Month: September 2023

What is an A105 Carbon Steel Round Bar? Properties, Uses and Composition.

Carbon steel has been used for centuries for various applications. It’s a popular choice because of its durability, versatility, and affordability. A105 carbon steel round bar is one such type that is widely used in the manufacturing industry. From machine parts to construction, this alloy has many properties and applications. This blog will look in-depth at the A105 carbon steel round bar and its properties, uses, and composition.

What is an A105 Carbon Steel Round Bar?

A105 carbon steel round bar is a medium-carbon steel rod used to fabricate fasteners such as screws, bolts, and nuts. It offers high strength with good ductility and weldability characteristics, making it suitable for applications that require moderately high strength and toughness. Its tensile strength ranges from 40–90 ksi (kilopounds per square inch), depending on the size of the bar. The hardness of A105 carbon steel round bars can be increased through induction hardening or carburizing processes. This process increases wear resistance in components that are subject to frequent use or extended exposure to extreme conditions such as pressurized gases or corrosive chemicals. A105 carbon steel round bars are commonly used in industries such as oil & gas, engineering & construction, automotive manufacturing, mining & metallurgy industries due to their excellent wear resistance properties compared to other metals.


A105 carbon steel round bar comprises carbon, manganese, phosphorus, sulfur, and silicon. The percentage of each element varies depending on the manufacturer, but carbon is always the primary component. Typically, the carbon content ranges from 0.18% to 0.25%. Manganese helps to improve the strength and toughness of the steel. Phosphorus and sulfur contribute to the machinability of the alloy, while silicon helps to improve its oxidation resistance.


Carbon steel A105 round bar has a wide range of properties, making it a popular choice for various applications. It’s excellent tensile and yield strength make it a great choice for machine parts subjected to high stresses. It’s also highly malleable, which makes it easy to shape and weld. It also has good corrosion resistance, making it suitable for outdoor applications.


Carbon steel A105 round bar has a wide range of uses. It’s commonly used to manufacture machine parts, such as bolts, nuts, and screws. It’s also used in the manufacturing of flanges and fittings, as well as in the construction industry for buildings and bridges. A105 carbon steel round bar is also used in the oil and gas industry for drill collars and other components that are subjected to high pressures and temperatures.

Heat Treatment:

One of the unique properties of the A105 carbon steel round bar is that it can be heat-treated to improve its properties. Heat treatment involves heating the metal to a specific temperature and then cooling it to change its properties. In the case of A105, heat treatment can help increase its toughness and reduce its susceptibility to cracking. This makes it suitable for applications that require high strength and durability.


A105 carbon steel round bar is also highly weldable. It can be welded using several methods, including stick welding, MIG welding, and TIG welding. However, it’s important to note that carbon steel can be affected by heat distortions during the welding process. To minimize this, it’s recommended to use preheating and proper welding techniques.


A105 carbon steel round bar is an incredibly versatile and durable alloy with many applications. Its unique properties, including excellent tensile and yield strength, good corrosion resistance, and weldability, make it a popular choice in the manufacturing, construction, and oil and gas industries. If you’re looking for a cost-effective and reliable material for your next project, the A105 carbon steel round bar is worth considering.

SA179 Tubing – A Flexible and High-Strength Metal for Your Needs

When it comes to selecting the right tubing for your application, there are many factors to consider. It would help if you considered the material strength, flexibility, durability, and cost, among others. One of the metals you might consider is SA179 tubing. This type of tubing has become quite popular due to its unique properties, making it an excellent choice for a wide range of applications. In this article, we’ll explore the benefits of SA179 tubing and why it might be the right choice for your next project.

What is SA179 Tubing?

SA179 is a seamless carbon steel tubing that is frequently used in heat exchangers and condensers. Because of its high ductility and low carbon content, it’s easily bendable and can be formed into many shapes. This makes it a top choice for many industries that require precise and flexible metal tubing. It has a tensile strength of 325MPa, which makes it quite strong and durable.

SA179 tubing is a type of carbon steel coiled seamless tube used for boiler and superheater applications. It is made from low carbon alloy, heat-treated by a cold drawing process with high-temperature annealing to achieve uniform grain size and thickness over the whole length of the tube. The SA179 tubing has better strength and corrosion resistance than low-carbon steel tubes, making it ideal for use in boilers, condensers, oil refineries, petrochemical plants and other industrial applications. The wall thickness range is 0.035″ – 0.500″ (0.89mm – 12.7mm), while the outside diameter ranges from 2” – 20” (50.8mm – 508mm). This type of tubing also comes in two different grades: Grade A & B, which have different levels of stress relief properties that offer greater flexibility when choosing a specific application to use it for or a desired degree of hardness required for various conditions that can occur during service lifetime operation under certain pressures and temperatures environments.

Benefits of SA179 Tubing

One of the key advantages of SA179 tubing is its high thermal conductivity. Due to its properties, it can efficiently transfer heat between two fluids, making it ideal for heat exchangers and other HVAC systems. SA179 tubing also has excellent corrosion resistance, which means that it can handle harsh environments and corrosive fluids without degrading. Furthermore, it can withstand high temperatures, making it the go-to choice for many industrial applications where heat is a concern.


