ASTM A240 316L Hot Rolled Annealed And Pickled Stainless Steel Plate For Petrochemical Industry
ASTM A240 316L Hot Rolled Annealed And Pickled Stainless Steel Plate is a low-carbon austenitic stainless steel sheet that complies with the American Society for Testing and Materials (ASTM) A240 standard. It is suitable for use in corrosive environments such as pressure vessels, construction, chemical processing, and food processing.
| Item | Specification |
|---|---|
| Product Name | ASTM A240 316L Hot Rolled Annealed and Pickled Stainless Steel Plate |
| Material Grade | ASTM 316L / UNS S31603 / EN 1.4404 |
| Standard | ASTM A240 / ASTM A480 / EN 10088 / JIS G4304 |
| Manufacturing Process | Hot Rolled, Annealed and Pickled |
| Surface Finish | No.1 Finish |
| Thickness | 3 mm – 100 mm (Custom Available) |
| Width | 1,000 mm, 1,219 mm (4'), 1,500 mm, 2,000 mm |
| Length | 2,000 mm, 2,438 mm (8'), 3,000 mm, 6,000 mm or Custom |
| Plate Size | 4' × 8', 5' × 10', 6' × 12' or Custom Sizes |
| Edge Type | Mill Edge (ME) / Slit Edge (SE) |
| Flatness | According to ASTM A480 |
| Thickness Tolerance | ASTM A480 Standard or Customized |
| Processing Services | Cut to Size, Laser Cutting, Plasma Cutting, Waterjet Cutting, CNC Machining |
| Heat Treatment | Solution Annealed |
| Protective Film | PVC Film Available (Optional) |
| Packaging | Standard Export Seaworthy Wooden Pallet |
| Inspection | PMI, Ultrasonic Testing (UT), Surface Inspection, Dimensional Inspection |
| Certificate | EN 10204 3.1 MTC, ISO 9001 |
| MOQ | 1 Piece |
| Delivery Time | 5–15 Working Days (Depending on Stock) |
| Applications | Petrochemical, Chemical Processing, Marine Engineering, Pressure Vessels, Heat Exchangers, Food Processing, Pharmaceutical Equipment |
Standard Number: ASTM A240/A240M-22a
Material Type: Austenitic Stainless Steel 316L (UNS S31603)
Delivery Condition: Hot-Rolled + Annealed + Pickled
Surface Treatment: After pickling, the material may be further passivated or polished to improve corrosion resistance and surface finish
| Element | ASTM A240 316L |
|---|---|
| Carbon (C) | ≤ 0.030 |
| Silicon (Si) | ≤ 0.75 |
| Manganese (Mn) | ≤ 2.00 |
| Phosphorus (P) | ≤ 0.045 |
| Sulfur (S) | ≤ 0.030 |
| Chromium (Cr) | 16.00–18.00 |
| Nickel (Ni) | 10.00–14.00 |
| Molybdenum (Mo) | 2.00–3.00 |
| Nitrogen (N) | ≤ 0.10 |
| Iron (Fe) | Balance |
| Property | Value |
|---|---|
| Density | 8.00 g/cm³ |
| Melting Range | 1375–1400°C |
| Elastic Modulus | 193 GPa |
| Thermal Conductivity (100°C) | 16.3 W/m·K |
| Electrical Resistivity (20°C) | 0.74 μΩ·m |
| Specific Heat Capacity | 500 J/kg·K |
| Coefficient of Thermal Expansion (20–100°C) | 16.0 × 10⁻⁶ /°C |
| Magnetic Permeability | Essentially Non-Magnetic (Annealed Condition) |
| Property | Value |
|---|---|
| Tensile Strength | ≥ 485 MPa |
| Yield Strength (0.2% Offset) | ≥ 170 MPa |
| Elongation (50 mm) | ≥ 40% |
| Hardness (HB) | ≤ 217 HB |
| Rockwell Hardness | ≤ 95 HRB |
| Reduction of Area | ≥ 50% |
| Poisson's Ratio | 0.30 |
ASTM A240 316L Hot Rolled Annealed and Pickled Stainless Steel Plate offers outstanding corrosion resistance, excellent weldability, and superior durability, making it an ideal choice for demanding industrial environments.
