1.4301 Material Large Diameter Seamless Steel Pipe DIN17440

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Hot-rolled Large Diameter Steel Pipe

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.

Features

1) The steel pipe is subjected to hot rolling treatment to significantly improve the processing property of the steel pipe, the steel pipe structure becomes dense, and the mechanical properties are improved.

2) This hot-rolled large diameter steel pipe has excellent chemical resistance, good alkali resistance, acid resistance, toughness and flame retardancy.

3) It is used in long distance pipeline projects because it can carry more liquid and large flow.

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.

We have professional quality management and testing. Our products are produced through strict quality control system. Our company focuses on helping our customers achieve one common goal that is to produce more quality 1.4301 Material Large Diameter Seamless Steel Pipe DIN17440 at a low price. We adhere to the basic value concept of honesty and trustworthiness, and maintain the basic work style of dedication and responsibility. Since the establishment of the enterprise, we have introduced and digested advanced industry technology at home and abroad with a down-to-earth style and a serious attitude.

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