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Boiler Tube

Pipe Type: Boiler Seamless Tube, Seamless Boiler Tube, Boiler Pipe
Application:
For High-pressure Fluids Transmission (boiler, heat exchanger, condenser)
Specification: OD: 0.84'' ~ 28'' (21.3 ~ 711mm)
                          WT: 0.091'' ~ 1.575'' (2.3 ~ 40mm)
                          LENGTH: Fixed Length (5.8/6/11.8/12 mtr), SRL, DRL
Standard: ASTM A179, ASTM A192, ASTM A210
Ends: Square Ends/Plain Ends (straight cut, saw cut, torch cut), Beveled/Threaded Ends
Surface: Bare, Lightly Oiled, Black/Red/Yellow Painting, Zinc/Anti-corrosive Coating
Packing: Bundled/In Bulk, Plastic Caps Plugged, Waterproof Paper Wrapped

               


 Specification of Boiler Tube

SPECIFICATION OF BOILER TUBES
OD*WT OD*WT OD*WT OD*WT OD*WT OD*WT OD*WT OD*WT
14*3 38*5,5 89*5 133*18 34*5 76*6 133*7 219*7
14*3,5 42*3 89*5,5 159*6 34*6,5 76*7 133*8 219*8
14*4 42*3,5 89*6 159*6,5 38*3 76*8 133*10 219*9
16*3 42*4 89*7 159*7 38*3,5 76*9 133*12 219*10
18*2 42*5 89*7,5 159*8 38*4 76*10 133*13 219*12
18*3 42*6 89*8 159*9,5 38*4,5 89*4 133*14 219*13
18*4 42*8 89*9 159*10 38*5 89*4,5 133*16 219*14
18*5 45*3 89*10 159*12 219*16 273*36 356*28 426*12
19*2 45*4 89*11 159*14 219*18 273*40 356*36 426*13
21*4 45*5 89*12 159*16 219*20 273*42 377*9 426*14
22*2,5 45*6 108*4,5 159*18 219*22 273*45 377*10 426*17
22*3 45*7 108*5 159*20 219*24 298,5*36 377*12 426*20
22*4 48*4 108*6 159*28 219*25 325*8 377*14 426*22
22*5 48*4,5 108*7 168*6 219*26 325*9 377*15 426*30
25*2,5 48*5 108*8 168*7 219*28 325*10 377*16 426*36
25*3 48*6 108*9 168*8 219*30 325*11 377*18 426*40
25*4 48*7 108*10 168*9,5 219*32 325*12 377*20 426*50
25*5 48,3*12,5 108*12 168*10 219*35 325*13 377*22 457*9,5
25*5,5 51*3 108*14 168*11 219*38 325*14 377*25 457*14
27*3,5 51*3,5 108*15 168*12 273*7 325*15 377*32 457*16
27*4 51*4 108*16 168*14 273*8 325*16 377*36 457*19
27*5 51*5 108*20 168*15 273*9 325*17 377*40 457*24
27*5,5 51*6 114*5 168*16 273*9,5 325*18 377*45 457*65
28*2,5 57*4 114*6 168*18 273*10 325*20 377*50 508*13
28*3 57*5 114*7 168*20 273*11 325*22 406*9,5 508*16
28*3,5 57*5,5 114*8 168*22 273*12 325*23 406*11 508*20
28*4 57*6 114*8,5 168*25 273*13 325*25 406*13 508*22
30*2,5 60*4 114*9 168*28 273*15 325*28 406*17 558,8*14
32*2,5 60*4 114*10 180*10 273*16 325*30 406*22 530*13
32*3 60*5 114*11 194*10 273*18 325*32 406*32 530*20
32*3,5 60*6 114*12 194*12 273*20 325*36 406*36 570*12,5
32*4 60*7 114*13 194*14 273*22 325*40 406*40 610*13
32*4,5 60*8 114*14 194*16 273*25 325*45 406*55 610*18
32*5 60*9 114*16 194*18 273*28 356*9,5 406,4*50 610*78
34*3 60*10 114*18 194*20 273*30 356*12 406,4*55 624*14,2
34*4 76*4,5 133*5 194*26 273*32 356*15 406*60 824*16,5
34*4,5 76*5 133*6 219*6,5 273*35 356*19

Tolerance

Standard
Out Diameter
Tolerance
GB3087
≤180
±1.0%(min: ±0.5mm)
GB5310
≤50
±0.5mm
>50
±1.0%


Standard
Wall Thickness(mm)
Tolerance
GB3087
3-20
+15%,12.5%
>20
±12.5%
GB5310
<3.5
+15%,-10%
3.5-20
+15%,-10%
>20
±10%

Chemical Composition & Mechanical Properties

Standard
Grade
Chemical composition(%)
Mechanical properties
C
Si
Mn
P
S
Tensile Strength(Mpa)
Yield Strength(Mpa)
Elongation(%)
DIN17175
St35.8
≤0.17
0.10-0.35
0.40-0.80
≤0.030
≤0.030
360-480
≥235
≥25
St45.8
≤0.21
0.10-0.35
0.40-1.20
≤0.030
≤0.030
410-530
≥255
≥21

We can produce all sizes of boiler tubes, according to European, Chinese, American, Japanese standard. With fast delivery time, supportive payment term.

All tubes production processes are controlled strictly, with high level of quality requirement, all tubes are inspection before delivery, and also accept third party inspection before delivery.