PRODUCT INFORMATION
304 Stainless Steel Sheet & Plate

MATERIAL SPECIFICATION

• Grade: 304 / UNS S30400 / EN 1.4301

• Standard: ASTM A240 / ASTM A480 / ASME SA240

• Form: Sheets (≤6mm thickness) & Plates (>6mm thickness)

• Surface Finish:

  • 2B: Smooth, bright cold-rolled finish (most common)

  • No. 4: Brushed/satin finish (architectural)

  • BA (Bright Annealed): Mirror-like reflective finish

  • #8 Mirror: High-polish reflective surface

  • HL: Hairline finish

  • Custom finishes available

KEY PROPERTIES

1. Composition (%):

   • Cr: 18.0–20.0 | Ni: 8.0–10.5 | C: ≤0.08 | Mn: ≤2.0 | Si: ≤1.0 | Fe: Balance

2. Mechanical Properties (Annealed Condition):

   Property	Value
   Tensile Strength	≥515 MPa (75,000 psi)
   Yield Strength	≥205 MPa (30,000 psi)
   Elongation	≥40% (in 50mm)
   Hardness (Rockwell)	70 HRB max

3. Corrosion Resistance:

   • Excellent resistance to:

     • Organic chemicals, food acids, freshwater, and atmospheric corrosion

     • Oxidation up to 870°C (1600°F)

   • Limitation: Susceptible to chloride pitting (avoid marine/coastal exposure)

4. Physical Properties:

   • Density: 8.0 g/cm³ | Melting Point: 1400–1450°C | Magnetic Response: Non-magnetic (may become slightly magnetic after forming)

DIMENSIONAL RANGES

ADVANTAGES

• Hygienic & FDA-Compliant: Ideal for food processing, pharmaceutical, and medical equipment.

• Ease of Fabrication: Excellent weldability (TIG/MIG/Laser), formability, and machinability.

• Aesthetic Versatility: Multiple finishes for architectural/decorative applications.

• Cost-Effectiveness: Most widely used austenitic stainless grade.

TYPICAL APPLICATIONS

• Food/Beverage: Tanks, conveyor systems, processing tables

• Architecture: Elevator panels, wall cladding, column covers

• Industrial: Chemical tanks, heat exchangers, machinery guards

• Automotive: Exhaust components, trim parts

• Consumer Goods: Sinks, cookware, appliance exteriors

QUALITY ASSURANCE

• Mill Test Reports (MTRs) per EN 10204 3.1

• Compliance: ASTM, ASME, ISO 9445 (tolerances)

• Surface: Free of scale, pits, and rolling defects

HANDLING & STORAGE

• Protect surfaces from scratches during transport (plastic film/papers recommended).

• Store off-ground in dry, covered areas to prevent moisture trapping.

• Passivation post-fabrication highly recommended to restore corrosion resistance.