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Stainless Steel Pipe | 316L Aerospace-Grade Precision Tubes
Stainless Steel Pipe | 316L Aerospace-Grade Precision Tubes
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Stainless Steel Pipe | 316L Aerospace-Grade Precision Tubes
Product Specifications
| Dimension/Property | Specification |
|---|---|
| Material Grade | 316L (Low Carbon, Aerospace-Grade) |
| Outer Diameter (OD) | 6mm–2500mm (Customizable per stainless steel pipe dimensions chart) |
| Wall Thickness | 0.6mm–40mm (Compliant with stainless steel pipe chart standards) |
| Length | Up to 12m (Standard) / Custom Lengths (Up to 20m) |
| Production Method | Seamless (Cold/Hot Rolled) or Welded (TIG Welded for precision) |
| Surface Finish | Electropolished (Ra ≤0.4μm), Mirror, Brushed (2B), or Passivated |
| Hardness | Rockwell B: 70–95 |
| Melting Point | 1400–1450°C (2552–2642°F) |
Mechanical Properties
| Property | Value |
|---|---|
| Ultimate Tensile Strength | 485–621 MPa (304L: 485 MPa; 316L: 515 MPa) |
| Yield Strength | 170–290 MPa (304L: 170 MPa; 316L: 290 MPa) |
| Elongation (%) | 30–55% (High Ductility) |
| Density | 8.0 g/cm³ |
| Temperature Resistance | -40°C to 925°C (Continuous Use) |
Chemical Composition
| Element | 316L (%) |
|---|---|
| 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
-
Aerospace Performance:
- 316L’s molybdenum content enhances resistance to chloride-induced stress corrosion cracking (SCC), critical for aircraft hydraulic systems and engine components.
- Maintains structural integrity in cryogenic environments (e.g., liquid oxygen tanks) and high-temperature exhaust systems.
-
Precision Engineering:
- Electropolished inner surfaces minimize friction and contamination, ideal for fuel lines and pneumatic systems.
- Compliant with ASTM A312, ASME SA213, and AMS 5647 standards for aerospace applications.
-
Customization:
- Available in stainless steel pipe chart schedules (Sch 5S to Sch 80S) for pressure-specific requirements.
- Threaded, flanged, or beveled ends for seamless integration with existing systems.
Technical Insights
Tensile & Bend Strength
316L’s austenitic structure delivers exceptional tensile strength (485–621 MPa) and bend resistance due to its high nickel and molybdenum content. Its elongation (30–55%) ensures ductility, enabling complex forming without cracking—critical for aerospace components like landing gear tubing and heat exchangers. Post-weld annealing eliminates carbide precipitation risks, preserving corrosion resistance in welded joints.
Weight Calculation Formula
Calculate the weight of 316L stainless steel pipes using:
Example: A 100mm OD pipe with 5mm wall thickness weighs:
.
Marking & Identification
Pipes are laser-etched with:
- Grade (316L)
- ASTM/ASME Standard
- OD, Wall Thickness, Heat Number, and stainless steel pipe dimensions chart compliance.
Why Stainless Steel Can Rust?
Despite its corrosion resistance, 316L may corrode under extreme conditions:
- Chloride Exposure: Prolonged contact with de-icing salts or seawater degrades the passive chromium oxide layer.
- Mechanical Damage: Scratches or improper welding expose iron to oxidation.
- High-Temperature Carbide Precipitation: Welding or forging above 450°C without annealing can lead to intergranular corrosion. Preventive measures include passivation, electropolishing, and using compatible stainless steel pipe chart fittings.
Why Choose Our 316L Stainless Steel Tubes?
- Certified Quality: ASTM A312, ASME SA213, and ISO 9001 certified with full traceability.
- Global Aerospace Expertise: Trusted by leading aviation and defense manufacturers since 2015.
- Rapid Delivery: 15-day lead time for standard sizes; 5-day stock availability.
- Custom Solutions: Tailored OD, wall thickness, and surface finishes (mirror, electropolished).
- Competitive Pricing: Factory-direct stainless steel pipe price with bulk-order discounts.
