What is SA 240 TP 316L material specifications ?
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What Is SA240 TP316L Material?
ASME SA240 TP316L stainless steel is an austenitic stainless steel material widely used for pressure vessels, heat exchangers, and corrosion-resistant industrial equipment. The designation TP316L indicates a low-carbon version of 316 stainless steel, designed to improve weldability and reduce the risk of intergranular corrosion.
Compared with standard 316 stainless steel, TP316L contains a maximum carbon content of 0.03%, which helps maintain corrosion resistance after welding. Because of these properties, SA240 TP316L plates are widely used in chemical processing, marine equipment, pharmaceutical production, and food processing industries.
What is the ASTM A240 GR 316 equivalent to?
ASTM A240 Grade 316 stainless steel is primarily equivalent to the European standard EN 1.4401 (X5CrNiMo17-12-2) and Japanese JIS SUS316. It is a molybdenum-bearing austenitic steel often designated as UNS S31600, Werkstoff Nr. 1.4401, and BS 316S31, providing high corrosion resistance.
Chemical Composition of SA240 TP316L SS Plate
| Element | Content |
|---|---|
| Carbon | ≤0.03% |
| Chromium | 16–18% |
| Nickel | 10–14% |
| Molybdenum | 2–3% |
| Manganese | ≤2.0% |
| Silicon | ≤1.0% |
| Phosphorus | ≤0.045% |
| Sulfur | ≤0.03% |
Mechanical Properties of SA240 TP316L hot rolled plate
| Property | Value |
|---|---|
| Tensile Strength | ≥485 MPa |
| Yield Strength | ≥170 MPa |
| Elongation | ≥40% |
| Hardness | ≤95 HRB |
Key Advantages of SA240 TP316L Stainless Steel plate
Excellent Corrosion Resistance:
TP316L contains 2.0–3.0% molybdenum (Mo), giving it a typical Pitting Resistance Equivalent Number (PREN) of 24–26, compared with 18–20 for 304 stainless steel. In marine environments or high-chloride conditions such as bleach or saltwater, TP316L effectively resists localized pitting and crevice corrosion. This helps prevent leakage or perforation of equipment, ensuring reliable performance even in aggressive chemical media.
Excellent Weldability:
As a low-carbon ("L" grade) stainless steel, TP316L has a maximum carbon content of 0.030%. The low carbon level minimizes chromium carbide precipitation during welding, which significantly reduces the risk of intergranular corrosion. As a result, TP316L maintains excellent corrosion resistance in welded structures and typically does not require post-weld heat treatment.
Outstanding High-Temperature Performance:
TP316L stainless steel can withstand temperatures of up to 870°C (1600°F) for intermittent service and about 925°C (1700°F) for continuous service, while maintaining good oxidation resistance. Compared with 304L stainless steel, TP316L offers higher creep strength and tensile strength. Even in temperature ranges between 400°C and 800°C, it maintains stable mechanical properties and is less prone to deformation, making it suitable for heat exchangers, boiler components, and exhaust systems.
Hygienic and Easy to Clean:
The non-porous and smooth surface of TP316L stainless steel makes it easy to sanitize and maintain, which is why it is widely used in food processing, dairy equipment, and pharmaceutical manufacturing systems.
High Strength and Durability:
TP316L stainless steel provides excellent toughness, tensile strength (typically 485–620 MPa), and ductility. These properties ensure long-term durability and reliability in structural and load-bearing applications, even in demanding industrial environments
ASME SA240 TP316L plates Applications
SA240 TP316L plates are widely used in industries requiring corrosion resistance and durability.
Chemical processing equipment
Pressure vessels and storage tanks
Heat exchangers
Marine engineering components
Pharmaceutical production equipment
Food processing machinery
SA240 TP316L vs 316 plate
| Feature | SA240 TP316L | 316 Stainless Steel |
|---|---|---|
| Standard | ASME SA240 | ASTM A240 / Common 316 Grades |
| Carbon Content | ≤0.03% | ≤0.08% |
| Chromium (Cr) | 16–18% | 16–18% |
| Nickel (Ni) | 10–14% | 10–14% |
| Molybdenum (Mo) | 2–3% | 2–3% |
| Pitting Resistance Equivalent Number (PREN) | 24–26 | 20–22 |
| Weldability | Excellent, minimal carbide precipitation, no post-weld annealing required | Good, higher risk of intergranular corrosion if welded without solution treatment |
| Corrosion Resistance | Superior, especially in chloride or marine environments | Good, less resistant to pitting and crevice corrosion |
| Mechanical Properties | Tensile Strength: 485–620 MPa, Yield Strength: ≥170 MPa, Elongation: ≥40% | Tensile Strength: 515–690 MPa, Yield Strength: 205 MPa, Elongation: 40% |
| Applications | Pressure vessels, chemical equipment, heat exchangers, marine environments | General industrial equipment, kitchen, architectural, and low-corrosion applications |
A240 TP316L Stainless Steel Supplier
Resource Integration Capabilities: GNEE has established long-term strategic partnerships with top global steel mills such as TISCO, Baosteel, and ZPSS, ensuring 100% genuine raw materials.
