403 Stainless Steel Bar
403 stainless steel is sorted as a martensitic stainless steel with high chromium and low carbon content. It is also known as UNS S40300 and is commonly used in applications requiring high strength and corrosion resistance.
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- Commodity name: 403 Stainless Steel Bar
403 stainless steel is sorted as a martensitic stainless steel with high chromium and low carbon content. It is also known as UNS S40300 and is commonly used in applications requiring high strength and corrosion resistance.
403 Stainless Steel Bar Description
403 stainless steel bars are suitable for use in harsh environments given its good corrosion resistance. Additionally, they also have good mechanical properties, including high hardness, toughness and wear resistance. One thing to note is such bars are not as resistant to corrosion as other stainless steels such as 304 or 316 and may not be suitable for use in extremely corrosive environments. The Nickel element enables 403 stainless steel to obtain a complete austenite structure, providing the steel with higher strength, plasticity and toughness, as well as excellent hot and cold workability, cold formability, weldability. Additionally, it improves the thermodynamic stability of 403 stainless steel.
Product ParametersProduct Name
403 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
≤ 0.15
≤ 0.5
≤1.0
11.5～13.0
≥ 0.6
≤ 0.03
≤ 0.04
Mechanical Properties
Tensile Strength Kb (MPa)
Yield Strength σ0.2 (MPa)
Elongation D5 (%)
Hardness
≥485
≥290
≥25
≤ 98HRB
Physical Performance
Density(g/cm³)
Modulus of Elasticity(Gpa)
Coefficient of Thermal Expansion(10-6/°C)
Coefficient of Thermal Conductivity(W/m*K)
Resistivity(10-6 Ω.m)
7.80
190
9.9
21.5
740
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403 Stainless Steel Bar - Stock Warehouse
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403 Stainless Steel Bar - PRODUCT INSPECTION
Tensile Strength Testing Tensile Strength Testing Physical Performance Testing Chemical Composition Testing 
Inspection Hardness Testing Spectral Detection Mechanical Properties -
403 Stainless Steel Bar - Product Measurement
Outer Diameter Measurement Outer Diameter Measurement Outer Diameter Measurement Outer Diameter Measurement -
403 Stainless Steel Bar - Product Packaging
Jiuzhou Metal
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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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