316 Stainless Steel Tube – The Marine-Grade Gold Standard for Chloride-Rich & Hygienic Applications
When your piping system faces chlorides, seawater, or aggressive chemicals, 316 Stainless Steel Tube is the only logical choice. The deliberate addition of 2–3 % molybdenum transforms standard 18/8 stainless into a pitting- and crevice-corrosion-resistant alloy, outperforming 304 in marine, pharmaceutical, and food-processing environments. Whether you need seamless hydraulic lines for an offshore platform, sanitary dairy tubing, or architectural handrails on a coastal promenade, 316 stainless steel tube delivers the hygiene, pressure integrity, and lifetime value that global industries demand.
Caption: 316 Stainless Steel Tube – Seamless & Welded, Ready Stock from World-Class 316 Stainless Steel Tube ManufacturersKey Features & Benefits
- 2–3 % Mo for superior pitting & crevice corrosion resistance in chlorides
- PREN ≥24 – 60 % higher than 304 (PREN 19)
- Full non-magnetic properties – even after severe cold work
- Excellent toughness down to –196 °C – no ductile-to-brittle transition
- Hygienic, non-porous surface – meets FDA, NSF/ANSI 61, EU 1935/2004, 3A sanitary standards
- Wide finish range – 2B, BA, No.4, 600 grit mirror, and 304 ba stainless steel plates equivalent
- Full weldability – TIG, laser, plasma; no post-weld anneal required for most services
- NACE MR0175/ISO 15156 compliant – sour-service approved [^32^]
Technical Specifications
Table 1 – Chemical Composition (ASTM A240)
| Element | 316 % | 316L % | 304 % |
|---|---|---|---|
| Cr | 16.0–18.0 | 16.0–18.0 | 18.0–20.0 |
| Ni | 10.0–14.0 | 10.0–14.0 | 8.0–10.5 |
| Mo | 2.0–3.0 | 2.0–3.0 | — |
| C (316) | ≤0.08 | ≤0.03 | ≤0.08 |
| Mn | ≤2.00 | ≤2.00 | ≤2.00 |
| Fe | Balance | Balance | Balance |
Table 2 – Mechanical & Physical + PREN Value
| Property | 316 Tube | 316L Tube |
|---|---|---|
| Tensile Strength | ≥515 MPa (75 ksi) | ≥485 MPa (70 ksi) |
| Yield Strength (0.2 %) | ≥205 MPa (30 ksi) | ≥170 MPa (25 ksi) |
| Elongation in 2" | ≥40 % | ≥40 % |
| Hardness HRB | ≤95 | ≤95 |
| Density | 8.0 g/cm³ (0.289 lb/in³) | 8.0 g/cm³ |
| PREN* | ≥24 | ≥24 |
*PREN = %Cr + 3.3×%Mo + 16×%N
Size & Pressure Rating Table
Round Tube
| OD (mm) | Sch | WT (mm) | 20 °C (bar) | 500 °C (bar) | Standard |
|---|---|---|---|---|---|
| 6 | 10S | 1.0 | 330 | 165 | ASTM A269 |
| 25 | 40S | 2.8 | 220 | 110 | ASTM A312 |
| 89 | 80S | 7.6 | 180 | 90 | ASTM A312 |
| 219 | 40S | 8.2 | 95 | 48 | ASTM A358 |
Square Tube Sizes
| Size (mm) | WT (mm) | 20 °C (bar) | Standard |
|---|---|---|---|
| 20×20 | 1.5 | 210 | ASTM A554 |
| 100×100 | 3.0 | 140 | ASTM A554 |
| 300×300 | 10.0 | 90 | ASTM A554 |
Full 316 stainless steel tube pressure rating chart available on request.
Product Range & Market Info
As one of the world’s largest 316 stainless steel tube manufacturers and most reliable 316 stainless steel tube suppliers (with UK/Europe warehouse for 316 stainless steel tube suppliers uk customers), we operate a 300 000 t/year mill with five continuous mandrel mills and eight ERW lines dedicated to 316 stainless steel tube production. Our 250 000 m² facility keeps 60 000 t of ready 316 stainless steel tube for sale in Shanghai and Houston, ensuring immediate availability for global distributors. Whether you need one coil of 25.4 mm × 2 mm or a full vessel of 219 mm × 8 mm, our mill-direct pricing and ABS/DNV-approved quality give you the competitive edge. Contact our export team today for the most updated quotation and downloadable 3.1 MTC.
