409 Stainless Steel Bar
409 stainless steel is categorized as ferritic steel that is highly resistant to corrosion and high temperature with superior mechanical properties. It contains around 11% chromium, which is the minimum amount required to form the passive surface film that makes stainless steel resistant to corrosion.
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- Commodity name: 409 Stainless Steel Bar
409 stainless steel is categorized as ferritic steel that is highly resistant to corrosion and high temperature with superior mechanical properties. It contains around 11% chromium, which is the minimum amount required to form the passive surface film that makes stainless steel resistant to corrosion.
409 Stainless Steel Bar Description
409 stainless steel is distinguished from other types of stainless steel for its chemical composition. Iron, with large amounts of chromium and small amounts of carbon, manganese, silicon and nitrogen compose this material. Iron is the primary element of 409 stainless steel, providing its strength and stability. Chromium accounts for its corrosion resistance and helps form a protective oxide layer on the surface. Carbon helps increase the hardness and wear resistance. Manganese acts as a stabilizer to prevent excessive grain growth during heat treatment. Silicon enhances oxidation resistance while preventing scaling at high temperatures. Nitrogen improves mechanical properties such as tensile strength and yield strength. This unique combination of elements gives 409 stainless steel excellent thermal expansion capabilities, making it suitable for high-temperature applications without compromising its structural integrity or dimensional stability. Its chemical composition also provides good solderability, thus simplifying the manufacturing process.
Product ParametersProduct Name
409 Stainless Steel Bar
Type
Steel Bar
Outer Diameter
Round Bar
4mm-500mm
Hexagon Bar
18mm-57mm (11/16″ to 2-3/4″)
Square Bar
18mm-47mm (11/16″ to 1-3/4″)
Flat Steel
1/2 "to 10", Thickness: 2mm-150mm, Can provide customized
Length
1-6 meters, Length can be customized
Standard
ASTM, AISI, JIS, GB, DIN, EN, etc.
Surface
Black, 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
C
Si
Mn
Cr
Ni
S
P
≤ 0.08
≤1.0
≤1.0
10.5～11.75
≤ 0.5
≤ 0.045
≤ 0.045
Mechanical Properties
Tensile Strength Kb (MPa)
Yield Strength σ0.2 (MPa)
Elongation D5 (%)
Hardness
≥360
≥175
≥25
≤ 162HBW
Physical Performance
Density(g/cm³)
Modulus of Elasticity(Gpa)
Coefficient of Thermal Expansion(10-6/°C)
Coefficient of Thermal Conductivity(W/m*K)
Resistivity(NΩ.m)
7.80
200
11.0
25.8
600
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409 Stainless Steel Bar - Stock Warehouse
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409 Stainless Steel Bar - Product Inspection
Tensile Strength Testing Tensile Strength Testing Physical Performance Testing Chemical Composition Testing 
Inspection Hardness Testing Spectral Detection Mechanical Properties -
409 Stainless Steel Bar - Product Measurement
Outer Diameter Measurement Outer Diameter Measurement Outer Diameter Measurement Outer Diameter Measurement -
409 Stainless Steel Bar - Product Packaging
Jiuzhou Metal
Your reliable steel supplier
Jiuzhou Metal has 10+ warehouses with ready stock. The annual supply capacity is approximately 10 million tons. It has 10 years of experience in large-scale project supply. The customer reorder rate reaches 86%. We ensure quality and quantity, provide material certificates, and will refund if the products are not qualified, so please be assured the purchase.
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