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Heat Exchanger Tubesheet
Created with Pixso. ASTM A240 SS304/304L Shell And Tube Heat Exchanger Tube Sheet Square Type

ASTM A240 SS304/304L Shell And Tube Heat Exchanger Tube Sheet Square Type

Brand Name: YUHONG
Model Number: ASTM A240
MOQ: 1 SET
Price: NON
Delivery Time: 1 - 4 MONTH
Payment Terms: L/C, T/T
Detail Information
Place of Origin:
CHINA
Certification:
ISO 9001-2015
Ptoduct Name:
Stainless Steel Tubesheet
Customization Options:
Holes, Grooves, Slots, Etc.
Key Words:
Square Tubesheet
Material:
SS304/304L
Standard:
ASTM, ASME, ISO, JIS
Application:
Heat Exchangers, Boilers, Condensers
Packaging Details:
WOODEN CASE, Ply-Wooden Cases with Steel Frames
Supply Ability:
10000 STES / YEAR
Highlight:

Shell And Tube Heat Exchanger Tube Sheet

,

SS304 Heat Exchanger Tube Sheet

,

ASTM A240 exchanger tube sheet

Product Description

ASTM A240 304 Square Tubesheet Shell And Tube Heat Exchangers
 

 
 
ASTM A240 304 Square Tubesheet is a square tube sheet made of 304 stainless steel. It complies with the ASTM A240 standard and is designed for heat exchangers and pressure vessels. Its core function is to precisely support and seal the tube bundle.
 
Its square structure is suitable for compact layouts (such as air-conditioning units and small reactors). The heat transfer uniformity is improved by optimizing the four-corner drilling holes.
 
It has the characteristics of weak acid/alkali corrosion resistance and high temperature resistance to prevent stress corrosion cracking. The flatness and tube hole spacing must be strictly controlled during manufacturing.
 
The surface finish reaches 2B/BA level. The edge chamfer reduces stress. It is suitable for shell and tube heat exchangers in chemical, food, pharmaceutical and geothermal equipment. It can be upgraded to 316L or 321 materials in chlorine-containing or high-temperature conditions.
 
 

Composition Ranges for ASTM A240 304L Tubesheet

Grade C Mn Si P S Cr Mo Ni N
304 min.
max.
-
0.08
-
2.0
-
0.75
-
0.045
-
0.030
18.0
20.0
- 8.0
10.5
-
0.10
304L min.
max.
-
0.030
-
2.0
-
0.75
-
0.045
-
0.030
18.0
20.0
- 8.0
12.0
-
0.10
304H min.
max.
0.04
0.10
-
2.0
-
0.75
-0.045 -
0.030
18.0
20.0
- 8.0
10.5
-

 
 
 
 

Mechanical properties of ASTM A240 304L Tubesheet

 

Grade Tensile Strength (MPa) min Yield Strength 0.2% Proof (MPa) min Elongation (% in 50mm) min Hardness
Rockwell B (HR B) max Brinell (HB) max
304 515 205 40 92 201
304L 485 170 40 92 201
304H 515 205 40 92 201

 
 
 
 
 
 
The core difference between round tubesheet and square tubesheet lies in structural adaptability and mechanical properties:
 
 
 
Round tubesheet adopts axisymmetric design, uniform pressure bearing (preferred for high pressure conditions > 5MPa), tube bundles are arranged in concentric circles, high material utilization, standardized manufacturing (complying with TEMA/ASME), suitable for large heat exchangers (such as power plant boilers, petrochemical reactors);
 
Square tubesheet adapts to compact space (such as air-conditioning units, small equipment), optimizes layout through matrix pipe layout, but the four corners need to be rounded and locally reinforced to relieve stress concentration, the manufacturing cost is 15-25% higher and relies on non-standard calculations, and is only recommended for low pressure (<3MPa) or space-constrained scenarios. Selection rule: choose round for high pressure/large, choose square for low pressure/compact, and use square with caution in chloride ion environment (to prevent stress corrosion cracking at corners).
 
 
 
 
 
Application
 
 
 
Air conditioning heat pump unit: 400×400mm tube sheet, suitable for rectangular shell, copper tube matrix arrangement (spacing 22mm), saving 30% space.
 
Food grade plate heat exchanger: square gasket groove (EPDM rubber), tube sheet surface electrolytic polishing to Ra≤0.8μm, in line with FDA standards.
 
Mobile hydraulic oil cooler: carbon steel tube sheet + epoxy coating, anti-vibration design (four-corner bolt locking + silicone shock pad).
 
Waste heat recovery unit: square tube sheet embedded in flue gas duct (800×600mm), pressure ≤2.5MPa after local reinforcement, cost 20% lower than round.
 
 
 
 
ASTM A240 SS304/304L Shell And Tube Heat Exchanger Tube Sheet Square Type 0