High precision seamless steel pipes from China manufacturer - Tianjin Hang Kai Duo International Trade Co.,Ltd.

Payment Terms:	T/T,L/C,WU
Place of Origin:	Tianjin, China (Mainland)


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Product Detail

Means of Transport: Ocean

Packing: in bundles,knit bags, plywo...

Technique: Seamless

Grade: 45 # Steel

Type: Thick-walled

Production Capacity: 200000 Metric Ton/Metric To...

Delivery Date: 30~90 days

Brand Name: HKD

Material: Steel products

1.certificate:API&ISO
2.brand:shandong xinghua steel
3: Place of origin:CN

45 # thick-walled seamless steel pipe

1)The common materials and standards are as follows:

20#and Q235.Technical Standard:API 5LB,ASTM A 106 GR.B,ASTM A53 GR.B;High-pressure boiler pipe GB53101995,Special pipe for fertilizer making GB6479-2000,pipe for petroleum cracking GB9948-2000,low-and-medium-pressurre boiler pipe GB3087-1999,Fluid pipe GB/t8163-1999,structural pipe GBT8162-1999 and hydraulic support pipe GB/T17396-1998.

2)OD:6-610mm

3)WT:1.5-40mm

4)Packing: according to the requirment of customers.

5)Delivery time: within 25-30 days after the shippment.

Seamless steel pipe specifications usually outside diameter * thickness (unit: mm), said. Seamless steel pipe production methods can be divided into hot-rolled seamless steel tubes and cold-rolled (allocated) seamless steel pipe two categories. Hot-rolled seamless steel pipe is divided into general steel pipes, low and medium pressure boiler pipe, high-pressure boiler steel pipes, alloy steel pipe, stainless steel, petroleum cracking tubes, geological steel pipe and other pipe and so on. Rolled (allocated) seamless steel Subject to sub-general steel pipe, low and medium pressure boiler pipe, high-pressure boiler steel pipe, steel pipe, stainless steel pipe, petroleum cracking tubes, other steel pipes, including precision steel tubes, carbon steel tubes, alloy thin wall steel pipe, stainless steel tubes and shaped steel tubes.

Generally greater than the hot-rolled seamless pipe diameter 32mm, wall thickness 2.5-75mm, rolled seamless steel pipe outside diameter to 6mm wall thickness can be 0.25mm, outer diameter thin-walled tube to 5mm wall thickness less than 0.25mm , cold than hot-rolled dimensional accuracy. Diameter more than 57mm in the pipeline project, often used in hot-rolled tube, diameter less than 57mm when used cold drawn (rolled) pipe.

General seamless steel pipe to ensure the strength and flattening test. Hot-rolled steel, hot-rolled state or heat treatment delivery; cold rolling to heat treatment delivery. Hot, as the name implies, the rolling temperature deformation resistance of the small and large deformation. Steel plate rolling, for example, general billet thickness of about 230mm, rough rolling and finish rolling, the final thickness of 1 ~ 20mm. At the same time, due to the steel plate width to thickness ratio is small, the dimensional accuracy requirements are relatively low, not prone to the flatness problem, mainly to control the crown. Requirements for the organization, usually by controlled rolling and cooling to achieve, that is, finishing the rolling temperature, finish rolling temperature and coiling temperature to control the microstructure and mechanical properties of the strip.