317L Round Bar

304 stainless steel rod under ASTM A479/A276

The austenite crystal microstructure of stainless steel 304 round bars can be achieved by adding manganese and nickel to the alloy. The following two specifications have been defined for stainless steel grade 304 flat bars, both of which are applicable to stainless steel grade 304 flat bars, as defined in ASTM A479 and ASTM A276, respectively. It is specifically referred to as ASTM A479, a specification that is specifically designed for boilers and pressure vessels, when 304 round bars are manufactured by ASME SA479 and intended for use in boilers and pressure vessels. Compared to the other specification, ASME SA479 is more detailed. This specification specifies stainless steel grades of type 304 which may be reformed and machined freely in a free-form state. In accordance with ASTM A276 type 304, a variety of conditions are available when it comes to round bar, such as condition A, H, B, S, and T.

Different furnishing requirements are required for each condition, such as Condition A, which is an annealed bar, and Condition H, which indicates a hardening and tempering temperature relative to the condition. In contrast to condition T, condition T is a hardened and tempered steel that has been subjected to extremely high temperatures. Basically, condition S means that a strain hardened, or relatively light cold worked, steel rod as defined by A276 grade 304 has been cold worked, and condition B indicates that the rod is a relatively severe cold worked steel rod as defined by ASTM A479 type 304. As a result of the heat treatment and corrosion tests carried out on ASTM A479 type 304 bars before the 304 bars can be used, they are not damaged after all.

Grade 304L Rods & Hex Bars according to ASTM A276

As It consists of ASME SA479 type 304L round bars produced from low carbon stainless steel, which has been modified to facilitate the weldability of this type of stainless steel. The chemical properties of stainless steel 304l round bars are very similar to those of stainless steel grade 304, but the alloy is considerably stronger.

Due to the fact that the alloy is resistant to grain boundary precipitates, ASME SA276 grade 304l rods can be welded. However, the alteration of the carbon content would mean that there has to be a compromise to be expected. There is no doubt that the tensile and yield strengths of ASTM A479 grade 304l bar are negatively impacted. Although there is good corrosion resistance and weldability properties in the 304l rod, it does not make a structurally sound component, because the rod lacks a good set of structural properties that help to make a structurally sound component.

In order to ensure that 304l round bar is used for applications where welded joining is necessary and superior tensile strength properties are not necessary, such as those requiring welding to join them, this round bar should only be used for these types of applications. The 304l Stainless Steel rods are normally manufactured with nitrogen in addition to the usual elements. In order to achieve the same tensile strength as the predecessor alloy, manufacturers also add nitrogen. The primary reason why nickel and molybdenum are added to austenitic steel alloys is that they stabilize the crystalline microstructure in order to produce a more attractive appearance; therefore, nickel has also been added to the stainless steel alloy of flat bars to achieve the same purpose.


In There are two types of stainless steel, 304 and 304/L (UNS S30400 and UNS S30403), which belong to the austenitic family. Since 304/L has a lower carbon content than 304, it offers greater corrosion resistance when welding, making it one of the most commonly used alloys in the stainless steel family.Generally, austenitic steels consist primarily of austenite (face-centered cubic crystal). There are two types of stainless steel, the most common used in industry today, which are 304 and 316. A structure based on iron, 18% chrome, and 8% nickel is surrounded by chromium and nickel (sometimes manganese and nitrogen). The austenitic steel cannot be hardened by heat treatment as a rule. It is generally accepted that there are two types of stainless steels that are common to industrial use. It is an austenitic surgical stainless steel type 304 which is primarily composed of stainless steel with a chromium content of 18-20% and an amount of nickel of 8-10% which is used mainlyto produce surgical instruments and other surfaces.

AMS 5639 Bar.

It is known by the AMS number of 5639 that 304 stainless steel is manufactured. Furthermore, the UNS number of this steel is S30400. Likewise, the specifications and standards are identical to those of SS 304 products. They are available in customized dimensions, with the same chemical composition, and are able to withstand high temperatures and pressures as well.

As both the SS 304 Rod and SS 304 Black Bars are made from the same stainless steel material, they have a chemical composition similar to that of the 304 steel, which means both of them are able to withstand high temperature and pressure without being damaged. SS 304 Rods and SS 304 Black Bars have a basic difference in structure as the rods have an even surface and circular cross sections. Unlike the Black Bars, which are formed by rolling, which involves passing the steel through several rolls so as to obtain the desired shape and size, the Black Bars are formed using the rolling process.

