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ASTM A266 (ASME SA266) Gr.2 Carbon Steel Baffle Plate Tubesheet for Steam Turbine

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ASTM A266 (ASME SA266) Gr.2 Carbon Steel Baffle Plate Tubesheet for Steam Turbine

Country/Region	china
City & Province	ningbo zhejiang
Categories	Ventilation Fan Parts

Product Details

ASTM A266 (ASME SA266) Gr.2 Carbon Steel Baffle Plate Tubesheet for Steam Turbine

Description

Baffles are widely used in shell and tube heat exchangers, boilers, pressure vessels, steam turbines, large central air-conditioning and so on. Baffles are mainly used in shell and tube heat exchangers, boilers, pressure vessels, condensers, central air-conditioners, evaporators, seawater desalination and other chemical vessels, with the function of supporting the tube bundles and improving the heating efficiency. The metal material makes it not only very rigid, but also has great thermal conductivity.

ASTM A266 Grade 2 is a type of ASTM A266 carbon steel. The properties quoted apply to the normalised condition. The bars on the Material Properties Card below compare ASTM A266 Grade 2 with: Wrought Carbon or Unalloyed Steels (top), All Ferroalloys (middle), and the entire database (bottom).

Chemical Composition Requirements

Item	Chemical Req. for ASTM A266, %
Item	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