Seamless Steel Tube Outside 20mm Inner Diameter 5 Iron Tube Outside 16 Inside 12 Wall

Seamless Steel Tube Outside 10 12 13 14 15 16 18 20 Mm Inner Diameter 5 Iron Tube Outside 16 Inside 12 Wall

By production method
Steel pipe can be divided into two categories according to the production method: seamless steel pipe and welded steel pipe, welded steel pipe is referred to as welded pipe.
1. Seamless steel pipe can be divided into: hot rolled seamless pipe, cold drawn pipe, precision steel pipe, hot expansion pipe, cold spinning pipe and extrusion pipe, etc.
Bundles of steel pipes
Bundles of steel pipes
Seamless steel tube is made of high quality carbon steel or alloy steel, hot rolled, cold rolled (drawn) points.
2. Welded steel pipe is divided into furnace welding pipe, electric welding (resistance welding) pipe and automatic arc welding pipe because of its different welding form is divided into straight seam welding pipe and spiral welding pipe, because of its end shape is divided into round welding pipe and shaped (square, flat, etc.) welding pipe.
Welded steel pipe is made of rolled tubular steel plate welded to the seam or spiral seam. In terms of manufacturing methods, it can be divided into welding steel pipe for low-pressure fluid transportation, spiral seam welding steel pipe, direct coil welding steel pipe, electric welding pipe and so on. Seamless steel pipe can be used in various industries, such as liquid pressure pipe and gas pipe. Welded pipes can be used for water pipelines, gas pipelines, heating pipes, electrical pipes and so on.
The material classification
Steel pipe can be divided into carbon pipe, alloy pipe, stainless steel pipe and so on.
Carbon pipe can be divided into ordinary carbon steel pipe and high quality carbon structure pipe.
Alloy tube can be divided into: low alloy tube, alloy structure tube, high alloy tube, high strength tube. Bearing tube, heat and acid resistant stainless tube, precision alloy (such as cutting alloy) tube and high temperature alloy tube, etc.
Connection type classification
Steel pipe can be divided into light pipe (pipe end without thread) and wire pipe (pipe end with thread) according to the connection mode of pipe end.
Wire tube is divided into: ordinary wire tube and tube end thickened wire tube.
Thickening wire pipe can also be divided into: outer thickening (with external thread), inner thickening (with internal thread) and inner and outer thickening (with internal and external thread) and other ground wire pipe.
If the thread type can also be divided into: ordinary cylindrical or conical thread and special thread and other ground thread tube.
In addition, according to the needs of users, wire pipes are generally equipped with pipe joints delivery.
Classification of plating characteristics
According to the surface coating characteristics of steel tube can be divided into: black tube (not coated) and coated tube.
Galvanized pipe, aluminum pipe, chromium pipe, aluminized pipe and other alloy layer of steel pipe.
Coating pipe has outer coating pipe, inner coating pipe, inner and outer coating pipe. Commonly used coatings are plastic, epoxy resin, coal tar epoxy resin and a variety of glass anti-corrosion coating materials.
Galvanized pipe is divided into: KBG pipe, JDG pipe, threaded pipe and so on.

TOBO GROUP sales head offce in Shanghai.

We are one of the Professional manufacturers Exporter Pipeline products in China .Our company was established in 1998, the plant covers 550, 000 square meters and a construction area of 6,8,000square meters, existing 260 workers and 45 technicians.

We have five branch factories which can supply the best quality pipes, tubes, fittings flanges and related accessories. Now, it owns a number of advanced pipe production equipments, metal, forging, machining, cold forming, hot extrusion, such as heat treatment process, producing 60, 000 tons of pipe fittings. Company with a variety of detection devices, such as nondestructive testing, chemical analysis, metallographic examination, physical experiments. The technical is very strength, our main products contain fittingsforged socket welding fittings and threaded fittings, pipe weld and the materials of the products contain stainless steel ,duplex-stainless steel alloy steel.

In addition, we are authorized by more than 120 top-class mills from South Korea,Japan and China like JFE,SUMITOMO,POSCO,BAOSTEEL, TISCO,LISCO,.TPCO,HENGYANG VALIN and so on .

Our main products as follows:

• Stainless steel pipe & tube

(seamless pipe / welded pipe / square pipe / rectangular tube,duplex stainless / inconel tube)

• Carbon / alloy steel pipe & tube

(seamless pipe / ERW / SSAW / LSAW / UOE / hollow section pipe / Galvanized Pipe)

• Tubing and casting

(line pipe,water pipeline,gas pipeline,oil pipeline)

• Special steel tube

(copper tube/titanium tube/aluminium tube/nickel alloy )

• steel bar

(round bar/angle steel /flat steel/channel steel/steel wire)

• Pipe Fittings

(eblows, equal / reducing tees, concentric/eccentric reducers, caps, crosses, bends, dish end/end cup, stub ends, unions, couplings / hex couplings, swage nipples , nipples, hex. plug, sockolet, weldolet, thredolet, etc)

• Flange

(DIN flange/ AISI flange/blind flange/welding flange/stainless flange/slip on flange)

• steel sheet / coil

(stainless steel/carbon steel/alloy steel/galvanized steel/aluminium )

• Valve

(ball valve/gate valve/butterfly valve/globe valve/swing check valve/ check valve)

In order to comply with the global modernization services development trends and eliminating the varieties distress of the global enterprise‘s purchase in the consumables.. We coordinate the pressure pipe manufacturer which with the scale of production,quality control and high cost performance (has passed ISO 9001 quality series attestation, ccs, DNV,PED/97/23/EC,AD2000-WO,special equipment manufacturing license,ASME-SA182.through a variety of effective assort mechanism to make up the shortage of supply and Post-processing of VAT enterprise, and to supply high quality pipe fittings, because of the superior quality and good service, we have established long term business cooperation with more than 60 countries and areas,which covers Europe, Africa, South America, North America, Middle East, Taiwan and South East Asia and so on.

With many years effort and support from our valuable customers, these products have obtained a big market share in the world.

Our business principle is "Superior quality, Competitive price, Timely delivery and Considerate service " Standing to the principle of “Enterprises focus on the core business”, TOBO will actively promotes the globalization of business strategy approach, using advanced supply chain management technology to service for clients with higher quality and more competitiveness ‘ s products. At the same time, we sincerely reply your inquiry, honesty waiting for your visiting and wish to have cooperation with you at the any time. We welcome all the customers to contact us for more information. We assure you, with our technical knowledge and experience, our company will be one of your Stable, Continuate business parters in China.

info@tobo-group.com