Steel Density Reference — g/cm³ & kg/m³
Carbon steel is typically 7.85 g/cm³ (7850 kg/m³). Stainless grades range ~7.9–8.0 g/cm³. Always match density to the material in your mill certificate or calculator setting.
Reference values
- Carbon steel
- 7.85 g/cm³ = 7850 kg/m³
- SS304 (typical)
- ≈ 8.0 g/cm³ = 8000 kg/m³
- Formula link
- Weight = volume × density
Common values
Carbon / mild steel
Use 7.85 g/cm³ (7850 kg/m³) as default.
Stainless 304
≈ 8.0 g/cm³ (8000 kg/m³) — adjust in calculator.
Aluminum (comparison)
≈ 2.7 g/cm³ — not steel, but often mixed on site.
Apply in calculator
Change ρ in any weight tool before quoting.
Why it matters
10 m³ at 7850 vs 8000 kg/m³ differs by 1.5 tonnes — material choice affects logistics.
Steel density reference (typical values)
| Section | Size | kg/m | Standard |
|---|---|---|---|
| Carbon | Mild / structural | 7.85 g/cm³ | 7850 kg/m³ |
| Stainless | 304 | 8.0 g/cm³ | 8000 kg/m³ |
| Stainless | 316 | 8.0 g/cm³ | 8000 kg/m³ |
FAQ
One density for all steel?
No — alloy and heat treatment shift density slightly; use project spec.
Catalog kg/m vs density?
Catalog kg/m is already theoretical for a standard; density helps custom sizes.