90 – 1.05 | **Primary alloying element.** Provides hardness and wear resistance through martensite formation upon quenching. | | **Manganese (Mn)** | 0.15 – 0.40 | Aids slightly in hardenability and works as a deoxidizer. | | **Silicon (Si)** | 0.10 – 0.35 | Acts as a deoxidizer during steelmaking. | | **Phosphorus (P)** | ≤ 0.030 | Impurity, controlled for basic toughness. | | **Sulfur (S)** | ≤ 0.030 | Impurity, controlled for machinability. | | **Note:** Chromium, tungsten, vanadium, and molybdenum **are not intentional alloying additions** in standard SKS93. Its properties derive almost entirely from its carbon content and heat treatment. ## **4. Typical Physical & Mechanical Properties (Heat Treated)** * **Heat Treatment Characteristics:** * **Quenching Medium: Water.** This is its defining feature. Water quenching is severe and carries a **high risk of distortion and cracking**, especially for complex or uneven sections. * **Austenitizing Temperature:** ~760-800°C (1400-1470°F). * **Tempering:** Required immediately after quenching to relieve stress and adjust hardness/final properties. Typical range: 150-200°C (300-390°F) for high hardness. * **Mechanical Properties (Hardened & Tempered):** * **Achievable Hardness:** **60 – 64 HRC** (with proper heat treatment). * **Tensile Strength:** High, but material is brittle at full hardness. * **Impact Toughness:** **Low.** Very limited resistance to shock or impact loading at high hardness. * **Wear Resistance:** **Fair.** Adequate for low-stress applications against soft materials, but inferior to alloy tool steels (SKS, SKD) or high-speed steels due to lack of hard alloy carbides. * **Dimensional Stability:** **Poor.** High distortion and size change during water quenching. Not suitable for precision tools requiring tight tolerances post-heat treatment. * **Key Processing Features:** * **Machinability (Annealed):** **Excellent.** Very easy to machine, turn, and drill. * **Grindability:** **Excellent.** Easy to sharpen and regrind. * **Weldability:** **Poor.** High carbon content makes it prone to cracking. Not recommended for welding. ## **5. Product Application** SKS93 is suitable for **simple, low-stress tools** where low cost and ease of manufacture/maintenance are prioritized over performance and durability. * **Hand Tools & Maintenance Tools:** * **Screwdrivers, chisels, pry bars, and scrapers.** * **Punches, drifts, and alignment pins** for general workshop use. * **Simple Cutting & Forming Tools:** * **Knives and blades** for cutting paper, cardboard, leather, or soft plastics. * **Simple forming dies and bending tools** for soft metals (e.g., aluminum, copper). * **Woodworking Tools:** * **Chisels, plane blades, and carving tools** (traditional application). * **Gauges & Measuring Tools (Non-Precision):** * **Thread gauges, go/no-go gauges** for non-critical inspection. * **Prototype & Short-Run Tooling:** Where quick fabrication and low initial cost are key. ## **6. Key Features & Advantages** * **Low Cost:** The most significant advantage. One of the most economical tool steels available. * **Excellent Machinability & Grindability:** Easy to fabricate and sharpen with standard workshop equipment. * **Simple Heat Treatment:** Can be hardened with basic equipment (forge, oven, water tank), though skill is required to avoid cracks. * **High Surface Hardness Potential:** Can achieve very high surface hardness for its class. * **Good for Simple Shapes:** Works well for tools with uniform cross-sections and no sharp corners. ## **7. Processing Guidelines & Limitations** * **Heat Treatment Caution:** **Water quenching is risky.** Use a brine solution for more uniform quenching if possible. Preheating is recommended to reduce thermal shock. **Temper immediately** after quenching. * **Design for Quenching:** Avoid drastic changes in cross-section, sharp internal corners, and thin edges. These are stress concentrators and will likely crack. * **Not for Precision Work:** Due to high distortion, it is unsuitable for precision jigs, fixtures, or tooling requiring dimensional stability. * **Not for Impact or High Wear:** Avoid applications involving shock, heavy impact, or abrasive materials. * **Surface Hardening Only:** Has shallow hardenability; only thin sections will harden fully. Core of thick parts remains softer. **Summary:** MISUMI SKS93 JIS Tool Steel is a **basic, economical carbon tool steel** that serves as an entry-level material for toolmaking and general workshop use. Its value proposition is simplicity and low cost, not high performance. It is best suited for simple hand tools, low-stress applications, and situations where tools are frequently resharpened or replaced. For any application requiring dimensional precision, impact resistance, long wear life, or complex geometry, alloy tool steels (such as SKS3, SKS31) or oil/air-hardening grades (A2, D2) are vastly superior choices. SKS93 remains relevant as a accessible material for hobbyists, maintenance shops, and for manufacturing disposable or low-duty tools where its limitations are understood and accepted. -:- For detailed product information, please contact sales. -: Misumi SKS93 JIS Tool Steel Specification Dimensions Size： Diameter 20-1000 mm Length <7070 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. -: Misumi SKS93 JIS Tool Steel Properties -:- For detailed product information, please contact sales. -:

Applications of Misumi SKS93 JIS Tool Steel Flange -:- For detailed product information, please contact sales. -: Chemical Identifiers Misumi SKS93 JIS Tool Steel Flange -:- For detailed product information, please contact sales. -:

Packing of Misumi SKS93 JIS 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 3541 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