density of SUS 304 Stainless Steel Round Pipe
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What is SUS 304 stainless steel?
SUS 304 is the Japanese standard equivalent of AISI 304, an austenitic stainless steel known for excellent corrosion resistance and formability.
What are the properties of SUS304 stainless steel pipe?
SUS304 Cold Roll stainless steel pipe is a widely used austenitic stainless steel known for its excellent corrosion resistance, good formability, and weldability. It contains approximately 18% chromium and 8% nickel, which help it resist oxidation and most mild chemical environments. SUS304 offers high ductility, toughness even at low temperatures, and is non-magnetic in the annealed condition. Its typical applications include kitchen equipment, piping, pressure vessels, and architectural components.
What Is the Density of SUS 304 Stainless Steel Round Pipe?
The density of SUS 304 stainless steel round pipe is approximately 7.93 g/cm³ (or 7930 kg/m³). This is a key physical property for buyers, engineers, and fabricators when calculating pipe weight, load-bearing capacity, or material costs.

Why is density important for SUS 304 round tubes?
Knowing density can help estimate the shipping weight and logistics costs of stainless steel tubes and design structures that are critical to load bearing.
Is the density of SUS 304 different from AISI 304?
No, both have the same chemical composition and physical properties. The density remains ~7.93 g/cm³.


SUS 304 stainless seamless pipe Weight Calculation Formula
Weight (kg/m) = (OD - WT) × WT × 0.02491
Where:
OD = Outer Diameter (mm)
WT = Wall Thickness (mm)
0.02491 is derived from the density of 7.93 g/cm³
Example:
For a SUS 304 pipe with OD = 50mm and WT = 2mm:
Weight = (50 - 2) × 2 × 0.02491 ≈ 2.39 kg/m
Please refer to the size table below
Standard Sizes of SS 304 Stainless Steel Round Pipes
| Outer Diameter (OD, mm) | Wall Thickness (WT, mm) | Theoretical Weight (kg/m) | Schedule/Remark |
|---|---|---|---|
| 6.0 | 1.0 | 0.141 | Thin wall |
| 9.5 | 1.0 | 0.236 | Instrument tubing |
| 12.7 | 1.2 | 0.366 | 1/2" OD pipe |
| 19.05 | 1.5 | 0.681 | 3/4" OD pipe |
| 25.4 | 1.5 | 0.921 | 1" OD pipe |
| 31.8 | 2.0 | 1.518 | 1-1/4" OD pipe |
| 38.1 | 2.0 | 1.842 | 1-1/2" OD pipe |
| 50.8 | 2.0 | 2.463 | 2" OD pipe |
| 63.5 | 2.5 | 3.839 | 2-1/2" OD pipe |
| 76.2 | 3.0 | 5.487 | 3" OD pipe |
| 88.9 | 3.0 | 6.451 | 3-1/2" OD pipe |
| 101.6 | 3.0 | 7.410 | 4" OD pipe |
| 114.3 | 3.0 | 8.363 | 4-1/2" OD pipe |
| 127.0 | 3.5 | 10.978 | Custom/industrial |
| 141.3 | 3.5 | 12.241 | 5-1/2" OD pipe |
| 168.3 | 4.0 | 16.450 | 6" SCH 40 |
| 219.1 | 6.0 | 31.458 | 8" SCH 40 (heavier wall) |
If you have any questions, please contact us and we have professional engineers who can answer your questions in time!
If you are looking for SUS 304 Stainless Steel Round Pipe, welcome to contact Gnee!
As a professional stainless steel material supplier, Gnee provides high-quality SUS 304 stainless steel round pipes to global customers, supports cut-to-length processing, customized packaging and international logistics distribution, and widely serves the chemical, food equipment, building decoration, heat exchanger and other industries.
Gnee can provide you with:
✅ Full-specification stock: OD 6mm–219mm, wall thickness 0.5mm–6mm, accept customization
✅ One-stop service: Including laser cutting, bending, polishing, welding and other deep processing services
✅ International standard certification: Strictly implement ASTM A312 / JIS G3459 / EN 10216-5 and other standards
✅ Third-party testing support: Provide SGS, BV, TÜV and other inspection reports
✅ Rich export experience: Fast and stable logistics distribution, covering Southeast Asia, the Middle East, Europe, and the Americas
Customer Cases
Thai food processing plant: Purchase our SUS 304 welded polished round tube for clean pipe system, and the customer highly recognizes the quality of the weld and surface brightness.
UAE construction company: For outdoor handrail system, specify 304 brushed pipe, successfully delivered 5,000 meters of project, meeting its weather resistance and aesthetic requirements.


Contact Gnee now to get SUS 304 round tube quotation and sample support!