One-Stop Processing Services: Equipped with advanced processing centers, GNEE offers customized services including waterjet cutting, laser cutting, shearing, bending, and surface grinding (such as No.4, HL, 8K mirror finish).
Strict Quality Control: Each batch of products comes with a Material Certificate (MTC) conforming to EN 10204 3.1 standards. Third-party testing (such as SGS, TUV, BV, Intertek) is supported.
Professional Technical Support: For complex working conditions such as acidic, high-temperature, or high-pressure environments, GNEE's technical team can provide material selection advice and application consultation.
Available Forms
GNEE offers a full range of SA240 TP316L shapes to meet diverse manufacturing needs:
A240 TP316L Stainless Steel Plate & Sheet/Coil: Cold-rolled and hot-rolled, with surface finishes available in 2B, No.1, No.4, HL, and 8K.
A240 TP316L Stainless Steel Strip: Precision thin strip for gaskets or precision components.
A240 TP316L Medium-thick Plate: Specifically designed for pressure vessel and large storage tank manufacturing.
TP316L stainless steel plate size and thickness
| Product Form | Thickness (mm) | Width (mm) | Length (mm) / Notes |
|---|---|---|---|
| A240 TP316L Cold Rolled Sheet (CR) | 0.3 – 6.0 | 1000 / 1219 / 1500 | 2000 / 2438 / 3000 / Cut-to-Length |
| A240 TP316L Hot Rolled Plate (HR) | 3.0 – 100+ | 1500 / 1800 / 2000 / 2500 | 6000 / 8000 / 12000 / Cut-to-Length |
| A240 TP316L Coil | 0.3 – 14 | 1000 / 1219 / 1500 / 2000 | Coiled (can be slit or cut-to-length as required) |
Lead Time
In Stock: GNEE maintains a stock of 2000 tons of TP316L, with standard specifications available for shipment within 3-7 days.
Custom Processing: For specific size cutting or surface treatment requirements, the lead time is typically 7-14 days.
Bulk Orders/Steel Mill Production: For production orders with special specifications, the lead time is typically around 25-45 days.
Packaging
GNEE strictly adheres to standard export packaging to ensure no surface damage during long-distance transport:
Surface Protection: Single/double-sided PVC or laser-coated protective film.
Bottom Layer Protection: Wooden pallets or fumigation-free wooden pallets.
Outer Packaging: Waterproof paper packaging, secured with steel straps.
FAQ
Q.Is SA240 TP316L the same as ASTM A240 316L?
A.Yes, SA240 TP316L and ASTM A240 316L are generally considered equivalent in terms of chemical composition and mechanical properties. They are both low-carbon, chromium-nickel austenitic stainless steels designed for corrosion resistance. The primary difference is that SA240 is the ASME (American Society of Mechanical Engineers) standard, while A240 is the ASTM standard.
Q.What is the difference between 316L and 304 stainless steel?
A.The key difference is that 316L contains 2–3% molybdenum and ≤0.03% carbon, giving it significantly higher resistance to pitting and crevice corrosion than 304 stainless steel, which has no molybdenum and up to 0.08% carbon.
Q.Is TP316L suitable for marine applications?
A.Yes, TP316L (UNS S31603) is highly suitable for marine applications, commonly known as "marine grade" stainless steel. It is an austenitic alloy with 2–3% molybdenum, providing superior resistance to chloride-induced pitting and crevice corrosion in seawater and coastal environments.
Q.Can SA240 TP316L be welded easily?
A.Yes, SA240 TP316L (a low-carbon austenitic stainless steel) is considered very easy toweld using all standard fusion methods, including TIG (GTAW), MIG (GMAW), and Stick(SMAW). Its low carbon content (S 0.03%) minimizes carbide precipitation duringwelding, providing excellent corrosion resistance in the as-welded state without requiringpost-weld annealing.
