JIS SPHD Nonresulfurized 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. -: JIS SPHD Nonresulfurized Carbon Steel Flange Product Information -:- For detailed product information, please contact sales. -: JIS SPHD Nonresulfurized Carbon Steel Flange Synonyms -:- For detailed product information, please contact sales. -:

JIS SPHD Nonresulfurized Carbon Steel Product Information -:- For detailed product information, please contact sales. -: # **Product Name:** JIS SPHD Nonresulfurized Carbon Steel, Hot Rolled (Drawing Quality) **Overview** JIS SPHD is a **drawing quality, nonresulfurized, low-carbon steel** specified in the Japanese Industrial Standards (JIS). As part of the commercial hot-rolled steel family, it offers **superior ductility and more consistent formability** compared to the basic SPHC grade. The "D" in SPHD stands for **Drawing**, indicating its enhanced suitability for more demanding cold-forming operations, particularly pressing and drawing. Like SPHC, it is characterized by its nonresulfurized chemistry, meaning it has controlled, low sulphur content. SPHD is a versatile, formability-focused steel used in applications where the material must undergo significant plastic deformation without failure, and where a higher level of consistency in properties is desired over SPHC. **Key International Standards & Designation** * **Primary Standard:** **JIS G 3131:2022** - Hot-rolled mild steel plate, sheet and strip. * **Grade Designation:** **SPHD** * **S:** Steel (Kō). * **P:** Plate (板, Ita). * **H:** Hot rolled (熱間圧延, Nekkan Atsuen). * **D:** **Drawing** quality. * **Quality Hierarchy:** SPHD represents an intermediate quality level between **SPHC (Commercial)** and **SPHE (Extra-Deep Drawing)**. It provides a better balance of consistent formability and cost than SPHE. * **Common International Equivalents:** * **ASTM:** **A620** (Drawing Quality, Hot-Rolled Sheet) is a close functional equivalent. Also comparable to **SAE 1006** with drawing quality controls. * **DIN/EN:** **DC03** (cold-rolled equivalent) or **DD11** (hot-rolled equivalent, drawing quality). * **GB/T:** **SPHD** (directly adopted designation) or **08Al** (for deep drawing applications). **Chemical Composition (Ladle Analysis, % by weight, typical/guaranteed ranges for SPHD)** Chemistry is controlled more tightly than SPHC to ensure formability. * **Carbon (C):** **≤ 0.10%** (Very low, maximizes ductility). * **Manganese (Mn):** **≤ 0.50%** (Low and controlled). * **Phosphorus (P):** **≤ 0.040%** (Tighter than SPHC for better formability). * **Sulphur (S):** **≤ 0.035%** (Lower than SPHC, contributing to better edge formability and ductility - this is the "nonresulfurized" characteristic). * **Note:** Some mills may offer a narrower compositional range or apply microalloying (e.g., Ti, Nb) for better control of aging and grain size. **Physical & Mechanical Properties (Typical for hot-rolled, drawing quality)** While JIS G 3131 does not mandate guaranteed mechanical properties for SPHC/SPHD/SPHE, SPHD as a drawing quality grade is typically supplied with **agreed-upon or typical mechanical properties** to ensure performance in forming dies. * **Yield Strength (YP):** **≈ 160 - 220 MPa** (Tends to be lower and more consistent than SPHC). * **Tensile Strength (TS):** **≈ 270 - 350 MPa**. * **Elongation (El):** **≥ 35% - 42%** (Typically guaranteed minimums are agreed upon; values are higher and more consistent than SPHC). * **r-value (Plastic Strain Ratio):** May be reported or targeted by mills (e.g., typical average >1.0) to indicate drawing performance. * **n-value (Strain Hardening Exponent):** May also be controlled for consistent forming behavior. **Product Features** 1. **Enhanced & Consistent Formability:** The primary feature. Controlled chemistry and processing result in higher, more uniform elongation and better performance in **moderate to severe drawing, stretching, and forming** operations compared to SPHC. Reduces the risk of splitting or cracking in complex parts. 2. **Good Surface for Forming:** While still supplied with mill scale, the substrate is more homogeneous, leading to more consistent behavior in presses. 3. **Good Weldability:** Excellent weldability due to very low carbon content. 4. **Non-Aging or Stabilized Options:** Often available as **"Stabilized"** (e.g., with Titanium or Niobium treatment) to minimize yield point elongation and prevent stretcher strain marks (Lüders lines) during forming, providing a better surface finish on formed parts. **Typical Applications** SPHD is used for components that require more reliable forming than SPHC can guarantee. * **Automotive Components:** **Inner door panels, wheel housings, seat frames, brackets, and other moderately complex pressed parts**. * **Appliance & Furniture:** **Washing machine tubs, refrigerator liners, cabinet parts, and furniture frames** requiring deep draws or complex bends. * **General Metal Goods:** **Electrical enclosures, switch boxes, containers, and deeper-drawn housings**. * **Pipe & Profiles:** As feedstock for **welded tubes and roll-formed sections** where consistent ductility is key. **Available Forms & Processing** * **Forms:** **Hot-rolled sheets and strips** in coils, commonly used as feedstock for pickling and cold rolling, or supplied directly for hot-rolled forming. * **Surface Condition:** **Hot-rolled, with mill scale**. It is the preferred feedstock for **pickling lines** to produce high-quality Pickled & Oiled (PO) or hot-rolled annealed (HRA) material for critical forming. * **Processing:** **Excellent for pressing, deep drawing, stamping, and bending.** Can be welded and cut easily. --- **Critical Selection & Procurement Note** * **Formability-Driven Selection:** Choose SPHD over SPHC when part design involves **significant stretching, drawing, or complex multi-stage forming** where SPHC might exhibit inconsistent behavior or higher scrap rates. * **Agreed Properties:** Unlike structural steels, procurement often involves agreeing on **typical or minimum mechanical properties (especially Elongation)** with the supplier. These should be documented. * **Stabilized vs. Non-Stabilized:** For parts requiring a smooth, defect-free surface after forming (without Lüders lines), specify **"Stabilized" SPHD**. This may involve a slight cost premium. * **Surface Consideration:** For critical formed parts, the hot-rolled mill scale surface is often removed via pickling prior to forming. * **Not a Structural Grade:** Like SPHC, it is not a property-guaranteed structural steel. Do not use it for load-bearing calculations where minimum yield strength is required. * **Procurement Specification:** Clearly state **JIS G 3131 SPHD**, thickness, width, and any special requirements (e.g., stabilized, agreed elongation minimum, coil weight). -:- For detailed product information, please contact sales. -: JIS SPHD Nonresulfurized Carbon Steel Specification Dimensions Size： Diameter 20-1000 mm Length <5846 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. -: JIS SPHD Nonresulfurized Carbon Steel Properties -:- For detailed product information, please contact sales. -:

Applications of JIS SPHD Nonresulfurized Carbon Steel Flange -:- For detailed product information, please contact sales. -: Chemical Identifiers JIS SPHD Nonresulfurized Carbon Steel Flange -:- For detailed product information, please contact sales. -:

Packing of JIS SPHD Nonresulfurized 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 2317 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