ASTM A607 Steel, grade 50, cold rolled

ASTM A607 Steel, grade 50, cold rolled Product Information -:- For detailed product information, please contact sales. -: ASTM A607 Steel, grade 50, cold rolled Synonyms -:- For detailed product information, please contact sales. -:

ASTM A607 Steel, grade 50, cold rolled Product Information -:- For detailed product information, please contact sales. -: ## **Product Datasheet: ASTM A607 Grade 50 Cold-Rolled Steel Sheet & Strip** **Product Overview** ASTM A607 Grade 50 Cold-Rolled is a **premium high-strength, low-alloy (HSLA) steel sheet and strip** that combines **50 ksi minimum yield strength**, guaranteed **atmospheric corrosion resistance**, and the superior **surface quality and dimensional precision** of cold-rolling. As part of the A607 specification, the cold-rolled variant undergoes additional processing that refines its microstructure, enhances its mechanical consistency, and provides a smooth, uniform surface ideal for high-quality painted or plated finishes. The mandatory copper content ensures it offers approximately **twice the atmospheric corrosion resistance** of plain carbon steels. This grade is engineered for applications where strength, durability, and aesthetic appearance are equally critical. **Key International Standards** * **Primary Standard:** **ASTM A607** - Standard Specification for Steel, Sheet and Strip, High-Strength, Low-Alloy, Columbium or Vanadium, or Both, Hot-Rolled and Cold-Rolled. * **Governing Specification:** This product conforms to the requirements for **Grade 50** in the **cold-rolled** condition as defined in ASTM A607. * **Type Classification:** **Type 1 (Columbium)** or **Type 2 (Vanadium)**. The type specifies the primary microalloying element used for grain refinement and precipitation strengthening. * **Corrosion Resistance:** Requires a **minimum copper content of 0.20%**, providing inherent, guaranteed atmospheric corrosion resistance. This makes it a true "weathering steel" in sheet form, even when painted. * **Material Condition:** Supplied in the **cold-rolled, annealed, and temper-rolled (skin passed)** condition. This process sequence ensures the required strength, ductility, and a uniform matte or bright surface finish suitable for direct painting. **Chemical Composition (Weight % - ASTM A607 Grade 50 Requirements)** Chemistry is optimized for strength, corrosion resistance, and excellent cold formability. | Element | Requirement (Max, unless noted) | Purpose & Note | | :--- | :--- | :--- | | **Carbon (C)** | 0.23% | Controlled for strength; lower than in as-hot-rolled state due to annealing. | | **Manganese (Mn)** | 1.35% | Solid solution strengthening. | | **Phosphorus (P)** | 0.04% | Impurity control. | | **Sulfur (S)** | 0.05% | Impurity control. | | **Silicon (Si)** | 0.30% | Deoxidizer. | | **Copper (Cu)** | **0.20% min** | **Mandatory** for atmospheric corrosion resistance. | | **Columbium (Cb/Nb)** | 0.05% Max (Type 1) | Grain refiner for Type 1. | | **Vanadium (V)** | 0.15% Max (Type 2) | Precipitation strengthener for Type 2. | | **Carbon Equivalent (C.E. IIW)** | -- | Typically low (~0.35-0.42), indicating **excellent weldability**. | **Physical & Mechanical Properties** | Property | Requirement (ASTM A607 Grade 50) | Advantages of Cold-Rolled Condition | | :--- | :--- | :--- | | **Yield Strength (Min)** | 50 ksi (345 MPa) | Highly consistent and uniform across the coil/ sheet. | | **Tensile Strength** | 65 ksi (450 MPa) min | Typically 70 - 80 ksi (483 - 552 MPa). | | **Elongation in 2" (Min)** | 20% | **Superior ductility** compared to hot-rolled due to annealing, enabling more complex forming. | | **Surface Finish** | **Smooth, matte finish** (standard temper roll). | Free of mill scale; provides an exceptional substrate for painting, plating, or powder coating. | | **Flatness & Dimensional Tolerance** | Conforms to **ASTM A568** for cold-rolled sheet. | **Tighter tolerances** and better flatness than hot-rolled, critical for precision fabrication and assembly. | | **Atmospheric Corrosion Resistance** | ~2x that of plain carbon steel. | Integral property; if the finish is damaged, the base steel forms a protective patina. | | **Key Feature** | **High-Performance Formable Weathering