309/309S Stainless Steel Bar
Product Description
309 stainless steel is a stainless steel material featured by excellent corrosion resistance and high temperature performance. 309 stainless steel bars are widely used as manufacturing parts in aviation, chemical industry, petroleum, food processing fields

309 stainless steel bar is made of an austenitic stainless steel containing substantial chromium and nickel content. 309 stainless steel bars are highly resistant to various corrosive media, including acid, alkali, salt and other solutions, as well as organic solvents. They can still show outstanding corrosion resistance at high temperatures and can work stably for a long time in high-temperature environments. So high-temperature equipment in aviation, chemical industry is where they are often adopted. 309 stainless steel bars can be formed and welded through various processing methods due to its outstanding processing performance. Lastly, 309 stainless steel bars are non-magnetic and suitable as manufacturing parts and components without magnetic requirements.


Product Parameters

Product Name                           309/309S Stainless Steel Bar
TypeSteel Bar
Outer DiameterRound Bar4mm-500mm
Hexagon Bar18mm-57mm (11/16″ to 2-3/4″)
Square Bar18mm-47mm (11/16″ to 1-3/4″)
Flat Steel1/2 "to 10", Thickness: 2mm-150mm, Can provide customized
Length1-6 meters, Length can be customized
StandardASTM, AISI, JIS, GB, DIN, EN, etc.
SurfaceBlack, Bright Polished, Rough Turning, Mattness Surface Treatment, No. 4. BA, etc.
Scope of Application

Stainless steel bars are used in a variety of industries such as shipbuilding,Defense, Automotive,

 Textiles, Paper and pulp, Manufacturing, Cement,Heavy earthmoving equipment and construction, etc.

 

Chemical Composition

CSiMnCrNiSP
≤ 0.08≤ 0.75≤ 2.022.0~24.012.0~15.0≤ 0.03≤ 0.045

 

Mechanical Properties

Tensile Strength Kb (MPa)Yield Strength σ0.2 (MPa)Elongation D5 (%)Hardness
≥515≥205≥35≤ 217HB

 

Physical Performance

Density(g/cm³)Modulus of Elasticity(Gpa)Coefficient of Thermal Expansion(10-6/°C)Coefficient of Thermal Conductivity(W/m*K)Resistivity(ΜΩ. cm)
7.9820014.915.678


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