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Have you ever wondered what makes certain materials indispensable in the world of manufacturing and construction? One such material, S235JRG2, stands out for its versatile properties and wide range of applications. From structural components to piping systems, its unique characteristics make it a go-to choice for engineers and manufacturers alike. But what exactly are the properties that define S235JRG2, and how does it compare to its equivalents? In this comprehensive guide, we will delve into the material’s specifications, explore its mechanical and chemical properties, and uncover its equivalents. Ready to discover why S235JRG2 is a cornerstone in the industry? Let’s dive in.
S235JRG2, also known as 1.0038, is a versatile low-carbon structural steel widely used in various industries due to its excellent weldability and machinability.
The chemical composition of S235JRG2 includes:
S235JRG2 exhibits mechanical properties suitable for various structural applications:
S235JRG2 adheres to the EuroNorm EN 10025-2 (2006) standard, which outlines the requirements for hot-rolled products of structural steels, ensuring consistency and quality.
S235JRG2 is typically supplied in the normalized or as-rolled condition. It can be easily welded and fabricated using standard methods, with its low carbon content ensuring good weldability without the need for preheating or post-weld heat treatment in most cases.
The steel can be supplied with various surface finishes, including hot-dip galvanized, painted, or untreated, depending on the application requirements. The choice of surface finish affects the material’s corrosion resistance and aesthetic appeal.
Thanks to its balanced properties and excellent workability, S235JRG2 is ideal for:
S235JRG2 is equivalent to several other structural steels, offering flexibility in material selection based on availability and cost. Common equivalents include:
Manufacturers and suppliers typically provide certification that S235JRG2 meets the specified standards and properties, ensuring its suitability for intended uses and compliance with relevant industry regulations.
S235JRG2 is a type of structural steel known for its balanced properties, making it ideal for various construction applications. Its chemical composition includes up to 0.17% carbon for thicknesses up to 16 mm (0.20% for over 40 mm), a maximum of 1.40% manganese, 0.045% phosphorus, 0.045% sulfur, and 0.009% nitrogen.
This steel offers a minimum yield strength of 235 MPa and a tensile strength ranging between 360 and 510 MPa for thicknesses up to 16 mm. Additionally, it has a minimum elongation at break of 26%, ensuring a good balance of strength and ductility.
S235JRG2 features an impact energy of 27 Joules at 20°C (if specified), and it is available in various surface finishes to suit different needs, including hot-dip galvanized, painted, or untreated options.
Thanks to its low carbon content, S235JRG2 is highly weldable using common methods without requiring preheating or post-weld heat treatment. It is also straightforward to machine with standard techniques, making it a versatile choice for manufacturing.
This steel is typically supplied in either a normalized or as-rolled condition, enhancing its mechanical properties and ensuring uniformity. S235JRG2 conforms to the EN 10025-2 (2006) standard, guaranteeing consistency and reliability in structural applications.
S235JRG2 is a well-known European standard structural steel, prized for its excellent weldability, machinability, and balanced mechanical properties. S235JRG2 is classified under the EN 10025-2 standard and offers a good combination of strength and ductility. This makes it ideal for various structural and engineering applications.
The designation "S235JRG2C+C" is not specifically mentioned in standard literature. However, the inclusion of "C+C" in steel designations typically indicates additional processing or specific conditions such as cold forming or specific treatments.
The closest equivalent to S235JRG2 is S235JR. This equivalence is due to the updated EN 10025-2 standards. Both materials share similar:
Chemical Composition:
Carbon (C): Max 0.17%
Manganese (Mn): Max 1.40%
Phosphorus (P): Max 0.045%
Sulfur (S): Max 0.045%
Mechanical Properties:
Yield Strength: 235 MPa (for thicknesses up to 16 mm)
Tensile Strength: 360-510 MPa
| Standard | Equivalent Material |
|---|---|
| European Standards | S235JR (1.0038) |
| US Standards | ASTM A36, ASTM A283 Grade D |
| German Standards | St 37-2, RSt 37-2, Ust 37-2 |
| Japanese Standards | SS400, SM400A |
| Chinese Standards | Q235B, Q235C |
S235JR, the equivalent of S235JRG2, maintains properties that make it suitable for similar applications. These properties include:
S235JR (and by extension S235JRG2) is extensively used in construction for general structural purposes, including:
In addition to construction, S235JRG2 carbon steel is used in various industries such as piping systems, chemical, and mechanical applications due to its resistance to corrosion and oxidation.