Steel:** Delivers the strength of 50 ksi HSLA, the corrosion resistance of a weathering steel, and the formability/surface quality of a premium cold-rolled product in a single, engineered material. | **Product Applications** ASTM A607 Grade 50 cold-rolled sheet is specified for high-end fabricated products where performance, durability, and finish quality are non-negotiable. * **Automotive & Truck Components:** Structural body-in-white parts, chassis reinforcements, door beams, and high-strength brackets requiring a paintable surface. * **Agricultural & Construction Equipment:** Cab structures, interior panels, access doors, and components subject to both high stress and corrosive environments. * **Building Products & Architecture:** High-quality curtain wall systems, trim, fascia, roof panels, and other architectural elements where a superior painted finish is required. * **Appliances & Furniture:** Structural frames for outdoor furniture, commercial appliances, and shelving systems needing strength and corrosion resistance. * **Electrical & HVAC Enclosures:** Cabinets, housings, and ductwork for outdoor or harsh indoor environments. * **Material Handling:** Shelving, rack components, and container parts. **Advantages & Fabrication Notes** * **Excellent Weldability & Formability:** The annealing process restores ductility, making it exceptionally suitable for **severe cold forming**, including deep drawing, stamping, and complex bending. It welds easily with all standard processes (GMAW, GTAW, Resistance Welding). * **Superior Paint Adhesion & Finish:** The clean, scale-free surface ensures optimal adhesion for paints, powder coatings, and electroplating, resulting in a higher-quality, more durable finish than possible on hot-rolled steel. * **Lifecycle Durability:** The combination of a robust organic coating *and* a corrosion-resistant substrate provides a dual-layer of protection, significantly extending service life, especially in edge and scratch-prone areas. * **Cost Premium Justified:** Commands a higher price than hot-rolled A607 due to the added cold reduction, annealing, and finishing processes. This cost is offset by reduced surface preparation, improved manufacturing yields, and a superior final product. * **Availability:** Commonly available in a range of tempers (e.g., skin-passed) to balance formability and strength (yield point elongation). **Disclaimer:** This datasheet describes **ASTM A607 Grade 50 Cold-Rolled** sheet and strip. For procurement, specify: **ASTM A607, Grade 50, cold-rolled, annealed, and temper-rolled**. The **surface finish** (e.g., matte, bright) and **dimensional tolerances per ASTM A568** should also be indicated. **Critical Distinctions:** * **vs. Hot-Rolled A607 Grade 50:** The cold-rolled version offers vastly better surface quality, formability, and dimensional control, making it suitable for more complex parts and high-finish applications. * **vs. ASTM A606 Type 4 Cold-Rolled:** A607 Grade 50 is a **property-guaranteed** weathering steel (min 50 ksi YS), while A606 Type 4 is **chemistry-based** with typical properties. They are often used interchangeably, but A607 provides a stronger mechanical guarantee. * **vs. Non-Weathering HSLA (e.g., A1008):** The key differentiator is the mandatory copper content and guaranteed corrosion resistance of A607. This material is the optimal choice for designers and engineers seeking to maximize product performance, durability, and aesthetic quality in demanding environments. -:- For detailed product information, please contact sales. -: ASTM A607 Steel, grade 50, cold rolled Specification Dimensions Size： Diameter 20-1000 mm Length <4723 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 50, cold rolled Properties -:- For detailed product information, please contact sales. -:

Applications of ASTM A607 Steel, grade 50, cold rolled -:- For detailed product information, please contact sales. -: Chemical Identifiers ASTM A607 Steel, grade 50, cold rolled -:- For detailed product information, please contact sales. -:

Packing of ASTM A607 Steel, grade 50, 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 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 1194 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