ASTM A607 Steel, grade 65, hot rolled

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

ASTM A607 Steel, grade 65, hot rolled Product Information -:- For detailed product information, please contact sales. -: ## **Product Technical Data Sheet: ASTM A607 Grade 65 Hot-Rolled Steel** --- ### **1. PRODUCT OVERVIEW** **ASTM A607 Grade 65** is a **high-strength, low-alloy (HSLA) structural steel** supplied in the hot-rolled condition. Designated under the ASTM A607 specification, it is characterized by its **enhanced atmospheric corrosion resistance** (approximately twice that of standard carbon steel) and a **minimum yield strength of 65 ksi (448 MPa)**. The "Grade 65" refers directly to this yield strength threshold. This steel is **microalloyed** with elements like columbium (niobium) or vanadium, which provide strengthening through grain refinement and precipitation hardening, eliminating the need for costly heat treatments. It offers an excellent balance of strength, formability, and weldability, making it a preferred material for weight-saving designs in demanding environments. ### **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." * **Alternative/Related Standards:** * **SAE J1392 / J1442** often reference similar grades. * Dimensional tolerances typically conform to **ASTM A568** (for sheet/strip) or **ASTM A6** (for plates). * **ASTM A370** covers standard test methods for mechanical properties. * **Note:** This grade is a direct competitor and often functionally interchangeable with other HSLA grades like **ASTM A572 Grade 50**, but A607 specifically mandates **improved corrosion resistance** via a minimum copper content. ### **3. CHEMICAL COMPOSITION (Ladle Analysis, Maximum % or Range)** The composition is key to its properties. The following table details the requirements per ASTM A607 for Grade 65. | Element | Symbol | Composition (%) | Role & Influence | | :--- | :--- | :--- | :--- | | Carbon | C | 0.22 max | Provides strength but reduces weldability and toughness. Kept low for improved weldability. | | Manganese | Mn | 1.35 max | Enhances strength and hardenability; aids in deoxidation. | | Phosphorus | P | 0.04 max | Increases strength and improves atmospheric corrosion resistance. | | Sulfur | S | 0.05 max | Impurity; kept low to preserve ductility and weldability. | | Silicon | Si | 0.30 max | Primary deoxidizer; contributes to strength. | | Copper | Cu | **0.20 min** | **Critical element** for imparting improved atmospheric corrosion resistance. | | Columbium (Niobium) | Cb (Nb) | **0.005 - 0.05*** | Primary microalloying element. Refines grain structure and provides precipitation strengthening (HSLA mechanism). | | Vanadium | V | **0.01 - 0.10*** | Alternative/complementary microalloying element for precipitation strengthening. | | Nitrogen | N | 0.015 max | Can form strengthening nitrides with V/Cb; controlled to prevent brittleness. | **\*** Note: The standard requires a minimum combined content of Columbium, Vanadium, and Nitrogen for microalloying. The exact combination is at the producer's discretion to meet mechanical properties. ### **4. PHYSICAL & MECHANICAL PROPERTIES** #### **Mechanical Properties (Typical, as Hot-Rolled)** | Property | Value (Imperial) | Value (Metric) | Test Standard | | :--- | :--- | :--- | :--- | | **Yield Strength (min)** | 65 ksi | 448 MPa | ASTM A370 | | **Tensile Strength** | 80 - 100 ksi (Typ.) | 552 - 690 MPa (Typ.) | ASTM A370 | | **Elongation in 2" (50mm) (min)** | 18% - 22%* | 18% - 22%* | ASTM A370 | | **Modulus of Elasticity** | 29,000 ksi | 200 GPa | - | | **Poisson's Ratio** | 0.29 | 0.29 | - | **\*** Minimum elongation varies with specimen orientation and product thickness; refer to A607 for detailed tables. #### **Physical Properties (Typical)** | Property | Value | | :--- | :--- | | **Density** | 0.284 lb/in³ (7,850 kg/m³) | | **Thermal Conductivity (at 100°C)** | 28-30 W/m·K | | **Coefficient of Thermal Expansion (20-100°C)** | 11.7 x 10⁻⁶ /°C (6.5 x 10⁻⁶ /°F) | | **Specific Heat Capacity** | ~450 J/kg·K | ### **5. KEY CHARACTERISTICS & PROCESSING** * **Corrosion Resistance:** Exhibits significantly better resistance to atmospheric rusting than plain carbon steels (e.g., ASTM A36) due to the protective oxide layer formed with copper and phosphorus. * **Weldability:** **Good.** Common methods like SMAW (Stick), GMAW (MIG), and SAW (Sub-Arc) are applicable. Preheating (e.g., 50-150°F / 10-65°C) is recommended for thicker sections (> ¾ in / 19 mm) to control hydrogen-induced cracking, especially given the higher strength. * **Formability:** Suitable for moderate bending and cold forming. The minimum bend radius is typically larger than for lower-strength steels. * **Machinability:** Fair. Its higher strength and toughness result in lower machinability ratings compared to mild steels, requiring appropriate tooling and speeds. * **Surface:** Characteristic blue-gray **mill scale** from the hot-rolling process. For painting or coating, descaling (e.g., abrasive blasting, pickling) is required. ### **6. PRODUCT APPLICATIONS** This material is engineered for structural applications where reducing weight, increasing payload, or improving durability is critical. * **Construction & Infrastructure:** Building frames, bridges, transmission and communication towers, lightweight structural supports. * **Commercial Vehicles:** Truck chassis, trailer frames, dump truck bodies, refuse containers, crane carrier frames. * **Agricultural & Mining Equipment:** Combine harvester frames, tractor components, excavator booms, loader arms, mining tub frames. * **Material Handling:** Forklift masts, heavy-duty shelving, warehouse racking systems, conveyor support structures. * **Energy & Transportation:** Wind turbine internal structures, rail car components, shipping container corner posts and frames. ### **7. AVAILABILITY & IDENTIFICATION** * **Forms:** Typically supplied as **hot-rolled sheet, strip, plate, and bars**. * **Thickness:** Commonly available from about 0.075 in (1.9 mm) up to 1-2 inches (25-50 mm) or more, depending on the producer. * **Identification:** Material is usually marked with the **ASTM designation (A607)**, **Grade (65)**, heat number, and manufacturer's logo. --- **Disclaimer:** This data sheet provides typical information based on the ASTM A607 standard. For critical applications, always consult the official ASTM specification and the manufacturer's certified test reports for the specific material lot. Processing recommendations (welding, forming) are general; detailed procedures should be developed for each application. -:- For detailed product information, please contact sales. -: ASTM A607 Steel, grade 65, hot rolled Specification Dimensions Size： Diameter 20-1000 mm Length <4728 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, hot rolled Properties -:- For detailed product information, please contact sales. -:

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

Packing of ASTM A607 Steel, grade 65, hot 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 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 1199 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