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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Latrobe Marvac 300 VIM-VAR ; 5 RCS High Strength Maraging Steel Flange Product Information
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Latrobe Marvac 300 VIM-VAR ; 5 RCS High Strength Maraging Steel Flange Synonyms
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Latrobe Marvac 300 VIM-VAR ; 5 RCS High Strength Maraging Steel Product Information
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**Product Name:** Latrobe Marvac 300 VIM-VAR ; 5 RCS
**Product Form:** Premium Vacuum Melted Rounds (5-inch RCS - Round Cornered Square, or as specified)
**Material Type:** Ultra-High-Strength Maraging Steel
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### **1. Overview**
Latrobe Marvac 300 VIM-VAR in a 5 RCS form is a premium-grade, ultra-high-strength maraging steel produced via a dual vacuum melting process: Vacuum Induction Melting (VIM) followed by Vacuum Arc Remelting (VAR). This stringent melting regimen guarantees exceptional metal purity, minimal non-metallic inclusions, and superior structural homogeneity. Designed to achieve a nominal yield strength of 300 ksi (2068 MPa) after aging, it offers an outstanding combination of strength, toughness, and good fabrication characteristics, making it ideal for the most demanding aerospace, defense, and high-performance applications.
### **2. Chemical Composition (Typical Weight %)**
| Element | Content (%) | Element | Content (%) |
|---------|------------|---------|------------|
| **Iron (Fe)** | Balance | **Cobalt (Co)** | 8.0 - 9.0 |
| **Nickel (Ni)**| 18.0 - 19.0 | **Molybdenum (Mo)**| 4.0 - 5.0 |
| **Titanium (Ti)**| 0.5 - 0.8 | **Aluminum (Al)**| 0.05 - 0.15 |
| **Carbon (C)** | ≤ 0.03 | **Manganese (Mn)**| ≤ 0.10 |
| **Silicon (Si)**| ≤ 0.10 | **Sulfur (S)** | ≤ 0.01 |
| **Phosphorus (P)**| ≤ 0.01 | **Boron (B)** | ≤ 0.003 |
| **Zirconium (Zr)**| ≤ 0.01 | **Calcium (Ca)** | ≤ 0.05 |
**Note:** The composition is meticulously controlled to optimize the aging response and maximize hardenability while ensuring excellent ductility and toughness.
### **3. Physical & Mechanical Properties**
*Typical values for material in the peak-aged condition (aged at 480°C / 900°F for 3-5 hours).*
- **Tensile Strength:** 300 - 310 ksi (2068 - 2137 MPa)
- **Yield Strength (0.2% Offset):** 290 - 300 ksi (1999 - 2068 MPa)
- **Elongation:** 10 - 12%
- **Reduction in Area:** 50 - 55%
- **Hardness:** 52 - 54 HRC
- **Fracture Toughness (KIC):** > 80 ksi√in (typical)
- **Modulus of Elasticity:** ~ 28.5 x 10⁶ psi (196 GPa)
- **Density:** 0.290 lb/in³ (8.03 g/cm³)
- **Melting Point:** Approximately 1440°C (2625°F)
### **4. Key Characteristics**
- **Unmatched Strength & Toughness Combination:** Delivers ultra-high strength without compromising fracture toughness.
- **Superior Metallurgical Purity:** VIM-VAR processing drastically reduces gas content (O₂, H₂, N₂) and inclusions, leading to enhanced fatigue performance and reliability.
- **Excellent Fabricability:** Easily machined, formed, and welded in the soft, solution-annealed condition (typically 28-32 HRC), then simply aged to achieve full strength with minimal distortion.
- **Good Dimensional Stability:** Exhibits minimal volume change or warping during the low-temperature aging process.
- **High Stress-Corrosion Cracking Resistance:** Superior to many other ultra-high-strength steels.
### **5. Product Applications**
This high-integrity material is specified for critical, performance-driven components where failure is not an option:
- **Aerospace:** Primary airframe structures, landing gear components (axles, pistons), rocket motor cases, helicopter rotor hubs, and missile airframes.
- **Defense:** Armor-piercing penetrators, torpedo components, lightweight armored vehicle parts, and critical fasteners for military platforms.
- **High-Performance Motorsports:** Formula One connecting rods, transmission gears, and suspension components where weight savings and strength are paramount.
- **Tooling:** High-pressure die-casting cores and inserts, plastic injection molds requiring high hardness and thermal fatigue resistance.
- **Specialty Engineering:** High-load pins, shafts, and actuators in oil & gas, and racing sailboat components.
### **6. International Standards & Specifications**
This product complies with leading international aerospace and material standards:
- **AMS (Aerospace Material Specification):** AMS 6512 ("Maraging Steel, 18.5Ni-9.0Co-4.9Mo-0.60Ti, Vacuum Melted, 300 ksi (2068 MPa) Yield Strength")
- **ASTM (American Society for Testing and Materials):** ASTM A579 (Standard Specification for Superstrength Alloy Steel Forgings)
- **U.S. Military Standard:** MIL-DTL-46850 (Maraging Steel, 18 Percent Nickel Alloy)
- **European Standards:** Can be supplied to equivalent specifications such as proprietary requirements from **Airbus, Boeing, Rolls-Royce**, or in accordance with **EN (EuroNorm)** guidelines for similar grades.
### **7. Available Forms & Processing**
- **Form:** 5-inch RCS (Round Cornered Square) – a square cross-section with rounded corners, often preferred for forging stock or specific machining applications. Other sizes and forms (rounds, billets) are available.
- **Standard Condition:** Supplied in the **solution annealed** condition (815-830°C / 1500-1525°F, air cool), ready for machining.
- **Final Heat Treatment:** After fabrication, components are aged at **480°C (900°F) for 3-5 hours** to achieve the full ultra-high-strength properties.
### **8. Why Choose Latrobe Marvac 300 VIM-VAR?**
As a product of **Latrobe Specialty Metals**, a world leader in premium melt technology, this material guarantees batch-to-batch consistency and traceability. The VIM-VAR process is key to achieving the superior **transverse ductility and toughness** essential for highly stressed, critical rotating or structural components. Choosing this grade ensures performance, safety, and reliability in the most extreme operating environments.
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**Disclaimer:** The information provided is for general reference. Final material properties are dependent on the specific heat treatment cycle and processing history. For design and procurement, always consult the latest official material datasheets and certify against the required purchase specification.
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Latrobe Marvac 300 VIM-VAR ; 5 RCS High Strength Maraging Steel Specification
Dimensions
Size：
Diameter 20-1000 mm Length <7379 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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Latrobe Marvac 300 VIM-VAR ; 5 RCS High Strength Maraging Steel Properties
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Applications of Latrobe Marvac 300 VIM-VAR ; 5 RCS High Strength Maraging Steel Flange
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Chemical Identifiers Latrobe Marvac 300 VIM-VAR ; 5 RCS High Strength Maraging Steel Flange
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Packing of Latrobe Marvac 300 VIM-VAR ; 5 RCS High Strength Maraging 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 3850 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
