ASTM A 1011, Hot Rolled Carbon Steel Tube,Pipe, Structural Steel Tube,Pipe (SS)

AK Steel Tube ASTM A 1011, Grade 30 Hot Rolled Carbon Steel Tube, Structural Steel Tube (SS) Product Information -:- For detailed product information, please contact sales. -: AK Steel Tube ASTM A 1011, Grade 30 Hot Rolled Carbon Steel Tube, Structural Steel Tube (SS) Synonyms -:- For detailed product information, please contact sales. -:

AK Steel ASTM A 1011, Grade 30 Hot Rolled Carbon Steel, Structural Steel (SS) Product Information -:- For detailed product information, please contact sales. -: **Product Name:** AK Steel ASTM A1011, Grade 30 Hot-Rolled Carbon Steel, Structural Steel (SS) --- ### **1. Overview** AK Steel's ASTM A1011 Grade 30 is a general-purpose, hot-rolled low-carbon structural steel sheet and strip. It offers a fundamental combination of modest strength, good formability, and weldability at an economical cost. As one of the most commonly specified hot-rolled grades, it is a versatile workhorse material for a wide range of structural and fabrication applications where high strength is not the primary requirement. The "Grade 30" designation indicates a minimum yield strength of 30 ksi. --- ### **2. International Standards** This product conforms primarily to the following widely recognized North American standard: * **ASTM A1011 / A1011M:** Standard Specification for Steel, Sheet and Strip, Hot-Rolled, Carbon, Structural, High-Strength Low-Alloy and High-Strength Low-Alloy with Improved Formability. * This product falls under the **Commercial Steel (CS)** Type A or B and meets the requirements for **Grade 30**. --- ### **3. Chemical Composition (Typical, % by Weight)** Grade 30 is a non-alloy carbon steel with a simple, cost-effective composition. Chemistry is typically reported as a maximum unless noted as a range. | Element | Content (Maximum, unless specified) | Note | | :--- | :--- | :--- | | **Carbon (C)** | 0.08% - 0.20% (Typical range for CS) | Provides base strength. Lower end promotes better weldability and formability. | | **Manganese (Mn)** | 0.60% - 0.90% | Strengthens and aids hot-rolling. | | **Phosphorus (P)** | 0.035% max | Residual element, kept low for ductility and weldability. | | **Sulfur (S)** | 0.035% max | Residual element, kept low to minimize hot shortness and improve weldability. | | **Silicon (Si)** | 0.10% - 0.30% | Used as a deoxidizer (killed or semi-killed steel). | | **Copper (Cu)** | 0.20% min (when required) | Optional for atmospheric corrosion resistance (when specified per ASTM A1011). | **Note:** The specific chemistry can vary based on the melting practice (e.g., fully killed vs. semi-killed) and the specific **Type (CS Type A or B)** ordered, which governs permissible chemistry ranges and deoxidation practices. --- ### **4. Physical & Mechanical Properties** Properties are specified for the as-rolled condition (unless annealed). The steel exhibits an isotropic microstructure (no directional grain refinement). | Property | Minimum Requirement (ASTM A1011) | Typical Value / Description | | :--- | :--- | :--- | | **Yield Strength (min)** | 30 ksi (205 MPa) | | | **Tensile Strength** | 49 ksi min (340 MPa) | Typically ranges from 49 - 65 ksi (340 - 450 MPa). | | **Elongation in 2" (min)** | 23% (for thickness ≥ 0.23 in.) | Good ductility for bending and moderate forming. | | **Modulus of Elasticity** | 29,000 ksi (200 GPa) | Standard for carbon steel. | | **Density** | 0.284 lb/in³ (7.85 g/cm³) | | | **Poisson's Ratio** | 0.29 | | | **Surface Finish** | Standard hot-rolled mill finish with visible scale. | Surface scale must be removed (e.g., by pickling or abrasive blasting) prior to painting or welding for critical applications. | --- ### **5. Key Features & Advantages** * **Cost-Effective:** One of the most economical hot-rolled steel grades available. * **Good Formability & Weldability:** The low carbon content allows for easy bending, rolling, and welding using all common methods (SMAW, GMAW, GTAW, SAW). * **Excellent Machinability:** Readily machinable in the as-rolled condition. * **Wide Availability:** Readily available in a vast range of thicknesses, widths, and coil weights. * **Versatile Base Material:** Serves as an excellent substrate for further processing like galvanizing, painting, or fabrication. --- ### **6. Product Applications** ASTM A1011 Grade 30 is ubiquitous in general manufacturing, construction, and industrial sectors. * **Structural Framing:** Base plates, brackets, gussets, and light structural members in buildings and equipment. * **General Fabrication:** Truck frames, trailer components, agricultural equipment chassis, machinery guards, and frames. * **Storage & Material Handling:** Shelving units, pallet racks (non-load-critical components), dump truck beds, and hoppers. * **Pipe & Tube Manufacturing:** Used as a starting material for the production of welded pipe and structural tubing. * **Base Metal for Further Processing:** A prime candidate for subsequent hot-dip galvanizing (ASTM A653) or pickling and oiling (P&O) for improved surface finish. --- ### **7. Fabrication Notes** * **Surface Scale:** The hot-rolled mill scale must be removed prior to most finishing operations. Methods include pickling, abrasive blasting, or grinding. * **Forming:** Performs well in cold bending and roll-forming operations. A bend radius equal to the material thickness is typically achievable. * **Welding:** Highly weldable. No preheat is required for most thicknesses. Standard filler metals (e.g., E70S-6 for GMAW) are suitable. * **Machining:** Produces discontinuous chips. Tool life and surface finish are good with proper speeds and feeds. --- **Disclaimer:** The information provided is a general guide. **AK Steel** is now part of **Cleveland-Cliffs Inc.** For critical design and fabrication, always consult the latest official **ASTM A1011** standard specification and the relevant Material Test Report (MTR) or Technical Data Sheet (TDS) from the producer for the exact chemistry, mechanical properties, and recommended processing guidelines for your specific order. -:- For detailed product information, please contact sales. -: AK Steel ASTM A 1011, Grade 30 Hot Rolled Carbon Steel, Structural Steel (SS) Specification Dimensions Size： Diameter 20-1000 mm Length <4581 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. -: AK Steel ASTM A 1011, Grade 30 Hot Rolled Carbon Steel, Structural Steel (SS) Properties -:- For detailed product information, please contact sales. -:

Applications of AK Steel Tube ASTM A 1011, Grade 30 Hot Rolled Carbon Steel Tube, Structural Steel Tube (SS) -:- For detailed product information, please contact sales. -: Chemical Identifiers AK Steel Tube ASTM A 1011, Grade 30 Hot Rolled Carbon Steel Tube, Structural Steel Tube (SS) -:- For detailed product information, please contact sales. -:

Packing of AK Steel Tube ASTM A 1011, Grade 30 Hot Rolled Carbon Steel Tube, Structural Steel Tube (SS) -:- 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 Tube 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 1052 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