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Quality 316 316L Stainless Steel Seamless Pipe Austenitic Nickel Chromium Molybdenum Alloy Steel factory
Quality 316 316L Stainless Steel Seamless Pipe Austenitic Nickel Chromium Molybdenum Alloy Steel factory
Quality 316 316L Stainless Steel Seamless Pipe Austenitic Nickel Chromium Molybdenum Alloy Steel factory
Quality 316 316L Stainless Steel Seamless Pipe Austenitic Nickel Chromium Molybdenum Alloy Steel factory

316 316L Stainless Steel Seamless Pipe Austenitic Nickel Chromium Molybdenum Alloy Steel

Basic Properties
Place of Origin: MADE IN CHAINA
Brand Name: Baosteel，TISCO
Certification: EN 10204 Type 3.1 / 3.2 available
Model Number: 201 / 202 / 301 / 302 / 303 / 304 / 304L / 305 / 309S / 310S / 316 / 316L / 317 / 317L / 321 / 347 / 409L / 410 / 420 / 430 / 440C / 2205 / 2507
Trading Properties
Minimum Order Quantity: 100kg
Price: Negotiable (Request a Quote)
Payment Terms: T/T，D/P，D/A，Western Union，PayPal
Supply Ability: 10000tons
Tags

Molybdenum Alloy Stainless Steel Pipe

Stainless Steel Pipe Chloride Resistance

316L Stainless Steel Seamless Pipe
Product Summary
316/316L Seamless Pipe - ASTM A312 TP316L Marine-grade Stainless Steel Pipe 316/316L stainless steel seamless pipe is an austenitic chromium-nickel-molybdenum alloy pipe known for its superior corrosion resistance, especially against chlorides and acidic environments. 316L is the low-carbon version ...

Product Details

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316L Stainless Steel Seamless Pipe

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316 Stainless Steel Seamless Pipe

