Bisalloy Steel Flanges Structural 80PV

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. -: Bisalloy Steel Flanges Structural 80PV Thickness 6-<30 mm Product Information -:- For detailed product information, please contact sales. -: Bisalloy Steel Flanges Structural 80PV Thickness 6-<30 mm Synonyms -:- For detailed product information, please contact sales. -:

Bisalloy Steels Structural 80PV Thickness 6-<30 mm Product Information -:- For detailed product information, please contact sales. -: ### **Product Name:** Bisalloy Steels Structural 80PV (80PVQ) **Classification:** High-Strength, Quenched and Tempered Alloy Steel Plate for Pressure Vessel Applications --- ### **1. Overview** Bisalloy 80PV is a premium, **quenched and tempered (Q&T) alloy steel plate** specifically engineered for high-performance pressure vessel and structural applications where exceptional strength-to-weight ratio and superior toughness are critical. With a **minimum yield strength of 690 MPa (100 ksi)**, it belongs to the high-strength end of pressure vessel steels. The "PV" designation indicates its suitability for **pressure vessel** construction, with enhanced internal cleanliness, strict chemical control, and guaranteed through-thickness properties. Its quenched and tempered microstructure provides an outstanding combination of high strength, good weldability (with proper procedure), and excellent low-temperature impact resistance, enabling the design of lighter, more efficient, and highly reliable equipment. ### **2. Chemical Composition (Weight %, ladle analysis)** Composition is tightly controlled by Bisalloy to achieve the optimal balance of strength, toughness, and weldability. | Element | Minimum (%) | Maximum (%) | Notes | |---------|------------|------------|-------| | **Carbon (C)** | - | 0.16 | Low carbon content is key to ensuring good weldability and toughness at high strength levels. | | **Manganese (Mn)** | 0.80 | 1.60 | Provides solid solution strengthening and hardenability. | | **Silicon (Si)** | 0.15 | 0.50 | Deoxidizer and strengthening element. | | **Phosphorus (P)** | - | 0.020 | Very low to maximize toughness. | | **Sulfur (S)** | - | 0.010 | Very low to improve weldability, formability, and through-thickness properties. | | **Chromium (Cr)** | 0.30 | 1.00 | Enhances hardenability, strength, and tempering resistance. | | **Molybdenum (Mo)** | 0.10 | 0.30 | Increases hardenability and strength, and improves high-temperature strength. | | **Boron (B)** | *Optional* | *Optional* | May be added in minute quantities to significantly boost hardenability. | | **Carbon Equivalent (CEV/CET)** | - | ~0.50-0.55 (Typ.) | Indicates weldability; requires strict procedure controls (preheat, low-H₂ consumables). | **Note:** The exact proprietary chemistry may vary. The steel is fully killed and fine-grained. ### **3. Physical & Mechanical Properties** *Properties are for quenched and tempered condition. Values specified for thickness range 6 mm to <30 mm.* **Mechanical Properties (Guaranteed Minimum):** * **Yield Strength (Rp0.2, min):** 690 MPa (100 ksi) * **Tensile Strength (Rm):** 770 - 940 MPa (112 - 136 ksi) * **Elongation (A, min):** 14% (on gauge length 5.65√S₀) * **Impact Energy (Charpy V-Notch):** * **Test Temperature:** Typically **-40°C (-40°F)** or lower (e.g., -50°C, -60°C) can be specified. * **Minimum Average (Longitudinal):** **40 J** at specified temperature. * **Minimum Single Value:** Typically 32 J. * **Hardness (typical):** 240 - 290 HBW **Through-Thickness Properties (Z-Direction):** * **Reduction of Area (Z, min):** Commonly ≥ 35% per customer specification, demonstrating excellent resistance to lamellar tearing in highly restrained welded joints. **Physical Properties (Typical):** * **Density:** 7.85 g/cm³ * **Modulus of Elasticity:** 210 GPa * **Poisson's Ratio:** 0.3 ### **4. Key Characteristics** * **Exceptional Strength-to-Weight Ratio:** Enables significant reductions in plate thickness and equipment weight compared to conventional steels (e.g., A516 Gr.70), leading to material savings, lower transport costs, and potentially smaller foundations. * **Superior Low-Temperature Toughness:** The Q&T process delivers excellent impact properties at temperatures as low as -60°C, making it ideal for cryogenic and cold-climate applications. * **Good Weldability (with Controlled Procedures):** Despite its high strength, the low carbon content and fine-tuned alloying allow for reliable welding. However, it demands strict adherence to qualified Welding Procedure Specifications (WPS). * **Excellent Fatigue Resistance:** The clean, homogeneous Q&T microstructure provides enhanced