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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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PRODUCT DESCRIPTION

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 Parameters

Product Name 403 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 ApplicationStainless 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

CSiMnCr
NiSP
≤ 0.15≤ 0.5≤1.011.5~13.0≥ 0.6≤ 0.03≤ 0.04

Mechanical Properties

Tensile Strength Kb (MPa)Yield Strength σ0.2 (MPa)Elongation D5 (%)Hardness
48529025≤ 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)
7.801909.921.5740


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