ASTM A105 is a widely used specification that covers standards for carbon steel forgings intended for use in pressure systems at ambient and higher-temperature service conditions. Specifically, ASTM A105 focuses on forged carbon steel piping components such as flanges, fittings, valves, and similar parts, commonly used in various industries, including oil and gas, petrochemical, and power generation.
Heat Treatment of ASTM A105 Carbon Steel Bars:
ASTM A105 requires the carbon steel bars to undergo a heat treatment process, typically normalisation or quenching and tempering, to achieve the desired mechanical properties. Heat treatment helps refine the microstructure of the material, improving its strength, toughness, and overall performance. The specific heat treatment process depends on the size and thickness of the forgings.
Testing and Inspection of ASTM A105 Carbon Steel Bars:
To ensure the quality and reliability of ASTM A105 carbon steel bars, various tests, and inspections are conducted during and after the manufacturing process. Common tests include chemical analysis, tensile testing, impact testing, hardness testing, and non-destructive examination methods such as ultrasonic testing. These tests help verify that the material meets the stringent standards set by ASTM A105.
Tricon Steel and Alloys, headquartered in Mumbai, India, stands as a distinguished manufacturer and supplier of ASTM A105 Carbon Steel Bars. With a commitment to quality and precision, we have emerged as a leading name in the industry. Our state-of-the-art manufacturing facilities ensure the production of high-grade carbon steel bars that adhere to ASTM A105 standards. As a reliable partner, we cater to diverse industrial sectors, providing top-notch products that meet stringent specifications. Our team of skilled professionals and stringent quality control processes guarantee customer satisfaction. At Tricon Steel and Alloys, we take pride in our reputation for excellence, making us the preferred choice for ASTM A105 Carbon Steel Bars in India.
Specifications | ASTM A105, ASME SA105 |
Dimension Standard | EN, DIN, JIS, ASTM, BS, ASME, AISI |
Bar Diameter | 3 ~ 800mm |
Hex Bar size | 2-100mm A/F |
Flat bar size | Thickness: 2 -100mm. Width: 10 to 500mm. |
Square bar size | 4 to 100mm |
Rectangular Bars | Size: 33 x 30mm to 295 x 1066mm. Thickness: 3.0 to 12.0mm. |
Hollow Bars | 32mm OD x 16mm ID to 250mm OD x 200mm ID) |
Billet Size | 1/2 to 495mm Diameter |
Finish | Cold (bright) drawn, centreless ground, hot rolled, smooth turned, peeled, slit rolled edge, hot rolled annealed, Rough Turned, Bright, Polish, Grinding, Centreless Ground & Black |
Tolerance | H8, H9, H10, H11, H12, H13K9, K10, K11, K12 or as per clients requirements |
Bar Surface | Bright, Hot Rolled Pickled, Cold Drawn, Sand Blasting Finished, Polished, Hairline |
Rolled Bars Condition | Hardened & tempered, annealed |
Cold Rolled Bar Technique | Hot Rolled, Cold Drawn, Cold Rolled, Forged Round Bar, Rod |
Form | Round, Rod, T-Bar, Channel Bar, Precision Ground Bar, Flat Bar, Square, Blocks, Round Rod, Rings, Hollow, Triangle, Rectangle, Hex (A/F), Threaded, Half Round Bar, Profiles, Billet, Ingot, I/H Bar, Forging etc. |
The manufacturing process of ASTM A105 carbon steel bars involves several steps. It begins with the selection of high-quality raw materials, followed by forging, heat treatment, and final inspection. Forging involves shaping the material through the application of heat and pressure, creating components with enhanced mechanical properties. The heat treatment process further refines the material, ensuring it meets the specified requirements.
Melting
The first step in the process is melting raw materials in an electric furnace. These raw materials are typically iron ore, chromium, nickel, and other elements in exact amounts.
Hot Rolling
After being heated, the billets are shaped into long, thin rods by going through a series of rolling mills. Because the metal is heated above its recrystallization temperature during this operation, it is known as hot rolling.
Pickling
The pickling process is used to the bars in order to eliminate any oxide, scale, or other surface contaminants. Usually, an acid solution is used for this.
Cutting
Lastly, shearing machines or other cutting techniques are used to cut the rods to the required length.
STANDARD | UNS | DIN |
ASTM A105 | K03504 | 1.0460 |
ASTM A105 specifies the chemical composition requirements for carbon steel forgings. The material must conform to specific limits for carbon, manganese, phosphorus, sulfur, silicon, and copper elements. The carbon content is a crucial factor, as it influences the material's mechanical properties and its ability to withstand pressure and temperature.
Grade | C | Mn | Si | P | Cr | Mo |
ASTM A105 | 0.35 max | 0.60 - 1.05 max | 0.10 - 0.35 max | 0.035 max | 0.3 max | 0.12 max |
The mechanical properties of ASTM A105 carbon steel bars are essential for ensuring the material's suitability for the intended application. These properties include tensile strength, yield strength, elongation, and hardness. The forging process enhances the material's mechanical properties, making it durable and capable of withstanding the demanding conditions in pressure systems.
Grade | Tensile Strength (psi) | Elongation | Yield Strength |
Carbon Steel ASTM A105 | 70,000 psi (min) | 30% min | 36,000 psi (min) |
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ASTM A105 carbon steel bars are extensively used in pressure piping systems, where the combination of strength and corrosion resistance is crucial. They are commonly used for manufacturing flanges, fittings, and valves in pipelines that transport fluids or gases at elevated temperatures and pressures. The versatility and reliability of ASTM A105 make it a preferred choice in various industries for ensuring the integrity and safety of critical infrastructure.
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