ASTM A109 Carbon Steel Foil/Strip, Tempers 1, 2, or 3

ASTM A109 Carbon Steel Foil, Tempers 1, 2, or 3, Composition Spec Product Information -:- For detailed product information, please contact sales. -: ASTM A109 Carbon Steel Foil, Tempers 1, 2, or 3, Composition Spec Synonyms -:- For detailed product information, please contact sales. -:

ASTM A109 Carbon Steel, Tempers 1, 2, or 3, Composition Spec Product Information -:- For detailed product information, please contact sales. -: ### **Product Introduction: ASTM A109 Carbon Steel, Tempers 1, 2, or 3** **ASTM A109** covers cold-rolled carbon steel strip in **Tempers 1, 2, or 3** with specified chemical compositions. This specification applies to steel strip produced with precise chemical control, where mechanical properties are primarily determined by the chemical composition and subsequent processing rather than specific mechanical requirements. These tempers represent varying degrees of formability and strength characteristics for different application needs. --- #### **1. International Standards & Classification** **Primary Standard:** **ASTM A109/A109M** - "Standard Specification for Steel, Strip, Carbon, Cold-Rolled" **Temper Classification:** - **Temper 1** - Soft, suitable for severe forming - **Temper 2** - Medium, for moderate forming - **Temper 3** - Hard, for limited forming or spring applications **International Equivalents:** - **EN 10139**: DC01, DC03, DC04 - **JIS G3141**: SPCC, SPCD, SPCE - **GB/T 5213**: DC01, DC03, DC04 - **ISO 3574**: CR1, CR2, CR3 --- #### **2. Chemical Composition Specifications** **Standard Composition Ranges (Maximum %):** | Element | Temper 1 | Temper 2 | Temper 3 | |---|---|---|---| | Carbon (C) | 0.10-0.15 | 0.08-0.13 | 0.06-0.10 | | Manganese (Mn) | 0.30-0.50 | 0.25-0.45 | 0.20-0.40 | | Phosphorus (P) | 0.030 | 0.025 | 0.020 | | Sulfur (S) | 0.030 | 0.025 | 0.020 | | Silicon (Si) | 0.10 | 0.08 | 0.05 | **Key Composition Features:** - **Progressive Carbon Reduction**: Lower carbon for improved formability in higher tempers - **Tightening Impurity Control**: Reduced phosphorus and sulfur in higher tempers - **Manganese Optimization**: Balanced for strength and formability - **Silicon Restrictions**: Minimal silicon for surface quality --- #### **3. Physical & Mechanical Properties** **Typical Mechanical Properties:** | Property | Temper 1 | Temper 2 | Temper 3 | |---|---|---|---| | **Tensile Strength (MPa)** | 280-380 | 340-440 | 400-500 | | **Yield Strength (MPa)** | 170-240 | 210-310 | 280-380 | | **Elongation in 2" (%)** | 28-35 | 22-30 | 15-25 | | **Hardness (HRB)** | 45-60 | 55-70 | 65-80 | **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**: 52.0 W/m·K - **Coefficient of Thermal Expansion**: 11.5 × 10⁻⁶/°C --- #### **4. Product Applications** **Temper 1 Applications:** - Deep drawn components - Complex stamped parts - Automotive body panels - Electrical enclosure parts **Temper 2 Applications:** - Moderate formed brackets - Appliance components - Furniture parts - General hardware **Temper 3 Applications:** - Spring clips and retainers - Structural supports - Fastener components - Limited formed parts **Industry Applications:** - **Automotive**: Seat components, brackets, reinforcements - **Electronics**: Chassis parts, shielding components - **Construction**: HVAC components, building hardware - **Consumer Goods**: Appliance parts, tool components --- #### **5. Fabrication Characteristics** **Forming Performance:** - **Temper 1**: Excellent for deep drawing and severe forming - **Temper 2**: Good for moderate bending and forming - **Temper 3**: Suitable for simple bending and limited forming **Welding Characteristics:** - **Excellent Weldability**: All tempers suitable for welding - **Recommended Processes**: Resistance welding, GMAW, GTAW - **No Preheat Required**: For all thicknesses and tempers **Machining & Cutting:** - **Good Machinability**: Improves with higher temper levels - **Shearing Quality**: Excellent with proper tooling - **Surface Finish**: Superior for painting and plating **Heat Treatment Response:** - **Temper 1**: Responsive to annealing and stress relieving - **Temper 2**: Moderate response to heat treatment - **Temper 3**: Limited further hardening capability --- ### **Technical Summary** ASTM A109 carbon steel strip in Tempers 1, 2, or 3 with specified chemical compositions provides manufacturers with precisely controlled materials for a wide range of forming applications. The progressive temper designations offer a systematic approach to selecting the optimal balance of strength and formability for specific manufacturing requirements. The chemical composition specifications ensure consistent performance and predictable behavior during fabrication processes. Temper 1's higher carbon content provides the strength needed for certain applications while maintaining good formability, while the progressively cleaner steels in Tempers 2 and 3 offer improved formability characteristics for more demanding forming operations. This specification's focus on chemical control rather than mechanical property requirements gives manufacturers flexibility in material selection while ensuring consistent quality and performance. The excellent surface quality, consistent mechanical properties, and reliable fabrication characteristics make these tempers ideal for high-volume production applications across multiple industries where repeatable performance and manufacturing efficiency are critical requirements. -:- For detailed product information, please contact sales. -: ASTM A109 Carbon Steel, Tempers 1, 2, or 3, Composition Spec Specification Dimensions Size： Diameter 20-1000 mm Length <4323 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 A109 Carbon Steel, Tempers 1, 2, or 3, Composition Spec Properties -:- For detailed product information, please contact sales. -:

Applications of ASTM A109 Carbon Steel Foil, Tempers 1, 2, or 3, Composition Spec -:- For detailed product information, please contact sales. -: Chemical Identifiers ASTM A109 Carbon Steel Foil, Tempers 1, 2, or 3, Composition Spec -:- For detailed product information, please contact sales. -:

Packing of ASTM A109 Carbon Steel Foil/Strip, Tempers 1, 2, or 3, Composition Spec -:- 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 794 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