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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Carpenter Micro-Melt® 9 Annealed Tool Steel Flange Product Information
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Carpenter Micro-Melt® 9 Annealed Tool Steel Flange Synonyms
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Carpenter Micro-Melt® 9 Annealed Tool Steel Product Information
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### **Carpenter Micro-Melt® 9 Annealed Tool Steel: Premium Pre-Hardened Tool Steel for Machining**
**Product Overview**
Carpenter Micro-Melt® 9 Annealed is the supplied condition of the renowned Micro-Melt 9 Tough Treated tool steel. It is an air-hardening, tungsten-molybdenum high-carbon, high-chromium steel manufactured via Carpenter's proprietary powder metallurgy (PM) process. This "Micro-Melt" technique produces an exceptionally fine, uniform, and isotropic carbide structure in the **annealed (soft) state**, which is the optimal condition for machining and fabrication. The material is supplied ready for toolmakers to machine into complex shapes before undergoing final heat treatment to achieve its legendary toughness and wear resistance.
**Key Advantages in the Annealed State**
* **Superior Machinability:** The fine, uniform PM microstructure eliminates the large, abrasive carbide clusters found in conventional ingot-cast steels (like AISI A8/D2 types), resulting in better chip formation, longer tool life, and improved surface finish during milling, turning, and drilling.
* **Excellent Grindability:** Even in the annealed state, the homogeneous structure allows for faster and more predictable grinding operations with reduced risk of burning or cracking.
* **Uniform Response to Heat Treatment:** The isotropic nature ensures consistent and predictable transformation during hardening, minimizing distortion and dimensional variation. This allows for more precise "machining to size" before final heat treat.
* **Directional Strength & Toughness:** Unlike wrought steels, PM steels like Micro-Melt 9 exhibit identical mechanical properties in all directions (longitudinal, transverse, etc.), crucial for tools with complex geometries or multi-axial stress.
* **Predictable Performance:** The tightly controlled PM chemistry and structure provide reliable and repeatable results from batch to batch.
**Typical Chemical Composition (%)**
As an annealed version of the hardened grade, its composition is identical to the hardened Micro-Melt 9 (CPM 9T).
| Element | Carbon (C) | Chromium (Cr) | Molybdenum (Mo) | Tungsten (W) | Vanadium (V) | Silicon (Si) | Manganese (Mn) |
| :--- | :---: | :---: | :---: | :---: | :---: | :---: | :---: |
| **Content** | 0.50 - 0.60 | 4.75 - 5.25 | 1.30 - 1.80 | 1.30 - 1.80 | 0.90 - 1.10 | 0.15 - 0.40 | 0.20 - 0.50 |
**Physical & Mechanical Properties (Annealed Condition)**
* **Density:** 7.87 g/cm³ (0.284 lb/in³)
* **Hardness:** **200 - 230 HB** (Brinell) / **93 - 100 HRB** (Rockwell B). This is the standard supplied hardness, optimized for machinability.
* **Microstructure:** Consists of fine spheroidal carbides uniformly dispersed in a soft ferritic matrix.
* **Thermal Conductivity:** Moderate for an alloy steel in this state.
* **Machinability Rating:** Significantly better than conventional tool steels of similar alloy content (e.g., standard A8 or D2) due to the absence of massive carbides. Often rated at **65-75%** of that for a 1% carbon steel (AISI 1212).
**Heat Treatment (Post-Machining)**
*This material requires final heat treatment to achieve its service properties.*
* **Preheating:** Essential. Two-stage: 540-650°C (1000-1200°F) followed by 815-870°C (1500-1600°F).
* **Austenitizing:** 1010-1065°C (1850-1950°F) in a controlled atmosphere or salt bath.
* **Quenching:** Air cool or positive pressure air quench.
* **Tempering:** **Mandatory.** Double or triple temper immediately at 540-595°C (1000-1100°F) to achieve final service hardness of **58-62 HRC** and develop its signature high toughness.
* **Note:** Always follow Carpenter's latest published heat treatment guidelines for optimal results.
**International Standards & Cross-References**
* **Carpenter Designation:** Micro-Melt 9 Annealed (precursor to CPM 9T / 9TT).
* **UNS:** T30109 (same as the hardened grade).
* **AISI:** Modified Type A8 tool steel, produced via powder metallurgy.
* **European (EN):** The PM equivalent offers superior properties to conventional 1.2606 (55NiCrMoV7).
* **Japanese (JIS):** No direct PM equivalent. Superior to wrought SKD11 (JIS) in toughness and isotropy.
**Typical Applications (as a machined precursor)**
Micro-Melt 9 Annealed is purchased to fabricate tools that will later be heat treated. Its superior machinability makes it the preferred choice for complex or high-precision components that demand Micro-Melt 9's final performance.
1. **Complex Forming & Punching Dies:** Intricate blanking dies, progressive die components, and forming punches that are difficult to machine in a hardened state.
2. **Precision Molds:** Injection molds or die-casting mold inserts with deep cavities, thin ribs, or complex cooling channels that require extensive machining.
3. **Critical Cutting Tools:** Industrial knife bodies, specialized shear blades, and thread rolling dies where precise pre-hardening geometry is crucial.
4. **Tooling for Aerospace & Automotive:** High-stress jigs, fixtures, and master gauges that require both dimensional stability from the PM process and the final toughness of hardened 9TT.
5. **Prototype & Short-Run Tooling:** Ideal where excellent machinability speeds up development, and the subsequent heat treatment provides robust performance for testing.
**Conclusion**
Carpenter Micro-Melt® 9 Annealed Tool Steel is not merely a "soft steel," but a technologically advanced, ready-to-machine form of a premium high-toughness tool steel. It provides toolmakers and machinists with a material that offers significantly improved fabricability compared to its conventional counterparts, while guaranteeing a pathway to exceptional final performance. By starting with Micro-Melt 9 Annealed, manufacturers can produce more complex, reliable, and longer-lasting tools with greater efficiency and predictability.
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Carpenter Micro-Melt® 9 Annealed Tool Steel Specification
Dimensions
Size：
Diameter 20-1000 mm Length <6923 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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Carpenter Micro-Melt® 9 Annealed Tool Steel Properties
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Applications of Carpenter Micro-Melt® 9 Annealed Tool Steel Flange
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Chemical Identifiers Carpenter Micro-Melt® 9 Annealed Tool Steel Flange
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Packing of Carpenter Micro-Melt® 9 Annealed Tool Steel Flange
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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 3394 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
