STRUCTURAL STEEL

Construction is a dynamic industry, and the use of the right materials plays a significant role in ensuring the durability and longevity of a structure. One of the most critical materials used in construction is steel bars, which provide support and reinforcement to concrete structures. Table of Content 1. Understanding TMT Bars 2. TMT Bars Length and Weight Chart 3. TMT Calculator 4. How to Calculate TMT Bar Weight? 5. Importance of TMT Bar Weight Chart 6. Wrapping It Up In this blog, we will focus on TMT Bars, their length, and weight, and the complete overview of the TMT weight chart. Understanding TMT Bars TMT Bars or Thermo Mechanically Treated Bars are a type of reinforcement steel bars that are extensively used in construction for providing strength and support to concrete structures. They are preferred over traditional steel bars due to their excellent properties, such as high tensile strength, ductility, and durability. TMT Bars are manufactured through a process known as Thermo Mechanical Treatment, which involves the rapid cooling of hot-rolled steel bars after they pass through a series of rollers. This process imparts superior mechanical properties to the TMT Bars, making them ideal for use in construction. What are the Properties of TMT Bars? TMT Bars possess a range of properties that make them highly suitable for use in construction. The most important properties of TMT Bars include: High Tensile Strength: TMT Bars have a high tensile strength, which means that they can withstand significant amounts of stress without breaking. Ductility: TMT Bars have excellent ductility, which means that they can be bent and shaped without breaking. Corrosion Resistance: TMT Bars are highly resistant to corrosion, which makes them ideal for use in areas where there is exposure to moisture and other corrosive elements. Weldability: TMT Bars are highly weldable, which means that they can be easily welded to other steel components. Fatigue Resistance: TMT Bars have excellent fatigue resistance, which means that they can withstand repeated stress cycles without failing. What are the Different Types of TMT Bars? There are different types of TMT Bars available in the market, each with unique properties and characteristics. Some of the common types of TMT Bars include: Fe 415: This type of TMT Bar has a minimum yield strength of 415 N/mm2 and is commonly used in construction for general purposes. Fe 500: This type of TMT Bar has a minimum yield strength of 500 N/mm2 and is ideal for use in earthquake-resistant structures. Fe 550d: This type of TMT Bar has a minimum yield strength of 550 N/mm2 and is commonly used in high-rise buildings and bridges. What are the Applications of TMT Bars in Construction? TMT Bars are extensively used in construction for various purposes, such as: Reinforcing Concrete Structures: TMT Bars are used to reinforce concrete structures, such as columns, beams, and slabs, to provide additional strength and durability. Construction of Bridges: TMT Bars are used in the construction of bridges to provide support and strength to the structure. Construction of High-Rise Buildings: TMT Bars are used in the construction of high-rise buildings to provide the necessary strength and support to the structure. Earthquake-Resistant Structures: TMT Bars are used in the construction of earthquake-resistant structures to provide the necessary strength and ductility to withstand seismic forces. TMT Bars Length and Weight Chart TMT weight chart is an essential tool in construction, as it helps to determine the weight of a steel bar per meter. The weight of TMT Bars varies depending on their diameter or size. The most common TMT Bar sizes used in construction are 8 mm, 10 mm, 12 mm, 16 mm, and 25 mm. TMT bars size (mm) Length Per Rod (m) Weight (Kg/m) 8mm 12 0.395 10mm 12 0.617 12mm 12 0.888 16mm 12 1.579 25mm 12 3.853 28mm 12 4.840 32mm 12 6.310 TMT Bar Weight Calculation To calculate the weight of a TMT Bar, you need to know its diameter or size and length. You can use the following formula to calculate the weight of a TMT Bar: Weight of TMT Bar (kg/m) = (D^2/162) x L Where D is the diameter of the TMT Bar in millimeters, and L is the length of the TMT Bar in meters. For example, to calculate the weight of a 16 mm TMT Bar that is 10 meters long, you can use the formula as follows: Weight of 16 mm TMT Bar = (16^2/162) x 10 = 15.46 kg TMT Calculator TMT Calculator is a tool that helps to calculate the weight of a TMT Bar per meter or per piece. The TMT Calculator uses the diameter and length of the TMT Bar to calculate its weight. You can find TMT Calculator online, and it is free to use. How to Calculate TMT Bar Weight? To calculate the weight of a TMT Bar manually, you need to follow these simple steps: Step 1: Determine the diameter of the TMT Bar that you want to calculate the weight for. The diameter is typically measured in millimeters. Step 2: Once you know the diameter, use the formula mentioned above to calculate the weight of the TMT Bar per meter or per piece. Step 3: If you need to calculate the weight of the TMT Bar for a specific length, you can use the TMT bar weight per meter value obtained from the formula and multiply it by the required length. Step 4: Alternatively, you can use the TMT Calculator available online, which simplifies the process and provides accurate results. Importance of TMT Bar Weight Chart TMT Bar Weight Chart is an essential tool for engineers, architects, and construction workers. It helps them to determine the amount of steel required for a particular construction project and to ensure that the right quantity and size of TMT Bars are used. It also helps to estimate the cost of the project accurately. TMT Bars are one of the most important construction materials, and their quality and strength play a significant role in the safety and longevity of a building. The TMT Bar weight chart is a valuable resource for ensuring that the right TMT Bar is used for a specific

