ASTM A139 Steel Foil/Strip, grade A

ASTM A139 Steel Foil, grade A Product Information -:- For detailed product information, please contact sales. -: ASTM A139 Steel Foil, grade A Synonyms -:- For detailed product information, please contact sales. -:

ASTM A139 Steel, grade A Product Information -:- For detailed product information, please contact sales. -: ### **Technical Data Sheet: ASTM A139 / A139M Steel, Grade A** --- #### **1. Product Overview** ASTM A139 Grade A is a specification for **electric-fusion-welded (EFW) steel pipe** intended for high-pressure pipeline applications. This grade covers steel pipe of sizes 4 inches (101.6 mm) and larger, manufactured by the electric-fusion welding process with filler metal added. Grade A provides a cost-effective solution for water and oil pipeline systems, offering good weldability and mechanical properties suitable for various pressure applications. --- #### **2. International Standards & Equivalents** | Standard Organization | Designation | |-----------------------|-------------| | **ASTM International** | **A139 / A139M Grade A** | | **API (American Petroleum Institute)** | **API 5L Grade A** (Similar) | | **ISO International Standard** | **ISO 3183** (Equivalent) | | **European Norm (EN)** | **EN 10208-1** | | **Canadian Standards Association** | **CSA Z245.1** | --- #### **3. Chemical Composition (Weight %)** | Element | Composition (%) | |---------|-----------------| | **Carbon (C)** | 0.25 max | | **Manganese (Mn)** | 0.90 max | | **Phosphorus (P)** | 0.035 max | | **Sulfur (S)** | 0.035 max | | **Copper (Cu)** | 0.20 min (when required) | | **Iron (Fe)** | Balance | **Key Composition Features:** - **Moderate Carbon Content**: Balances strength and weldability - **Controlled Manganese**: Ensures adequate strength and toughness - **Low Impurity Levels**: Phosphorus and sulfur controlled for better weld integrity - **Copper Option**: Available for enhanced atmospheric corrosion resistance --- #### **4. Mechanical Properties** **Tensile Properties:** - **Tensile Strength**: 331 MPa (48,000 psi) min - **Yield Strength**: 207 MPa (30,000 psi) min - **Elongation in 50 mm (2 in)**: - 35% min (longitudinal strip test) - 25% min (transverse strip test) **Hardness Properties:** - **Maximum Hardness**: 72 HRB typical - **Brinell Hardness**: 137 HBW max --- #### **5. Physical Properties** | Property | Value | |----------|-------| | **Density** | 7.85 g/cm³ (0.284 lb/in³) | | **Modulus of Elasticity** | 200 GPa (29,000 ksi) | | **Shear Modulus** | 77 GPa (11,200 ksi) | | **Poisson's Ratio** | 0.29 | | **Thermal Conductivity** | 52.0 W/m·K at 20°C | | **Coefficient of Thermal Expansion** | 11.7 × 10⁻⁶ /K (20-100°C) | | **Specific Heat Capacity** | 470 J/kg·K | --- #### **6. Product Applications** **Pipeline Applications:** - Water transmission lines - Oil pipeline systems - Gas distribution lines - Slurry pipelines - Industrial process piping **Infrastructure Applications:** - Municipal water systems - Irrigation projects - Fire protection systems - Drainage and sewer systems - Penstocks for hydroelectric projects **Industrial Applications:** - Plant utility piping - Cooling water systems - Compressed air lines - Structural supports and piling - Casing for underground utilities --- #### **7. Manufacturing & Fabrication** **Manufacturing Process:** - **Electric Fusion Welding (EFW)** - Continuous welding with filler metal addition - Sizes from 4 inches (101.6 mm) to 144 inches (3658 mm) diameter - Available in various wall thicknesses **Welding Characteristics:** - Excellent field weldability - Suitable for all standard welding processes - No pre-heat required for most applications - Compatible with common pipeline welding procedures **Forming & Machining:** - Good cold forming properties - Suitable for bending and field modification - Good machinability for end preparation - Can be flanged, threaded, or grooved --- #### **8. Quality Assurance & Testing** **Mandatory Tests (per ASTM A139):** - Transverse or longitudinal tension test - Flattening test - Bend test - Hydrostatic test - Non-destructive electric test **Additional Tests (when specified):** - Chemical analysis - Charpy impact test - Hardness test - Visual inspection --- #### **9. Corrosion Performance** - **Atmospheric Corrosion**: Good resistance in normal environments - **Water Service**: Suitable for fresh water applications - **Soil Corrosion**: Requires coating and cathodic protection - **Protection Methods**: External coating, internal lining, cathodic protection systems --- #### **10. Available Product Forms** **Size Range:** - **Nominal Diameter**: 4 inches to 144 inches - **Wall Thickness**: Various schedules available - **Lengths**: Single random (16-22 ft) or double random (35-40 ft) **Surface Conditions:** - Bare (as-welded) - Primed - Coated or lined - Galvanized (special order) --- #### **11. Technical Specifications** **Dimensional Standards:** - **Outside Diameter Tolerance**: ±0.5% of nominal diameter - **Wall Thickness Tolerance**: ±10% - **Length Tolerance**: +300 mm (+12 in), -0 mm **Pressure Ratings:** - **Maximum Working Pressure**: Varies with diameter and wall thickness - **Design Factor**: Typically 0.72 for pipeline applications - **Temperature Range**: -29°C to 427°C (-20°F to 800°F) --- **Technical Notes:** - Grade A is economical for general purpose pipeline applications - Suitable for service temperatures from -29°C to 427°C (-20°F to 800°F) - EFW process allows for large diameter pipe manufacturing - Must comply with applicable pipeline codes (ASME B31.4, B31.8, etc.) - Regular inspection and maintenance recommended for buried applications *This information is for reference purposes. For complete requirements and current specifications, consult the latest ASTM A139/A139M standard and applicable pipeline safety codes. Always verify material properties with certified mill test reports before installation.* -:- For detailed product information, please contact sales. -: ASTM A139 Steel, grade A Specification Dimensions Size： Diameter 20-1000 mm Length <4230 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 A139 Steel, grade A Properties -:- For detailed product information, please contact sales. -:

Applications of ASTM A139 Steel Foil, grade A -:- For detailed product information, please contact sales. -: Chemical Identifiers ASTM A139 Steel Foil, grade A -:- For detailed product information, please contact sales. -:

Packing of ASTM A139 Steel Foil/Strip, grade A -:- 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 701 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