resistance to cyclic loading. * **Guaranteed Through-Thickness Properties:** Critical for thick plates and highly constrained T-joints in pressure vessels, minimizing the risk of lamellar tearing. ### **5. Product Application** Bisalloy 80PV is specified for demanding pressure equipment and critical structures where performance and reliability are paramount: * **High-Pressure & Cryogenic Pressure Vessels:** Reactors, separators, and storage tanks for LNG, LPG, ammonia, and hydrogen. * **Mobile Pressure Equipment:** Skids, transportable modules, and ISO containers where weight is a major constraint. * **Mining & Mineral Processing:** High-wear, high-stress components in thickeners, flotation cells, and slurry tanks. * **Hydraulic & Pneumatic Accumulators:** For ultra-high-pressure fluid power systems. * **Critical Structural Components:** In offshore platforms, crane booms, and other heavy machinery where high strength and toughness are required. ### **6. International Standards & Specifications** Bisalloy 80PV is produced to meet or exceed several international standards and is often supplied to proprietary Bisalloy specifications. | Region / System | Standard & Designation | Scope / Notes | |----------------|----------------------|---------------| | **Bisalloy Specification** | **Bisalloy 80PV** | Proprietary mill specification with guaranteed properties. | | **European Union** | **EN 10028-6** | Pressure vessel steel plates, Q&T condition. Comparable to grades like **S690Q/QL/QL1**. | | **International / ISO** | **ISO 9328-6** | Similar to EN 10028-6. **Grade S690Q** is a close equivalent. | | **USA / ASTM** | **ASTM A517 / A832** | Grade H or similar quenched & tempered alloy steels for pressure vessels offer comparable strength, but chemistry may differ. | | **Australia / NZ** | **AS/NZS 3678** | Grade 800, though this is a structural rather than pressure vessel grade. | | **Japan** | **JIS G3126 SQV 570A/B** | High yield strength steel plates for pressure vessels with similar strength class. | ### **7. Available Forms & Processing** * **Standard Forms:** Supplied as **plates**. Thickness range: **6 mm to <30 mm** (as specified; also available in thicker sections). * **Condition:** **Quenched and Tempered (Q/T)**. * **Fabrication:** * **Welding:** **Requires a qualified WPS.** Key practices include: * Use of low-hydrogen, high-toughness consumables (e.g., matching or undermatching). * Mandatory pre-heat (typically 100-150°C minimum). * Strict control of heat input and interpass temperature (usually <250°C). * Strong recommendation for Post-Weld Heat Treatment (PWHT). * **Forming:** Good cold forming properties for moderate bends. Hot forming is possible but requires temperature control to avoid affecting the Q&T microstructure. * **Cutting:** All thermal cutting methods (plasma, laser, oxy-fuel) are suitable. For flame-cut edges, light grinding may be recommended to remove the heat-affected layer. ### **8. Why Choose Bisalloy 80PV?** Bisalloy is a globally recognized leader in high-strength quenched and tempered steels. Choosing 80PV provides: * **Certified Quality:** Full traceability with mill test certificates to international norms. * **Technical Support:** Access to specialized expertise in welding and fabrication of high-strength steels. * **Proven Performance:** A track record of success in some of the world's most demanding engineering projects. --- **Disclaimer:** This datasheet provides general information. For design and fabrication, always refer to the **official Bisalloy 80PV datasheet** and the **project-specific material test certificate**. Welding must be performed under a qualified WPS, often developed in consultation with Bisalloy's technical team. Compliance with the relevant pressure vessel design code (e.g., ASME Section VIII Div. 2, EN 13445) is mandatory. -:- For detailed product information, please contact sales. -: Bisalloy Steels Structural 80PV Thickness 6-<30 mm Specification Dimensions Size： Diameter 20-1000 mm Length <7396 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. -: Bisalloy Steels Structural 80PV Thickness 6-<30 mm Properties -:- For detailed product information, please contact sales. -:

Applications of Bisalloy Steel Flanges Structural 80PV Thickness 6-<30 mm -:- For detailed product information, please contact sales. -: Chemical Identifiers Bisalloy Steel Flanges Structural 80PV Thickness 6-<30 mm -:- For detailed product information, please contact sales. -:

Packing of Bisalloy Steel Flanges Structural 80PV Thickness 6-<30 mm -:- 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 3867 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