The strength and durability of a building structure are heavily influenced by the materials used and their proper application. Among the key components in construction are cement and TMT (Thermo-Mechanically Treated) bars. Understanding how these materials contribute to the strength of a structure involves exploring their properties, the principles behind their use, and their interaction in concrete construction. Table of Content 1. Cement: The Foundation of Concrete Strength 2. TMT Bars: Reinforcing the Structure 3. Concrete Structure: Combining Cement and TMT Bars 4. Structural Design and Construction Practices 5. Structural Performance and Safety 6. Conclusion 1. Cement: The Foundation of Concrete Strength Composition and Types: Cement is a fine powder made from limestone, clay, shells, and silica. It is a key ingredient in concrete, which is a composite material used in construction. The most commonly used type of cement is Ordinary Portland Cement (OPC), though there are various types including Portland Pozzolana Cement (PPC) and Sulphate Resisting Cement (SRC) depending on specific requirements. Hydration Process: When mixed with water, cement undergoes a chemical reaction called hydration. This process involves the formation of calcium silicate hydrate (C-S-H) and calcium hydroxide. The C-S-H gel is responsible for the strength and stability of the concrete, as it binds the aggregate particles together, while calcium hydroxide helps in further hydration processes. Concrete Strength: The strength of concrete is determined by its compressive strength, which is the ability of the concrete to withstand axial loads without failing. This strength is influenced by the cement-to-water ratio. Too much water can weaken the concrete, while too little water can prevent proper hydration. The standard practice is to use a mix ratio that ensures the optimal strength for the intended use. 2. TMT Bars: Reinforcing the Structure Manufacturing Process: TMT bars are high-strength deformed bars used as reinforcement in concrete structures. They are made from steel billets or blooms that undergo a thermo-mechanical treatment process. This process involves heating the steel to a high temperature and then rapidly cooling it, which imparts a hard outer layer and a softer, more ductile core. Properties of TMT Bars: High Strength: The outer layer of TMT bars is hard and strong, which helps in resisting tensile forces. The core remains ductile, allowing the bars to withstand significant stress without breaking. Ductility: The inner core’s ductility ensures that the bars can bend and stretch without fracturing, which is crucial for earthquake-resistant structures. Corrosion Resistance: TMT bars often have better resistance to corrosion compared to traditional bars, thanks to their surface treatment and the properties imparted during the manufacturing process. Role in Concrete Structures: TMT bars provide tensile strength to concrete structures, which are inherently strong in compression but weak in tension. When embedded in concrete, TMT bars help in resisting tensile forces and cracking, thus ensuring the overall stability and strength of the structure. 3. Concrete Structure: Combining Cement and TMT Bars Reinforced Concrete: Concrete is strong in compression but weak in tension. To overcome this limitation, TMT bars are embedded within concrete to create a composite material known as reinforced concrete. Combining concrete and TMT bars results in a material that can withstand compressive and tensile forces. Load Distribution: In a reinforced concrete structure, the concrete handles the compressive loads, while the TMT bars handle the tensile loads. This distribution of loads ensures that the structure can support greater weights and resist various forces without failing. Bonding and Adhesion: For a structure to be strong, it is essential that the TMT bars and concrete bond well together. The rough surface of TMT bars provides better adhesion with concrete, which is crucial for transferring loads effectively between the two materials. Proper curing of concrete is also vital to ensure this bonding and achieve the desired strength. 4. Structural Design and Construction Practices Mix Design: The design of the concrete mix is critical for the strength of the structure. Engineers use mix design calculations to determine the appropriate proportions of cement, sand, aggregate, and water. This design ensures that the concrete has the desired properties, including strength, workability, and durability. Reinforcement Placement: The placement of TMT bars within the concrete is done according to specific structural requirements. Bars are placed in positions where tensile stresses are expected to be highest. Proper spacing, alignment, and anchoring of the bars are crucial to ensure that the structure can handle the applied loads effectively. Curing and Quality Control: Once the concrete is poured and the TMT bars are in place, proper curing is essential to achieve the desired strength. Curing involves keeping the concrete moist to allow complete hydration of the cement. Quality control measures, including regular testing of concrete and steel, ensure that the materials meet the required standards and specifications. Construction Techniques: Modern construction techniques, such as the use of formwork, scaffolding, and vibration, play a significant role in ensuring the strength of the structure. Formwork holds the concrete in place while it sets, and vibration helps to remove air bubbles and ensure proper compaction. 