ASTM A515 Carbon Steel, Grade 55

ASTM A515 Carbon Steel, Grade 55 Product Information -:- For detailed product information, please contact sales. -: ASTM A515 Carbon Steel, Grade 55 Synonyms -:- For detailed product information, please contact sales. -:

ASTM A515 Carbon Steel, Grade 55 Product Information -:- For detailed product information, please contact sales. -: ### **Product Introduction: ASTM A515 / A515M Carbon Steel, Grade 55** #### **1. Overview** ASTM A515 Grade 55 is an intermediate tensile strength carbon-silicon steel plate specifically designed for moderate and higher temperature service in pressure vessels and other industrial equipment. This grade provides an excellent balance of strength, toughness, and weldability, making it suitable for a wide range of pressure-containing applications. #### **2. Key International Standards** - **Primary Standard:** **ASTM A515 / A515M** - Standard Specification for Pressure Vessel Plates, Carbon Steel, for Intermediate- and Higher-Temperature Service - **Governing Standard:** **ASTM A20/A20M** - Standard Specification for General Requirements for Steel Plates for Pressure Vessels - **International Equivalents:** - **EN 10028-2:** P265GH (European pressure vessel steel equivalent) - **JIS G3115:** SB410 (Japanese pressure vessel steel) - **GB 713:** Q245R (Chinese pressure vessel steel) #### **3. Chemical Composition (Weight %)** | Element | Composition (%) | |---------|-----------------| | Carbon (C), max | 0.18-0.25 (based on thickness) | | Manganese (Mn) | 0.80-1.20 | | Phosphorus (P), max | 0.035 | | Sulfur (S), max | 0.035 | | Silicon (Si) | 0.15-0.40 | *Note: The silicon content is specified for killed steel practice to ensure deoxidation and improved quality.* #### **4. Mechanical & Physical Properties** **Mechanical Properties (at room temperature):** - **Tensile Strength:** 375-515 MPa (55-75 ksi) - **Yield Strength (min):** 205 MPa (30 ksi) - **Elongation in 2" (min):** 27% - **Hardness (typical):** 130-170 HB **Elevated Temperature Properties:** - **Useful Temperature Range:** Up to 425°C (800°F) - **Creep Resistance:** Suitable for moderate elevated temperature service **Physical Properties:** - **Density:** 7.85 g/cm³ (0.284 lb/in³) - **Modulus of Elasticity:** 200 GPa (29,000 ksi) - **Thermal Conductivity:** 51.0 W/m·K (at 100°C) - **Coefficient of Thermal Expansion:** 11.5 × 10⁻⁶/K (20-100°C) #### **5. Product Applications** - **Pressure Vessels:** Boilers, storage tanks, air receivers - **Heat Exchangers:** Shells, tube sheets, and pressure chambers - **Industrial Boilers:** Boiler drums and pressure parts - **Process Equipment:** Chemical and petrochemical vessels - **Power Generation:** Low to moderate temperature pressure components #### **6. Key Characteristics & Advantages** - **Good Weldability:** Excellent welding characteristics with all standard processes - **Cost-Effective:** Economical choice for moderate service conditions - **Reliable Performance:** Proven track record in pressure vessel service - **Good Formability:** Can be readily formed and fabricated - **Consistent Quality:** Killed steel practice ensures uniform properties #### **7. Fabrication Considerations** - **Welding:** No special requirements beyond standard practices - **Forming:** Excellent cold and hot forming characteristics - **Heat Treatment:** Stress relieving recommended after severe forming - **Machining:** Good machinability in normalized condition #### **8. Quality Assurance** - **Testing:** Standard mechanical testing required - **Certification:** Mill test certificates provided - **Supplementary Tests:** Ultrasonic testing available when specified ASTM A515 Grade 55 represents a reliable and economical carbon steel solution for pressure vessel applications where moderate strength and good fabricability are required for successful performance in intermediate temperature service conditions. -:- For detailed product information, please contact sales. -: ASTM A515 Carbon Steel, Grade 55 Specification Dimensions Size： Diameter 20-1000 mm Length <4402 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 A515 Carbon Steel, Grade 55 Properties -:- For detailed product information, please contact sales. -:

Applications of ASTM A515 Carbon Steel, Grade 55 -:- For detailed product information, please contact sales. -: Chemical Identifiers ASTM A515 Carbon Steel, Grade 55 -:- For detailed product information, please contact sales. -:

Packing of ASTM A515 Carbon Steel, Grade 55 -:- 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 873 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