ASTM A607 Steel Flange, grade 65

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. -: ASTM A607 Steel Flange, grade 65, cold rolled Product Information -:- For detailed product information, please contact sales. -: ASTM A607 Steel Flange, grade 65, cold rolled Synonyms -:- For detailed product information, please contact sales. -:

ASTM A607 Steel, grade 65, cold rolled Product Information -:- For detailed product information, please contact sales. -: ## **Product Technical Data Sheet: ASTM A607 Grade 65 Cold-Rolled Steel** ### **1. PRODUCT OVERVIEW** **ASTM A607 Grade 65 Cold-Rolled** is a **high-strength, low-alloy (HSLA) steel** produced by further processing hot-rolled coils through a cold-reduction mill at room temperature. This process significantly enhances the steel's surface finish, dimensional accuracy, and mechanical strength. As part of the ASTM A607 specification, it retains the defining characteristic of **improved atmospheric corrosion resistance** (approximately twice that of standard carbon steels) due to its mandated copper content, while achieving a **minimum yield strength of 65 ksi (448 MPa)**. The cold-rolling process imparts a smoother, more uniform surface and tighter tolerances, making it ideal for applications where appearance, precise forming, and high strength are paramount. ### **2. INTERNATIONAL STANDARDS & SPECIFICATIONS** * **Primary Standard:** **ASTM A607 / A607M** - "Standard Specification for Steel, Sheet and Strip, High-Strength, Low-Alloy, Hot-Rolled and Cold-Rolled, with Improved Atmospheric Corrosion Resistance." This standard explicitly covers both hot-rolled and cold-rolled conditions. * **Dimensional & Quality Standards:** * **ASTM A568** - Standard Specification for Steel, Sheet, Carbon, and High-Strength, Low-Alloy, Hot-Rolled and Cold-Rolled, General Requirements (governs tolerances). * **ASTM A749** - Standard Specification for Steel, Strip, Carbon and High-Strength, Low-Alloy, Hot-Rolled and Cold-Rolled, General Requirements. * **Testing Standard:** **ASTM A370** - Standard Test Methods and Definitions for Mechanical Testing of Steel Products. ### **3. CHEMICAL COMPOSITION (Ladle Analysis)** The chemical composition for Grade 65 is identical in both hot-rolled and cold-rolled forms, as it is the fundamental recipe for achieving the steel's core properties. The composition meets the following requirements per ASTM A607. | Element | Symbol | Composition (%, max unless noted) | Role & Influence | | :--- | :--- | :--- | :--- | | Carbon | C | 0.22 | Provides base strength. Kept moderate for formability/weldability balance. | | Manganese | Mn | 1.35 | Solid solution strengthener; improves hardenability. | | Phosphorus | P | 0.04 | Increases strength and atmospheric corrosion resistance. | | Sulfur | S | 0.05 | Impurity; controlled for better ductility. | | Silicon | Si | 0.30 | Deoxidizer; contributes to strength. | | Copper | Cu | **0.20 min** | **Critical** for enhanced atmospheric corrosion resistance. | | Columbium (Nb) | Cb | 0.005 - 0.05* | Primary microalloying element for grain refinement and precipitation hardening. | | Vanadium | V | 0.01 - 0.10* | Alternative microalloying element for precipitation strengthening. | | Nitrogen | N | 0.015 | Supports nitride formation for strengthening. | **\*** Note: The standard requires a minimum combined content of Cb, V, and N to achieve the HSLA strengthening mechanism. The exact formulation is proprietary to the steel producer. ### **4. PHYSICAL & MECHANICAL PROPERTIES** #### **Mechanical Properties (Typical, as Cold-Rolled)** *Note: Cold rolling increases yield and tensile strength compared to the hot-rolled state due to work hardening.* | Property | Value (Imperial) | Value (Metric) | Condition / Note | | :--- | :--- | :--- | :--- | | **Yield Strength (min)** | 65 ksi | 448 MPa | As cold-rolled (full hard or similar temper). | | **Tensile Strength** | 75 - 95 ksi | 517 - 655 MPa | Higher and more consistent than hot-rolled. | | **Elongation in 2" (50mm)** | 12% - 18% (Typ.) | 12% - 18% (Typ.) | Lower than hot-rolled due to work hardening. | | **Modulus of Elasticity** | 29,000 ksi | 200 GPa | Unaffected by cold working. | | **Hardness (Rockwell B)** | 85 - 100 HRB | ~ | Varies with exact reduction and temper. | #### **Physical Properties (Typical)** | Property | Value | | :--- | :--- | | **Density** | 0.284 lb/in³ (7,850 kg/m³) | | **Thermal Conductivity** | ~28 W/m·K (at 100°C) | | **Coefficient of Thermal Expansion** | 11.7 x 10⁻⁶ /°C | | **Surface Finish (Ra)** | 0.8 - 2.5 µm (32 - 100 µin) | *Significantly smoother than hot-rolled.