ASTM A202 Low Alloy Steel Powder, Grade A

ASTM A202 Low Alloy Steel Powder, Grade A Product Information -:- For detailed product information, please contact sales. -: ASTM A202 Low Alloy Steel Powder, Grade A Synonyms -:- For detailed product information, please contact sales. -: -:- For detailed product information, please contact sales. -: ASTM A202 Low Alloy Steel Powder, Grade A characteristics -:- For detailed product information, please contact sales. -: ASTM A202 Low Alloy Steel Powder, Grade A Particle Size -:- For detailed product information, please contact sales. -: -:- -:- 0-15μm ,5-25μm, 15-45μm, 15-53μm,20-63um, 45-75μm, 45-105μm, 45-150μm ,75-150μm. (Various granularities can be customized according to customer requirements) -:- For detailed product information, please contact sales. -:

ASTM A202 Low Alloy Steel Powder, Grade A Applicable processes -:- For detailed product information, please contact sales. -: Laser/electron beam additive manufacturing (SLM/EBM, 3D printing) Direct laser deposition (DLD) Used in thermal spray (TSA) Powder hot isostatic pressing (HIP) Metal injection molding (MIM) Powder metallurgy (PM) Laser cladding (LC), etc. -:- For detailed product information, please contact sales. -: ASTM A202 Low Alloy Steel Powder, Grade A Chemical Composition -:- For detailed product information, please contact sales. -: -:- For detailed product information, please contact sales. -: ASTM A202 Low Alloy Steel, Grade A Product Information -:- For detailed product information, please contact sales. -: ### **Product Introduction: ASTM A202 Grade A Steel** **ASTM A202 Grade A** is a chromium-manganese-silicon low-alloy steel plate specifically designed for pressure vessel applications requiring improved mechanical properties at elevated temperatures. This grade offers enhanced strength and corrosion resistance compared to carbon steels, making it suitable for moderate temperature pressure-containing components in various industrial applications. --- #### **1. International Standards & Grades** **Primary Standard:** **ASTM A202/A202M** - "Standard Specification for Pressure Vessel Plates, Alloy Steel, Chromium-Manganese-Silicon" **Grade Classification:** - **Grade A** - Standard chromium-manganese-silicon alloy steel - **Grade B** - Higher strength variant **International Equivalents:** - **EN 10028-2**: 13CrMo4-5 - **JIS G3109**: SCMV 3 - **GB/T 3077**: 15CrMo - **ISO 9328-2**: 13CrMo4-5 --- #### **2. Chemical Composition** The chemical composition requirements for ASTM A202 Grade A: | Element | Composition (Maximum %) | |---|---| | Carbon (C) | 0.20 | | Manganese (Mn) | 0.90-1.35 | | Phosphorus (P) | 0.035 | | Sulfur (S) | 0.040 | | Silicon (Si) | 0.50-0.80 | | Chromium (Cr) | 0.45-0.75 | **Key Composition Features:** - **Chromium Addition**: Provides oxidation resistance and strength - **Enhanced Silicon**: Improves strength and high-temperature stability - **Manganese Control**: Balances strength and toughness - **Low Alloy System**: Cost-effective alloy combination --- #### **3. Physical & Mechanical Properties** **Mechanical Properties (for thicknesses ≤ 50 mm):** | Property | Value | |---|---| | **Tensile Strength** | 515-655 MPa (75-95 ksi) | | **Yield Strength (min.)** | 310 MPa (45 ksi) | | **Elongation in 2" (min.)** | 19% | | **Elongation in 8" (min.)** | 22% | **Elevated Temperature Properties:** - **Useful Temperature Range**: Up to 425°C (800°F) - **Creep Resistance**: Improved over carbon steels - **Oxidation Resistance**: Better than carbon steel grades **Physical Properties:** - **Density**: 7.86 g/cm³ (0.284 lb/in³) - **Modulus of Elasticity**: 200 GPa (29,000 ksi) - **Thermal Conductivity**: 48.5 W/m·K - **Coefficient of Thermal Expansion**: 11.9 × 10⁻⁶/°C - **Specific Heat Capacity**: 475 J/kg·K --- #### **4. Product Applications** **Pressure Vessel Industry:** - Boiler drums and shells - Heat exchanger shells - Process vessels - Storage tanks for elevated temperature service **Power Generation:** - Feedwater heaters - Low-pressure steam drums - Economizer sections - Power plant piping components **Chemical Processing:** - Reactor vessels - Distillation