ASTM A424 Steel, type I, drawing quality

ASTM A424 Steel, type I, drawing quality Product Information -:- For detailed product information, please contact sales. -: ASTM A424 Steel, type I, drawing quality Synonyms -:- For detailed product information, please contact sales. -:

ASTM A424 Steel, type I, drawing quality Product Information -:- For detailed product information, please contact sales. -: ### **Technical Data Sheet: ASTM A424 Steel, Type I (Drawing Quality)** --- #### **1. Product Overview** ASTM A424 Type I, Drawing Quality is a **high-formability terne-coated steel sheet** specifically engineered for severe drawing and stamping operations. This premium quality material features a lead-tin alloy coating applied to a specially formulated drawing-quality steel base, providing exceptional ductility, consistent mechanical properties, and superior coating adhesion during deep drawing processes. It is designed for manufacturing complex components requiring extensive deformation without coating damage or base metal failure. --- #### **2. International Standards & Equivalents** | Standard Organization | Designation | |-----------------------|-------------| | **ASTM International** | **A424 Type I (Drawing Quality)** | | **UNS Number** | **K02602** | | **ISO International Standard** | **ISO 4999 (DQ/DDQ)** | | **European Norm (EN)** | **EN 10205 (DD/EDDQ)** | | **Japanese (JIS)** | **G3313 (SPCE)** | | **German (DIN)** | **DIN 1624 (DC04/DC05)** | --- #### **3. Chemical Composition (Weight %)** **Base Steel Composition (Drawing Quality):** | Element | Composition (%) | |---------|-----------------| | **Carbon (C)** | 0.08 max | | **Manganese (Mn)** | 0.40 max | | **Phosphorus (P)** | 0.020 max | | **Sulfur (S)** | 0.025 max | | **Silicon (Si)** | 0.03 max | | **Aluminum (Al)** | 0.02-0.07 | | **Iron (Fe)** | Balance | **Terne Coating Composition:** | Element | Composition (%) | |---------|-----------------| | **Lead (Pb)** | 75-85% | | **Tin (Sn)** | 15-25% | | **Other Elements** | 0.30 max | **Key Composition Features:** - **Ultra-Low Carbon**: Maximum 0.08% for superior formability - **Strict Phosphorus Control**: ≤0.020% for enhanced ductility - **Aluminum Killing**: Ensures fine grain structure and non-aging properties - **Higher Tin Content**: 15-25% for improved coating performance in severe forming --- #### **4. Mechanical Properties** **Base Metal Properties (Drawing Quality):** - **Tensile Strength**: 270-350 MPa (39,000-51,000 psi) - **Yield Strength**: 140-210 MPa (20,000-30,000 psi) - **Elongation in 50 mm (2 in)**: 32% min - **Plastic Strain Ratio (r-value)**: 1.4 min - **Strain Hardening Exponent (n-value)**: 0.18 min - **Hardness**: 45-60 HRB **Coating & Forming Properties:** - **Coating Adhesion**: Excellent - withstands severe drawing without flaking - **Coating Uniformity**: Consistent across entire surface - **Surface Quality**: Superior finish for critical applications --- #### **5. Physical Properties** | Property | Value | |----------|-------| | **Density (Base Steel)** | 7.85 g/cm³ | | **Density (Terne Coating)** | 9.50-10.20 g/cm³ | | **Melting Point (Coating)** | 183-327°C (361-621°F) | | **Thermal Conductivity** | 49.0 W/m·K | | **Coefficient of Thermal Expansion** | 11.8 × 10⁻⁶ /K | | **Electrical Conductivity** | 13-16% IACS | | **Grain Size** | ASTM 7-9 | --- #### **6. Product Applications** **Deep Drawing Applications:** - **Automotive**: Complex fuel tanks, intricate fuel system components, oil pump housings - **Industrial**: Deep-drawn containers, precision instrument housings - **Consumer Products**: Elaborate gasoline cans, complex lubricant containers **Severe Forming Applications:** - Multi-stage drawn components - Parts requiring extensive metal flow - Components with sharp radii and complex geometries - Applications demanding maintained coating integrity after forming --- #### **7. Manufacturing & Fabrication** **Forming Characteristics (Drawing Quality):** - **Excellent Deep Drawability**: Suitable for most severe drawing operations - **Minimum Bend Radius**: 0.3 × thickness - **Coating Adhesion**: Maintains integrity in severe deformation - **Springback**: Minimal and predictable **Tooling & Lubrication:** - **Tooling Requirements**: Premium tool steels recommended - **Lubrication**: Compatible with drawing compounds and oils - **Die Clearances**: Standard drawing practice applicable **Joining Methods:** - **Excellent Solderability**: Superior wetting characteristics - **Resistance Welding**: Excellent performance with proper parameters - **Seam Welding**: Suitable for leak-tight joints --- #### **8. Quality Assurance & Testing** **Drawing Quality Tests:** - **Ericsson Cupping Test**: 9.5 mm min - **Olsen Ductility Test**: 10.0 mm min - **Rockwell Hardness Test**: Verified for consistency - **Coating Adhesion Test**: Severe deformation testing **Advanced Testing:** - Plastic strain ratio (r-value) determination - Strain hardening exponent (n-value) measurement - Grain size analysis - Surface roughness measurement --- #### **9. Corrosion Performance** - **Atmospheric Corrosion**: Excellent resistance - **Fuel Resistance**: Superior performance with automotive fuels - **Formed Part Protection**: Maintains corrosion resistance after severe forming - **Long-term Performance**: Proven durability in automotive applications --- #### **10. Available Product Forms** **Premium Dimensions:** - **Thickness Range**: 0.50 mm to 1.50 mm (0.020" to 0.060") - **Width Range**: 600 mm to 1300 mm (24" to 51") - **Length Range**: Coils or precision cut lengths **Surface Conditions:** - Premium terne coating finish - Consistent coating appearance - Superior surface quality for critical applications --- #### **11. Technical Specifications** **Premium Coating Requirements:** - **Coating Weight**: 40-100 g/m² total both sides - **Coating Uniformity**: Minimum 95% coverage - **Surface Quality**: Superior finish free from defects **Dimensional Tolerances (Drawing Quality):** - **Thickness Tolerance**: ±0.04 mm - **Width Tolerance**: +2 mm, -0 mm - **Length Tolerance**: +3 mm, -0 mm - **Flatness**: 5 mm/m maximum --- **Technical Notes:** - Specifically designed for severe drawing and stamping operations - Non-aging characteristics ensure consistent performance over time - Superior r-value and n-value for exceptional formability - Suitable for manufacturing complex, deep-drawn components - Compliance with automotive industry standards for fuel system applications *This information is for reference purposes. For complete drawing quality specifications and severe forming applications, consult the latest ASTM A424 standard and applicable automotive industry specifications. Pre-production testing recommended for critical deep drawing applications.* -:- For detailed product information, please contact sales. -: ASTM A424 Steel, type I, drawing quality Specification Dimensions Size： Diameter 20-1000 mm Length <4246 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 A424 Steel, type I, drawing quality Properties -:- For detailed product information, please contact sales. -:

Applications of ASTM A424 Steel, type I, drawing quality -:- For detailed product information, please contact sales. -: Chemical Identifiers ASTM A424 Steel, type I, drawing quality -:- For detailed product information, please contact sales. -:

Packing of ASTM A424 Steel, type I, drawing quality -:- 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 717 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