ASTM A135 Steel Wire, grade B

ASTM A135 Steel Wire, grade B Product Information -:- For detailed product information, please contact sales. -: ASTM A135 Steel Wire, grade B Synonyms -:- For detailed product information, please contact sales. -:

ASTM A135 Steel, grade B Product Information -:- For detailed product information, please contact sales. -: ### **Technical Data Sheet: ASTM A135 / A135M Steel, Grade B** --- #### **1. Product Overview** ASTM A135 Grade B is a specification for **electric-resistance-welded (ERW) carbon steel tubes** designed for high-pressure applications and structural uses requiring enhanced mechanical properties. This grade offers higher strength compared to Grade A while maintaining good weldability and formability, making it suitable for pressure piping, structural supports, and mechanical applications where increased load-bearing capacity is required. The tubes are manufactured by the ERW process and can be supplied in as-welded or cold-drawn conditions. --- #### **2. International Standards & Equivalents** | Standard Organization | Designation | |-----------------------|-------------| | **ASTM International** | **A135 / A135M Grade B** | | **API (American Petroleum Institute)** | **API 5L Grade B** (Similar) | | **ISO International Standard** | **ISO 559** (Equivalent) | | **European Norm (EN)** | **EN 10255** | | **Japanese (JIS)** | **G 3444** | | **Chinese GB** | **GB/T 3091** | --- #### **3. Chemical Composition (Weight %)** | Element | Composition (%) | |---------|-----------------| | **Carbon (C)** | 0.30 max | | **Manganese (Mn)** | 0.29-0.82 | | **Phosphorus (P)** | 0.035 max | | **Sulfur (S)** | 0.035 max | | **Copper (Cu)** | 0.20 min (when required) | | **Iron (Fe)** | Balance | **Key Composition Features:** - **Higher Carbon Content**: Provides increased strength compared to Grade A - **Extended Manganese Range**: Enhances strength and hardenability - **Low Sulfur and Phosphorus**: Maintains good ductility and weldability - **Optional Copper Addition**: Improves atmospheric corrosion resistance --- #### **4. Mechanical Properties** **Tensile Properties:** - **Tensile Strength**: 414 MPa (60 ksi) min - **Yield Strength**: 241 MPa (35 ksi) min - **Elongation in 50 mm (2 in)**: - 30% min (as-welded) - 20% min (cold-drawn) **Hardness Properties:** - **Maximum Hardness**: 79 HRB typical - **Brinell Hardness**: 143 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** | 51.5 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** **High-Pressure Applications:** - Medium-pressure steam and water lines - Oil and gas transmission lines - Hydraulic systems at higher pressures - Compressed air systems - Process piping for industrial plants **Structural Applications:** - Heavy-duty structural supports - Construction framework - Load-bearing structural members - Mechanical equipment frames - Architectural applications requiring higher strength **Industrial Applications:** - Boiler tubes and heat exchangers - Machinery and equipment components - Automotive structural parts - Conveyor system components - Agricultural equipment requiring higher strength --- #### **7. Manufacturing & Fabrication** **Manufacturing Process:** - **Electric Resistance Welding (ERW)** - Continuous forming and welding - Available in as-welded or cold-drawn conditions - Sizes range from 1/8" to 26" nominal diameter **Welding Characteristics:** - Good weldability using standard processes - SMAW, GMAW, GTAW suitable - Pre-heat may be required for thicker sections - Post-weld heat treatment optional for critical applications **Forming & Machining:** - Good cold forming properties - Adequate bendability with proper bending radius - Good machinability with carbide tooling - Suitable for threading and grooving operations --- #### **8. Quality Assurance & Testing** **Mandatory Tests (per ASTM A135):** - Transverse tension test - Flattening test - Reverse flattening test (for sizes ≤ 4½" NPS) - Hydrostatic test or non-destructive electric test **Additional Tests (when specified):** - Bend test - Chemical analysis - Charpy impact test - Hardness test --- #### **9. Corrosion Performance** - **Atmospheric Corrosion**: Moderate resistance, better with copper addition - **Water Corrosion**: Similar to Grade A, coatings recommended - **Chemical Resistance**: Suitable for mild chemical environments - **Protection Methods**: Galvanizing, epoxy coating, or cathodic protection --- #### **10. Available Product Forms** **Size Range:** - **Nominal Diameter**: 1/8" to 26" NPS - **Wall Thickness**: Schedule 10 to Schedule 160 - **Lengths**: Random (16-22 ft) or cut to length **Surface Conditions:** - Black (as-welded) - Galvanized - Painted or coated --- #### **11. Technical Specifications** **Dimensional Standards:** - **Outside Diameter Tolerance**: ±0.79 mm (±0.031 in) - **Wall Thickness Tolerance**: ±12.5% - **Length Tolerance**: +3 mm (+1/8 in), -0 mm **Pressure Ratings:** - **Maximum Working Pressure**: Higher than Grade A due to increased strength - **Design Factor**: Typically 0.72 for pressure applications - **Temperature Range**: -29°C to 427°C (-20°F to 800°F) --- **Technical Notes:** - Grade B provides approximately 17% higher tensile strength than Grade A - Suitable for service temperatures from -29°C to 427°C (-20°F to 800°F) - ERW process ensures consistent quality and dimensional accuracy - Must comply with applicable pressure vessel and piping codes - Regular inspection and maintenance recommended for high-pressure applications *This information is for reference purposes. For complete requirements and current specifications, consult the latest ASTM A135/A135M standard and applicable codes (ASME B31.1, B31.3, etc.). Always verify material properties with certified mill test reports before installation.* -:- For detailed product information, please contact sales. -: ASTM A135 Steel, grade B Specification Dimensions Size： Diameter 20-1000 mm Length <4229 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 A135 Steel, grade B Properties -:- For detailed product information, please contact sales. -:

Applications of ASTM A135 Steel Wire, grade B -:- For detailed product information, please contact sales. -: Chemical Identifiers ASTM A135 Steel Wire, grade B -:- For detailed product information, please contact sales. -:

Packing of ASTM A135 Steel Wire, grade B -:- 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 Wire 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 700 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