SS490 is a structural hot rolled steel defined by JIS G 3101 standard. It is commonly utilized for diverse structural applications. SS490 has superior tensile strength compared to SS400 steel. It is employed in thicknesses ranging from 6 mm to 120 mm. Its chemical makeup includes a maximum of 0.050 percent of both Phosphorous and Sulphur, with iron and minor impurities. Its mechanical properties make it ideal for manufacturing structural tubes, pipes, rods, and various sectional steels.
Overview
The SS490 material, defined in the JIS G 3101 standard, is a structural hot rolled steel known for its reliability in tensile strength and its broad range of applications in various industries. In comparison with other structural steels, SS490 emerges superior due to its impressive tensile strength and durability. This steel offers significant advantages over traditional construction materials such as concrete and wood, boasting superior strength, flexibility, and longevity.
The adoption of SS490 steel has had a profound impact on the manufacturing industry, given its versatility and suitability for a multitude of applications. From a sustainability perspective, SS490 steel is commendable for its recyclability and energy-efficient production process. It contributes significantly towards the manufacturing sector’s drive towards environmentally-friendly practices.
Future developments and innovations in SS490 steel production are expected to further enhance its properties and expand its applications. Research is ongoing to improve its resistance to corrosion and increase its yield strength without compromising its ductility. These improvements could open up new possibilities for the use of SS490 steel in high-stress and corrosive environments.
This discussion of the versatility and potential of SS490 steel smoothly transitions into our subsequent section on ‘equivalent materials’.
Reference standard: JIS G 3101
Equivalent Materials
Equivalent materials to JIS G 3101’s designated grade are essential to understand when considering alternatives or substitutes in various manufacturing and engineering applications. Material comparisons reveal that grades such as ASTM A36, ASTM A283 Grade D, EN S275JO, ISO E275B, DIN 1.0044, and UNS K02401 can be considered equivalent grades to SS490 steel.
Cross reference materials become crucial in situations where the original material is not available or does not meet the specific requirements of the application. In the case of SS490, one might consider ASTM A572 Grade 50 as an alternative option. This grade offers higher strength and is commonly used in applications requiring additional durability.
Considering material substitution opens the door for more cost-effective or performance-driven choices. For instance, the substitution of SS490 with EN S355JR could offer superior weldability and machinability. However, the suitability of these equivalent grades must be evaluated based on the specific mechanical and chemical requirements of the application.
Through detailed analysis and material comparisons, engineers and manufacturers can effectively determine alternative options and make informed decisions about material substitution.
Characteristics
Characteristics of JIS G 3101 designated grade, particularly its mechanical and chemical properties, play a crucial role in determining its suitability for various structural applications. SS490 steel is a high tensile strength steel, offering a blend of strength, ductility, and weldability. This makes it a preferred choice in industries such as construction, automobile, and heavy machinery.
Key characteristics of SS490 steel include:
- High tensile strength, offering superior load-bearing capabilities.
- Excellent ductility, allowing it to be formed into various shapes without compromising its structural integrity.
- Good weldability, facilitating easy joining and assembly of parts.
- Resilient in different weather conditions, offering long-term durability.
- Compliant with strict quality control measures, ensuring consistent performance.
SS490 steel has several advantages over other steels. It presents future developments in steel technology as it can be enhanced further for specific applications. Its comparison with other steels shows a better balance of strength, ductility, and weldability. Its applications span across different industries, from construction to automobile and heavy machinery.
Lastly, its production adheres to rigorous quality control measures, ensuring the reliability and safety of the end product.
Uses
In a variety of industries, including construction, automotive, and heavy machinery, the structural hot rolled steel known as SS490 is frequently employed due to its high tensile strength and remarkable ductility. Its ability to maintain structural integrity under strenuous conditions makes it an ideal choice for a wide range of applications.
One of the significant advantages of SS490 is its versatility. It is readily formable, thus enabling manufacturers to create a plethora of shapes and components without compromising the material’s inherent strength. When compared with other steel grades, SS490 offers superior ductility, making it a more desirable choice for applications requiring high levels of deformation.
Observing market trends, the demand for SS490 is projected to rise, particularly in the construction and automotive sectors. This is largely due to its high strength-to-weight ratio, contributing to lighter, more fuel-efficient vehicles and sturdier buildings. Case studies have shown that structures built using SS490 withstand harsh environmental conditions better than those using other steel grades.
