Seamless pipes by Standard

Seamless pipes by standards include: ASTM, JIS, DIN, Customers for international

Automotive industry
DIN/EN steel pipe
GB steel pipes
JIS seamless pipes

Seamless pipes Execution Standard

We can makes and markets cold-drawn and hot rolled seamless steel pipes and cold-drawn special-section seamless pipes which are widely applied in the industries of petrochemical, boiler, automobile, mechanical, construction.

ASTM A106

Seamless Carbon Steel for High Temperature Service

ASTM A179

Seamless Cold-drawn Low-Carbon Steel Heat-Exchanger and Condenser Tubes

ASTM A192

Seamless Carbon Steel Boiler Tubes for High Pressure

ASTM A213

Seamless Ferritic and Austenitic Alloy Steel Boiler, Superheater and Heat-exchanger Tubes

ASTM A333

Standard Specification for Seamless and Welded Steel Pipe for Low-Temperature Service and Other Applications.

DIN 1629

Seamless Circular Tubes of Non Alloys Steels with Special Quality Requirements, it's main grades are St 37.0, St44.0, St52.0.

EN 10305

Are very popular in hydraulic and pneumatic power system, low-voltage circuit, power steering, fuel circuit and such.

DIN 2391

DIN 2391 standard specifies the Seamless steel tubes used forMechanical and Automobile.

ASTM A210/ASME SA210

Seamless medium-carbon steel boiler and superheater tubes, including a minimum wall thickness of the security side.



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.


SUNNY STEEL

Our team are highly trained and experienced in servicing and producing all types of steel supplies. Whether you've got a large construction project, or need parts for industrial machinery, our team of steel fabrication consultants will ensure that your project is provided with the parts you need, when you need them.

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