ASTM A611 Steel Foil/Strip, grade C

ASTM A611 Steel Foil, grade C Product Information -:- For detailed product information, please contact sales. -: ASTM A611 Steel Foil, grade C Synonyms -:- For detailed product information, please contact sales. -:

ASTM A611 Steel, grade C Product Information -:- For detailed product information, please contact sales. -: ### **Product Introduction: ASTM A611 Grade C Steel** **ASTM A611 Grade C** is a high-strength cold-rolled carbon steel sheet classified under the specification for structural quality steel. This grade offers significantly enhanced strength characteristics while maintaining adequate formability for manufacturing operations. With a minimum yield strength of **33 ksi (230 MPa)**, Grade C bridges the gap between conventional mild steels and high-strength alloys, providing an economical solution for applications requiring improved mechanical performance. --- #### **1. International Standards & Grades** **Primary Standard:** **ASTM A611/A611M** - "Standard Specification for Structural Quality Cold-Rolled Carbon Steel Sheet" **Grade Classification:** - **Grade C** - Minimum yield strength 33 ksi (230 MPa) - Other grades in A611 series: A, B, D **International Equivalents:** - **EN 10130**: DC05 - **JIS G3141**: SPCE - **GB/T 5213**: DC06 - **ISO 3574**: CR4 --- #### **2. Chemical Composition** The typical chemical composition requirements for ASTM A611 Grade C: | Element | Composition (Maximum %) | |---|---| | Carbon (C) | 0.15-0.20 | | Manganese (Mn) | 0.70-1.00 | | Phosphorus (P) | 0.03 | | Sulfur (S) | 0.035 | | Silicon (Si) | 0.15 | **Key Composition Features:** - **Higher Carbon Content**: Provides increased strength and hardness - **Elevated Manganese**: Enhances hardenability and strength - **Controlled Phosphorus**: Maintains weldability and formability - **Optimized Chemistry**: Balanced for strength and manufacturing flexibility --- #### **3. Physical & Mechanical Properties** **Mechanical Properties:** | Property | Value | |---|---| | **Tensile Strength** | 380-480 MPa (55-70 ksi) | | **Yield Strength (min.)** | 230 MPa (33 ksi) | | **Elongation in 2" (min.)** | 20% | | **Hardness (HRB)** | 60-75 | **Physical Properties:** - **Density**: 7.85 g/cm³ (0.284 lb/in³) - **Modulus of Elasticity**: 200 GPa (29,000 ksi) - **Poisson's Ratio**: 0.29 - **Thermal Conductivity**: 50.2 W/m·K - **Coefficient of Thermal Expansion**: 11.8 × 10⁻⁶/°C - **Electrical Resistivity**: 0.19 μΩ·m --- #### **4. Product Applications** **Automotive Structural Components:** - Seat frame reinforcements - Door intrusion beams - Chassis reinforcement members - Safety component brackets **Construction and Building:** - Structural framing components - Roof support members - Wall stud reinforcements - Building hardware fixtures **Industrial Machinery:** - Equipment frame components - Machine guard supports - Conveyor structural parts - Industrial cabinet frames **Transportation Equipment:** - Truck body components - Trailer structural members - Bus frame reinforcements - Railway interior structures **Heavy-Duty Products:** - Storage rack components - Material handling equipment - Industrial shelving systems - Heavy-duty furniture frames --- #### **5. Fabrication Characteristics** **Welding Performance:** - **Good Weldability with Care**: Requires proper parameter control - **Preheat Recommendation**: Suggested for thicknesses above 3 mm - **Recommended Processes**: GMAW, Resistance welding, GTAW - **Filler Metals**: ER70S-6 or equivalent **Forming Characteristics:** - **Moderate Formability**: Suitable for bending and moderate drawing - **Minimum Bend Radius**: 1.0t for 90° bends - **Springback**: Requires compensation in tooling design - **Surface Integrity**: Maintains quality under forming stresses **Machining & Cutting:** - **Fair Machinability**: Requires appropriate tool geometry - **Shearing Performance**: Good with maintained tooling - **Punching Characteristics**: Adequate for most production needs - **Laser Cutting**: Produces quality edges with proper parameters **Surface Treatment:** - **Good Painting Characteristics**: Requires proper surface preparation - **Plating Compatibility**: Suitable with process adjustments - **Conversion Coatings**: Responds well to pretreatment - **Finish Quality**: Provides excellent painted appearance --- ### **Technical Summary** ASTM A611 Grade C represents a significant step up in strength within the cold-rolled structural steel category, offering manufacturers an economical high-strength alternative for demanding applications. The enhanced carbon and manganese content provide substantial strength improvement over Grades A and B while maintaining sufficient formability for most manufacturing operations. This grade is particularly valuable in applications where weight reduction and improved structural performance are key design considerations. While requiring more careful attention during forming and welding operations compared to lower grades, Grade C delivers reliable performance in finished products. Its balanced combination of strength, manufacturability, and cost-effectiveness makes it an ideal choice for automotive safety components, structural building elements, and industrial equipment where enhanced mechanical properties are essential. The material's consistent quality and predictable behavior ensure reliable performance in demanding applications across multiple industries. -:- For detailed product information, please contact sales. -: ASTM A611 Steel, grade C Specification Dimensions Size： Diameter 20-1000 mm Length <4303 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 A611 Steel, grade C Properties -:- For detailed product information, please contact sales. -:

Applications of ASTM A611 Steel Foil, grade C -:- For detailed product information, please contact sales. -: Chemical Identifiers ASTM A611 Steel Foil, grade C -:- For detailed product information, please contact sales. -:

Packing of ASTM A611 Steel Foil/Strip, grade C -:- 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 Foil/Strip 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 774 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