• Seamless Boiler Pipe
  • Seamless Boiler Pipe
  • Seamless Boiler Pipe
  • Seamless Boiler Pipe

Seamless Boiler Pipe

Application: For High-pressure Fluids Transmission. For the development of Waterwalls. For manufacturing Re-heater, Heat Ex-changer, Super-heater, Economizer etc.

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Introduction:

Seamless Boiler Pipe

Application: For High-pressure Fluids Transmission. For the development of Waterwalls. For manufacturing Re-heater, Heat Ex-changer, Super-heater, Economizer etc.
Specification: OD: 48.3mm ~ 711.2mm
WT: 3.6mm ~ 55mm
LENGTH: max 22mtr (5.8/6/11.8/12 meters, SRL, DRL)
Standard & Grade: ASTM A106, ASTM A179, ASTM A210 Gr. T5/T9/T11/T22/T91, ASTM A213 Gr. A1, JIS G3454, DIN 17175
Ends: Square End/Plain Ends (straight cut, saw cut, torch cut), Beveled End
Surface: Bare, Lightly Oiled, Black/Red/Yellow Painting, Zinc/Anti-corrosive Coating
Packing: Steel Strips bundled/In Bulk, Plastic Caps plugged, Waterproof Paper wrapped

Specification:

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

 

 

Application:

For High-pressure Fluids Transmission. For the development of Waterwalls. For manufacturing Re-heater, Heat Ex-changer, Super-heater, Economizer etc.

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