From a sustainability perspective, the production process of SS490 is designed to minimize environmental impact. Waste material is often recycled, reducing the carbon footprint. The longevity of SS490 also reduces the frequency of replacements, contributing to more sustainable practices.
Physical Properties
Physical properties of this structural steel, such as its density, thermal conductivity, and coefficient of thermal expansion, play a significant role in its widespread usage in various industries. SS490 steel has a unique set of characteristics that make it an ideal choice for a range of applications.
- Thermal Conductivity: SS490 has a high thermal conductivity, which allows it to dissipate heat effectively. This is particularly beneficial in applications where temperature control is crucial.
- Corrosion Resistance: SS490 exhibits excellent resistance to corrosion, enhancing its durability and reducing maintenance requirements in various environmental conditions.
- Density Variations: Its density variations are minimal, making it a reliable material for structural applications where uniformity and consistency are required.
- Magnetic Properties: SS490 steel possesses magnetic properties, making it suitable for applications where magnetism is needed or can be utilized.
- Hardness Measurement: SS490 steel exhibits a high level of hardness, which contributes to its strength and durability.
Each of these physical properties contributes to the overall performance and versatility of SS490 steel, making it an optimal material choice in industries like construction, automotive, and manufacturing.
Mechanical Properties
Mechanical properties of this structural steel play a crucial role in its broad application spectrum, with tensile strength and yield point being among the most vital characteristics. When compared with other steel grades, SS490 exhibits superior tensile strength, a metric that impacts structural design significantly. The tensile strength optimization of SS490 is achieved through careful control of alloying elements, with the influence of heat treatment further enhancing this.
The yield point of SS490, another critical mechanical property, is influenced by the alloying elements present, and is also subject to improvement under the right heat treatment conditions. Compared to other steel grades, the yield point of SS490 steel is at the higher end of the scale, thus enabling the design of robust and durable structural components.
The effects of alloying elements and heat treatment on the mechanical properties of SS490 makes it not just a material of choice for structures requiring high strength, but also for those needing advanced weldability and formability properties.
| Symbol of grade | Yield point or proof strength N/mm2 | Tensile strength N/mm2 | Elongation | Bendability | |||||||
| Thickness a) mm | Thickness a) mm | Test piece | % | Bending angle | Inner radius | Test piecec) | |||||
| ≤16 | >16 ≤40 | >40 ≤100 | >100 | ||||||||
| SS490 | ≥285 | ≥275 | ≥255 | ≥245 | 490 to 610 | ≤5 in thickness of steel plates/sheets, strips in coil and flats | No. 5 | ≥19 | 180° | 2.0 x thickness | No. 1 |
| >5 ≤16 in thickness of steel plates/sheets, strips in coil and flats | No. 1A | ≥15 | |||||||||
| >16 ≤50 in thickness of plates/sheets, strips in coil and flats | No. 1A | ≥19 | |||||||||
| >40 in thickness of plates/sheets and flats | No. 4 | ≥21 b) | |||||||||
| ≤25 in diameter or distance across flats of bars | No.2 | ≥18 | 180° | 2.0 x diameter or distance across flats | No. 2 | ||||||
Chemical Composition
The chemical composition of this particular steel grade, which includes elements such as carbon, manganese, phosphorous, and sulphur, plays a critical role in determining its overall properties and performance. Specifically, the presence of carbon and manganese contributes to the strength to weight ratio, a key factor in its broad application in construction and manufacturing industries.
The SS490 steel grade exhibits commendable corrosion resistance, primarily due to its carefully balanced proportions of phosphorous and sulphur. These elements, in the correct ratios, serve to enhance the overall weldability of the material, making it an optimal choice for structural and mechanical engineering applications.
Further, the potential environmental impact of this steel grade is mitigated by the possibility of nanotechnology enhancements. These advanced techniques can potentially improve the material’s properties, thereby reducing the need for replacement and contributing to sustainability efforts.
| Symbol of grade | C | Mn | P | S |
| SS490 | — | — | ≤0.050 | ≤0.050 |
Elements in the table with no limit values or elements not given in the table may be added as necessary.
Redstone Manufacturing does not guarantee the accuracy of the information contained within the above table. Some metrics have been rounded, converted, or estimated. Consult a qualified engineer to confirm the accuracy of the information contained on this webpage.