Understanding the equivalence of S235JRG2C+C to S235JRG2, and its closest current equivalent, S235JR, is crucial for engineers and manufacturers. This knowledge ensures the appropriate selection and application of materials in structural and engineering projects, given their shared properties and broad range of applications.
Due to its excellent weldability and balanced mechanical properties, S235JRG2 is widely used in the construction industry. It is commonly used for:
In the shipbuilding sector, S235JRG2 is valued for its toughness and ability to withstand harsh marine environments, making it ideal for applications such as:
The mechanical and hardware industries benefit from S235JRG2’s machinability and versatility. Common uses include:
S235JRG2 is also prevalent in the chemical and petroleum industries, where its properties are advantageous for:
The electrical and food processing industries utilize S235JRG2 for its reliable performance and compliance with industry standards:
In addition to its primary uses, S235JRG2 is also widely applied in other sectors, such as:
S235JRG2’s versatility and balanced properties make it a preferred material for a wide range of applications across multiple industries, providing consistent performance and reliability.
S235JRG2 is a European standard carbon steel known for its excellent weldability and machinability. It is commonly used in various structural applications due to its balanced mechanical properties. The material has been largely replaced by S235JR in the updated EN 10025-2 standard.
Chemical Composition:
Mechanical Properties:
S235JRG2 is widely used in construction, shipbuilding, and machinery manufacturing, ideal for structures like bridges and buildings. It is equivalent to ASTM A36 (USA), DIN St37-2 (Germany), JIS SS400 (Japan), and GB Q235B (China).
With the EN 10025-2 (2006) update, S235JRG2 has been replaced by S235JR, which retains similar properties but aligns with modern standards for consistency and compliance.
Although S235JRG2 has been superseded by S235JR, it remains a significant material in structural applications due to its favorable mechanical properties and wide availability. The material’s equivalency to other international standards further enhances its versatility for global projects. However, for current applications, S235JR should be referenced to align with the latest standards and ensure compliance.
Below are answers to some frequently asked questions:
S235JRG2 is a structural steel known for its balanced mechanical and chemical properties, making it suitable for various applications in construction and mechanical industries. It has a maximum carbon content of 0.17-0.20%, manganese up to 1.40%, and low phosphorus and sulfur content (max 0.045%). Mechanically, it offers a yield strength of 235 MPa for thinner sections and a tensile strength ranging between 340-510 MPa. Its elongation at fracture is at least 16%. These properties ensure its reliability and versatility in structural applications like bridges, buildings, and piping systems.
The equivalent materials to S235JRG2 include ASTM A 283 C, DIN17100 Rst37-2, BS1449 40B, NFA 35-501 E 24-2, and UNI 7070 Fe 360 B. These equivalents are used in similar structural applications, ensuring comparable mechanical properties and chemical composition as S235JRG2, making them suitable substitutes for various construction and engineering projects.
S235JRG2 is widely used in construction and machinery manufacturing due to its structural strength and cost-effectiveness. It is commonly employed in building bridges and buildings, particularly in riveted, bolted, or welded structures. Additionally, it is used in carbon steel forged fittings like flanges for piping systems in various industries, including shipbuilding. Its general structural applications extend to welded structures and parts in transmission towers, boilers, and other building types.
S235JRG2 compares to other similar materials like S235JR, SS400, and ASTM A36 in that it shares comparable mechanical properties and chemical composition. S235JRG2 and S235JR are essentially identical, with S235JRG2 being the older designation. SS400 has a slightly higher yield strength (245 MPa) than S235JR (235 MPa), and ASTM A36 has a higher yield strength (250 MPa) and a similar tensile strength range (400-550 MPa). These materials are widely used in structural applications, making them interchangeable in many contexts based on their similar properties.
Yes, S235JRG2 material is regulated under the EuroNorm EN 10025 standard, which has been superseded by EN 10025-2 (2006). This standard addresses structural steels and specifies the technical delivery conditions for non-alloy structural steels. The material number for S235JRG2 is 1.0038. These standards ensure that the material meets specific requirements for chemical composition, mechanical properties, and other relevant characteristics, making it suitable for structural applications such as the construction of bridges and buildings.
The benefits of using S235JRG2 material include its structural integrity due to a good balance of strength and ductility, cost-effectiveness as it is relatively inexpensive compared to higher-grade steels, and ease of fabrication owing to its excellent weldability and machinability. Additionally, its versatility allows it to be used in various construction methods such as riveted, bolted, or welded applications, making it a preferred choice in building frameworks, bridge structures, machinery, and industrial uses. These characteristics make S235JRG2 a reliable and practical option for a wide range of applications.
