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."
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AISI Type M43 Molybdenum High Speed Tool Steel Flange (UNS T11343) Product Information
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AISI Type M43 Molybdenum High Speed Tool Steel Flange (UNS T11343) Synonyms
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AISI Type M43 Molybdenum High Speed Tool Steel (UNS T11343) Product Information
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### **Product Introduction: AISI Type M43 Molybdenum High-Speed Tool Steel (UNS T11343)**
**AISI M43 (UNS T11343)** is a high-carbon, high-cobalt, and high-vanadium molybdenum-based high-speed steel (HSS). It is classified as a **"Super High-Speed Steel"** due to its exceptional combination of very high hardness (up to 70 HRC), outstanding wear resistance, and superior red-hardness (the ability to retain hardness at elevated temperatures). This makes it an elite choice for machining demanding materials and for premium cutting tools requiring extreme performance and long service life.
The key characteristics of M43 are derived from its significant cobalt content, which enhances hot hardness and tempering resistance, and its high vanadium content, which provides excellent abrasion resistance through the formation of hard vanadium carbides.
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### **1. Chemical Composition (Nominal %)**
The typical chemical composition of AISI M43 is as follows:
| Element | Content (%) | Primary Function |
| :--- | :--- | :--- |
| **Carbon (C)** | 1.20 - 1.30 | Forms hard carbides for wear resistance and contributes to high hardness. |
| **Tungsten (W)** | 1.50 - 2.00 | Contributes to hot hardness and wear resistance. |
| **Molybdenum (Mo)** | 7.50 - 8.50 | Primary element for hot hardness and hardenability; forms carbides. |
| **Chromium (Cr)** | 3.50 - 4.25 | Enhances hardenability, wear resistance, and provides mild corrosion resistance. |
| **Vanadium (V)** | 2.75 - 3.25 | **Key element.** Forms very hard V-carbides, providing exceptional abrasion resistance. |
| **Cobalt (Co)** | 7.75 - 8.75 | **Key element.** Does not form carbides but dissolves in the matrix, dramatically increasing red-hardness and tempering resistance. |
| **Silicon (Si)** | 0.15 - 0.40 | Deoxidizer during steelmaking. |
| **Manganese (Mn)** | 0.15 - 0.40 | Aids in hardenability and acts as a deoxidizer. |
| **Sulfur (S)** | ≤ 0.03 | Typically kept low (unless specified for improved machinability in free-machining variants). |
| **Phosphorus (P)** | ≤ 0.03 | Impurity kept low for toughness. |
| **Iron (Fe)** | Balance | Base metal. |
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### **2. Physical & Mechanical Properties**
| Property | Typical Value / Condition |
| :--- | :--- |
| **Density** | ~8.10 g/cm³ (0.292 lb/in³) |
| **Melting Point** | ~1427°C (2600°F) |
| **Thermal Conductivity** | Relatively low (approximately 25-30 W/m·K at 20°C), a common trait in high-alloy steels. |
| **Coefficient of Thermal Expansion** | ~11.5 x 10⁻⁶/K (20-600°C) |
| **Hardness (Annealed)** | 235-269 HB |
| **Hardness (Hardened & Tempered)** | **66-70 HRC** (Commonly achieved at 67-68 HRC for optimal performance balance). |
| **Tempering Temperature** | 540-600°C (1000-1110°F), typically triple-tempered. |
| **Hot Hardness** | **Excellent.** Retains high hardness well above 600°C (1112°F), superior to standard HSS grades like M2. |
| **Abrasion Resistance** | **Exceptional**, due to high vanadium carbide volume. |
| **Toughness** | Moderate to Low. The high hardness and carbide content come at the expense of toughness compared to lower-alloy HSS grades. Careful application design is crucial. |
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### **3. International Standards & Cross-References**
AISI M43 is recognized under various international standards. Key equivalents include:
| Standard | Designation |
| :--- | :--- |
| **UNS** | T11343 |
| **AISI (USA)** | M43 |
| **ASTM (USA)** | A600: M43 |
| **ISO (International)** | **HS 2-9-1-8** (ISO 4957: Tool steels) |
| **DIN (Germany)** | **1.3202** (Old designation: S 2-9-2) |
| **JIS (Japan)** | **SKH59** (Note: Similar but not always an exact 1:1 match) |
| **GB (China)** | **W2Mo9Cr4VCo8** (Approximate equivalent) |
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### **4. Product Applications**
AISI M43 is used for high-performance cutting and machining tools where extreme wear resistance and hot hardness are paramount, often where other HSS grades fail prematurely.
**Primary Applications Include:**
* **Cutting Tools:**
* **Premium Drills, Taps, and End Mills:** For machining tough and abrasive materials like high-temperature alloys (Inconel, Waspaloy), titanium alloys, high-strength steels, chilled cast iron, and hardened steels.
* **Broaches and Gear Hobs:** Where precise form and exceptional wear life are required.
* **Form Tools and Thread Rolling Dies:** Benefiting from high surface hardness.
* **Single-Point Lathe Tools:** For heavy-duty, high-speed turning operations.
* **Other Tooling:**
* **Cold Work Punches and Dies:** For applications requiring very high wear resistance, though toughness limitations must be considered.
* **Blades for cutting abrasive non-metallic materials.**
**Key Advantage:** **Extended Tool Life** under severe cutting conditions, justifying its higher cost compared to standard HSS grades.
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### **5. Processing & Heat Treatment Notes**
* **Forging:** Heat slowly to **1050-1150°C (1920-2100°F)**. Do not forge below **925°C (1700°F)**. Cool slowly after forging, preferably in a furnace or insulating medium.
* **Annealing:** Heat to **840-870°C (1545-1600°F)**, hold, then furnace cool slowly to **540°C (1000°F)**. Typical annealed hardness is 235-269 HB.
* **Hardening (Austenitizing):** Preheating is **critical** (at 815°C / 1500°F) to prevent thermal shock. Final austenitizing temperature is typically **1175-1210°C (2150-2210°F)**. Quench in salt bath, oil, or controlled atmosphere. Temperature control is vital to achieve optimal properties.
* **Tempering:** **Must be tempered immediately** after quenching to room temperature. Temper at **540-600°C (1000-1110°F)** for at least 2 hours per cycle. **Double or triple tempering** is standard practice to transform retained austenite and achieve maximum hardness and stability.
**Disclaimer:** This information is for reference purposes. Specific processing parameters must be determined based on the specific product form, manufacturer's data, and intended application. Always consult the material supplier's data sheets for precise guidance.
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AISI Type M43 Molybdenum High Speed Tool Steel (UNS T11343) Specification
Dimensions
Size：
Diameter 20-1000 mm Length <6729 mm
Size:We can customized as required
Standard：
Per your request or drawing
We can customized as required
Properties（Theoretical）
Chemical Composition
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AISI Type M43 Molybdenum High Speed Tool Steel (UNS T11343) Properties
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Applications of AISI Type M43 Molybdenum High Speed Tool Steel Flange (UNS T11343)
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Chemical Identifiers AISI Type M43 Molybdenum High Speed Tool Steel Flange (UNS T11343)
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Packing of AISI Type M43 Molybdenum High Speed Tool Steel Flange (UNS T11343)
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Standard Packing:
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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 3200 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
