316 Stainless Steel Pipe | Superior Corrosion Resistance for Demanding Environments
✓ Chloride Dominance: PREN ≥28, validated by 5,000+ hours in ASTM G48 Method D seawater testing.
✓ Acid Resistance: Withstands 20% sulfuric acid at 30°C (86°F) and 10% hydrochloric acid at 25°C (77°F).
✓ Hygienic Integrity: Ra ≤0.4μm electropolished finish complies with FDA CFR 175.300 and EHEDG guidelines.
✓ High-Temperature Stability: Operates continuously up to 800°C (1,472°F) with minimal oxidation.
316 Stainless Steel Pipe (ASTM A312/A358)
Engineered to excel in chloride-rich and acidic environments, 316 stainless steel pipe combines 18% chromium, 10% nickel, and 2-3% molybdenum for unmatched resistance to pitting, crevice corrosion, and stress corrosion cracking. Certified to ASTM A312/A358, ASME SA-312, and NACE MR0175/ISO 15156, this molybdenum-enhanced austenitic alloy is the gold standard for marine, chemical, and pharmaceutical applications where failure is not an option.
- Sizes: 1/8″ to 36″ OD (Seamless/Welded)
- Wall Thickness: 0.5mm to 50mm (Schedule 5S to XXS)
- Surface Finishes: Annealed, Pickled & Passivated, Electropolished (Ra ≤0.4μm)
- Mechanical Properties: Yield Strength ≥205 MPa | Tensile Strength ≥515 MPa | Elongation ≥40%
| Parameter Category | Value/Description |
|---|---|
| Material Standard | ASTM A312 / A358 / A269, EN 10217-7, JIS G3459, GB/T 12771 |
| Chemical Composition (%) | C ≤0.08, Cr 16–18, Ni 10–14, Mo 2.0–3.0, Mn ≤2.0, Si ≤1.0, P ≤0.045, S ≤0.03 |
| Tensile Strength (MPa) | ≥515 (Annealed) |
| Yield Strength (MPa) | ≥205 (Annealed) |
| Elongation (%) | ≥40 (in 50mm gauge length) |
| Hardness | Brinell (HB): ≤217; Rockwell (HRB): ≤95 (Annealed) |
| Density (g/cm³) | 8.03 |
| Melting Range (°C) | 1375–1400 |
| Thermal Conductivity (W/m·K) | 16.3 (at 20°C) |
| Thermal Expansion (10⁻⁶/°C) | 16.0 (20–100°C) |
| Electrical Resistivity (Ω·m) | 0.74 × 10⁻⁶ (at 20°C) |
| Elastic Modulus (GPa) | 193 |
| Magnetic Permeability | Non-magnetic (annealed condition) |
| Corrosion Resistance | Excellent resistance to chlorides (e.g., seawater, salt spray), sulfuric acid, phosphoric acid, and organic acids. Superior pitting/crevice corrosion resistance (PREN ≥26). |
| Heat Treatment | Annealing: 1010–1150°C followed by rapid cooling (water or air quench). |
| Surface Finishes | Seamless/Welded, Pickled, Bright Annealed, Polished (ID/OD), Bead Blasted. |
| Dimension Range | – OD: 6mm–1200mm – Wall Thickness: 0.5mm–50mm – Length: 1–12m (custom lengths available). |
| Standards & Schedules | ASTM (SCH 5S, 10S, 40S, 80S), EN (Light/Medium/Heavy Series), JIS (SGP, STS). |
| Key Applications | Marine equipment, chemical processing pipelines, pharmaceutical systems, coastal architecture, desalination plants, heat exchangers. |
316 Stainless Steel Pipe Applications
| Industry | Critical Uses | 316 Pipe Advantage |
|---|---|---|
| Marine Engineering | Seawater cooling systems, desalination plants | Resists 30,000 ppm chloride at 50°C (122°F). |
| Chemical Processing | HCl storage tanks, acid scrubbers | 0.02mm/year corrosion rate in 50% acetic acid. |
| Pharmaceutical | Bioreactor manifolds, clean steam lines | Complies with ISO 13485 for sterile processes. |
| Oil & Gas | Subsea pipelines, sour gas handling | Certified for H₂S environments per NACE MR0175. |
316 Stainless Steel Pipe Product Packaging
316 stainless steel pipes are engineered for critical applications in oil & gas, construction, and medical industries. To preserve surface integrity and dimensional accuracy during transit, we deploy advanced packaging systems and logistics strategies tailored for tubular products.
