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Boiler Tube

1. Type: boiler seamless steel pipe, A192 boiler pipe······
2. Application: Superheated pipeline, Steam pipeline, Boiling water tube, etc
3. OD: 13.72-914.4mm, WT: 1.65-40mm, L: 0.5-20mt
4. Standard & Grade: ASTM A179, ASTM A192, ASTM A210, EN 10216-2, JIS 3461, DIN 17175
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What is boiler tube

The boiler tube is a branch pipe of the seamless steel pipe. It is used for boiler, heat-exchanger, or superheater. It has stringent requirements for the manufacture of steel pipes. According to the working temperature. It can be divided into general boiler tubes and high-pressure boiler tubes. Some of the boiler pipes are made of carbon steel and alloy steel. Both carbon steel boiler tubes and alloy steel boiler tubes have different usage situations and temperature situations.



Size of boiler tube

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Manufacturing process of boiler tube

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Standard of boiler tube

Outer Diameter Tolerances

Standard

Outer Diameter

Tolerance

GB3087

≤180

±1.0%
(min: ±0.5mm)

GB5310


≤50

±0.5mm

>50

±1.0%


Wall Thickness Tolerances

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

&plusmn;10%


Chemical composition and 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 of boiler tube

  • Steam Boilers

  • Power Generation

  • Fossil Fuel Plants

  • Electric Power Plants

  • Industrial Process Plants

  • Co generation Facilities


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