Letter of thanks from Shinestar Group Chairman in Chinese New Year

Dear distinguished customers, colleagues and friends,

Trickling summed up a magnificent sea; ordinary footsteps, after the great journey. In the inspiration of centuries dream, in the endeavor of thousands of employees, Shinestar acrossed 2016 firmly and stably.

Over the past year, the global environment is not optimistic about the industry, we seize the opportunity to reform, with innovation to deal with challenges,to reform achievement to refresh the height.Shinestar group 20 subsidiaries, spare no effort and stride proudly ahead .On the management, establishment of Shinestar Steel Research Institute, standing in a global perspective, the industry highly, provide a full range of technical support for the enterprise.On production, always regard product as a cornerstone, changsha, yueyang, nanchang, tianjin 4 production base of improving technology, skilled in the pursuit of quality.On services, for global customers, adhere to empathy, and constantly improve the upgrade.Based on all aspects of efforts,Shinestar reaches on the stage of the domestic and international,strategizing, resourceful, has bucked the trend, and achieved good results.Won the 2016 Hunan top 100 enterprises, is the greatest affirmation to Shinestar over the past year.

Behind all of the achievements,embodies the forces from all sides,including the trust of global partners. Shinestar all staff's unremitting efforts, and friends from all walks of life for their help.Heartfelt thanks to everyone!

All the past is prologue.In 2017, still impregnable as iron, shinestar have heart of confidence, full force, defying dangers, temper forward, on the "to build a century of steel enterprises in the field of integrated services"way,continue to write a glorious page.


The future has come,and hope all of our hearts gather and make efforts toward one goal.2017, just roll up our sleeves to work harder.

LSAW and DSAW

LSAW steel Pipe O.D: Ф323.8～Ф1822.4mm
Pipe Length: Max.12.2m(40ft)
Wall Thickness: When the steel grade is X70,
the wall thickness ranges from 6.4 to 26.4mm(0.252--1.04in);
When the steel grade is lower, the wall thickness will be increased accordingly
Product Standard: ISO3183-3; API Spec 5L, GB9711, ASTM A53, ASTM A252 ASTM A500
Steel grade : GR.B ,X42, X46 ,X52,X56,X60,X65,X70 ,
API 5L PSL1 & API 5L PSL2
Capacity: The annual output is 0.2～0.3million tons

1.Application
The DSAW steel pipe are mainly used as long distance transportation pipeline for oil, gas, liquid coal etc. on land and offshore.
And also can be applied as construction pipes on offshore platform, power station, petrochemistry and city construction etc.

2.Major characteristics
① The pipe internal stress is very small and uniformly distributed after the full- length expansion. T
he corrosion and cracking of the pipe owing to stress can be effectively prevented.
The application of welding on site is very easy because of the high dimension precision;
② The inside and outside welding are performed after the tack welding ,
so the welding process is very stable with good weld quality;
③ The NDT is easy to perform on the weld during production and field operation as well;
④ The length of the weld is shorter than that of the non-longitudinal seam pipe, so the probability of defects occurrence is very low;
⑤ The coverage of the pipe specification is very wide. The welded steel pipe can be either in very large diameter with thick wall or in very small diameter with thick wall.

Cold Bending Hollow Section

Cold bending hollow section is a cold rolled or cold drawn after processing high thick wall carbon steel pipe; Because of cold bending steel hollow inside and outside wall without oxidation layer, under high pressure without leakage, high precision, high finish, cold bending deformation, flaring, flattening without cracks, etc, it is mainly used to produce pneumatic or hydraulic components products, such as a cylinder or cylinder, are made with seamless tube. The chemical composition of cold bending hollow section with carbon sulfur C, Si, Si, Mn, Mn, S, P, P, chromium Cr.

The characteristics of cold bending hollow section

1. The thick wall degree is high, saves machining user quantity at the time of the loss.

2. Specifications, wide range of applications.

3. Cold rolled products of high precision, good surface quality, straightness is good.

4. The steel pipe diameter can make hexagonal.

5. Structural steel pipe is superior performance, more dense metal.

Seamless steel pipe and round steel, compared to solid steel in the bending torsional strength phase at the same time, the weight is lighter, is a kind of economic cross section steel, widely used in the manufacture of structural and mechanical parts. Cold bending hollow section in inherits the advantages of mild steel pipe at the same time, also has some characteristics of its own. Made the ring parts with thick wall and can improve the material utilization, simplifying the manufacturing process, material saving and processing time, such as rolling bearing ring, jack sets, etc., has been widely made from cold bending hollow section. Application of cold bending hollow section to save steel, improve the machining efficiency and reduce the processing process or equipment investment is important, can save cost and processing time, increase production and material utilization, at the same time to improve product quality, reduce costs, to improve the economic benefit is important. Generally higher requirements on the thick wall of the industry by cold bending hollow section, mostly with which do not require degree of thick wall seamless tube, after all, the same specifications hollow cold bending steel price is higher than that of seamless tube.

Without leaking, bear high pressure, high precision, high finish, cold bending deformation, flaring, flattening without cracks, etc, it is mainly used to produce pneumatic or hydraulic components products, such as a cylinder or cylinder, are made with seamless tube. The chemical composition of cold bending hollow section with carbon sulfur C, Si, Si, Mn, Mn, S, P, P, chromium Cr.

