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HDT Tubing is one of the largest steel manufacturers and suppliers china. Main products Steel pipe,Steel coil,steel plate,Aluminium.We are looking for steel agents and distributors all over the world.
HDT Tubing
How to choose precision special-shaped copper tube square and rectangular tube LDY-PY32
How to choose precision special-shaped copper tube square and rectangular tube LDY-PY32
How to choose precision special-shaped copper tube square and rectangular tube LDY-PY32
How to choose precision special-shaped copper tube square and rectangular tube LDY-PY32
How to choose precision special-shaped copper tube square and rectangular tube LDY-PY32

How to choose precision special-shaped copper tube square and rectangular tube LDY-PY32

Brand
HDT steel
length
6-12m
standard
GB/ASTM/JIS/DIN
Delivery time
7-15 days
payment method
T/T L/C
Product customization
Yes
Sales type of goods
Warehouse stock
Goods settlement method
Settlement by actual weight
The seamless steel pipe is formed by perforating the whole round steel after heating, and the steel pipe without gaps on the surface is called seamless steel pipe. Precision square pipes, special-shaped square pipes, copper pipes, and square rectangular pipes are all types of seamless steel pipes. Pay attention to the skills of choosing seamless steel pipes. According to the production method, seamless steel pipes can be divided into hot-rolled seamless steel pipes, cold-rolled seamless steel pipes, etc. Seamless steel pipes are mainly used as petroleum geological drilling pipes, cracking pipes for petrochemical industries, boiler pipes, bearing pipes and high-precision structural steel pipes for automobiles, tractors and aviation.

seamless-carbon-steel-pipe-specifications.jpg

Different products of seamless steel pipes

The seamless steel pipe is formed by perforating the whole round steel after heating, and the steel pipe without gaps on the surface is called seamless steel pipe. According to the production method, seamless steel pipes can be divided into hot-rolled seamless steel pipes, cold-rolled seamless steel pipes, cold-drawn seamless steel pipes, extruded seamless steel pipes, and pipe jacking. According to the cross-sectional shape, the seamless steel pipe is divided into two types: round and special-shaped. The maximum diameter is 900mm and the minimum diameter is 4mm. According to different uses, there are thick-walled seamless steel pipes and thin-walled seamless steel pipes. Seamless steel pipes are mainly used as petroleum geological drilling pipes, cracking pipes for petrochemical industries, boiler pipes, bearing pipes and high-precision structural steel pipes for automobiles, tractors and aviation.

product name

Spot material

Executive standard

Spot Specifications

Applications

Alloy tube

12Cr1MoVG

12CrMoG

15CrMoG

12Cr2Mo<A335P22>

Cr5Mo<A335P5>

Cr9Mo<A335P9>

10Cr9Mo1VNb<A335P91>

15NiCuMoNb5<WB36>

12Cr2MoWVTiB<102>

GB5310-1995

GB6479-2000

GB9948-2006

DIN17175-79

ASTM SA335

ASTM SA213

JISG3467-88

JISG3458-88

∮8-1240*1-200

Suitable for seamless steel pipes for high temperature, low temperature and corrosion resistance in petroleum, chemical, electric power and boiler industries

stainless steel pipe

0Cr18Ni9<304>

00Cr19Ni10<304L>

00Cr25Ni20<310S>

0Cr17Ni12Mo2<316>

00Cr17Ni14Mo2<316L>

1Cr18Ni9Ti<321>

0Cr18Ni10Ti

0Cr18Ni11Nb<347>

GB/T14975-2002

GB/T14976-2002

GB13296-2007

ASTM A213

ASTM A269

ASTM A312

JIS G3459

DIN 17458

∮6-630*0.5-60

Suitable for petroleum, aviation, smelting, food, water conservancy, electric power, chemical industry, chemistry, chemical fiber, pharmaceutical machinery and other industries

Cold tube

16MnDG10MnDG09DG

09Mn2VDG06Ni3MoDG

ASTM A333Grade1

ASTM A333Grade3

ASTM A333Grade4

ASTM A333Grade6

ASTM A333Grade7

ASTM A333Grade8

ASTM A333Grade9

ASTM A333Grade10

ASTM A333Grade11

GB/T18984-2003

ASTM A333

∮8-1240*1-200

Suitable for -45℃~-195℃ grade low temperature pressure vessel pipes and seamless steel pipes for low temperature heat exchanger pipes

High pressure boiler tube

20G

ASTM SA106B/C

ASTM SA210A/C

ST45.8-III

GB5310-1995

ASTM SA106

ASTM SA210

DIN17175-79

∮8-1240*1-200

Suitable for manufacturing high pressure boiler heating tubes, headers, steam pipes, etc.

High pressure fertilizer pipe

10

20

16Mn

GB6479-2000

∮8-1240*1-200

It is suitable for chemical equipment and pipelines with working temperature of -40--400℃ and working pressure of 10-32Mpa

Petroleum Cracking Tube

10

20

GB9948-2006

∮8-630*1-60

Furnace tubes, heat exchanger tubes and pipes for petroleum refineries

Low and medium pressure boiler tubes

10#

20#

16Mn<Q345A.B.C.D.E>

GB3087-2008

∮8-1240*1-200

Suitable for manufacturing low-pressure and medium-pressure boilers and locomotive boilers of various structures

delivery fluid tube

10#20#

ASTM A106A,B,CA53A,B

16Mn<Q345A.B.C.D.E>

GB/T8163-2008

ASTM A106

ASTM A53

∮8-1240*1-200

General seamless steel pipe suitable for conveying fluids

General Structural Pipe

10#20#45#27SiMn

ASTM A53A,B

16Mn<Q345A,B,C,D,E>

GB/T8162-2008

GB/T17396-1998

ASTM A53

∮8-1240*1-200

Suitable for general structures, engineering supports, machining, etc.