In 1.4301 AISI 304 Cold Rolled Bars, stainless steel 304 grade is used and the bars are rolled by cold rolling. Having a chemical composition of 18% chromium and 8% nickel, this stainless steel bar is widely used and versatile. Because they offer great strength, and are able to resist corrosion, they are widely used in a variety of applications. This grade of steel is austenitic and can be deeply drawn.

1.4301 Round Bar.

It is also called grade 304 and grade 304L. Stainless steel types 1.4301 and 1.4307 are also known as grades 304 and 304L respectively. A stainless steel called type 304 is widely used because it has a wide range of applications. In spite of being known for many years as 18/8, the old name of type 304 is still sometimes used, as its nominal composition is 18% chromium and 8% nickel in composition.

A 304 grade stainless steel is a high-temperature stainless steel, which is an austenitic grade that can be deeply drawn. Because of the deep drawing property, this grade is often found in applications such as sinks and saucepans, where its popularity has grown dramatically.

The 304L version is designed for higher strength components and is used in heavy gauge components for improved weldability. Some products, such as pipe and plate, may come with “dual certification” that meets both 304 and 304L requirements.

There is also a high-temperature variant of 304H on the market, which has a higher carbon content.

The property data listed in this document are typical for Bars and Sections that have been certified to EN 10088-3:2005. Other standards may also apply to these products. In general, specifications in these standards will be similar, but not necessarily the same. 

304 Stainless Steel Hollow Bar.

Stainless steel hollows have a thicker internal wall than tubular stainless steel products, so hollow stainless bars offer similar strength and performance characteristics. 

However, it is lighter in this form and therefore provides potential cost reductions without compromising performance in specific engineering applications. Additionally, stainless steel hollows can be used to reduce processing costs – reduced machining times and machining steps, increased productivity, and reduced tooling costs are all advantages of using stainless steel hollows over solid bars.


There are a number of applications where this shape will work well, and it will also allow us to offer a more cost-effective alternative to using our solid bar instead rather than boring the bars first. Uses range from architectural components, to medical, to food processing, to pharmaceutical.

SS 304 Bar.

A stainless steel material called Stainless Steel 304 Round Bar consists of 18% chromium, 8% nickel and 8% alloying components. A number of advantages are provided by this material. The material is corrosion resistant, strong and has high resistance properties. As one of the leading manufacturers and suppliers of Stainless Steel 304 Round Bar products, Navstar Steel is considered to be one of the strongest in the industry. This material has a minimum tensile strength of 515MPa and a yield strength of 205MPa. It can also operate at a high temperature.

A high melting point of 1400 degrees Celsius makes ASTM A276 Type 304 Rod capable of operating at higher temperatures. Stainless steel 304 round bars and GR 304 bright bars are among the models, specifications and types offered. A479 is a specification for hot rolled, cold drawn, and pressure vessel bars. For pressure vessel bars, high pressures are mandated by the SS UNS S30400 Hot Rolled Bar specification. Different dimensions can be available for the material.

304 Stainless Steel Rectangle Bar.

There is an addition of sulfur to 303 stainless steel rectangle bar that provides it with increased machinability over T304 stainless steel. It is corrosion resistant to ambient elements, dyes, foods, disinfectants, and most organic and inorganic chemicals as well as most inorganic chemicals.

 This is a material that is used for machining where formability is not required. In addition to offering excellent corrosion resistance to chemical corrosion, 304 Stainless Steel Rectangle Bars are also popular in industrial environments, since they are resistant to a wide range of chemical corrosion as well as industrial environments. As a result, it can be welded using any standard process, and it is dual-certified for 304 and 304L steel.

The rectangular hollow bars made of stainless steel look like pipes and tubes, but aren’t the same in any way. In order to use this component for applications that require a high degree of strength, a hollow bar supplier should think about using them. Due to the thicker walls of hollow bars, they are more sturdy and durable than standard pipes or tubes. There is no doubt that most manufacturers of Hollow Bars would agree that all round bars are comparable in strength to round carbon steel hollow bars. In spite of this, the weights of the two parts are different, with the hollow part weighing less per foot and requiring less compromise in mechanical efficiency in comparison to a round bar. Furthermore, hollow bars are typically less expensive than round bars due to the smaller metal intake.

Mokshi Shah
Mokshi Shah