JIS G4304 SUS430/BA Stainless steel

  1. What is JIS G4304 SUS430BA Stainless steel coil?

    JIS G4304 SUS430 is the Japanese Industrial Standards (JIS) designation for a grade of stainless steel. “SUS” stands for “Steel Use Stainless.” The 430 grade is a ferritic, non-hardenable stainless steel that contains chromium but no nickel. It’s known for good corrosion resistance and formability, combined with useful mechanical properties. SUS430 is used in a variety of applications, such as kitchen utensils, interior architectural features, and appliance parts
    Below is a table that outlines the chemical composition and key properties of SUS430 stainless steel:

2. BA Finish (Bright Annealed): “BA” stands for “Bright Annealed,” a specific type of finish applied to stainless steel. During the BA process, the steel is annealed in a controlled atmosphere to retain a highly reflective finish. This process smoothens the surface and produces a bright, reflective finish similar to a mirror, but not quite as reflective as a true mirror finish. The BA finish improves the aesthetics and makes the surface easier to clean, which is why it’s often used in decorative applications.

3. .JIS G4304 SUS430 BA Chemical and property

Property Specification
Grade JIS G4304 SUS 430BA
Standard JIS (Japanese Industrial Standard)
Type Ferritic Stainless Steel
Carbon (C) Max 0.12%
Silicon (Si) Max 1.00%
Manganese (Mn) Max 1.00%
Phosphorus (P) Max 0.040%
Sulfur (S) Max 0.030%
Chromium (Cr) 16.00 – 18.00%
Nickel (Ni) Max0.6%
Mo 2-3%
Mechanical Properties
Tensile Strength Approx. 450 – 600 MPa
Yield Strength Approx. 205 MPa
Elongation Approx. 22%
Hardness Max 183 HB
Physical Properties
Density 7.75 g/cm³
Melting Point Approx. 1425 – 1510°C
Thermal Conductivity At 100°C: 26.1 W/m·K
Electrical Resistivity Approx. 0.60 µΩ·m


What thickness and sizes we can export?

4. We produce and export SUS 430BA Stainless steel plate and stainless steel coils too. The following are our usual sizes.

S SUS 430BA thickness 0.25mm to 3mm
Cutted width Range 300mm to 1250mm
Length: Coil situation and steel plates situation

5. SUS430 BA Applications:

  • Used in applications where moderate corrosion resistance is required, such as interior architectural features, kitchen utensils, automotive trim, and appliance parts.

It’s important to note that the mechanical properties can vay depending on the form and size of the steel product and the specific conditions of processing and fabrication.

6. One Solution of Stainless steel coil or sheet  430BA:

A. Trade item: EXW, FOB, CFR AND CIF
B. Production time: 5-15days
C. Payment items: TT or LC.
D. Min order: 1PCS
E. Quality promising: Third party or PMI testing.
F. Price: Competitive Price.
G. Origin: China First Class mill.
Faster shipment, Competitive price.

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