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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

               

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