* | ### **5. KEY CHARACTERISTICS & PROCESSING** * **Superior Surface Finish:** Cold rolling produces a smooth, scale-free surface ideal for high-visibility applications or for receiving high-quality paint, plating, or other decorative finishes without extensive pre-treatment. * **Enhanced Strength & Hardness:** The cold reduction process increases dislocation density, resulting in higher yield and tensile strength, and greater hardness in the as-rolled state compared to its hot-rolled counterpart. * **Precise Dimensional Tolerances:** Thickness, width, and flatness are controlled to much tighter tolerances (per ASTM A568) than hot-rolled products, crucial for precision fabrication and stamping. * **Formability:** Exhibits good **uniform elongation** but lower **total elongation** than hot-rolled. Suitable for moderate bending and forming. For severe forming, a subsequent **annealing** process may be applied to restore ductility (producing "annealed" or "skin-passed" tempers). * **Weldability:** **Good to Fair.** The higher carbon equivalent and work-hardened structure require careful welding procedure development. Lower heat input processes (e.g., GMAW) are preferred. Preheating may be necessary for thicker gauges. * **Corrosion Resistance:** Inherently superior to plain carbon steels. The excellent surface finish further enhances the performance and adhesion of applied coatings. ### **6. PRODUCT APPLICATIONS** ASTM A607 Grade 65 Cold-Rolled is specified where **excellent surface quality, precise dimensions, and high strength** converge. * **Automotive Components:** Structural reinforcements (pillars, rails), chassis parts, seat frames, bumper beams, and safety-critical components requiring high strength-to-weight ratios. * **Appliance & Cabinet Manufacturing:** High-strength frames for agricultural machinery, enclosures for heavy-duty electrical equipment, and structural parts where appearance matters. * **Storage & Shelving Systems:** High-load warehouse racking uprights and beams, industrial shelving where slim profiles with high strength are needed. * **Building Products:** High-quality architectural sections, door frames, and curtain wall components that require a superior painted finish. * **Material Handling:** Forklift components, conveyor system structural parts, and custom fabrications for logistics equipment. ### **7. AVAILABILITY & TEMPER DESIGNATIONS** * **Forms:** Primarily supplied as **cold-rolled sheet and strip** in coils or cut lengths. * **Common Tempers:** Supplied in various tempers to suit forming needs: * **Full Hard (No. 1):** Maximum strength, minimal formability (as-cold-rolled). * **Skin-Passed (No. 2):** Slightly tempered for improved flatness and limited formability. * **Annealed (Soft):** Heat-treated to restore ductility for severe forming, then possibly skin-passed. --- **Disclaimer:** This data sheet summarizes information from the ASTM A607 standard and typical industry data. For project-critical specifications, always consult the official ASTM standard and the mill's certified test report for the specific material lot. Mechanical properties can vary based on the manufacturer's process and final temper. -:- For detailed product information, please contact sales. -: ASTM A607 Steel, grade 65, cold rolled Specification Dimensions Size： Diameter 20-1000 mm Length <4729 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. -: ASTM A607 Steel, grade 65, cold rolled Properties -:- For detailed product information, please contact sales. -:

Applications of ASTM A607 Steel Flange, grade 65, cold rolled -:- For detailed product information, please contact sales. -: Chemical Identifiers ASTM A607 Steel Flange, grade 65, cold rolled -:- For detailed product information, please contact sales. -:

Packing of ASTM A607 Steel Flange, grade 65, cold rolled -:- 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 1200 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