Specialty products include complete 316 stainless steel square tube sizes – 20×20 mm to 300×300 mm, wall 1.5–20 mm, manufactured under ASTM A554.
Caption: Complete Range of 316 Stainless Steel Square Tube Sizes – Full 316 Stainless Steel Tube Pressure Rating Data ProvidedMain Applications
- Marine & yacht piping – seawater cooling, ballast lines
- Offshore platforms – subsea umbilicals, hydraulic control lines
- Pharmaceutical & dairy lines – WFI, clean steam, sterile vessels
- Food & beverage – CIP circuits, brewery tanks, dairy pasteurizers
- Heat exchangers – shell-and-tube, plate-frame gaskets
- Architectural handrails – coastal curtain walls, marina boardwalks
- Chemical processing – chloride brines, hypochlorite piping
- Desalination – RO membrane housings, high-pressure piping
- Medical equipment – sterilisation baskets, instrument housings
- 316 stainless steel tube for sale – global export to 80+ countries
Caption: UK & Global Supply – Trusted 316 Stainless Steel Tube Suppliers & 316 Stainless Steel Tube Suppliers UKWhy Choose Us – Marine & Hygienic Specialist
- PED 2014/68/EU, ABS/DNV/LR marine certified – accepted by major oil companies
- FDA/3A sanitary approved – meets US and EU food-contact regulations
- EN 10204 3.1 & 3.2 MTC supplied – full heat traceability
- 300 000 tons annual capacity – 5-day lead time for standard sizes
- UK local stock + same-day dispatch – 316 stainless steel tube suppliers uk warehouse
- Bright annealing + 100 % eddy current testing – mirror finish, defect-free
Grade Comparison Table: 316 vs 316L vs 304 vs 317L vs Duplex 2205
| Grade | Cr % | Ni % | Mo % | PREN | Yield MPa | Relative Cost | Best Use |
|---|---|---|---|---|---|---|---|
| 316 | 16–18 | 10–14 | 2–3 | 24 | ≥205 | 1.0× (base) | Marine general |
| 316L | 16–18 | 10–14 | 2–3 | 24 | ≥170 | 1.02× | Welded chloride |
| 304 | 18–20 | 8–10.5 | 0 | 19 | ≥205 | 0.75× | General service |
| 317L | 18–20 | 11–15 | 3–4 | 29 | ≥205 | 1.3× | Pulp bleach |
| 2205 | 22–23 | 4.5–6.5 | 3–3.5 | 35 | ≥450 | 1.4× | High-strength chloride |
FAQ – 316 Stainless Steel Tube
-
What is today’s 316 stainless steel tube price?
Mill-direct FOB China USD 2.90–3.30/kg depending on nickel and moly surcharge; fixed for 48 h. -
What is the 316 stainless steel tube pressure rating for 2" Sch 80S?
180 bar at 20 °C, 90 bar at 500 °C – full chart available on request. -
Square tube stock status?
5 000 t ready inventory; 316 stainless steel square tube sizes from 20×20 mm to 300×300 mm. -
UK delivery time?
Same-day dispatch from 316 stainless steel tube suppliers uk warehouse; 24–48 h to mainland UK. -
Difference seamless vs welded?
Seamless offers higher pressure rating and no weld seam; welded is economical for low-pressure service. -
Minimum order quantity?
One coil or bundle for stock sizes; full container (≈25 t) for mill-direct custom sizes. -
Which certificates accompany the shipment?
EN 10204 3.1/3.2 MTC, NACE MR0175, ABS/DNV, FDA, and third-party inspection (SGS/TÜV/BV). -
Do you export worldwide?
Yes, to 80+ countries including UK, Germany, Norway, UAE, USA, and Australia.
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Stop paying trader margins. Contact the most trusted 316 stainless steel tube manufacturers today for the latest price, immediate access to massive 316 stainless steel tube for sale stock, and same-day dispatch from our 316 stainless steel tube suppliers uk warehouse.