Introduction:    

Tube sheets also named tube plate,Cladding tube sheets have holes drilled to accept a series of tubes inside of an enclosed tubular pressure vessel.The tube sheet itself serves as a supporting element in heat ex-changers and boilers. Tube sheets have different sizes and a series of holes are done to create a place where the tube ends are welded.Also called tube plate.There are two types: floating tube sheet and stationary tube sheet.

The cladding tube sheet is one of the main components in a shell & tube heat exchanger.

Depending on the tube bundle configuration, a heat exchanger can be equipped with one or two tube sheets.

These are usually made of low carbon steel material, with a varying thickness based on the fluid pressure.

Depending on the final application (petrochemical, nuclear, oil&gas, etc.) the tube sheet can be cladded with Stainless Steel or other Super Alloys or even be entirely made out Stainless Steel or Superalloys.

Typical Hole Patterns
The most common types of holes experienced in tube sheet dilling are triangular, rotated triangular, square and rotated square. Each hole pattern presents its own dilling challnges. See typical pattern types below.

Bimetallic cladding tube sheet used in some special work conditions.

UsuallyCarbon steel cladding with Stainless Steel,Carbon steel cladding with Duplex Stainless Steel,Carbon steel cladding with Titanium alloy. And also Stainless Steel cladding with Duplex Stainless, Steel Stainless Steel cladding with Titanium alloy,Steel Stainless Steel cladding with copper alloy.        

Applications：

Cladding Tube plate is widely used in tubular heat exchangers, boilers, pressure vessels, steam turbines, large central air conditioners, condensers, evaporators and other products. The metal material makes it not only rigid, but also has great heat conduction performance. The precision of tube plate processing, especially the tolerance of hole spacing and diameter, perpendicularity, and finish greatly affect the assembly and performance of the equipment listed above.

Standard and material grade:

Forged, A182F304/304L, A182, F316/316L, A182F321, A182F310S, A182F347H, 

A182F316Ti, A403 WP317, 904L, 1.4301,1.4307, 1.4401, 1.4571, 1.4541, 254Mo and etc.

Carbon steel: A105, A350LF2, Q235, St37, St45.8, A42CP, E24 , A515 Gr60, A515 Gr 70

ASTM A240 304  316L .

Standard and material grade

Forged, A182 F304/304L, A182 F316/316L, A182 F321, A182 F310S, A182 F347H, 

A182 F316Ti, 317L, 904L, 1.4301,1.4307, 1.4401, 1.4571, 1.4541, 254Mo and etc.

Duplex stainless steel: UNS31803, SAF2205, UNS32205, UNS31500, UNS32750, 

UNS32760, 1.4462, 1.4410, 1.4501 and etc

ASTM A240 304 304L  316 316L , 904L  

ASTM B265 GR1、GR2、GR3、GR5、GR7、GR12. tube sheet/baffle plate

ASTM B381 GR F-1、GR F-2、GR F-3、GR F-5、GR F-7、GR F-12. tube sheet

BT1-00、BT1-0、BT1-2

Carbon steel: A105, SA266.GR2，A350LF2, Q235, St37, St45.8, A42CP, E24 , A515 Gr60, A515 Gr 70,S235JR

Nickel alloy: inconel600, inconel625, inconel690, incoloy800, incoloy 825, incoloy 800H,

 C22, C-276, Monel400, Alloy20 etc.

Cr-Mo alloy: A182F11, A182F5, A182F22, A182F91, A182F9, 16mo3 etc

Copper nickel SB171 C70600,C71500 TUBESHEET/BAFFLE/FLANGE/ROUND BAR

Naval Brass SB171 C46400/C46500 TUBESHEET/BAFFLE/FLANGE/ROUND BAR

Aluminium bronze SB171 C61300/C61400/C63000 TUBESHEET/BAFFLE/FLANGE/ROUND BAR

Brass tube sheet, baffle ,flange.

Cladding tube sheet  SA516.GR70+SB171 C71500       SA516.GR70+ASTM B265 GR2

SA240 316L +ASTM B265 GR2  Duplex+carbon steel

Specification

OD40-6000MM,Thickness from 5mm---300mm

Manufacturing Process

ingot billet &round bar-- chemical element analizing---bandsaw cutting---Base body Forging,Overlay Welding ,Normalizing,Solid Solution,Turning,Milling,Drilling ,Fraising,Boring,Boring Grooves,-inspectction---marking---packing with plywoodcase.

Two kind material grade Pressure Vessel plate,Base plate with cladding plate Explosion---blank--Normalizing---Solid Solution---Turning---Milling,Drilling ---Fraising---Boring---Boring Grooves,--inspectction---marking---packing with plywoodcase.

Packing