Oil Casing

J55K55N80L80

C90C95P110

API SPEC 5CT

ISO11960

∮60.23-508.00

*4.24-16.13

Tubing is used to extract oil or natural gas in oil wells Casing is used as the wall of oil and gas wells

line pipe

ABX42X46X52X56X60X65X70X80

L245L290L360L415L450

API SPEC 5L

GB/T9711.1

GB/T9711.2

∮32-1240*3-100

Oxygen, water and oil delivery pipes in the oil and gas industry

Straight seam steel pipe

20Q195Q215A,B

Q235A,BQ345A,B,C,D,E

GB/T13793-1992

GB3091-2001

∮32-630*1-30

Suitable for general structural supports, low pressure fluid delivery, etc.

Spiral steel pipe

Q235A-BQ345A-E

SY/T5037-2000

219-2820*4-20

Steel pipes for low pressure fluid transport

How-to-choose-seamless-steel-pipe.jpg

How to choose seamless steel pipe

Seamless steel pipes can be divided into round pipes and special-shaped pipes according to the shape of the cross-sectional area. Since the area of the circle is the largest under the condition of equal perimeter, more fluid can be transported with a circular tube. In addition, when the ring section is subjected to internal or external radial pressure, the force is relatively uniform. Therefore, most steel pipes are round pipes. However, due to the limitations of round pipes, for example, under the condition of plane bending, round pipes are not as strong as square and rectangular pipes. Special-shaped steel pipes with other cross-sectional shapes are also required according to different purposes. In appearance, the cold-rolled seamless steel pipe is shorter than the hot-rolled seamless steel pipe. The wall thickness of the cold-rolled seamless steel pipe is generally smaller than that of the hot-rolled seamless steel pipe, but the surface looks brighter than the thick-walled seamless steel pipe, and the surface is not too much. Much rough, and the caliber doesn't have too many burrs. The delivery state of hot-rolled seamless steel pipe is generally that the hot-rolled state is delivered after heat treatment.

seamless-steel-pipe.jpg

Precision special-shaped copper tube square and rectangular tube in seamless steel tube

  • Precision steel pipe is a high-precision, high-brightness seamless steel pipe produced by cold drawing or cold rolling. Its inner and outer diameters can be accurate to within 0.1mm, while ensuring the same bending and torsional strength, the weight is lighter, so it is widely used in the manufacture of precision mechanical parts. Mainly used in chemical, petroleum, medicine, food, energy, electric power, aerospace, environmental protection, boiler heat exchanger and other fields

  • Special-shaped seamless steel pipe is a general term for seamless steel pipes with other cross-sectional shapes other than round pipes. Such as square, rectangle, cone, trapezoid, spiral, etc. It can better adapt to the particularity of the conditions of use, save metal and improve the labor productivity of parts manufacturing. It is widely used in aviation, automobile, shipbuilding, mining machinery, agricultural machinery, construction, textile and boiler manufacturing. According to the shape, it is divided into: outer hexagonal inner round steel pipe, outer circular inner hexagonal steel pipe, inner and outer hexagonal steel pipe, flat oval steel pipe, oval steel pipe, triangular pipe, L-shaped steel pipe, octagonal pipe, mushroom-shaped pipe, bread-shaped pipe, D-shaped pipe , Concave-shaped pipe, convex-shaped pipe, umbrella-shaped pipe, P-shaped pipe, ingot-shaped pipe and other special-shaped steel pipes, the shape of special-shaped steel pipes is produced according to user needs.

  • The seamless square tube is a long strip of steel with a hollow section and no joints around the periphery. The inside of the pipe is hollow, with a certain cross-sectional area, and is used in large quantities as pipelines for transporting fluids, such as pipelines for transporting oil, natural gas, gas, water and certain solid materials, etc.

  • Copper tube is a kind of non-ferrous metal tube, often divided into brass tube and copper tube, which are pressed and drawn seamless tubes. Copper pipes have the characteristics of good electrical conductivity and thermal conductivity, and are the main materials for conductive fittings and heat dissipation fittings of electronic products, and have become the first choice for modern contractors to install water pipes, heating and cooling pipes in all residential commercial buildings. The copper pipe has strong corrosion resistance and is not easy to be oxidized.

seamless-steel-pipe-production-process.jpg

The production process of seamless steel pipe

①The main production process of hot-rolled seamless steel pipe (△main inspection process):

Tube blank preparation and inspection△→tube blank heating→piercing→tube rolling→steel reheating→fixed (reduced) diameter→heat treatment△→finished pipe straightening→finishing→inspection△(non-destructive, physical and chemical, Taiwan inspection) → storage

②The main production process of cold-rolled (drawn) seamless steel pipe:

Billet preparation→pickling lubrication→cold rolling (drawing)→heat treatment→straightening→finishing→inspection

seamless-carbon-steel-pipe.jpg

HDT.jpg


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Name: Gaby D.        time:2022-02-15 11:13:53
Your advertising grabbed my attention, and you web site seemed to confirm that your company was one I wanted to do business with. We are VERY pleased with the steel product - the performance, the quality, the price- everything seems to be perfect! So i will definitely order more! Keep up the great work! Your products are amazing! Thanks.

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