5. Structural Performance and Safety Structural Integrity: The combination of cement and TMT bars in concrete structures results in a material with high structural integrity. Properly designed and constructed reinforced concrete structures can withstand various stresses and loads, including those from environmental factors such as wind, earthquakes, and thermal expansion. Durability and Maintenance: Reinforced concrete structures are designed to be durable and require minimal maintenance. The combination of concrete’s resistance to weathering and TMT bars’ resistance to corrosion contributes to the long-term performance of the structure. Regular inspections and maintenance are still essential to address any potential issues and ensure the continued safety of the structure. Failure Modes: Understanding potential failure modes, such as bending, shear, and buckling, is important for designing safe structures. Engineers use principles of structural analysis to predict and mitigate these failure modes, ensuring that the structure remains stable under various loading conditions. Conclusion The strength of a cement and TMT bar structure is the result of the synergistic properties of both materials. Cement provides compressive strength through

A beautiful home or an amazing office is a dream for almost all of us. When we think of these dream spaces, we visualize high rises, glass windows, gleaming paints, and grand architecture. What we rarely pay attention to is what holds all these together – what is it that makes your dream home a reality in terms of structure? Table of Content 1. TMT bars stand for Thermo Mechanically Treated Steel Bars 2. This led to the rise of TMT bars 3. Why TMT Bars Are Integral to Modern-Day Construction This magical element in modern-day construction is TMT bars. These TMT bars are required for house construction, flyovers, bridges, dams, large complexes, and any other modern structure you can imagine. The question is, why have TMT bars become so indispensable to construction across the world? Let’s find out in the next section. TMT bars stand for Thermo Mechanically Treated Steel Bars. ● Before TMT bars became popular, most construction activities used raw materials of concrete, mild steel bars, and HYSD bars. ● For a while, these served the purpose, but over time, issues started cropping up. For instance, concrete was prone to high residual tension, mild steel and HYSD were, on the other hand, prone to corrosion and were easily damaged in cases of seismic activity. ● So, the need for a stronger, more durable, and cost-effective alternative was felt in the construction industry. This led to the rise of TMT bars. ● TMT bars are made from raw materials of iron ore, dolomite, and coal. During the manufacturing process, iron ore is shaped into pellets, and these are added to a furnace. ● Once in the furnace, hot air is supplied, and these raw materials are melted and, later on, solidified. It this post this that TMT bars undergo water quenching, self-tempering, and atmospheric cooling. It is this elaborate process that makes TMT bars a force to reckon with in the construction world. Why TMT Bars Are Integral to Modern-Day Construction. The above process lends a few unique traits to TMT bars. These are: ● Strength – TMT bars are exceptionally strong and have high load-bearing capacity. This is what makes them so perfect in the use of construction. We are living in a world where high rises are seen everywhere. To build such large structures without compromising on safety, TMT bars are needed. Also, TMT bars are better than regular reinforcement bars offered in the markets. TMT bars also come in grades, so builders can pick grades based on the type of structure being built. ● Flexibility –Rarely is something strong considered as flexible. TMT bars are an exception to this rule. TMT bars are highly flexible and also light. Its lightweight quality makes it easy to transport and handle, while its flexibility makes it easy to mold. It is also because of this flexibility that architects and engineers can plan and build beautiful structures. ● Bonding With Concrete – Concrete is also another building block of most structures. So TMT bars need to bond well with concrete. This bonding is essential to ensure the overall strength of the structure and its longevity. TMT bars, have by far, displayed the most superior bonding with concrete compared to ordinary steel bars. ● Earthquake and Fire Resistant – TMT bars don’t just offer strength but also resistance. These bars have the unique ability to sustain high vibrations. This makes them ideal for seismic zones where homes need protection from earthquakes. Another property of TMT bars is their ability to resist fire. This is an integral quality, since factories and industrial plants are more prone to such accidents. ● Corrosion Resistant – Corrosion can slowly eat up the structure from the inside and make it hollow. This can then lead to a lot of damage to the structure due to repeated exposure to the elements of nature. TMT bars easily overcome this problem with their high corrosion-resistant properties. TMT bars withstand moisture without rusting. Therefore, TMT bars are widely used in coastal regions and also regions that experience heavy rainfall.

