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Hot-rolled Large Diameter Steel Pipe

Hot-rolled Large Diameter Steel Pipe

High Temperature Thin Wall Seamless 904L Stainless Steel Pipe 904L stainless steel pipe(00Cr20Ni25Mo4.5Cu) is a kind of austenitic stainless steel with better corrosion resistance. With the adding of 1.5% Cu, it also has excellent corrosion resistance for reductive acids such as sulfuric acid...

Description

Hot-rolled Large Diameter Steel Pipe uses the flyer board as the raw material, and the pressure (volume) of the steel plate or molding machine in the mold is double-sided submerged arc welding and production flaring. The consistency of the cutter head and the plate clamping system guarantees constant parameters throughout the milling process; therefore, it ensures the quality of the milling and lays a good foundation for the success of subsequent welding.

Application: pressure vessels, hydraulic cylinders,mechanical&engineering,fluid conveyance,structural use,bearings,etc.

Chemical Composition 

Name

C

Si

Mn

P

S

Cr

Ni

Mo

Cu

ASTM

≤0.02

≤1.00

≤2.00

≤0.045

≤0.035

19.00~23.00

23.00~28.00

4.0~5.0

1.00~2.00

Density

Steel Grade

Density(g/cm3)

304,304L,305,321 201,202,301,302

7.93

316,316L,347 309S,310S

7.98

405,410,420

7.75

409,430,434

7.7

Process

Oiling mark:

The steel is protected from corrosion after oiling and is produced according to user requirements.

Leveling milling:

The flat steel anvil machine curls the original and then double-sided steel milling with a side milling machine to meet the requirements of plate width, edge parallelism and groove shape.

Shear forming:

The steel sheet production line is formed along the outer edge of the spiral crimp.

Docking incision:

Advanced technology for pre-welding, internal welding, and external welding of double-sided submerged arc welding. Welded steel pipes of the specified length by plasma cutting.


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