English | português | русский| Español

Haihao Group

hebeihaihao

Hebei Haihao High Pressure Flange Pipe Fitting Group Co fue fundada en 1982, ubicada en el condado de Mengcun-la ciudad natal de accesorios de tubería en China.


leer más sobre Haihao

current position:haihao group>produtos>Steel pipes

Steel pipes

En Haihao, fabricamos y disponemos de una gama mucho los productos de tubería de acero. Estos productos incluyen: tubos de acero, accesorios de tubería, bridas forjadas, en varias normas: AMSE / DIN / BS / ISO / JIS / GOST / etc y con diversos materiales: acero al carbono, acero de aleación, acero inoxidable. Podemos Promist calidad con ABS / API / ISO 2008 CERT.

Steel Pipe TypeSteel Pipe StandardsSteel Pipe Material

Steel Pipe Type


Casing Pipes

Steel Casing Pipe, also known as encasement pipe, is most commonly used in underground construction to protect utility lines of various types from getting damaged. Such damage ...


Cold Drawn Seamless Mechanical Steel tube and pipe

Cold-drawn steel pipe generally takes several times pulling in between each drawing a corresponding stress relieving, to ensure the smooth progress of the next cold drawn.Cold- ...


Electric resistance welded (ERW) pipe

Electric resistance welded (ERW) pipe is manufactured by cold-forming a sheet of steel into a cylindrical shape. Current is then passed between the two edges of the steel to he ...


Hot Rolled Steel Pipes

“Hot Roll” is the nickname for steel that has been produced in the “hot rolling” method, processed at temperatures above the recrystallization temperature of the material. Hot ...


Longitudinal-seam Submerged Arc Welded (LSAW) pipes

Longitudinal-seam Submerged Arc Welded (LSAW) pipes were made of steel plates cut from leveled hot rolled coils by both the JCOE and UOE (the forming process in which the plate ...


Seamless Steel Pipe

Seamless carbon steel pipesSeamless (SMLS) steel pipeis formed by drawing a solid billet over a piercing rod to create the hollow shell. As the manufacturing process does not i ...


Spiral submerged arc welding (SSAW) steel pipes

Spiral submerged arc welding (SSAW) is its forward direction and forming tube centerline hose reel molding angle (adjustable), side molding edge welding and weld them into a sp ...


Tubing Pipes

To an outsider, pipes andtubesmay seem like they should be synonymous. To a marine engineer, the measurements, standards and language used to distinguish the two couldn’t be mo ...


Steel Pipe Standards


API 5CT Casing and Tubing

The main steel grade of API 5CT: API 5CT J55, API 5CT K55, API 5CT N80, API 5CT L80, API 5CT P110. This International Standard is applicable to the following connections in acc ...


API 5L Line Pipe

API 5L Gr.B seamless steel pipesThe American Petroleum Institute specification API 5L covers seamless and welded steel line pipe. This is steel pipe for pipeline transportation ...


ASTM A197 Cupola Malleable Iron

Malleable iron is cast as white iron, the structure being a metastable carbide in a pearlitic matrix. Through an annealing heat treatment, the brittle structure as first cast i ...


ASTM A216 Steel Castings, Carbon, Suitable for Fusion Welding ...

STM A216 Steel Pipe1. Scope 1.1 This specification covers carbon steel castings for Valves, flanges, fittings, or other pressure-containing parts for high-temperature service a ...


ASTM A335 Seamless Ferritic Alloy-Steel Pipe for High-Tempera ...

ASTM A335 P11 SCH80 Ferritic Alloy-Steel PipeASTM A335 Standard Specification for Seamless Ferritic Alloy-Steel Pipe for High-Temperature ServiceThis specification covers seaml ...


ASTM A53 Pipe, Steel, Black and Hot-Dipped, Zinc-Coated, Weld ...

ASTM A53 Alloy Steel PipesASTM A53 Standard Spec. for Pipe, Steel, Black and Hot-Dipped, Zinc-Coated, Welded and Seamless1. Scope:This specification covers seamless and welded ...


BS 1387(EN 10255) screwed and socketed steel pipes

BS 1387:1985 has been withdrawn and replaced with the European standard EN 10255:2004 (implemented by UK national standard body as BS EN 10255:2004 “Non-alloy steel tubes ...


DIN 1629 Seamless tubes,pipes circular unalloyed steel

DIN1626 seamless steel ST42 pipeThe EN 10216 comprises several parts. The parts that are relevant to us are as follows:EN 10216 Part 1: non-alloy pipes with specified propertie ...


DIN 17175 seamless steel pipe for elevated temperature St35.8 ...

DIN17175 ST37 steel pipesDIN 17175 alloy steel pipe is just a big class,and it has many classifivations. We mainly produce DIN 17175 ST35.8,DIN 17175 ST45.8, and 10CrMo910 stee ...


DIN 2448 Seamless and welded steel pipes-EN 10220

Standard: DIN2448Steel Grade: St37, St45, St52DIN 2448:Seamless and welded steel tubes – Dimensions and masses per unit length; German version EN 10220:2002DNOuter Dimene ...


