EN SPH235 High Manganese Pressure Vessel Carbon 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. -: EN SPH235 High Manganese Pressure Vessel Carbon Steel Flange Product Information -:- For detailed product information, please contact sales. -: EN SPH235 High Manganese Pressure Vessel Carbon Steel Flange Synonyms -:- For detailed product information, please contact sales. -:

EN SPH235 High Manganese Pressure Vessel Carbon Steel Product Information -:- For detailed product information, please contact sales. -: # **Product Name:** EN S235 Pressure Vessel Steel Plate (Hot Rolled) **Overview** EN S235, in the context of pressure vessels, is a **non-alloy carbon-manganese steel** specifically designated for welded pressure equipment. It is a **general-purpose steel for pressure purposes**, offering a balance of adequate strength, good weldability, and formability at an economical cost. The **"SPH" prefix is not a standard EN designation**; it may be a proprietary steelmaker's designation or a project-specific code. The correct standardized designation for this quality of pressure vessel steel would typically be **P235GH** (for plates) under EN 10028-2. This material is suitable for the construction of pressure vessels, boilers, and storage tanks operating at moderate temperatures and pressures. **Key International Standards & Clarification** * **Primary Standard:** **EN 10028-2:2017** - Flat products made of steels for pressure purposes - Part 2: Non-alloy and alloy steels with specified elevated temperature properties. * The correct equivalent grade for S235 quality is **P235GH**. * **Designation Decoding (P235GH):** * **P:** Steel for pressure purposes. * **235:** Minimum specified yield strength (ReH) in MPa at room temperature for thicknesses ≤ 16mm. * **G:** Indicates fine grain practice (often achieved by aluminum treatment). * **H:** Indicates suitability for use at elevated temperatures (property values specified up to ~300°C). * **Interpretation of "SPH235":** This appears to be a **non-standard combination**. "S" typically denotes structural steel (EN 10025), "P" denotes pressure vessel steel (EN 10028). "SPH" could be a historical or mill-specific code. **For procurement and compliance, the standardized designation must be used.** * **Clarification on "High Manganese":** This is a **mischaracterization**. As a general-purpose pressure vessel steel, its manganese content is standard (typically ≤1.40%) and not elevated or "high" in a technical sense. Its application defines it as a pressure vessel steel, not its alloy content. **Chemical Composition (Ladle Analysis, % by weight, typical for P235GH per EN 10028-2)** * **Carbon (C):** ≤ **0.16%** * **Manganese (Mn):** ≤ **1.40%** * **Phosphorus (P):** ≤ **0.025%** * **Sulphur (S):** ≤ **0.015%** * **Silicon (Si):** ≤ **0.35%** * **Aluminum (Alt):** ≥ **0.020%** (for fine grain practice) * **Nitrogen (N):** ≤ **0.012%** **Physical & Mechanical Properties (for hot-rolled/normalized condition, thickness ≤ 16mm)** * **Yield Strength (ReH) at 20°C:** ≥ **235 MPa** * **Tensile Strength (Rm):** **360 - 510 MPa** * **Elongation (A):** ≥ **25%** * **Impact Energy:** Values are tested and reported (e.g., at 0°C or +20°C). For guaranteed low-temperature toughness, subgrades like **P235NL** (impact tested at -50°C) must be specified. * **Elevated Temperature Yield Strength:** Guaranteed minimum values are provided in the standard for temperatures up to **300°C**. * **Ultrasonic Testing (UT):** Plates are typically subjected to mandatory non-destructive testing per **EN 10160** to ensure internal soundness. **Product Features** 1. **Pressure Purpose Certified:** Manufactured and tested under strict quality regimes specific to pressure equipment, ensuring higher homogeneity and traceability. 2. **Good Weldability:** Low carbon equivalent allows for reliable welding with common processes. Post-weld heat treatment (PWHT) is often applied for stress relief. 3. **Fine Grain Practice:** Ensures better toughness and more uniform properties. 4. **Economical for Moderate Service:** The standard choice for many static pressure vessels in non-corrosive and non-cryogenic services. **Typical Applications** * **Class I & II Pressure Vessels:** Air receivers, low-pressure storage tanks, heat exchanger shells (non-firing), and process vessels in chemical, food, and beverage industries. * **Boiler Components:** Non-firing parts such as feedwater tanks, deaerators, and economizer casings. * **General Pressure Equipment:** Where design conditions (pressure, temperature) are within the moderate capability of this grade. **Available Forms & Quality Supplements** * **Forms:** Hot-rolled plates. * **Delivery Condition:** Typically supplied in the normalized (N) condition. * **Mandatory Certification:** Supplied with a **Inspection Certificate 3.1 per EN 10204**, which is mandatory for pressure equipment under the Pressure Equipment Directive (PED). --- **Critical Procurement Note** 1. **Use Standard Designation:** Do not use "SPH235". For general pressure vessel plate, specify **EN 10028-2 P235GH**. If low-temperature impact toughness is required, specify the appropriate subgrade (e.g., **P235NL** for -50°C). 2. **Regulatory Compliance:** Material for pressure equipment in Europe must comply with the **Pressure Equipment Directive (PED)** and carry CE marking. The EN 10204 3.1 certificate is a key part of this. 3. **Temperature Limits:** Confirm the suitability of the grade's elevated temperature properties for the maximum design temperature. 4. **Not "High Manganese":** This is not an accurate or useful descriptor for this material. -:- For detailed product information, please contact sales. -: EN SPH235 High Manganese Pressure Vessel Carbon Steel Specification Dimensions Size： Diameter 20-1000 mm Length <5843 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. -: EN SPH235 High Manganese Pressure Vessel Carbon Steel Properties -:- For detailed product information, please contact sales. -:

Applications of EN SPH235 High Manganese Pressure Vessel Carbon Steel Flange -:- For detailed product information, please contact sales. -: Chemical Identifiers EN SPH235 High Manganese Pressure Vessel Carbon Steel Flange -:- For detailed product information, please contact sales. -:

Packing of EN SPH235 High Manganese Pressure Vessel Carbon 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 2314 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