Boiler and superheater seamless carbon steel pipe

Seamless medium carbon steel tube with minimum wall thickness for boiler tube and boiler flue tube including safety end, vault and support tube and superheater tube.

Usage:Seamless medium carbon steel tube with minimum wall thickness for boiler tube and boiler flue tube including safety end, vault and support tube and superheater tube.

Standard:

Steel grade:

DIN/EN steel pipe
GB steel pipes
JIS seamless pipes

Mechanical Properties:

Grade C(Max) Mn Si(Min) P(Max) S(Max)
A1 0.27 Max.0.93 0.10 0.035 0.035
C 0.35 0.29~1.06 0.10 0.035 0.035

Chemical composition:

Grade Tensile Strength(Mpa) Yield Strength(Mpa) Elongation (%)
A1 ≥ 415 ≥ 255 ≥ 30
C ≥ 485 ≥ 275 ≥ 30

Outside Diameter & Tolerance

Hot rolled Outside Diameter, mm Tolerance, mm
OD≤101.6 +0.4/-0.8
101.6<OD≤127 +0.4/-1.2
Cold Drawn Outside Diameter, mm Tolerance, mm
OD<25.4 ±0.10
25.4≤OD≤38.1 ±0.15
38.1<OD<50.8 ±0.20
50.8≤OD<63.5 ±0.25
63.5≤OD<76.2 ±0.30
76.2≤OD≤101.6 ±0.38
101.6<OD≤127 +0.38/-0.64

Wall thickness & Tolerance

Hot rolled
Outside Diameter , mm Tolerance, %
OD≤101.6, WT≤2.4 +40/-0
OD≤101.6, 2.4<WT≤3.8 +35/-0
OD≤101.6, 3.8<WT≤4.6 +33/-0
OD≤101.6, WT>4.6 +28/-0
OD>101.6, 2.4<WT≤3.8 +35/-0
OD>101.6, 3.8<WT≤4.6 +33/-0
OD>101.6, WT>4.6 +28/-0
Cold Drawn Outside Diameter , mm Tolerance, %
OD≤38.1 +20/-0
OD>38.1 +22/-0

Length: 5800mm; 6000mm; 6096mm; 7315mm; 11800mm; and so on. 

Max length: 25000mm, also U bending can be offered.

Keyword: boiler steel pipe, ASTM A210, ASME SA210, SA210A1

Delivery Condition:

Surface treatment:

Application:

Both ends of each crate will indicate the order no., heat no., dimensions, weight and bundles or as requested.



Tech & Service of Seamless pipe

Seamless pipes are extensively applied for the nuclear device, gas, petrochemical, ship building and boiler industries. Seamless pipes dominates 65% of market share in Chinese boiler industry.

How to make seamless pipe(seamless pipe process)?
Hot Piercing Workshop
Piercing process
The cross roll piercing and pilger rolling process in the size range from approx. 250 to 660 mm outside diameter.
Precision cold drawn steel tube production process
Pipe weld cracks
often follow different mechanisms can be divided into two types of thermal cracking and cold cracking.
How to calculate a steel pipe and tube theoretic weight
Calculate a steel pipe?
Pipe fittings are necessary to join together pipes, or to change the direction of an existing pipe.
Pipe beveling
Pipe beveling is the process where an angle is formed between the edge of the end of a pipe or tube and a plane perpendicular to the surface.
Steel pipe cutting machine
Pipe cutting
Cutting tools have a grinding wheel piece cutting machine (also known as toothless saw), hand saw, cutter and other hand tools.
Packing the steel pipes
There are probably hundreds of different methods for packing a pipe, and most of them have merit, but there are two principles that are vital for any method.


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