EN 10216 Seamless steel tubes for pressure purposes

The EN 10216 Euronorm replaces the old DIN 17175 and 1629 standards. This standard is designed for pipes used in pressure applications, such as a pipeline. This is why the asso ...


GB/T8163 Seamless steel tubes pipes for liquid service

1)GB/T8163 Seamless Pipe Sizes (O.D. x W.T):21.3 mm-914mm x 2m-60m 2)Standard:GB/T8163 3)GB/T8163 Seamless Pipe Steel Grade:20#,16MN,Q345B 4)Surface:oiled or black painted to p ...


GOST 20295 Steel welded pipes for gas and oil main pipelines

GOST 20295:Steel welded tubes for gas and oil main pipelinesGOST 20295 Steel welded tubes for gas and oil main pipelinesDescription This standard is applied to steel longitudin ...


JIS G3452 Carbon Steel Pipes for Ordinary Piping

JIS G3452 Carbon Steel Pipes for Ordinary Piping Summary:1. ScopeThis Japanese Industrial Standard specifies the carbon steel pipes, hereinafter referred to as the “pipes ...


Nf a49-145-78 Hot Finished Welded Pipes Suitable For Threading

Nf a49-145-78 Steel Tubes Hot Finished Welded Tubes Suitable For Threading (Similar to JIS)Possibility TemperatureMin Yield pointTensile StrengthTS334-1190320Min(SGP) 1. Chemic ...


Nf a49-146-75 Steel Tubes Unthreaded Plain Ended Welded Tubes ...

Nf a49-146-75 Steel Tubes Unthreaded Plain Ended Welded Tubes For Liquids (Similar to JIS)Possibility TemperatureMin Yield pointTensile StrengthTS34-a220330Min(SGP) 1. Chemical ...


Steel Pipe Material


15CrMo alloy steel pipe,15CrMo alloy tube

15CrMo alloy steel pipe15CrMo Alloy Steel Pipe Specification in GB/T 3077 Standard.Thickness: 8MM to 250 MMWidth: 1500mm to 4050mmLength: 3000mm to 15000mmHaihao Group is speci ...


API 5L Grade B Carbon Steel Seamless Line Pipes & Tubes

API 5L Gr.B seamless steel pipesThe American Petroleum Institute specification API 5L covers seamless and welded steel line pipe. This is steel pipe for pipeline transportation ...


API 5L Grade X42 Carbon Steel Seamless Pipes & Tubes

API 5L Grade X42 Carbon Steel Seamless Pipes & TubesThe American Petroleum Institute specification API 5L covers seamless and welded steel line pipe. This is steel pipe for ...


API 5L Grade X52 Carbon Steel Seamless Line Pipes & Tubes

API 5L Grade X52 Carbon Steel Seamless Line Pipes & TubesThe American Petroleum Institute specification API 5L covers seamless and welded steel line pipe. This is steel pip ...


API 5L Grade X56 Carbon Steel Seamless Line Pipes & Tubes

API 5L Grade X56 Carbon Steel Seamless Pipes & TubesThe American Petroleum Institute specification API 5L covers seamless and welded steel line pipe. This is steel pipe for ...


API 5L Grade X60 Carbon Steel Seamless Line Pipes & Tubes

API 5L General Information The API SPEC 5L specification provides standards for pipe suitable for use in conveying gas, water, and oil in the natural gas and oil industries. Th ...


API 5L Grade X65 Carbon Steel Seamless Line Pipes & Tubes

 API 5L Grade X65 Carbon Steel Seamless Pipes & TubesThe American Petroleum Institute specification API 5L covers seamless and welded steel line pipe. This is steel pi ...


API 5L Grade X70 Carbon Steel Seamless Line Pipes & Tubes

API 5L Grade X70 Carbon Steel Seamless Pipes & TubesThe American Petroleum Institute specification API 5L covers seamless and welded steel line pipe. This is steel pipe for ...


ASTM A106 Grade B Seamless Carbon Steel Pipe for High-Tempera ...

ASTM A106 Standard Specification for Seamless Carbon Steel Pipe for High-Temperature Service1. Scope1.1 This specification covers seamless carbon steel pipe for high-temperatur ...


ASTM A106 Grade C Seamless Carbon Steel Pipe for High-Tempera ...

ASTM A106 Grade C Seamless Carbon Steel PipeASTM A106 Grade C Seamless Carbon Steel Pipe for High-Temperature Service1. Scope1.1 This specification covers seamless carbon steel ...


ASTM A106 Seamless Carbon Steel Pipe for High-Temperature Service

ASTM A106 Carbon Steel Seamless PipesASTM A106 Standard Specification for Seamless Carbon Steel Pipe for High-Temperature Service1. Scope 1.1 This specification covers seamless ...


ASTM A312 TP304L Austenitic Stainless Steel Pipes for Seamles ...

ASTM A312 TP304L Stainless Steel for Seamless, Welded, and Heavily Cold Worked Austenitic Stainless Steel Pipes 1.1 This specification2 covers seamless, straight-seam welded, a ...


ASTM A312 TP316L Austenitic Stainless Steel Pipes for Seamles ...

