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Stainless Steel 316L Tube | Premium High-Temperature Durability
Stainless Steel 316L Tube | Premium High-Temperature Durability
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Product Detail Page: Stainless Steel 316L Tube | Premium High-Temperature Durability
Technical Specifications
(Structured in Tables for Clarity)
1. 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 |
| Silicon (Si) | ≤1.0 |
| Phosphorus (P) | ≤0.045 |
| Sulfur (S) | ≤0.03 |
| Based on international standards (AISI, DIN, JIS, etc.). |
2. Mechanical Properties
| Property | Value |
|---|---|
| Tensile Strength (σb) | ≥550 MN/m² |
| Yield Strength (σs) | ≥200 MN/m² |
| Elongation (δ5) | ≥40% |
| Hardness (HB) | ≤187 |
| Impact Toughness | 100 J (at 20°C) |
| Data derived from rigorous testing under ASTM standards. |
3. Dimensions & Tolerances
| Parameter | Range |
|---|---|
| Outer Diameter (OD) | 6–219 mm |
| Wall Thickness | 0.5–25 mm |
| Length | Customizable (1–12 m) |
| Straightness Tolerance | ≤1.5 mm/m |
| Available in hot-rolled, cold-drawn, and welded forms. |
4. Heat Treatment & Surface Finish
| Process | Details |
|---|---|
| Solution Annealing | 1000–1100°C, water-quenched |
| Surface Finish | Polished, Pickled, Bright Annealed |
| Ultrasonic Testing | ASTM A450 compliant |
Detailed Performance Attributes
Tensile Strength & High-Temperature Resistance
The stainless steel 316L tube exhibits exceptional tensile strength (≥550 MN/m²), making it ideal for high-pressure and high-temperature environments. Its austenitic structure ensures stability even at temperatures up to 750°C, thanks to molybdenum-enhanced corrosion resistance. This makes it suitable for heat exchangers, boilers, and industrial furnaces.
Bending Strength & Flexibility
With a yield strength of ≥200 MN/m², the stainless steel 316L tube resists deformation under stress. Its elongation rate (≥40%) allows for extensive forming and welding without cracking, perfect for stainless steel tube connectors in complex piping systems.
Identification & Marking
Each tube is laser-marked with:
- Grade (316L)
- Heat Number
- Manufacturer’s Logo
- ASTM/AISI Standard Code (e.g., ASTM A213)
This ensures traceability and compliance with global quality standards.
Weight Calculation Formula
Calculate the weight of your stainless steel 316L tube using:
Example: For a tube with OD=50 mm and WT=2 mm, weight ≈ 2.38 kg/m.
Why Stainless Steel Can Rust?
While stainless steel 316L tube is highly corrosion-resistant, improper handling or extreme conditions (e.g., chloride exposure, mechanical damage) may cause localized corrosion. Key factors include:
- Chloride Stress Corrosion: Avoid prolonged exposure to seawater or chlorides.
- Galvanic Corrosion: Use compatible stainless steel tube connectors to prevent electrochemical reactions.
- Surface Contamination: Ensure proper passivation to maintain the chromium oxide layer.
Applications
- Capillary Tube Stainless Steel: Precision medical instruments, chromatography systems.
- Petrochemical: Reactors, pipelines.
- Marine: Shipbuilding, offshore platforms.
- Food Processing: Hygienic and acid-resistant equipment.
Why Choose Our Stainless Steel 316L Tubes? (Positioned at Page Bottom)
- Military-Grade Quality: Rigorous testing (ultrasonic, hardness, chemical analysis) ensures compliance with ASTM, DIN, and JIS.
- Customization: Tailored dimensions (OD: 6–219 mm, wall thickness: 0.5–25 mm) and heat treatments (solution annealing, quenching).
- Stock Availability: Immediate delivery for standard sizes; no MOQ restrictions.
- Technical Support: Expert guidance on welding (AWS E/ER630 recommended), installation, and maintenance.
- Competitive Pricing: Transparent quotes with bulk-order discounts.