SA179 tubing is also considered to be a cost-effective option compared to other metals. It’s readily available and easy to form, which makes it a cost-effective choice for many applications. Its low carbon content also means it has a lower price point than other carbon steels, making it an affordable option for many industries.

Applications of SA179 Tubing

SA179 tubing is commonly used in various industries, including chemical processing, oil and gas, power generation, and HVAC systems. In power generation, it’s commonly used in boilers, feed water heaters, super heaters, and preheaters. It’s used for heat exchangers, condensers, and reactors in the chemical processing industry. Its high strength, flexibility, and corrosion resistance make it a reliable and durable option for many applications.

Why Choose SA179 Tubing?

SA179 tubing’s high thermal conductivity, corrosion resistance, strength and durability make it an excellent choice for many applications. Additionally, its cost-effectiveness and easy formability make it an economical choice that many industries find appealing. SA179 tubing is often the go-to choice for many engineers and developers when searching for a flexible and durable alternative to other metals.


In conclusion, SA179 tubing is a versatile and reliable option for industries that require flexibility, durability, and affordability. Its unique properties make SA179 tubes ideal for many applications, including power generation, chemical processing, and HVAC. Whether you need it for a new or existing project, SA179 tubing offers a range of benefits you should consider. With its high strength, flexibility, and corrosion resistance, it’s a metal that delivers excellent value and performance for many years.

How to Select the Right ASTM A270 Sanitary Tubing for Your Next Project?

When planning a project that requires the use of ASTM A270 Sanitary Tubing, one of the most crucial steps is selecting the right type of Tubing. With so many options available, choosing the perfect Tubing for your project can be overwhelming. However, by considering several factors, you can ensure you select the right ASTM A270 Sanitary tubing for your specific needs.

What are ASTM A270 Sanitary Tubings?

ASTM A270 Sanitary Tubings are a set of specifications outlined by the American Society for Testing and Materials (ASTM) for stainless steel welded and seamless tubes used in the food, beverage, and pharmaceutical industries. These specifications cover the requirements for surface finish, mechanical properties, chemical composition, and dimensions. The sanitary tubing is manufactured in various grades of austenitic stainless steel, such as 304, 304L, 316, and 316L. These grades are chosen based on their high resistance to corrosion, excellent mechanical properties, and ability to withstand extreme temperatures and pressure. Also, the seamless tubes are manufactured via extrusion, while the welded tubes are produced by electric resistance welding (ERW) or Tungsten Inertia Gas (TIG) welding.

Select the Right ASTM A270 Sanitary Tubing for Your Next Project

Consider the Material:

When choosing ASTM A270 Sanitary tubing, the first and foremost factor to consider is the material. Sanitary Tubing is typically manufactured using stainless steel, which is a great option due to its durability, resistance to corrosion, and easy-to-clean properties. There are, however, different types of stainless steel, each with unique properties. For instance, you can choose between austenitic stainless steel, which is known for its high formability and weldability or ferritic stainless steel, which is excellent for use in high-temperature environments.

Gauge and Tube Dimensions:

Another critical factor to consider when selecting ASTM A270 Sanitary tubing is the tube’s gauge and dimensions. Gauge refers to the tube’s wall thickness; the thicker the gauge, the more robust the Tubing will be. The tube’s diameter and length should also be considered, as this will dictate the Tubing’s flow rate. Understanding your project’s proper sizing guidelines will ensure that the Tubing fits perfectly and functions appropriately.

Surface Finishing:

Sanitary Tubing must meet specific surface finishing requirements to ensure it’s certified for use in the food, pharmaceutical, and biotech industries. The surface finishing directly impacts the Tubing’s ability to resist corrosion. The most widely accepted surface finish requirements of Astm A270 are The Mill Finish,  when the tube possesses fine finishes as produced by the mill, 180 grit, 240 grit, 320 grit and 400 grit. 240 grit is the standard finish for most applications.

Application and Design Considerations

Your specific project’s application will determine the type of Tubing best suited to your specific needs. For instance, if your project is related to the food and beverage industry, you must choose ASTM A270 Sanitary tubing that meets specific NSF (National Sanitation Foundation) standards. Similarly, if your project involves high-temperature or corrosive environments, you must choose Tubing that is suitable for this purpose. Collaborating closely with a supplier with experience installing sanitary process systems is essential to identify your unique situation’s appropriate solution.

Compliance and Certifications

To ensure that you purchase the appropriate ASTM A270 Sanitary tubing for your project, you must ensure that the Tubing meets the necessary compliance and certification standards. The ASTM A270 standard section 6.1 ensures that materials used to make Tubing should meet required Mechanical Properties, Composition (where applicable), and Permissible variations in wall thickness. The Sanitary Tubing must also carry a certificate of conformance or an inspection release document that assures that the Tubing meets the standard, dimensional, qualitative, and surface requirements.


Picking the right ASTM A270 Sanitary tubing for your project will involve considering various factors such as material, surface finishing, dimensions, application, design considerations, and compliance/certifications. Working with experienced professionals can help you design the most effective system for your project to ensure you get the best possible results. When you choose the right Tubing for your project, you can complete your work more effectively from start to finish.