ASTM A312 TP316L Stainless Steel Seamless Pipes Specification Type 316L is the low carbon version of 316 stainless. With the addition of molybdenum, the steel is popular for us ...


ASTM A312 TP321 Stainless Steel Seamless Pipes

ASTM A312 TP321 Stainless Steel Seamless Pipes SpecificationThis specification2 covers seamless, straight-seam welded, and heavily cold worked welded austenitic stainless steel ...


ASTM A333 Grade 6 Seamless Steel Pipe for Low-Temperature Service

ASTM A333 Grade 6 Seamless Steel Pipe for Low-Temperature ServiceASTM A333 Grade 6 Seamless Steel Pipe for Low-Temperature ServiceASTM A333 Standard covers seamless and welded ...


ASTM A335 P11 Seamless Ferritic Alloy-Steel Pipe for High-Tem ...

ASTM A335 P11 Seamless Ferritic Alloy-Steel PipeASTM A335 P11 Seamless Ferritic Alloy-Steel Pipe for High-Temperature ServiceThis specification covers seamless ferritic alloy-s ...


ASTM A335 P12 Seamless Ferritic Alloy-Steel Pipe for High-Tem ...

ASTM A335 P12 Seamless Ferritic Alloy Steel PipeASTM A335 Standard Specification for Seamless Ferritic Alloy-Steel Pipe for High-Temperature ServiceThis specification covers se ...


ASTM A335 P22 Seamless Ferritic Alloy-Steel Pipe for High-Tem ...

ASTM A335 P22 Seamless Ferritic Alloy Steel PipeASTM A335 P22 Seamless Ferritic Alloy-Steel Pipe for High-Temperature ServiceThis specification covers seamless ferritic alloy-s ...


ASTM A335 P91 Seamless Ferritic Alloy-Steel Pipe for High-Tem ...

ASME SA335 P91 Alloy steel pipeASTM A335 P91 Seamless Ferritic Alloy-Steel Pipe for High-Temperature ServiceThis specification covers seamless ferritic alloy-steel pipe for hig ...


ASTM A53 Grade A Carbon Steel Pipe, Steel, Black and Hot-Dipp ...

ASTM A53 Grade A Carbon Steel Pipe, Steel, Black and Hot-Dipped, Zinc-Coated, Welded and Seamless1. Scope:This specification covers seamless and welded black and hot-dipped gal ...


ASTM A53 Grade B:Standard Specification for Pipe, Steel, Blac ...

ASTM A53 Grade B Carbon Steel PipeASTM A53 Grade B Carbon Steel Pipe, Steel, Black and Hot-Dipped, Zinc-Coated, Welded and Seamless1. Scope:This specification covers seamless a ...


ASTM A671 CC65 Electric-Fusion-Welded Steel Pipe for Atmosphe ...

ASTM A671 CC65 Electric-Fusion-Welded Steel Pipe for Atmospheric and Lower TemperaturesASTM A671 CC65 Electric-Fusion-Welded Steel Pipe for Atmospheric and Lower TemperaturesEF ...


ASTM A671 CC70 Electric-Fusion-Welded Steel Pipe for Atmosphe ...

ASTM A671 CC70 Electric-Fusion-Welded Steel Pipe for Atmospheric and Lower TemperaturesASTM A671 CC70 Electric-Fusion-Welded Steel Pipe for Atmospheric and Lower TemperaturesEF ...


China GB 20G carbon steel pipes

20G, Boiler steel pipe Posted on 14 November, 2012 20G is the steel material of GB 5310- 2008. GB 5310- 2008 standard is applicable to seamless tubes for making steam boiler wh ...


DIN 17100 St 37-2 common carbon structure steel pipe

DIN St 37-3 N steel plate is a kind of carbon structural steel.DIN St 37-3 N steel plate Application:Structural steel is steel construction material, a profile, formed with a s ...


DIN 17175 seamless steel tube for elevated temperature St35.8 ...

DIN 17175 alloy steel pipe is just a big class,and it has many classifivations. We mainly produce DIN 17175 ST35.8,DIN 17175 ST45.8, and 10CrMo910 steel pipes. This alloy steel ...


DIN 2393 ST52-3 NBK Welded Precision Steel Tubes

DIN 2393 ST52-3 steels is a low alloy, high strength structural steel which can be readily welded to other weldable steel. With its low carbon equivalent, ST52-3 steel possesse ...


DIN2440 ST33.2 seamless carbon steel pipe and tube

DIN 2440 Grade St 33-2 standard applies to seamless tubes including tubes for headers of heat-resistant steels which are used in the construction of boilers, pipe-lines, pressu ...


EN 10025-2 S235JR hot-rolled structural steel

S235JR steel plate is one mainly of Carbon and low alloy steel, S235JR steel plate is a type of steel sheet under EN standard which is used to build ship, bridge, belongs to hi ...


EN P235GH steel for use in pressure vessels, boilers and heat ...

P235GH is a European specified steel for use in pressure vessels, boilers and heat exchangers. The composition of this steel makes it ideal for applications where elevated work ...


No. 1 Page,Total 2 Pages12

Haihao Group Twitter haihao group youtube haihao group facebook haihao group linkedin