It is widely used in:
- ⛽ Petrochemical Industry
Reactors, pressure vessels, storage tanks, pipelines, and heat exchangers.
- ⚗ Chemical Processing
Acid storage tanks, processing equipment, valves, and pumps.
- ⛵ Marine Engineering
Shipbuilding, offshore platforms, seawater desalination systems, and marine piping.
- ???? Food & Beverage Industry
Processing equipment, storage tanks, conveyor systems, and sanitary machinery.
- ???? Pharmaceutical Industry
Sterile production equipment, cleanroom facilities, and pharmaceutical tanks.
- ⚡ Power Generation
Boiler components, condensers, and flue gas desulfurization (FGD) systems.
- ???? Water Treatment
Water storage tanks, filtration systems, and wastewater treatment equipment.
- ???? Industrial Fabrication
Structural components, heavy machinery, and custom-fabricated equipment.
| Grade | Main Advantages | Typical Applications |
|---|---|---|
| 304 | Lower cost and good general corrosion resistance | Indoor structures, food equipment, kitchenware |
| 316L | Excellent resistance to chlorides, acids, and pitting corrosion; superior weldability due to low carbon content | Petrochemical, marine, pharmaceutical, chemical processing |
| 321 | Excellent high-temperature oxidation resistance due to titanium stabilization | Heat exchangers, exhaust systems, boilers |
| 310S | Outstanding heat resistance up to high temperatures | Furnaces, kilns, heat treatment equipment |
| 2205 Duplex | High strength and exceptional chloride stress corrosion resistance | Offshore engineering, oil & gas, desalination |
1. What is the difference between 316L and 304 stainless steel plates?
316L contains 2–3% molybdenum, providing significantly better resistance to chlorides, seawater, and aggressive chemicals than 304. It is the preferred material for marine, chemical, and petrochemical applications.
2. Why is 316L widely used in the petrochemical industry?
316L offers excellent resistance to corrosion caused by acids, chlorides, and other aggressive chemicals. Its low carbon content also reduces the risk of intergranular corrosion after welding, making it suitable for pressure vessels, pipelines, and processing equipment.
3. What does "Annealed and Pickled" mean?
Annealing restores the material's ductility and relieves internal stresses after hot rolling. Pickling removes oxide scale from the surface, producing a clean surface that improves corrosion resistance and prepares the plate for further fabrication.
4. Is this stainless steel plate suitable for welding?
Yes. ASTM A240 316L stainless steel plate has excellent weldability and can be welded using common welding methods such as TIG, MIG, and arc welding. Its low carbon content helps minimize carbide precipitation during welding.
5. Can you provide custom sizes and cutting services?
Yes. We offer custom thicknesses, widths, lengths, and precision cutting services, including laser cutting, plasma cutting, waterjet cutting, and CNC machining according to customer drawings.
6. What international standards does this product comply with?
Our 316L stainless steel plates are manufactured in accordance with ASTM A240, ASTM A480, EN 10088, and JIS G4304, ensuring reliable quality and international compatibility.
7. Is 316L stainless steel suitable for seawater applications?
Yes. Thanks to its molybdenum content, 316L provides much better resistance to seawater corrosion than 304. However, for continuous immersion in highly aggressive seawater, duplex stainless steels such as 2205 may offer even greater corrosion resistance.
8. What surface finish is supplied?
This product is supplied in a hot rolled, annealed and pickled condition, typically with a No.1 finish, which is commonly used for industrial fabrication, pressure vessels, and chemical processing equipment.
9. What certifications can you provide?
We can provide Mill Test Certificate (EN 10204 3.1), material traceability documents, and third-party inspection reports upon request.
10. Why choose your company as a stainless steel plate supplier?
- Factory-direct pricing with stable quality
- Large inventory for fast delivery
- ASTM, EN, and JIS compliant materials
- Custom cutting and processing services
- Strict quality inspection and full traceability
- Rich export experience serving global industrial customers
- Professional technical support and responsive after-sales service
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