ASTM A240 304 304L SA240 316 316L Baffle Plate
We are a professional manufacturer of ASTM A240 304L SA240 316L Baffle Plate in China.
What is a Baffle plate?
Baffle Plate – Essential Component for Heat Exchangers & Flow Control
A baffle plate is a critical component used in heat exchangers, boilers, pressure vessels, and industrial piping systems to control fluid flow, improve heat transfer, and reduce vibration. These plates help guide fluids efficiently, ensuring optimal performance in thermal and mechanical systems.
They have two primary functions:
· Sustain the tube bundles
· Increase the heat-transfer by changing the flow of the fluid and generating turbulence
Materials for Baffle Plates
Stainless Steel (ASTM A240 304, 316, 316L) – Corrosion-resistant for chemical & marine environments.
Carbon Steel (ASTM A516 Gr 60 Grade 70 , ASTM A36) – High strength and durability for pressure vessels.
Aluminum & Copper Alloys – Lightweight and thermally efficient for heat exchanger applications.
Nickel Alloys (Inconel, Hastelloy) – Superior corrosion and heat resistance.
Duplex & Super Duplex Stainless Steel(ASTM A240 UNS S31803 ,ASTM A240 UNS S32750 – High strength and chloride resistance for offshore applications.
ASTM A240 304 vs 316
ASTM A240 304 stainless steel, the Ni element in its composition is very important, which directly determines the corrosion resistance of 304 stainless steel and its value.The most important elements in 304 are Ni and Cr, but they are not limited to these two elements. Specific requirements are specified by product standards. It is considered that 304 stainless steel can be considered as long as Ni content is more than 8% and Cr content is more than 18%. This is why the industry will call this kind of stainless steel 18 / 8 stainless steel. In fact, the relevant product standards have very clear provisions for 304, and these product standards have some differences for different shapes of stainless steel. Here are some common product standards and tests.
Werkstoff No 1.4307 Equivalent Standard
| SS | ASTM | UNS | ASME | JIS | British Standard (Old) | European Standard | SS | |
| BS | WNR | Name | ||||||
| 304L | A240 | S30403 | SA 240 | SUS 304L | 304S11 | 1.4306 | X2CrNi19-11 | 2352 |
Applications of Baffle Plates
Heat Exchangers & Boilers – Controls fluid movement to maximize thermal efficiency.
Pressure Vessels & Storage Tanks – Provides internal support and improves fluid circulation.
Industrial Piping Systems – Prevents excessive turbulence and ensures even flow distribution.
Marine & Offshore Equipment – Corrosion-resistant designs for shipbuilding and oil rigs.
Power Plants & HVAC Systems – Used in cooling towers, condensers, and steam systems.
