ASTM A139 Steel Capillary, grade D

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

ASTM A139 Steel, grade D Product Information -:- For detailed product information, please contact sales. -: ### **Technical Data Sheet: ASTM A139 / A139M Steel, Grade D** --- #### **1. Product Overview** ASTM A139 Grade D is a high-strength specification for **electric-fusion-welded (EFW) steel pipe** designed for extreme pressure applications and demanding service conditions. This grade represents an advanced level in the A139 standard series, offering superior mechanical properties for critical pipeline infrastructure, high-pressure fluid transmission, and specialized industrial applications where maximum strength-to-weight ratio and reliability are paramount requirements. --- #### **2. International Standards & Equivalents** | Standard Organization | Designation | |-----------------------|-------------| | **ASTM International** | **A139 / A139M Grade D** | | **API (American Petroleum Institute)** | **API 5L Grade X52** (Equivalent) | | **ISO International Standard** | **ISO 3183 Grade L415** | | **European Norm (EN)** | **EN 10208-2 L415** | | **Canadian Standards Association** | **CSA Z245.1 Grade 415** | | **German (DIN)** | **DIN 17100 St52-3** | --- #### **3. Chemical Composition (Weight %)** | Element | Composition (%) | |---------|-----------------| | **Carbon (C)** | 0.28 max | | **Manganese (Mn)** | 1.30 max | | **Phosphorus (P)** | 0.030 max | | **Sulfur (S)** | 0.030 max | | **Silicon (Si)** | 0.10-0.40 | | **Copper (Cu)** | 0.25 max | | **Nickel (Ni)** | 0.25 max | | **Chromium (Cr)** | 0.25 max | | **Molybdenum (Mo)** | 0.08 max | | **Vanadium (V)** | 0.05 max | | **Niobium (Nb)** | 0.05 max | | **Iron (Fe)** | Balance | **Key Composition Features:** - **Optimized Carbon Content**: Balanced for strength and weldability - **Enhanced Manganese**: Up to 1.30% for improved strength-toughness balance - **Microalloying Elements**: Vanadium and Niobium for grain refinement - **Strict Impurity Control**: Lower phosphorus and sulfur limits - **Optional Alloys**: Multiple alloying elements for property enhancement --- #### **4. Mechanical Properties** **Tensile Properties:** - **Tensile Strength**: 552 MPa (80,000 psi) min - **Yield Strength**: 359 MPa (52,000 psi) min - **Elongation in 50 mm (2 in)**: - 25% min (longitudinal strip test) - 16% min (transverse strip test) **Hardness Properties:** - **Maximum Hardness**: 92 HRB typical - **Brinell Hardness**: 170 HBW max - **Vickers Hardness**: 180 HV 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** | 49.5 W/m·K at 20°C | | **Coefficient of Thermal Expansion** | 11.5 × 10⁻⁶ /K (20-100°C) | | **Specific Heat Capacity** | 460 J/kg·K | | **Electrical Resistivity** | 0.19 μΩ·m | --- #### **6. Product Applications** **High-Pressure Energy Transmission:** - High-pressure natural gas transmission lines - Crude oil transmission pipelines - Refined products pipelines - High-pressure water injection lines - Carbon dioxide transmission pipelines **Critical Infrastructure:** - Large-diameter water transmission mains - High-head hydroelectric penstocks - Municipal high-pressure water systems - Industrial plant high-pressure utilities - Mining high-pressure slurry lines **Specialized Applications:** - Offshore pipeline systems - Mountain crossing pipelines - River and water crossing pipelines - Seismic zone pipelines - High-temperature service pipelines --- #### **7. Manufacturing & Fabrication** **Manufacturing Process:** - **Electric Fusion Welding (EFW)** - Advanced welding with quality filler metals - Sizes from 4 inches (101.6 mm) to 144 inches (3658 mm) - Enhanced quality control throughout manufacturing **Welding Characteristics:** - Good weldability with proper procedure qualification - Pre-heat required for most applications - Suitable for automated welding processes - Post-weld heat treatment often specified **Forming & Machining:** - Controlled forming characteristics - Requires proper bending equipment and procedures - Good machinability with carbide tooling - Suitable for various connection methods --- #### **8. Quality Assurance & Testing** **Mandatory Tests (per ASTM A139):** - Comprehensive tension testing - Flattening test to specified criteria - Bend test evaluation - Hydrostatic pressure test - Non-destructive electric test **Enhanced Testing Requirements:** - Full chemical analysis per heat - Charpy V-notch impact testing - Hardness traverse testing - Comprehensive dimensional verification - Weld zone macro and micro examination --- #### **9. Corrosion Performance** - **Atmospheric Corrosion**: Enhanced resistance with alloy additions - **Water Corrosion**: Suitable for aggressive water conditions - **Soil Corrosion**: Requires advanced coating systems - **Chemical Resistance**: Improved over lower grades - **Protection Methods**: Multi-layer epoxy coatings, cathodic protection --- #### **10. Available Product Forms** **Size Range:** - **Nominal Diameter**: 4 inches to 144 inches - **Wall Thickness**: Various schedules including special walls - **Lengths**: Custom lengths up to 40 feet **Enhanced Surface Conditions:** - Bare pipe with mill surface - Externally coated with fusion-bonded epoxy - Internally lined with epoxy or cement mortar - Special corrosion coatings available --- #### **11. Technical Specifications** **Dimensional Standards:** - **Outside Diameter Tolerance**: ±0.5% of nominal diameter - **Wall Thickness Tolerance**: ±8.5% - **Length Tolerance**: +100 mm (+4 in), -0 mm - **Straightness Tolerance**: 0.06% of length **Performance Ratings:** - **Maximum Working Pressure**: Highest in A139 standard series - **Design Factor**: 0.72 for most pipeline applications - **Temperature Range**: -29°C to 427°C (-20°F to 800°F) - **Hydrostatic Test Pressure**: Minimum 2.5 times design pressure --- **Technical Notes:** - Grade D provides approximately 67% higher tensile strength than Grade A - Enhanced toughness properties for demanding applications - Suitable for wide temperature range service - Advanced EFW manufacturing ensures high quality - Must comply with strict pipeline safety codes - Regular monitoring and maintenance essential *This information is for reference purposes. For complete technical requirements, consult the latest ASTM A139/A139M standard and applicable pipeline safety codes. Always verify material properties with certified mill test reports and ensure proper installation qualification.* -:- For detailed product information, please contact sales. -: ASTM A139 Steel, grade D Specification Dimensions Size： Diameter 20-1000 mm Length <4233 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 D Properties -:- For detailed product information, please contact sales. -:

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

Packing of ASTM A139 Steel Capillary, grade D -:- 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 Capillary 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 704 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