More information,pls visit:Hunan Great Steel Pipe Co.,ltd

Steel Structure Industry of China

Seamless steel pipe for steel structure refers to the action of external force metal strength, the ability to resist plastic deformation and fracture. Mainly for the execution of the standard  structure with seamless steel tube is used for general structure and the mechanical structure of seamless steel tube. Seamless mild steel pipe for steel structure according to different structure, using the environment using different material, compressive ability is alloy steel material, high temperature resistance corrosion resistant stainless steel material. General conditions using carbon steel material, steel structure with seamless steel tube heat treatment including normalizing, tempering, quenching. Heat treatment's main purpose is to remove the magazine, make the internal organization of the pipe body more closely, enhance the mechanical properties of the pipe body.

Offshore oil production to reach 100 million tons in 2015, ocean engineering equipment enterprise's goal is to provide 1500 meters to 3000 meters deep mining with a large number of equipment, industry level and scale must be raised;  structural steel pipe housing with green environmental protection, energy conservation and emissions reduction and recycling economy policy, the industrialization, standardization of steel structure residential products have broad and unlimited market space; At present, the country's 590000 highway bridge steel structure bridge is less than 1%, the high-speed railway system development, the new line to bridge the generation road, 80% are prestressed concrete Bridges. And steel bridge in Japan accounted for 41%, the United States accounted for 33%, so the market demand and industry development of China's steel bridge also has the very big disparity with the developed countries.

Around the successful construction of major steel structure, steel structure comprehensive technical level of our country is in the international advanced level. But China's steel structure industry in industry informatization, since can occupy more market, will be included in the planning and support, and supporting policies. Opportunity is to choose

Structural steel pipe industry in China during recent 10 years rapid development, has become a global steel structure construction, manufacturing capacity, the industrial scale, the strongest enterprise scale with the world's largest steel structure.

More information ,pls visit:Hunan Great Steel Pipe Co.ltd

Some Information about Welded Steel Pipe

Metric system welded tube:

The metric system welded steel pipe is made from the common carbon steel, quality carbon steel or low alloy steel with the hot and cold welding or after hot welded by the cold again. The specification adopts the seamless steel pipe form with outside diameter*wall thickness (mm). The common metric system welded tube is usually used as structural elements like axis of rotation or transporting the fluid etc. The thin-walled tube is utilized for processing furniture, lamps and lanterns. But the manufacturers need to guarantee the strength and bending of steel pipe in the processing. 

Spiral welded tube:

The spiral welded tube uses low carbon structural steel pipe or low alloy structural steel strip according to certain helix angle (forming angle) rolled into a tube billet, then welded the pipe joints to be made. The spiral welded tube can use narrow strip steel to produce large diameter carbon steel pipe. It is broadly applied as oil or natural gas pipeline. Moreover, spiral welded pipe has one side welding and double sided welding.

Cement Mortar Lining Coating Steel Pipe

Cement mortar lining can ensure a safe and abundant water supply for your water customers for many years to come. Cement will also extend pipe life by inhibiting the corrosion of ferrous materials and preventing future rust and tube regulation build up.

Water pipe or pipe through the centrifuge tube wall spraying machine in the formation of 8 - 16 mm of cement coating steel pipe, a major role in the protection of water quality. Imperial produces quality linings per AWWA standard C-205, API practice 10E, or per your Custom-specified mix. A durable, cost-effective, timeproven choice for protecting steel pipe interiors for over a Century. Appropriate for above or below-ground applications in potable and reclaimed water systems. 

Diameter range is Φ325 - Φ2220

Inspection: Hydraulic Testing, Eddy Current, Infrared Test; 
The thired party, SGS, BV, can be accepted. 

Certificate: Certificate: API 5L, API 5CT. ISO 9001; CE and so on.
Resistant to chemical corrosion, resistance to cathodic disbondment resistance, mechanical damage to properties.

More information about coating steel pipe,pls visit:Hunan Great Steel Pipe Co.,ltd

Application and Major Characteristics of DSAW Steel Pipe

DSAW steel Pipe O.D: Ф323.8～Ф1822.4mm
Pipe Length: Max.12.2m(40ft)
Wall Thickness: When the steel grade is X70, 
the wall thickness ranges from 6.4 to 26.4mm(0.252--1.04in);
When the steel grade is lower, the wall thickness will be increased accordingly
Product Standard: ISO3183-3; API Spec 5L, GB9711, ASTM A53, ASTM A252 ASTM A500
Steel grade : GR.B ,X42, X46 ,X52,X56,X60,X65,X70 ,
API 5L PSL1 & API 5L PSL2

Capacity: The annual output is 0.2～0.3million tons

1.Application
The carbon steel pipe are mainly used as long distance transportation pipeline for oil, gas, liquid coal etc. on land and offshore.
And also can be applied as construction pipes on offshore platform, power station, petrochemistry and city construction etc.

2.Major characteristics
① The pipe internal stress is very small and uniformly distributed after the full- length expansion. T
he corrosion and cracking of the pipe owing to stress can be effectively prevented.
The application of welding on site is very easy because of the high dimension precision;
② The inside and outside welding are performed after the tack welding ,
so the welding process is very stable with good weld quality;
③ The NDT is easy to perform on the weld during production and field operation as well;
④ The length of the weld is shorter than that of the non-longitudinal seam pipe, so the probability of defects occurrence is very low;
⑤ The coverage of the pipe specification is very wide. The mild steel pipe can be either in very large diameter with thick wall or in very small diameter with thick wall.