2 products
2 products
We supply 316 stainless steel pipes and tubes with stable quality and consistent performance. With enhanced corrosion resistance from molybdenum content, 316 stainless steel pipe is suitable for chemical, marine, food processing, and industrial piping systems.
316 stainless steel tubes are available in various sizes, wall thicknesses, and surface finishes to meet demanding industrial and structural requirements.
Available in wall thicknesses from 0.5 mm to 30 mm, with standard lengths or custom cut-to-size options.
By Manufacturing Process: Cold Drawn 316 Stainless Steel Seamless Pipe, Hot Rolled 316 Stainless Steel Seamless Pipe, ERW 316 Stainless Steel Pipe, Welded 316 Stainless Steel Tube
By Surface Treatment Type: 316 Pickled Stainless Steel Pipe, 316 Bright Annealed Stainless Steel Tube (BA), 316 Polished Stainless Steel Pipe, 316 Mirror Stainless Steel Tube, 316 Brushed Stainless Steel Tube
| Parameter | Description |
|---|---|
| Grade | 316 Stainless Steel (AISI / ASTM / EN Equivalent) |
| Outer Diameter | 6 mm – 630 mm |
| Wall Thickness | 0.5 mm – 30 mm |
| Length | 6 m, 12 m, or custom |
| Type | Seamless / Welded |
| Shape | Round, Square, Rectangular |
| Standard | ASTM A312, ASTM A213, ASTM A554, EN, JIS, GB |
| Surface Finish | Pickled, BA, Polished, Mirror, Brushed |
| Processing Services | Cutting, bending, end finishing |
| Packaging | Export-grade waterproof packing + wooden pallet |
| MOQ | Flexible |
Chemical Composition of 316 Stainless Steel (wt%)
| Element | Content (%) |
|---|---|
| Carbon (C) | ≤ 0.08 |
| Silicon (Si) | ≤ 1.00 |
| Manganese (Mn) | ≤ 2.00 |
| Chromium (Cr) | 16.0 – 18.0 |
| Nickel (Ni) | 10.0 – 14.0 |
| Molybdenum (Mo) | 2.0 – 3.0 |
| Phosphorus (P) | ≤ 0.045 |
| Sulfur (S) | ≤ 0.030 |
Mechanical Properties of 316 Stainless Steel Pipe / Tube
| Property | Typical Value |
|---|---|
| Tensile Strength | ≥ 515 MPa |
| Yield Strength (0.2%) | ≥ 205 MPa |
| Elongation | ≥ 40% |
| Hardness | ≤ 95 HRB |
| Density | ~8.0 g/cm³ |
| Melting Point | ~1370 – 1400 °C |
Heat Treatment of 316 Stainless Steel
316 stainless steel is an austenitic stainless steel and cannot be hardened by heat treatment. Heat treatment is mainly applied to improve corrosion resistance and restore ductility.
Solution Annealing: 1010 – 1120 °C, followed by rapid cooling
Stress Relief: Applied after cold forming or welding when required
Key Characteristics of 316 Stainless Steel Pipe / Tube
Excellent Corrosion Resistance
Molybdenum improves resistance to chlorides, acids, and marine environments.
Good Weldability
Suitable for TIG, MIG, and arc welding without major loss of corrosion resistance.
Stable Mechanical Properties
Maintains strength and toughness across a wide temperature range.
Good Formability
Easy to bend, cut, and fabricate for piping and structural systems.
Preferred for Harsh Environments
Widely used where 304 stainless steel is insufficient.
Typical Applications
316 stainless steel pipes and tubes are commonly used in:
Chemical and petrochemical processing systems
Marine and offshore piping
Food and beverage processing equipment
Pharmaceutical and sanitary pipelines
Heat exchangers and pressure vessels
Coastal and high-humidity architectural structures
FAQ – 316 Stainless Steel Pipe / Tube
Q1: What is 316 stainless steel pipe used for?
316 stainless steel pipe is used in corrosive environments such as chemical plants, marine systems, and food processing facilities.