MS Channels: Ultimate Guide to Strength and Versatility MS (Mild Steel) channels play a vital role in the realm of construction and engineering. These wonderful building materials offer great structural support and versatility. MS channels, also known as MS C-channel or MS U-channel, are widely used for various applications due to their excellent strength, durability, and cost-effectiveness. Table of Content 1. What is an MS Channel? 2. Types of MS Channels 3. Three types of MS Channels are typically used in industries 4. MS Channels Weight and Size Chart 5. Advantages of MS Channels 6. Uses of MS Channels 7. Structural Support 8. Roofing and Flooring systems 9. Racks and Shelves 10. Material Handling Equipment 11. Vehicle and Machinery Frames 12. Support Structures in Bridges   If you are curious about MS channels and wish to know more about them, you need not look any further. Here is your essential guide to MS channels, telling you all you need to know about their types, advantages, and applications. What is an MS Channel? The MS channel is an important variety of steel that has diverse applications. MS channels are available in several varieties in terms of size and colour. They even boast a hot-rolled finish of superior quality. Two types of MS channels are available, namely the MS C-channel and the U-channel. The moderate carbon content of MS channels makes them amenable to several uses. They also allow simple work including cutting, framing, welding, and machining. They are known for their exceptional load-bearing capacity. However, they cannot be used in destructive applications without protective layering. Types of MS Channels Three types of MS Channels are typically used in industries: Plain Channels: A plain channel is a kind of metal bracket that is designed specifically to act as a channel support system for installation work or construction activities including plumbing, electrical work, and mechanical works. Universal Channels: These channels allow diverse forms of work such as drilling, welding, and/or cutting thereby making them suitable for a rich variety of applications. Lipped Channels: Lipped channels are typically designed as structural components in the erection of structures and/or They are known for their exceptional load-bearing capacity construction of buildings. MS Channels Weight and Size Chart MS C-channel dimensions and weight vary depending on their type and design. It is essential to refer to MS C-channel sizes and MS C-channel weight chart provided by steel manufacturers to select the appropriate channel for your specific requirements. Several steel channel weight calculators are also easily available online for your perusal. Advantages of MS Channels MS channels offer several advantages that make them extremely popular choices in a wide spectrum of industries. Strength and Durability: MS channels are widely known for their robustness and high load-bearing capacity. They can withstand heavy loads and provide persistent structural stability. Cost-effectiveness: Mild steel is relatively inexpensive compared to other materials, making MS channels a cost-effective choice for various projects. Versatility: MS channels are available in varied sizes, lengths, and configurations, allowing for versatility in design and application. They can be easily cut, welded, or modified to meet specific project requirements. Convenient Fabrication: Mild steel is malleable, enabling easy fabrication and customization of MS channels. They can be shaped and formed into desired configurations without compromising their structural integrity. Corrosion Resistance: MS channels can be coated or treated to enhance their corrosion resistance, ensuring their longevity and suitability for outdoor applications. Allows Carburising: MS channels can be carburized. This means that they can undergo a heat treatment process which liberates the carbon in its composition as the steel is heated. After cooling, this treatment allows the surface to remain hard while the core is strong but soft. This greatly enhances the channel’s strength and longevity. Can be Recycled: It is extremely convenient to recover MS channels from unsorted waste due to their magnetic properties. Scrapped MS from channels is crucial in the manufacturing of fresh batches. Uses of MS Channels The various advantages of MS channels also make them indispensable raw materials across industries. They have extensive applications in several industries and are also used for fabrication purposes, cutting, machining, and framing, as well as to strengthen bridges and vehicles. Some of the most important uses of MS channels are listed below. 