JawaySteel is the largest supplier of metal products in mainland China. We were founded in 1998. During this development for more than 20 years, we have made friends from all over the world and are also very good friends.
This is a carbon steel pipe by JawaySteel related introduction.
Carbon Steel Pipe
The carbon steel pipe is made of a steel ingot or a solid round steel through a perforation, and then is formed by hot rolling, cold rolling or cold drawing.
Classification
Carbon steel pipes are divided into hot rolling and cold rolling (pulling) steel pipes.
Hot-rolled carbon steel pipe
Hot-rolled carbon steel pipes are divided into general steel pipes, low and medium pressure boiler steel pipes, high pressure boiler steel pipes, alloy steel pipes, stainless steel pipes, petroleum cracking pipes, geological steel pipes and other steel pipes.
Cold-rolled carbon steel pipe
Cold-rolled (dial) carbon steel pipe is divided into general steel pipe, low and medium pressure boiler steel pipe, high pressure boiler steel pipe, alloy steel pipe, stainless steel pipe, petroleum cracking pipe, other steel pipes, and also includes carbon thin-walled steel pipe, alloy thin-walled steel pipe, Rust thin-walled steel pipe, special-shaped steel pipe.
The outer diameter of hot-rolled seamless pipe is generally larger than 32mm, the wall thickness is 2.5-75mm, the outer diameter of cold-rolled seamless steel pipe can be up to 6mm, the wall thickness can be up to 0.25mm, the outer diameter of thin-walled pipe can be 5mm, and the wall thickness is less than 0.25mm. Cold rolling is more accurate than hot rolling.
General carbon steel pipe: It is made of low-alloy structural steel such as 16Mn, 5MnV, such as 10, 20, 30, 35, 45, etc., or alloy steel such as 40Cr, 30CrMnSi, 45Mn2, 40MnB, etc., which is hot rolled or cold rolled.
Seamless pipes made of low carbon steel such as 10 and 20 are mainly used for fluid conveying pipes.
45, 40Cr and other medium carbon steel seamless pipes are used to make mechanical parts, such as the force parts of automobiles and tractors. Generally, carbon steel pipes are required to ensure strength and flattening tests. The hot rolled steel pipe is delivered in a hot rolled state or a heat treated state; the cold rolling is delivered in a heat treated state.
Preparation
The raw material of the carbon steel pipe is a round tube blank, and the round tube embryo is cut into a blank having a length of about 1 m by a cutting machine, and sent to a furnace for heating through a conveyor belt.
The billet is fed into a furnace and heated to a temperature of approximately 1200 degrees Celsius. The fuel is hydrogen or acetylene. Furnace temperature control is a key issue. After the round billet is released, it is subjected to a through-hole punching machine.
The more common perforating machine is a conical roller punching machine. This perforating machine has high production efficiency, good product quality, large diameter of perforation and can wear a variety of steel types.
After perforation, the round billet is successively rolled, rolled or extruded by three rolls. After extrusion, the tube should be sizing. The sizing machine is rotated at a high speed by a conical drill bit into a steel core to form a steel pipe.
The inner diameter of the steel pipe is determined by the outer diameter of the sizing machine drill bit. After the steel pipe has been sized, it enters the cooling tower and is cooled by water spray. After the steel pipe is cooled, it is straightened.
After the steel pipe is straightened, it is sent to a metal flaw detector (or water pressure test) by a conveyor belt for internal flaw detection. If there are cracks inside the steel pipe, bubbles and other problems will be detected.
After the quality inspection of the steel pipe, it must be carefully selected by hand. After the quality inspection of the steel pipe, the paint is sprayed with the number, specification, production batch number, etc. It is hoisted into the warehouse by a crane.
Carbon Steel Pipe By JawaySteel
| Standard | AISI,ASTM,BS,DIN,GB,JIS | |||||||||
| Thickness | According to customer requirements | |||||||||
| Width | According to customer requirements | |||||||||
| Length | According to customer requirements | |||||||||
| Tests | SGS or other third party inspection is accept | |||||||||
| Package | Standard export seaworthy package,suit for all kinds of transport,or as required. | |||||||||
| Bulk Size | Any size | |||||||||
| Price term | Ex-Work,FOB,CNF,CFR,CIF,etc | |||||||||
| Export to | Ireland,Singapore,Indonesia,Ukraine,Saudi Arabia,Spain,Canada,USA, Thailand, Brazil, Korea,Iran,India,Egypt,Oman,Malaysia,Angola,etc | |||||||||
| Application | Widely used in construction and engineering structure. Making for steel rod or workshop frame,ultrahigh-tension transmission tower,bridge,vehicles,boiler,container,ship and so on. Widely used in some mechanical parts which do not need high quality. C and D grade steel plate also can used in some speciality steel. | |||||||||
Carbon Steel Pipe Sizes and Stocks By JawaySteel
| Sizes | Stocks |
| 13*2 | 68Ton for sales |
| 16*4 | 87Ton for sales |
| 18*3.5 | 89Ton for sales |
| 19*3 | 66Ton for sales |
| 22*3 | 107Ton for sales |
| 25*5 | 116Ton for sales |
| 40*12 | 135Ton for sales |
| 50*16 | 168Ton for sales |
| 68*25 | 187Ton for sales |
| 80*25 | 68Ton for sales |
| 89*10 | 95Ton for sales |
| 95*10 | 105Ton for sales |
| 102*30 | 116Ton for sales |
| 133*35 | 125Ton for sales |
| 273*40 | 118Ton for sales |
| 299*45 | 126Ton for sales |
| 351*68 | 133Ton for sales |
| 377*68 | 166Ton for sales |