Q2: What is the difference between 316 and 304 stainless steel pipe?
316 contains molybdenum, providing better resistance to chlorides and chemical corrosion than 304.
Q3: Is 316 stainless steel pipe suitable for marine use?
Yes, 316 stainless steel pipe is commonly used in marine and coastal environments.
Q4: Can 316 stainless steel tube be welded?
Yes, 316 stainless steel tube has good weldability using common welding methods.
Q5: Do you offer seamless and welded 316 stainless steel pipes?
Yes, both seamless and welded 316 stainless steel pipes are available.
Q6: Are custom sizes available for 316 stainless steel pipe?
Yes, custom diameters, wall thicknesses, and lengths are available upon request.
Specifications
| Parameter | Detail |
| Grades | 316 / 316L |
| Standard | ASTM A240 / A480, JIS G4304, EN 10088 |
| Thickness Range | 0.5 mm – 50 mm (customized) |
| Width | 1000 / 1219 / 1500 mm (customized available) |
| Length | 2000 / 2438 / 3000 mm or cut-to-length |
| Surface Finish | 2B, BA, No.4 (brushed), HL, 8K (mirror) |
| Edge Type | Mill edge / Slit edge |
| Form | Sheet / Plate / Cut pieces |
316/316L stainless steel plates
Both 316 and 316L stainless steel plates are austenitic stainless steels, with their core alloys being chromium (Cr ≥ 16%) and nickel (Ni ≥ 10%). The key difference between the two lies in their carbon content: 316 stainless steel has a carbon content of ≤ 0.08%, while 316L stainless steel (the "L" stands for "Low Carbon") has a carbon content of ≤ 0.03%. This carbon content difference is not only the core difference between the two, but also directly affects their intergranular corrosion resistance and weldability, providing a clear basis for selection in different application scenarios.
Chemical Composition (%)
| Grade | C | Mn | Si | P | S | Cr | Ni | Mo |
| 316 | ≤0.08 | ≤2.00 | ≤1.00 | ≤0.045 | ≤0.03 | 16.0–18.0 | 10.0–14.0 | 2.00–3.00 |
| 316L | ≤0.03 | ≤2.00 | ≤1.00 | ≤0.045 | ≤0.03 | 16.0–18.0 | 10.0–14.0 | 2.00–3.00 |
Mechanical Properties
| Property | 316 | 316L |
| Tensile Strength (MPa) | ≥515 | ≥485 |
| Yield Strength (MPa) | ≥205 | ≥170 |
| Elongation (%) | ≥40 | ≥40 |
| Hardness (HRB) | ≤95 | ≤95 |
Heat Treatment of 316 / 316L Stainless Steel Sheet
1. Annealing (Solution Treatment)
Temperature Range: 1010–1120°C
Process: Heat to the specified temperature, then rapidly cool in water or air.
Purpose: Restores full corrosion resistance and ductility by dissolving carbide precipitates and homogenizing the microstructure.
2. Stress Relieving
Application: Performed after heavy forming, bending, or machining operations.
Purpose: Reduces residual stress and minimizes distortion, maintaining dimensional accuracy for precision components.
3. Hardening
Note: 316 / 316L stainless steel cannot be hardened by heat treatment.
Alternative: Strength improvement can only be achieved through cold working, such as rolling or drawing.
4. Performance Balance
Proper heat treatment maintains the chromium-to-carbon balance, preventing sensitization and intergranular corrosion.
Ensures stable performance during welding, high-pressure vessel operation, and exposure to elevated temperatures or corrosive environments.
Features of 316/316L Stainless Steel Plates
- Corrosion Resistance They offer superior corrosion resistance (surpassing 304), withstanding atmospheric/humid coastal environments and dilute sulfuric/nitric acid. The 2%-3% molybdenum content resists chloride-induced corrosion (e.g., saltwater). 316L (C≤0.03%) further enhances post-weld intergranular corrosion resistance.