columns - Process heaters - Chemical storage vessels **Petroleum Industry:** - Refinery equipment - Oil and gas processing vessels - Pipeline pressure vessels - Separation equipment **Industrial Applications:** - Industrial boiler components - Heating system vessels - Thermal fluid containers - Process industry equipment --- #### **5. Fabrication Characteristics** **Welding Performance:** - **Good Weldability**: With proper procedure control - **Preheat Requirements**: 150-200°C (300-400°F) recommended - **Post-Weld Heat Treatment**: Stress relieving at 595-650°C (1100-1200°F) - **Recommended Processes**: SMAW, GMAW, SAW - **Filler Metals**: E8018-B2, ER80S-B2 or equivalent **Forming & Machining:** - **Moderate Formability**: Suitable for hot forming operations - **Machinability**: Fair (approximately 55% of B1112 steel) - **Cutting Methods**: Plasma, oxy-fuel, and mechanical cutting - **Heat Treatment Response**: Good response to normalizing and tempering **Heat Treatment:** - Typically supplied in normalized and tempered condition - Normalizing temperature: 900-925°C (1650-1700°F) - Tempering temperature: 650-700°C (1200-1300°F) **Quality Assurance:** - **Mandatory Testing**: Tensile and chemical analysis - **Impact Testing**: When specified by purchaser - **Non-Destructive Testing**: As required by application - **Certification**: Full mill certification provided --- ### **Technical Summary** ASTM A202 Grade A represents an economical low-alloy steel solution for pressure vessel applications requiring improved performance at moderate elevated temperatures. The chromium-manganese-silicon alloy system provides enhanced strength and oxidation resistance compared to carbon steels, while maintaining reasonable cost and good fabrication characteristics. This grade is particularly valuable for applications operating in the temperature range where carbon steels begin to lose significant strength but where the premium cost of higher alloy steels cannot be justified. The material's balanced combination of strength, toughness, and elevated temperature performance makes it suitable for a wide range of pressure vessel applications in power generation, chemical processing, and industrial heating systems. The good weldability and formability characteristics, combined with the material's response to standard heat treatments, make ASTM A202 Grade A a versatile choice for fabricators. While requiring more careful welding procedures than carbon steels, it remains within the capabilities of most pressure vessel fabrication shops with proper procedure qualification and quality control measures. The proven service history of ASTM A202 Grade A in moderate temperature pressure vessel applications has established it as a reliable and cost-effective material choice for engineers designing equipment for continuous service at elevated temperatures up to 425°C (800°F). -:- For detailed product information, please contact sales. -: ASTM A202 Low Alloy Steel, Grade A Specification Dimensions Size： Diameter 20-1000 mm Length <4329 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 A202 Low Alloy Steel, Grade A Properties -:- For detailed product information, please contact sales. -:

ASTM A202 Low Alloy Steel Powder, Grade A Particle Size Description -:- For detailed product information, please contact sales. -: Applications of ASTM A202 Low Alloy Steel Powder, Grade A -:- For detailed product information, please contact sales. -: -:- For detailed product information, please contact sales. -: Applications of ASTM A202 Low Alloy Steel Powder, Grade A -:- For detailed product information, please contact sales. -: Chemical Identifiers ASTM A202 Low Alloy Steel Powder, Grade A -:- For detailed product information, please contact sales. -:

Packing of ASTM A202 Low Alloy Steel Powder, 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 Powder 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 800 gallon liquid totes Special package is available on request. HANG JIs’ is carefully handled to minimize damage during storage and transportation and to preserve the quality of our products in their original condition