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Austenitic Nickel Chromium Molybdenum Alloy Steel
Custom Cycle: 7-15 Days
Size: 10mm-120mm
Productname: Stainless Steel Pipe
Lenght: 1-12m, Or As Requirement
Width: 20-150mm
Loading Port: Shanghai Port
Specification: Customized
Material Grade: 300 Series
Processing Service: Cutting
Size Range: 139mm-1600mm
Product Description
316/316L Seamless Pipe - ASTM A312 TP316L Marine-grade Stainless Steel Pipe
316/316L stainless steel seamless pipe is an austenitic chromium-nickel-molybdenum alloy pipe known for its superior corrosion resistance, especially against chlorides and acidic environments.
316L is the low-carbon version of 316, offering better weldability and resistance to intergranular corrosion after welding. Both grades are widely used in marine, chemical, and pharmaceutical applications.
Key Advantage: Excellent resistance to pitting and crevice corrosion in chloride environments.
Specifications
Parameter Available Options
Material Grade 316, 316L (1.4401, 1.4404)
Standard ASTM A312 / ASME SA312 / EN 10216-5 / JIS G3459
Outer Diameter (OD) 6.0mm - 610mm (1/8" - 24")
Wall Thickness (WT) 0.5mm - 40mm (Schedule 5S - XXS)
Length 6m / 12m / custom cut-to-length
Surface Finish Annealed & Pickled / Bright Annealed / Polished
End Finish Plain ends / Beveled ends / Threaded
Packing Wooden crates / Bundles / Plastic caps on both ends
Schedule Chart (Standard Sizes)
NPS (inch) OD (mm) Schedule 10S Schedule 40S Schedule 80S
1/2" 21.3 2.11mm 2.77mm 3.73mm
1" 33.4 2.77mm 3.38mm 4.55mm
2" 60.3 2.77mm 3.91mm 5.54mm
4" 114.3 3.05mm 6.02mm 8.56mm
6" 168.3 3.40mm 7.11mm 10.97mm
8" 219.1 3.76mm 8.18mm 12.70mm
Other sizes and custom schedules available upon request.
Mechanical Properties (Typical)
Property 316 316L
Tensile Strength ≥ 515 MPa ≥ 485 MPa
Yield Strength (0.2%) ≥ 205 MPa ≥ 170 MPa
Elongation ≥ 35% ≥ 35%
Hardness (Brinell) ≤ 217 HB ≤ 217 HB
Hardness (Rockwell B) ≤ 95 HRB ≤ 95 HRB
Chemical Composition (%)
Element 316 316L
Carbon (C) ≤ 0.08 ≤ 0.030
Manganese (Mn) ≤ 2.00 ≤ 2.00
Silicon (Si) ≤ 0.75 ≤ 0.75
Phosphorus (P) ≤ 0.045 ≤ 0.045
Sulfur (S) ≤ 0.030 ≤ 0.030
Chromium (Cr) 16.0 - 18.0 16.0 - 18.0
Nickel (Ni) 10.0 - 14.0 10.0 - 14.0
Molybdenum (Mo) 2.00 - 3.00 2.00 - 3.00
Key Features & Benefits
Molybdenum addition (2-3%)
Superior resistance to pitting and crevice corrosion
Low carbon (316L)
Excellent weldability, no post-weld annealing required
Seamless construction
No weld seam, uniform structure, higher pressure rating
Austenitic structure
Good toughness even at cryogenic temperatures
Wide size range
6mm to 610mm OD, suitable for various applications
Applications
Industry Application Why 316/316L
Marine / Offshore Seawater piping, shipbuilding, and oil rigs Excellent chloride corrosion resistance
Chemical Processing Chemical reactors, heat exchangers, storage tanks Resists acids (acetic, citric, formic)
Oil & Gas Downhole tubing, flow lines, refineries High pressure & corrosion resistance
Pharmaceutical Clean steam lines, process piping Smooth interior, easy to clean
Food & Beverage Processing equipment, beer brewing lines Non-reactive, sanitary surface
Pulp & Paper Bleaching systems, digesters Resists sulfite and sulfate liquors
Water Treatment Desalination plants, RO systems Seawater and brine resistance
Power Generation Condenser tubes, cooling water systems Resists cooling water corrosion
Quality Assurance
Certification Description
Mill Test Certificate EN 10204 3.1 - traceable to heat number
Third-party Inspection SGS, BV, or as requested
Hydrostatic Test 100% tested per ASTM A312
Eddy Current Test Optional per ASTM A213
PMI Test Positive Material Identification - available
Intergranular Corrosion Test Per ASTM A262 - available
316 vs 316L - When to Choose Which?
Criteria Choose 316 Choose 316L
General corrosion service ✓ ✓
Welding involved - ✓ (preferred)
Thick-wall welding - ✓ (avoid sensitization)
High temperature service (>450°C) ✓ -
Maximum strength requirement ✓ (higher yield) -
Standard pressure piping ✓ ✓
Quick Rule: For welded applications, choose 316L. For high-temperature service, choose 316.
Frequently Asked Questions (FAQ)
Q: What is the difference between 316 and 316L?
A: 316L has lower carbon content (≤0.03% vs ≤0.08%), which prevents carbide precipitation during welding and eliminates the need for post-weld annealing.
Q: Can 316L pipe be used in high-temperature applications?
A: For continuous service above 450°C, standard 316 is preferred as 316L may have lower creep strength at elevated temperatures.
Q: Is 316 seamless pipe suitable for saltwater?
A: Yes. 316/316L offers excellent resistance to seawater and brackish water, though for stagnant seawater conditions, super duplex (2507) may be recommended.
Q: What standards apply to 316L seamless pipe?
A: Most common: ASTM A312 (general service), ASTM A213 (boiler/heat exchanger), ASTM A269 (precision tubing).
Q: Do you provide custom sizes?
A: Yes. We offer custom OD, WT, and length. Minimum order quantity for custom sizes - please inquire.
Why Choose Our 316/316L Seamless Pipe?
  • Factory direct - Competitive pricing
  • Full traceability - Heat number on every pipe
  • Short lead time - Stock available for standard sizes
  • Global export - 20+ countries served
  • Flexible MOQ - Small trial orders welcome
Request a Quote
Free samples available for qualified inquiries. A mill test certificate is provided with every shipment.
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