- Mechanical Properties Balances high strength and ductility: Tensile strength 515-750 MPa, yield strength 205-310 MPa (ensures load-bearing capacity); elongation ≥40% (enables forming, bending, deep drawing without cracking).
- Weldability Compatible with TIG/MIG/arc welding, no pre/post-weld heat treatment required for most cases. 316L’s low carbon minimizes welding sensitization, ideal for welded structures.
- Temperature Tolerance Maintains stability at up to 800°C (continuous service) and ~925°C (intermittent service), plus good low-temperature toughness (-196°C) for cryogenic applications.
Applications of 316 / 316L Stainless Steel Sheet
Marine & Offshore Equipment – Used for ship decks, seawater desalination tanks, and offshore platform structures.
Typically used in 6–12 mm thickness, offering excellent resistance to saltwater corrosion and sufficient load-bearing strength.
Medical & Pharmaceutical Industry – Ideal for surgical equipment housings, drug storage tanks, and sterile processing pipelines.
Commonly supplied in 1–3 mm thickness; 316L is preferred for its superior cleanliness and compliance with medical-grade hygiene standards.
Chemical & Petrochemical Industry – Applied in acid and alkali reactor linings, corrosion-resistant piping, and chemical storage tanks.
Recommended 3–8 mm thickness, capable of withstanding strong chemical and chloride corrosion.
High-End Food Processing – Suitable for dairy fermentation tanks, soy sauce brewing equipment, and seafood processing tables.
Typically 1.5–4 mm thickness, with 316L providing the best resistance to contamination and preventing impurity precipitation.
Coastal Construction & Decoration – Used in coastal building facades, outdoor sculptures, and spa or resort bathroom panels.
Decorative thin sheets (0.8–1.2 mm) are used for panels, while large-format sheets (4x8 ft / 1219x2438 mm or 5x10 ft / 1500x3000 mm) are ideal for facade cladding.
Industrial Machinery & Cryogenic Equipment – Suitable for low-temperature LNG storage components and high-temperature furnace linings.
Typically 4–10 mm thickness, maintaining mechanical stability from -196°C to 800°C.
316/316L Stainless Steel Sheet — FAQs
1. What is the difference between 316 and 316L stainless steel sheet?
316L contains lower carbon content (≤0.03%) compared to 316 (≤0.08%), which improves weldability and resistance to intergranular corrosion. 316L stainless steel sheet is often used in welded structures, chemical processing, and marine environments.
2. Is 316 stainless steel sheet magnetic?
Both 316 and 316L stainless steel sheets are non-magnetic in annealed condition. However, slight magnetism may appear after cold working or bending.
3. What thicknesses and sizes are available for 316/316L stainless steel sheet?
Common thicknesses include 0.5 mm, 1 mm, 2 mm, 3 mm, 6 mm, and 10 mm. Standard sizes are 4x8 ft (1219x2438 mm) and 5x10 ft (1500x3000 mm). Custom cutting and polishing are available.
4. Can 316L stainless steel sheet be used for food and medical equipment?
Yes. 316L is food-grade and medical-grade compliant, making it ideal for dairy tanks, kitchen counters, pharmaceutical vessels, and surgical instruments.
5. How corrosion-resistant is 316 stainless steel sheet in seawater?
316 and 316L offer excellent resistance to saltwater, chloride, and acid corrosion, making them suitable for marine structures, desalination systems, and coastal applications.
6. Can 316 stainless steel sheet be welded or formed easily?
Yes. Both grades have good weldability and formability. After welding, solution annealing is recommended for 316 to restore corrosion resistance; 316L usually does not require this step.
7. What is the surface finish of 316/316L stainless steel sheet?
Available finishes include 2B, BA (bright annealed), No.4 (brushed), HL (hairline), and mirror finish, depending on the application — decorative, industrial, or hygienic.
8. How does 316/316L stainless steel compare to 304 stainless steel?
316/316L contains molybdenum, giving it higher corrosion resistance, especially in chloride or acidic environments. 304 is more cost-effective but less durable in harsh conditions.