1. Structural Support One of the primary uses of MS channels is providing structural support in construction projects. They are widely used in building frames, including residential, commercial and industrial structures. MS channels offer excellent load-bearing capacity, making them suitable for supporting vertical and horizontal loads such as walls. They are extensively used to strengthen walls of warehouses, garages, and so on. They contribute to the overall stability and strength of the wall, enhancing its integrity. 2. Roofing and Flooring systems MS channels play a vital role in roofing and flooring systems. They are employed as purlins or joists to support decking materials, such as sheets or wooden boards. MS channels distribute the weight evenly across the structure, preventing sagging or structural damage. Their sturdiness and durability make them ideal for withstanding the load and providing a reliable foundation. 3. Racks and Shelves MS channels are extensively used in the fabrication of storage racks, shelves, and warehouse systems. The strength and stability of MS channels allow for the safe storage of heavy objects and efficient utilization of space. They provide a solid framework for organizing and storing materials, equipment, and products in various industries, including warehousing, logistics, and retail. 4. Material Handling Equipment MS channels are also essential components in the construction of material-handling equipment, such as conveyors, cranes, and even trailers. They serve as structural elements for supporting the moving parts and carrying heavy loads. Sometimes, even the tongue and the main frame rails of trailers are constructed using heavy-duty MS channels. 5. Vehicle and Machinery Frames Manufacturers of vehicle frames, machinery structures, and agricultural equipment often make use of MS channels. They provide a tough framework that can withstand the vibrations, shocks, and stress associated with operating vehicles and machinery.  6. Support Structures in Bridges MS channels are also essential components in the construction of

1/2″ TO 6″ (IS 1239) IS 1239 ERW Galvanized steel pipes are used for the major for construction and transmission of Water throughout the world. We at JND Traders Pvt Ltd Supply the best quality pipes from leading manufacturers in India as well as abroad. All our suppliers manufacture the pipes as per specifications established by various international standards institute. ♦   ERW:Electric Resistance Welded ♦   Material:Carbon Steel / Mild Steel Mild Steel Pipes, MS Tubes Dimensions Confirming to IS: 1239 (Part – I) – 2004, Equivalent to BS – 1387 / 1985 Thickness wise Weight Chart Edit NB Class Outside Diameter Wall Thickness Weight Length mm Min Max mm SWG kg/m m/tone 15 (1/2″) L 21.0 21.4 2.0 14 0.95 1056 M 21.0 21.8 2.6 12 1.21 826 H 21.0 21.8 3.2 10 1.44 694 20 (3/4″) L 26.4 26.9 2.3 13 1.38 724 M 26.5 27.3 2.6 12 1.56 641 H 26.5 27.3 3.2 10 1.87 534 25 (1″) L 33.2 33.8 2.6 12 1.98 505 M 33.3 34.2 3.2 10 2.41 415 H 33.3 34.2 4.0 8 2.93 341 32 (1 1/4″) L 41.9 42.5 2.6 12 2.54 393 M 42.0 42.9 3.2 10 3.10 322 H 42.0 42.9 4.0 8 3.79 264 40 (1 1/2″) L 47.8 48.4 2.9 11 3.23 309 M 47.9 48.8 3.2 10 3.56 281 H 47.9 48.8 4.0 8 4.37 229 50 (2″) L 59.6 60.2 2.9 11 4.08 245 M 59.7 60.8 3.6 9 5.03 199 H 59.7 60.8 4.5 7 6.19 161 65 (2 1/2″) L 75.2 76.0 3.2 10 5.71 175 M 75.3 76.6 3.6 9 6.42 155 H 75.3 76.6 4.5 7 7.93 126 80 (3″) L 87.9 88.7 3.2 10 6.72 149 M 88.0 89.5 4.0 8 8.36 119 H 88.0 89.5 4.8 6 9.90 101 100 (4″) L 113.0 113.9 3.6 9 9.75 102 M 113.1 115.0 4.5 7 12.20 80 H 113.1 115.0 5.4 5 14.50 69 125 (5″) M 138.5 140.8 4.8 6 15.90 63 H 138.5 