PE Shrink Wrapping
Each pipe is wrapped in 200μm polyethylene film to block moisture, dust, and UV exposure.
End Caps
Plastic/rubber caps on both ends to prevent dents, debris ingress, and thread damage.
Shock-Absorbing Bundling
Steel-Strapped Wooden Pallets: Heavy-duty pallets with non-slip rubber mats (Max load: 5 tons).
QR-coded tags
QR-coded tags linked to Mill Test Certificates (MTC), EN 10204 3.1 standards, and pipe batch history.
Why Choose Us
Where Precision Meets Partnership，25 years of focus on metal material science，Not only a supplier, but also your engineering consultant，Fast and zero compromise，Sustainable trust cycle。
Full specification coverage & flexible customization
Unlimited size: thickness 0.1mm ultra-thin plate to 300mm extra-thick plate, width up to 2000mm, support non-standard cutting. Various surface treatments: 2B, BA mirror, brushed (No.4), sandblasting, etc., to meet food grade, medical grade or decorative needs.
Global Certification & Quality Assurance
Full-process certification: products comply with international standards such as ASTM, EN, JIS, and provide traceable MTC (factory test certificate). Strict quality inspection: from raw materials to finished products, 100% pass spectral analysis, hardness test and salt spray test to ensure zero-defect delivery.
Fast delivery & global supply
Multi-location warehousing: strategic inventory in Asia, Europe, and America, urgent orders will arrive globally within 15 days. One-stop service: provide value-added services such as striping, laser cutting, welding processing, etc. to shorten customer production cycle.
Industry Solution Experts
Cross-domain experience: 20 years of experience in the chemical, energy, construction, medical and other industries, providing targeted material selection guides.
Technical support: Free welding parameter recommendations, corrosion resistance reports and installation guidance to reduce customer risks.
Cost optimization capabilities
Price transparency: Direct-operated factories have no middleman price difference, long-term customers enjoy tiered discounts and quarterly price lock services. Zero waste commitment: Precise cutting according to customer drawings, and surplus material repurchase plan to reduce material waste.
Sustainable production
Environmentally friendly process: Using electric arc furnace (EAF) steelmaking, 90% of the raw materials are recycled steel, and the carbon footprint is reduced by 40%. Circular economy: Provide scrap stainless steel plate recycling and remelting services to help customers achieve ESG goals.
316 Stainless Steel Pipe Shipping
Sea transport
40HQ container (loading capacity 28 tons) / bulk carrier (LCL minimum 1 ton)
Air transport
reach major airports around the world within 7 days (DDP/DAP terms)
Land transport
door-to-door within China (qualification for dangerous goods transportation)
Our Services
We guarantee global door-to-door delivery within 7–15 business days via partnerships with DHL, Maersk, and UPS.
FAQ
Q1: How does 316 differ from 316L pipes?
A: 316L’s 0.03% max carbon prevents sensitization in welded thick walls (>8mm). Use standard 316 for non-welded or high-strength applications.
Q2: What surface finish prevents biofilm buildup?
A: Electropolished (Ra ≤0.4μm) + Passivated finish reduces bacterial adhesion by 80% (per EHEDG).
Q3: Are pipes compliant with offshore standards?
Yes, all pipes include:
- NACE MR0175/ISO 15156-3 certification
- DNVGL-OS-F101 for subsea use
- EN 10204 3.1 MTC with PMI
Q4: What’s the lead time for custom-sized pipes?
- Stock sizes: 7 days FOB
- Custom OD/wall thickness: 21 days (min. 5 ton)
- Medical-grade orders: 30 days with cleanroom documentation.
Q5: How to address crevice corrosion in flanged joints?
A: Use PTFE-coated gaskets + cathodic protection – reduces risk by 95% vs standard setups.
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