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Stainless Steel Pipe | 316L Marine-Grade Exhaust Piping
Stainless Steel Pipe | 316L Marine-Grade Exhaust Piping
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Stainless Steel Pipe | 316L Marine-Grade Exhaust Piping
Product Specifications
| Dimension/Property | Specification |
|---|---|
| Material Grade | 316L (Low Carbon, Marine-Grade) |
| Outer Diameter (OD) | 0.375" to 6.625" (Customizable up to 36") |
| Wall Thickness | 0.126" (Schedule 80) to 0.28" (Schedule 40) |
| Length | Up to 240" (Custom lengths available) |
| Production Method | Seamless or Welded (TIG Welded for precision) |
| Surface Finish | Electropolished, Brushed (2B), Mirror, or Sanitary Finish |
| Thread Compatibility | Threaded Pipe Fittings Stainless Steel (API 5B, NPT, or custom threading) |
| Hardness | Rockwell B Scale: 95 |
| Melting Point | 2500–2550°F (1371–1400°C) |
Mechanical Properties
| Property | Value |
|---|---|
| Ultimate Tensile Strength | 82 KSI (565 MPa) |
| Yield Strength | 37 KSI (255 MPa) |
| Elongation (%) | 52% in 2" (High Ductility |
| Density | 8.0 g/cm³ |
| Electrical Conductivity | 2% IACS |
Chemical Composition
| Element | Percentage |
|---|---|
| Chromium (Cr) | 16.0–18.0% |
| Nickel (Ni) | 10.0–14.0% |
| Molybdenum (Mo) | 2.0–3.0% |
| Carbon (C) | ≤0.03% |
| Manganese (Mn) | ≤2.0% |
Key Features & Applications
-
Corrosion Resistance:
- Superior resistance to chloride-induced pitting and crevice corrosion, ideal for marine environments, chemical processing, and coastal applications.
- Passive chromium oxide layer prevents rust, even in humid or acidic conditions.
-
High-Temperature Performance:
- Maintains structural integrity up to 1700°F (925°C), suitable for exhaust systems, boilers, and heat exchangers.
-
Welding Compatibility:
- TIG Welding Stainless Steel Pipe ensures seamless joints with minimal heat distortion, preserving corrosion resistance.
- Post-weld annealing available for heavy sections to prevent carbide precipitation.
-
Customization:
- Available in threaded pipe fittings stainless steel, beveled ends, or flanges for versatile installation.
- Custom thickness, diameter, and surface finishes (e.g., electropolished for sanitary applications).
Technical Insights
Tensile & Bend Strength
316L stainless steel exhibits exceptional ultimate tensile strength (82 KSI) and yield strength (37 KSI) due to its austenitic structure and molybdenum content. The high elongation (52%) ensures ductility, allowing the pipe to withstand bending and shaping without cracking. For welding stainless steel exhaust pipe, the low carbon content (<0.03%) minimizes intergranular corrosion risks, ensuring longevity in high-stress environments.
Weight Calculation Formula
Calculate the weight of 316L stainless steel pipe using:
Example: For a 6" OD pipe with 0.28" wall thickness:
.
Why Stainless Steel Can Rust?
Despite its "stainless" properties, 316L may corrode under extreme conditions:
- Chloride Exposure: Prolonged contact with seawater or de-icing salts can degrade the passive layer.
- Mechanical Damage: Scratches or improper TIG welding stainless steel pipe techniques expose underlying iron to oxidation.
- Chemical Contamination: Acids (e.g., sulfuric) or alkalis disrupt the chromium oxide film.
Preventive measures include regular cleaning, electropolishing, and using thread sealants on threaded pipe fittings stainless steel.
Why Choose Our 316L Stainless Steel Pipes?
- Certified Quality: ISO 9001, ASTM A312/SA213, and RoHS compliant.
- Global Expertise: Decades of experience in marine, automotive, and industrial applications.
- Rapid Delivery: Large inventory with same-day shipping for standard sizes.
- Custom Solutions: Tailored dimensions, threading, and surface finishes.
- Competitive Pricing: Direct-from-factory rates with bulk-order discounts.