140.8 5.4 5 17.90 56 150 (6″) M 163.9 166.5 4.8 6 18.90 53 H 163.5 166.5 5.4 5 21.30 47 L : Light Weight (A-Class), M : Medium Weight (B-Class), H : Heavy Weight (C-Class) Edit A) Thickness Positive Nagative 1. Welded Light Tubes + Not Limited -8% 2. Welded Medium & Heavy tubes + Not Limited -10% B) Weight Positive Nagative 1. Single Tube (Light Series) +10% -8% 2. Single Tube (Medim & Heavy Series) +10% -10% 3. For quantities per load of 10 tonnes minimum (Light Series) +7.50% -5% 4. For quantities per load of 10 tonnes minimum (Medim & Heavy Series) +7.50% -7.50% Carbon Steel IS 1239 Properties Edit Chemical Composition C Mn P S 0.2 1.3 0.04 0.04 Edit Mechanical Tensile Strength Min Mpa 320 Edit Mechanical % Elongation NB % Min 1. For steam services for all sizes 20 2. Up to and including 25 mm 12 3. Over 25 mm up to and including 150 mm 20 Edit Hydro Test Min Mpa 5 Features of IS 1239 Pipes 1. Material: IS 1239 Pipes are made from high-quality mild steel, which provides excellent strength, durability, and reliability. Mild steel is a low-carbon steel with good weldability and formability properties, making it an ideal choice for manufacturing pipes. 2. Dimensions and Tolerances: These pipes follow strict dimensional and tolerance guidelines as per the IS 1239 standard. As given above. 3. Surface Finish: The IS 1239 Pipes typically come with a black finish, which is obtained by treating the pipes with anti-corrosive oil or varnish to protect them from rust and corrosion during transportation and storage. 4. Marking and Certification: All IS 1239 Pipes must be marked with their size, type, grade, and the IS 1239 standard number. The manufacturers also provide a test certificate, ensuring the pipes conform to the specified quality requirements. Applications of IS 1239 Pipes IS 1239 Pipes are suitable for a wide range of applications, including: 1. Construction: These pipes are used in building structures, support frameworks, scaffolding, and fencing systems due to their strength and durability. 2. Plumbing and Water Supply: IS 1239 Pipes are utilized in water supply systems, drainage systems, and firefighting systems, as they can withstand high pressure and resist corrosion. 3. Industrial Infrastructure: These pipes are employed in various industries such as oil and gas, power plants, petrochemicals, and manufacturing units for process piping, heat exchangers, and structural supports. Agricultural Purposes: IS 1239 Pipes are also used in agricultural applications, including irrigation systems, water wells, and greenhouse structures Benefits of IS 1239 Pipes 1. Cost-Effective: Mild steel is an economical material, making IS 1239 Pipes a cost-effective choice for various applications without compromising on quality. 2. High Strength and Durability: These pipes possess excellent strength and durability, ensuring a long service life even in demanding environments. 3. Easy Installation and Maintenance: The weldability and formability of mild steel make IS 1239 Pipes easy to install, modify, and maintain. 4. Availability and Customization: IS 1239 Pipes are available in a wide range of sizes and thicknesses, which can be customized according to specific project requirements. Popular Indian Manufacturer of IS 1239 Pipes Some prominent Indian manufacturers of IS 1239 pipes include: Jindal Pipes Limited Jindal Industries Private Limited Tata Steel Limited Surya Roshni Limited Maharashtra Seamless Limited APL Apollo Tubes Limited Asian Tubes Private Limited Welspun Corp Limited Hi-tech Pipes Private Limited Please note that this list is not exhaustive, and there may be other reputable manufacturers in the Indian market. Conclusion IS 1239 Pipes are a versatile and reliable option for various industries due to their excellent features, a wide range of applications, and numerous benefits. By adhering to strict quality standards, these pipes ensure consistent performance and durability in challenging environments. Whether it’s for construction, plumbing, industrial infrastructure, or agricultural purposes, IS 1239 Pipes are a reliable choice that can meet your project requirements efficiently and economically