High-Performance Hot Rolled ASTM A240 TP316L Stainless Steel Plates Deliver Superior Corrosion Resistance for Marine Shipbuilding
Date: October 21, 2025
[wuxi, china] — A new batch of Hot Rolled ASTM A240 TP316L (S31603) Stainless Steel Plates with a NO.1 finish and widths ranging from 1500mm to 3000mm is now available for the global marine and shipbuilding industry. Known for its exceptional corrosion resistance, durability, and weldability, this stainless steel plate is designed to meet the demanding conditions of seawater exposure and harsh chemical environments.
Manufactured according to ASTM A240 standards, type 316 and 316L are chromium-nickel austenitic stainless steels enhanced with molybdenum. This key alloying element significantly improves resistance to chloride corrosion and acidic conditions, making grades 316/316L ideal for marine and offshore applications.
Compared to 304/304L stainless steel, the 316/316L grades offer far superior resistance to pitting and crevice corrosion, particularly in saltwater environments. The low carbon content of 316L (maximum 0.030%) minimizes carbide precipitation during welding, ensuring excellent intergranular corrosion resistance and strength retention — a crucial property for ship hulls, tanks, and engine components.
Both grades are non-magnetic in the annealed condition, though slight magnetism may appear after cold working. This can be corrected through additional heat treatment if required.
Applications of ASTM A240 316/316L stainless steel include:
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Marine and shipbuilding components exposed to saltwater and chloride-rich environments
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Chemical and petrochemical processing equipment
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High-temperature parts such as engine and motor housings
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Structural frames, tanks, and enclosures requiring both strength and corrosion resistance
Chemical Composition (wt%)
| Element |
316 |
316L |
| Carbon |
0.08 |
0.030 max |
| Chromium |
16.0–18.0 |
16.0–18.0 |
| Nickel |
10.0–14.0 |
10.0–14.0 |
| Molybdenum |
2.00–3.00 |
2.00–3.00 |
| Manganese |
2.00 |
2.00 |
| Silicon |
0.75 |
0.75 |
| Nitrogen |
0.10 |
0.10 |
| Phosphorus |
0.045 |
0.045 |
| Sulfur |
0.030 |
0.030 |
Mechanical Properties
| Property |
316 |
316L |
| Yield Strength (min, ksi) |
30 |
25 |
| Tensile Strength (min, ksi) |
75 |
70 |
| Elongation (min, %) |
40 |
40 |
| Hardness (max, Rb) |
95 |
95 |
These plates comply with international standards including ASTM A240, ASTM A666, ASME SA240, and AMS 5524/5507, ensuring compatibility with a wide range of industrial and engineering specifications.
With its combination of strength, corrosion resistance, and weldability, the ASTM A240 TP316L S31603 stainless steel plate continues to be the material of choice for critical marine and shipbuilding applications — delivering reliability and long service life even in the most demanding maritime environments.
Tags: stainless steel plate, precision ground stainless steel plate, stainless steel sheets and plates, ASTM A240 316L, marine shipbuilding materials
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Mr. Gao Ben |
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Sale Manager |
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+86-18068357371 |
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