sa 240 gr 304 material density

Clarifying SA 240 GR 304 Material Density

The density of SA 240 GR 304 stainless steel is 8.0 g/cm³ (or 8000 kg/m³), as specified in ASME SA 240, ASTM A240, and industry standards for austenitic stainless steels like 304. The value of 7.93 g/cm³ you mentioned may stem from:

• Variations in minor alloying elements or measurement tolerances in specific batches.
• Confusion with ferritic grades (e.g., SA 240 GR 430, ~7.7-7.8 g/cm³) or other alloys.
• Older or non-standard references; however, 8.00 g/cm³ is the accepted value for SA 240 GR 304.

This density, combined with SA 240 GR 304’s SS 304 non magnetic properties, makes it ideal for lightweight yet durable applications like plat stainless 304 and SA 240 GR 304 pipe. Gangsteel’s sa 240 gr 304 plates consistently meet this standard.

Significance of SA 240 GR 304 Density

• Weight Calculations: At 8.00 g/cm³, a 1m x 1m x 3mm (plat SS 304 3mm) plate weighs ~24 kg, critical for structural design and cost estimation.
• Design Efficiency: The density supports lightweight designs for pressure vessels, tanks, and architectural panels.
• Comparison: Similar to SA 240 GR 304L and SA 240 GR 316L (both 8.00 g/cm³), but higher than ferritic SA 240 GR 409 (7.75 g/cm³) or aluminum (~2.7 g/cm³).

For low-carbon welding applications, explore our sa 240 gr 304l.

Chemical Composition Supporting Density

The density of SA 240 GR 304 is influenced by its composition:

• Iron (Fe): Primary contributor to the 8.00 g/cm³ density, similar to other 300-series grades.
• Chromium and Nickel: Ensure corrosion resistance and SS 304 non magnetic properties without significantly altering density.

For detailed specs, refer to our SS 304 data sheet.

Other Key Properties

• Mechanical Properties(annealed, 8-75 mm thick):
  • Tensile Strength: ≥515 MPa
  • Yield Strength (0.2% Offset): ≥205 MPa
  • Elongation: ≥40%
  • Hardness: ≤201 HB
• Corrosion Resistance: Excellent in atmospheric, freshwater, and mild acid environments, outperforming SS204 vs SS 304. Less resistant to chloride pitting than SA 240 GR 316L; see sa 240 gr 316l.
• Weldability: Good with ER308 fillers, though SA 240 GR 304L is preferred for critical welds. For high-temperature applications, explore sa 240 gr 304h.
• Physical Properties:
  • Melting Point: ~1400-1450°C
  • Thermal Conductivity: 16.2 W/m·K
  • Coefficient of Thermal Expansion: 17.2 × 10⁻⁶/K

Applications of SA 240 GR 304

The 8.00 g/cm³ density and properties of SA 240 GR 304 support its use in:

• Food Processing: Tanks and equipment (hygienic, non-tarnishing).
• Chemical Industry: Vessels and SA 240 GR 304 pipe for mild corrosives.
• Architecture: Structural panels like plate 2 mm SUS 304.
• Automotive: Components requiring corrosion resistance.

For harsher environments, consider sa 240 gr 317l.

Why Choose Gangsteel?

Gangsteel supplies certified SA 240 GR 304 plates with a consistent density of 8.00 g/cm³ and competitive SS 304 plate price (~$1.60/kg FOB, MOQ 1 ton). Our inventory includes SA 240 TP 304/304L dual-certified plates and custom sizes like plat SS 304 3mm. For quotes or to learn what is SA 304, visit our astm a 240 stainless plate page or email admin@gangsteel.com.