316 Stainless Steel Pipe – Marine-Grade Champion for the World’s Most Aggressive Environments
For more than six decades, 316 Stainless Steel Pipe has reigned as the undisputed champion of marine and chemical piping. The strategic addition of 2.0–3.0 % molybdenum transforms standard 18/8 stainless into a pitting- and crevice-corrosion-resistant powerhouse, outperforming 304 in chloride-rich seawater, aggressive chemical brines, and coastal atmospheres. Whether you are building a desalination plant, fabricating yacht exhaust systems, or installing pharmaceutical WFI lines, 316 Stainless Steel Pipe delivers the cleanliness, pressure integrity, and lifetime value that premium projects demand.
3 Inch 316 Stainless Steel Pipe Schedule 40 – Always in Stock, Ready for Immediate Delivery
Key Features & Benefits
- 2–3 % Mo for superior pitting & crevice corrosion resistance in chlorides
- Continuous service from –196 °C to 870 °C; excellent creep strength
- Hygienic, non-porous surface – meets FDA, USP Class VI, EU 1935/2004
- Bright annealed BA and 2B finishes for pharma and semiconductor ultra-high purity
- Fully austenitic – non-magnetic, even after heavy cold forming
- Weldable by TIG, laser, plasma; post-weld anneal optional for most services
- Full compliance – ASTM A312, A213, A269, A358, EN 10217-7, PED 2014/68/EU
Technical Specifications
Table 1 – Chemical Composition (ASTM A312)
| Element | 316 % | 316L % |
|---|---|---|
| Cr | 16.0–18.0 | 16.0–18.0 |
| Ni | 10.0–14.0 | 10.0–14.0 |
| Mo | 2.0–3.0 | 2.0–3.0 |
| C | ≤0.08 | ≤0.03 |
| Mn | ≤2.00 | ≤2.00 |
| Si | ≤1.00 | ≤1.00 |
| P | ≤0.045 | ≤0.045 |
| S | ≤0.030 | ≤0.030 |
| Fe | Balance | Balance |
Table 2 – Mechanical & Physical + Corrosion Data
| Property | 316 | 316L |
|---|---|---|
| Tensile Strength | ≥515 MPa | ≥485 MPa |
| Yield Strength (0.2 %) | ≥205 MPa | ≥170 MPa |
| Elongation in 2" | ≥40 % | ≥40 % |
| Hardness HRB | ≤95 | ≤95 |
| Density | 8.0 g/cm³ (0.289 lb/in³) | — |
| PREN* | 24 | 24 |
| Max Cl- ppm (ambient) | 1000 | 1000 |
*PREN = %Cr + 3.3×%Mo + 16×%N
Dimensions & Schedules
Focus on 3 inch 316 stainless steel pipe and 316 stainless steel pipe schedule 40 – always in stock.
| NPS | OD (mm) | Sch | WT (mm) | Weight (kg/m) |
|---|---|---|---|---|
| 3" | 88.9 | 10S | 2.11 | 4.51 |
| 3" | 88.9 | 40S | 5.49 | 11.29 |
| 3" | 88.9 | 80S | 7.62 | 15.27 |
| 3" | 88.9 | 160 | 11.13 | 21.35 |
| 3" | 88.9 | XXS | 15.24 | 27.68 |
Full 316 stainless steel pipe dimensions from 1/8" to 48" available on request.
Product Range & Market Info
As one of the largest 316 stainless steel pipe suppliers in China, we operate a 250 000 t/year mill with five continuous mandrel mills and eight multi-stand plug mills producing 304 seamless stainless steel pipe and 316 stainless steel round pipe from 6 mm to 630 mm OD. Our 200 000 m² facility keeps 45 000 t of ready stock, ensuring immediate availability for 316 stainless steel pipe exporters worldwide. Whether you need one bundle of 3 inch 316 stainless steel pipe schedule 40 or a full vessel of 20" × 12 m SAW pipe, our mill-direct 316 stainless steel pipe price list gives you the lowest cost. Contact our export team today for the most updated 316 stainless steel pipe price list and downloadable mill test certificates.
Specialty products include 316 stainless steel exhaust pipe for marine and automotive use – mandrel-bent, polished, and leak-tested under 0.3 bar air.
Main Applications
- Marine & offshore: seawater cooling, ballast lines, yacht handrails
- Pharmaceutical: WFI, clean steam, sterile vessels
- Food & beverage: CIP circuits, brewery tanks, dairy lines
- Chemical: chloride brines, sulfuric acid dilution, urea plant piping
- Oil & gas: subsea umbilicals, flare tips, riser clamps
- Heat exchangers: shell-and-tube, plate-frame gaskets
- Architecture: coastal curtain walls, swimming-pool canopies
- High-end exhaust: 316 stainless steel exhaust pipe for luxury yachts
Marine-Grade 316 Stainless Steel Exhaust Pipe – Superior Corrosion Resistance in Saltwater Environments
Why Choose Us – Mill-Direct Advantages
- PED 2014/68/EU, AD2000, ISO 9001 certified mill – EN 10204 3.1 & 3.2 MTC supplied
- 250 000 ton annual capacity – 5-day lead time for standard sizes
- Third-party inspection: SGS, TÜV, BV – accepted by European end-users
- Same-day cutting, beveling, polishing – lengths 3–12 m, tolerances ±0.2 mm
- Real-time 316 stainless steel pipe price list portal – updated daily at 08:00 CST
- Global export to 80+ countries – fumigation-free crates, vessel booking, insurance
Complete Range of 316 Stainless Steel Round Pipe – Mill-Direct Pricing & Full Traceability
Grade & Type Comparison Table
| Grade/Type | Mo % | Max Cl- ppm | Weld Post-Treat | Pressure Rating | Typical Use |
|---|---|---|---|---|---|
| 316 Seamless | 2–3 | 1000 | Not needed | High | Offshore |
| 316 Welded ERW | 2–3 | 1000 | Not needed | Medium | Structural |
| 304 Seamless | 0 | 200 | Not needed | High | General |
| 317L Seamless | 3–4 | 5000 | Not needed | High | Pulp bleach |
FAQ – 316 Stainless Steel Pipe
-
What is the current 316 stainless steel pipe price list?
Mill-direct FOB China USD 3.10–3.50/kg depending on nickel & moly surcharge; fixed for 48 h. -
What is the weight of 3 inch 316 stainless steel pipe schedule 40?
11.29 kg/m (ANSI B36.19); full 316 stainless steel pipe dimensions chart available on request. -
Difference between 316 and 316L?
316L has 0.03 % max carbon, reducing carbide precipitation during welding; strength slightly lower. -
Maximum temperature for 316 stainless steel exhaust pipe?
Intermittent 900 °C; continuous 870 °C with acceptable scaling rate. -
What is the minimum order quantity?
One cut length (≥1 m) for stock; full container (≈20 t) for mill-direct. -
How fast can you deliver 316 seamless stainless steel pipe?
7 days production + 3–5 days ocean freight to Asian ports; 10 days to EU/US warehouses. -
Which certificates accompany the shipment?
EN 10204 3.1/3.2 MTC, PED 2014/68/EU, AD2000, and third-party inspection (SGS/TÜV/BV). -
Do you supply polished or bent exhaust pipes?
Yes, mandrel-bent, mirror-polished, and leak-tested 316 stainless steel exhaust pipe up to 180° bend.
Call-to-Action
Stop paying trader margins. Contact the most trusted 316 stainless steel pipe supplier today for the latest 316 stainless steel pipe price list, immediate access to 3 inch 316 stainless steel pipe schedule 40 stock, and same-day cutting of any 316 stainless steel round pipe.