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ASME SA 266 Gr.2N Heat Exchanger Tubesheet With Chemical Requirements
ASME SA 266 Gr.2N Heat Exchanger Tubesheet With Chemical Requirements
ASME SA 266 Gr.2N Heat Exchanger Tubesheet With Chemical Requirements
ASME SA 266 Gr.2N Heat Exchanger Tubesheet With Chemical Requirements
ASME SA 266 Gr.2N Heat Exchanger Tubesheet With Chemical Requirements
ASME SA 266 Gr.2N Heat Exchanger Tubesheet With Chemical Requirements
ASME SA 266 Gr.2N Heat Exchanger Tubesheet With Chemical Requirements
ASME SA 266 Gr.2N Heat Exchanger Tubesheet With Chemical Requirements
Specifications
Brand Name :
YUHONG
Model Number :
TUBE SHEET
Certification :
ISO 9001-2015
Place of Origin :
CHINA
MOQ :
1 SET
Price :
NON
Payment Terms :
L/C, T/T
Supply Ability :
10000 STES / YEAR
Delivery Time :
1 - 4 MONTH
Packaging Details :
WOODEN CASE, Ply-Wooden Cases with Steel Frames
Standard :
ASTM, ASME, ISO, JIS
Material :
Gr.2N
Key Words :
Tubesheet
Customization Options :
Holes, grooves, slots, etc.
Size :
Customized
Application :
Heat exchangers, boilers, condensers
Description

ASME SA266 Gr.2N Tube Sheet

ASME SA266 Gr.2N carbon steel tube sheet is the preferred material for conventional heat exchangers and boiler equipment due to its economy, easy processing and medium temperature strength. When selecting, it is necessary to strictly evaluate the corrosiveness of the medium and the temperature and pressure conditions, and use protective coatings or upgraded materials when necessary. For high-risk conditions (such as sour oil and gas, seawater cooling), stainless steel or composite plates are recommended to ensure long-term reliability.

Advantages


High cost performance: low cost, suitable for non-corrosive media (such as water, steam, air).

Convenient processing: good machinability and weldability, matching welding material E7018 (AWS A5.1).

High temperature stability: short-term temperature resistance up to 450°C (stable oxide layer).

Limitations


General corrosion resistance:

Not suitable for Cl⁻, H₂S or acidic media (pH <6), need to be upgraded to stainless steel (SA182 F304) or composite plate.

Limited low temperature toughness:

SA350 LF2 (low temperature carbon steel) is required when the design temperature is below -29°C.

Chemical Composition Requirements

Item Chemical Req. for ASTM A266, %
Gr. 1 & 2 Gr. 3 Gr. 4
C ≤ 0.30 ≤ 0.35 ≤ 0.30
Mn 0.40~1.05 0.80~1.35 0.80~1.35
P ≤ 0.025 ≤ 0.025 ≤ 0.025
S ≤ 0.025 ≤ 0.025 ≤ 0.025
Si 0.15~0.35 0.15~0.35 0.15~0.35

Mechanical Properties

Tensile
Requirements		 Gr. 1 Gr. 2 & 4 Gr. 3
T.S min.
ksi [Mpa]		 60~85
[415~585]		 70~95
[485~655]		 75~100
[515~690]
Y.S min.
ksi [Mpa]		 30
[205]		 36
[250]		 37.5
[260]
EL. in 2" or
[62.5 mm]
min. %		 23
[21]		 20
[18]		 19
[17]
R.o.A
min. %		 38 33 30

Application:

Heat exchangers and condensers:

Fixed tube sheet heat exchangers (TEMA types NEN, BEM), suitable for refineries and chemical plants.

Desalination multi-effect evaporator (MED) tube sheets.

Boilers and pressure vessels:

Fire tube boiler tube sheet, design pressure ≤5 MPa.

Auxiliary feed water heater (AFWH) of nuclear power plant.

Petrochemical equipment:

Hydrogenation reactor (Hydrotreater) inlet distributor tube sheet.

Sulfur recovery unit (SRU) condenser.

ASME SA 266 Gr.2N Heat Exchanger Tubesheet With Chemical Requirements

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ASME SA 266 Gr.2N Heat Exchanger Tubesheet With Chemical Requirements

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Product Detail
Brand Name :
YUHONG
Model Number :
TUBE SHEET
Certification :
ISO 9001-2015
Place of Origin :
CHINA
MOQ :
1 SET
Price :
NON
Contact Supplier
ASME SA 266 Gr.2N Heat Exchanger Tubesheet With Chemical Requirements
ASME SA 266 Gr.2N Heat Exchanger Tubesheet With Chemical Requirements
ASME SA 266 Gr.2N Heat Exchanger Tubesheet With Chemical Requirements
ASME SA 266 Gr.2N Heat Exchanger Tubesheet With Chemical Requirements

YUHONG HOLDING GROUP CO., LTD

Verified Supplier
1 Years
ningbo
Since 1990
Business Type :
Manufacturer, Exporter, Trading Company, Seller
Main Products :
TEMA Heat Exchanger, Air Cooled Heat Exchanger, Fired Heater
Total Annual :
50M-75M
Employee Number :
50~850
Certification Level :
Verified Supplier
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