+8615824687445
Home / Knowledge / Details

Aug 05, 2025

Difference Between SS 304 and SS 316 Round Bars

 
SS 304 Bar and SS 316 Round Bars
Difference Between SS 304 and SS 316 Round Bars
01

Difference Between SS 304 and SS 316 Round Bars

The main difference between SS 304 rod and SS 316 round bar is their chemical composition and the resulting corrosion resistance. SS 316 contains molybdenum, which increases its resistance to harsh chemicals, chlorides, and saltwater environments compared to SS 304. This makes SS 316 a better choice for marine or chemical applications, while SS 304 is more commonly used in general industry and kitchens.

02

What are the disadvantages of 316 stainless steel?

While 316 stainless steel offers excellent corrosion resistance, it does have some drawbacks. The main drawbacks are its higher cost compared to other grades, such as 304, and its poorer machinability and formability. It is also susceptible to stress corrosion cracking in certain harsh environments.

316 Stainless Steel
304 Stainless Steel
03

What are the disadvantages of 304 stainless steel?

While 304 stainless steel offers good corrosion resistance and a wide range of uses, it does have some drawbacks. These include being susceptible to scratching, being less strong than some other steels, and being susceptible to corrosion in certain environments. It also performs poorly in extreme temperatures and can be difficult to weld.

What are Stainless Steel 304 Round Bars?

304 stainless steel bar is a long, cylindrical metal rod with a variety of industrial and commercial uses. Shafts are the most common application. 304 stainless steel bar is made from stainless steel containing 18% chromium and 8% nickel. 304 stainless steel bar has a tensile strength of 75 ksi and a yield strength of 30 ksi (with 0.2% nickel). Mechanical properties of 304 stainless steel bar include a density of 8.0 g/cm³ and a melting point of 1400 °C (2550 °F).

Common uses for 304 stainless steel bar include brackets, decorative parts, shafts, brackets, pins, and dowels. 304 stainless steel bar is used when strength, electrical conductivity, corrosion resistance, and spark resistance are required. When polished, 304 stainless steel bar is easy to manufacture and has an attractive luster.

Uses of Stainless Steel 304 Round Bars

Storage tanks and tools

Food industry equipment and supplies

Construction equipment

Filters

Fasteners for corrosive marine environments

 

What are Stainless Steel 316 Round Bars?

316 stainless steel round bar (SS 316 bar) is a molybdenum-containing austenitic steel that is more resistant to pitting and crevice corrosion than more common chromium-nickel austenitic steels such as 304 stainless steel.

SS 316 round bar is primarily used in maritime applications. The structure of 316 stainless steel round bar is similar to that of 304 stainless steel round bar. The addition of 2-3% molybdenum increases the steel's resistance to pitting and crevice corrosion and improves weldability.

Uses of Stainless Steel 316 Round Bars

Exhaust manifolds

Furnace components

Heat exchangers

Jet engine components

Pharmaceutical and industrial equipment

Photographic equipment

Valves and pumps

Pump components

Chemical processing equipment

Storage tanks

Evaporators

Gnee Steel

 

About Gnee Steel

Gnee Steel specializes in the production and sale of a wide range of stainless steel products, including 304, 316, 321, 904, 904L, duplex 2205, 2205 duplex, and 316L stainless steel. Gnee Steel's products are widely used in the kitchen, aerospace, chemical, electric power, automotive, and nuclear energy sectors. We also offer customized stainless steel solutions tailored to customer needs. For stainless steel pricing inquiries or customized alloy solutions, please contact us for a quote at ru@gneesteelgroup.com.

You Might Also Like

Send Message