304 Stainless Steel Round Bar

Grade: 304/UNS S30400

Size:

Cold drawn: φ4mm-φ60mm

Hot Rolled: φ16mm-φ230mm

Forged: φ230mm-φ1200mm

Surface Finish: Black Annealed, Polished Bright, Centerless Grinding

Diameter Tolerance: H9, H11, h9, h11 etc

304 stainless steel is one of the most widely used austenitic stainless steels in the world. ”
“It contains approximately 18% chromium and 8% nickel, providing an excellent balance of corrosion resistance, ”
“mechanical properties, formability, and weldability. The chromium content forms a passive oxide layer that protects ”
“the material from general corrosion, while nickel improves toughness, ductility, and structural stability.

As a non-magnetic austenitic stainless steel in the annealed condition, 304 offers excellent fabrication characteristics, ”
“including deep drawing, bending, machining, and welding performance. It performs well in a wide range of atmospheric and ”
“chemical environments and is suitable for both industrial and consumer applications.

Compared with carbon steels and lower alloy stainless steels, 304 provides superior corrosion resistance and long service life. ”
“However, it has limited resistance to chloride-induced pitting and crevice corrosion compared with molybdenum-containing grades ”
“such as 316 stainless steel.

304 stainless steel is widely used in food processing equipment, architectural applications, chemical processing equipment, ”
“heat exchangers, pressure vessels, piping systems, and general industrial components. It is available in various product forms ”
“including stainless steel bars, plates, sheets, tubes, and fittings.

Standard Designations

Standard Designation
ASTM / UNS Type 304 / UNS S30400
JIS SUS304
EN 1.4301 / X5CrNi18-10

Bar Production Standards

Standard Description
ASTM A276/A276M Stainless Steel Bars and Shapes
ASTM A479/A479M Stainless Steel Bars and Shapes for Pressure Vessel Service
ASTM A484/A484M General Requirements for Stainless Steel Bars
JIS G4303 Stainless Steel Bars
EN 10088-3 Stainless Steel Bars and Rods

Chemical Composition (Typical wt.%)

Element Value
Carbon (C) ≤0.08
Chromium (Cr) 18.00-20.00
Nickel (Ni) 8.00-10.50
Manganese (Mn) ≤2.00
Silicon (Si) ≤1.00
Phosphorus (P) ≤0.045
Sulfur (S) ≤0.030
Iron (Fe) Balance

Mechanical Properties (Annealed Condition)

Property Value
Tensile Strength ≥515 MPa
Yield Strength (0.2% Offset) ≥205 MPa
Elongation ≥40%
Hardness (Brinell) ≤201 HB
Hardness (Rockwell B) ≤92 HRB
Density Approx. 8.0 g/cm³
Modulus of Elasticity Approx. 193 GPa
  • Food processing equipment
  • Chemical processing equipment
  • Architectural structures and decorative applications
  • Heat exchangers
  • Pressure vessels
  • Piping systems
  • Kitchen equipment
  • Pharmaceutical equipment
  • Marine and industrial components

304 stainless steel is one of the most widely used austenitic stainless steels in the world. ”
“It contains approximately 18% chromium and 8% nickel, providing an excellent balance of corrosion resistance, ”
“mechanical properties, formability, and weldability. The chromium content forms a passive oxide layer that protects ”
“the material from general corrosion, while nickel improves toughness, ductility, and structural stability.

As a non-magnetic austenitic stainless steel in the annealed condition, 304 offers excellent fabrication characteristics, ”
“including deep drawing, bending, machining, and welding performance. It performs well in a wide range of atmospheric and ”
“chemical environments and is suitable for both industrial and consumer applications.

Compared with carbon steels and lower alloy stainless steels, 304 provides superior corrosion resistance and long service life. ”
“However, it has limited resistance to chloride-induced pitting and crevice corrosion compared with molybdenum-containing grades ”
“such as 316 stainless steel.

304 stainless steel is widely used in food processing equipment, architectural applications, chemical processing equipment, ”
“heat exchangers, pressure vessels, piping systems, and general industrial components. It is available in various product forms ”
“including stainless steel bars, plates, sheets, tubes, and fittings.

Standard Designations

Standard Designation
ASTM / UNS Type 304 / UNS S30400
JIS SUS304
EN 1.4301 / X5CrNi18-10

Bar Production Standards

Standard Description
ASTM A276/A276M Stainless Steel Bars and Shapes
ASTM A479/A479M Stainless Steel Bars and Shapes for Pressure Vessel Service
ASTM A484/A484M General Requirements for Stainless Steel Bars
JIS G4303 Stainless Steel Bars
EN 10088-3 Stainless Steel Bars and Rods

Chemical Composition (Typical wt.%)

Element Value
Carbon (C) ≤0.08
Chromium (Cr) 18.00-20.00
Nickel (Ni) 8.00-10.50
Manganese (Mn) ≤2.00
Silicon (Si) ≤1.00
Phosphorus (P) ≤0.045
Sulfur (S) ≤0.030
Iron (Fe) Balance

Mechanical Properties (Annealed Condition)

Property Value
Tensile Strength ≥515 MPa
Yield Strength (0.2% Offset) ≥205 MPa
Elongation ≥40%
Hardness (Brinell) ≤201 HB
Hardness (Rockwell B) ≤92 HRB
Density Approx. 8.0 g/cm³
Modulus of Elasticity Approx. 193 GPa
  • Food processing equipment
  • Chemical processing equipment
  • Architectural structures and decorative applications
  • Heat exchangers
  • Pressure vessels
  • Piping systems
  • Kitchen equipment
  • Pharmaceutical equipment
  • Marine and industrial components

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