Tianjin Youfa Steel Co., Ltd
Tianjin Youfa Steel Co., Ltd
Home> Products> Carbon Steel Pipe> GOST 8731-74 Hot-Deformed Seamless Steel Pipes 219X6mm
GOST 8731-74 Hot-Deformed Seamless Steel Pipes 219X6mm
GOST 8731-74 Hot-Deformed Seamless Steel Pipes 219X6mm
GOST 8731-74 Hot-Deformed Seamless Steel Pipes 219X6mm
GOST 8731-74 Hot-Deformed Seamless Steel Pipes 219X6mm
GOST 8731-74 Hot-Deformed Seamless Steel Pipes 219X6mm
GOST 8731-74 Hot-Deformed Seamless Steel Pipes 219X6mm

GOST 8731-74 Hot-Deformed Seamless Steel Pipes 219X6mm

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Payment Type:L/C,D/P,T/T
Incoterm:CFR,FOB,CIF,EXW
Transportation:Ocean,Land,Air,Express
Port:Tianjin,Shanghai,Qingdao
Product Attributes

Model No.GOST 8731-74

StandardBs, Astm, Api

MaterialStpa22-Stpa26, A53-A369, Q195-Q345, 10cr9mo1vnb, 10#-45#, Mn-V Alloy, Crni Alloy, St35-St52, Stb35-Stb42, Api J55-Api P110, Cr-Mo Alloy

Section ShapeRound

Place Of OriginChina

ApplicationFluid Pipe, Boiler Pipe, Drill Pipe, Hydraulic Pipe, Gas Pipe, Oil Pipe, Chemical Fertilizer Pipe, Structure Pipe

Production ProcessHot Rolled

CertificationApi, Ce

Surface TreatmentCopper Coated

Special TubeApi Pipe

Whether AlloyNon-Alloy

Tolerance±1%

CategorySeamless Steel Pipe

Processing ServiceBending, Welding, Decoiling, Cutting, Punching

LengthRandom Length or 12m

Outside Diameter21mm-1420mm

Thickness1.65mm-200mm

Packaging & Delivery
Selling Units : Ton
Package Type : In bundles with steel strips
Picture Example :

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ASTM A53 A106 Round Carbon Seamless Steel Pipe
API 5L ASTM A106 A53 Gr.B Seamless Steel Pipe
Product Description

Seamless Steel Pipe is a tubular section or hollow cylinder, usually but not necessarily of circular cross-section, used mainly to convey substances which can flow - liquids and gases (fluids), slurries, powders and masses of small solids.

Hot rolled seamless Steel Pipe deformation process can be summarized as three stages: extension, perforation and finishing. Hot rolled seamless steel pipes is relative to the cold-rolled, cold rolling is below the recrystallization temperature of the rolling and hot rolled is carried out at above the recrystallization temperature of the rolling. Hot rolled seamless steel pipe can damage the refinement of the crystal grains of the steel, cast microstructure of the steel ingot and eliminate the defects of the microstructure so that the the steel organization compacting, improves the mechanical properties. This improvement is reflected in the rolling direction so that the steel is no longer at a certain extent isotropic; pouring the formation of bubbles, cracks and osteoporosis, under high pressure and temperature can also be welded together.

Hot Rolled Steel Pipes (Seamless Tube) in different size, specifications, grades & thickness as per the client's requirements. The range offered by tubes is available as per the international & national standard and can be available from us at affordable prices. These pipes are used in various application industry like shipbuilding, power plants, oil and gas, automotive, sugar mills and distilleries, cement and construction industries etc.

Hot Rolled Smls Steel Pipe (9)  Hot Rolled Smls Steel Pipe (61)


Product Specification

Out Diameter

13.7mm-914mm

Wall Thickness

2mm-120mm

Length

2m-12m

Producing Standard

American ASME B36.10M, ASTM API 5L, API 5CTJapanese JIS, German DIN, Chinese GB, BS standard

Steel Grade

ASTM A53, A106, A210, A252, A178, A333, A335, SAE1018, SAE1020, SAE1045 etc;

API 5L PSL1: A, B, x42, x46, x52, x56, x60, x65, x70
API 5L PSL2: B, x42, x46, x52, x56, x60, x65, x70, x80
JIS SS400, STPG42, G3454, G3456 etc;
DIN St35, St35.8, St37, St42, St45, St52, DIN1626, DIN17175 etc;
GB 10#, 20#, 45#, Q235, Q345, Q195, Q215, 16Mn, 27SiMn, 20Cr, 40Cr, 12CrMo, 15CrMo, 30CrMo, 35CrMo, 42CrMo etc;

EN S235JR, S275JR, S355JR, S355J0, S355J2

Special specifications

Available according to customer's requirements and quantity.

End Shape

Beveled end, plain end, varnished, or adding plastic caps to protect the two ends as per customer's requirements

Surface treatment

Painted, Oiled, galvanized, phosphate etc

Usage

1.Widely used in the mechanical treatment field, petrochemical industry, transport and construction field
2.Ordinary structural purposes and mechanic structural purposes, for example in construction field, fulcrum bearing etc;
3.The transportation of fluids in the projects and big equipments, for example transport of water, oil, gas etc
4.Can be used in low and medium pressure boiler for the transportation of fluids, for example steam tube, big smoke tube, small smoke tube, generating tube etc

Third party inspection

Welcome you to send a third party inspecting company (BV, SGS etc) to check the quality of our final products.



Below is our product catalog of steel pipe:

Descriptions

Grades

Standard

Specification

(OD*WT)mm

Usage

Structural steel pipe

20# 35# 45# Q345B, 16Mn, Q345B-E, 20Mn2, 25Mn, 30Mn2, 40Mn2, 45Mn2, SAE1018, SAE1020, SAE1518, SAE1045.

GB/T8162-2008, ASTM A29/A29M-2015

6-1020*1.5-100

For commom structure

Fluid steel pipe

10#20#ASTM A106, A210, A5316MnQ345A.B.C.D.E, Q295B.C.D.E

GB/T8163-2008

8-630*1.0-40

Fluid feeding

High pressure Boiler Pipe

20G, 15MnG, 20MnG, 15CrMoG, 12Cr1MoVG, St35.8, St45, SA106b, SA106c, SA210a, SA210c, A335P2, P11, P12, P22, P91, P92, A213 T2, T9, T11, T12, T22, T23, T91

GB/5310-2008, ASTM A 106-99DIN 17175-79

14-630*2-80

Temperature-resistant seamless steel pipe far high-pressure boiler

Oil casing pipe

API SPEC 5CT J55, K55, N80, L80C90, C95, P110

API SPEC 5CTSY/T6194-96GB/T222-84,

10-530*1.5-36

Boiler pipes for refinery,heatexchangeing pipes,seamless steel pipes for pipeline

Pipeline

API SPEC 5L, X42, X52, X60, X65,X70,X80

ASTM A53, ASTM A106, ASTM A333, BS301, BS3602, BS3603, BS3604, PSL1, PSL2, DNV-OS-F101, CSA-Z245

API SPEC 5L, ISO 3183, GB/T 9711

60-630*1.5-40

Carrying gas,water or oil in the industries of petroleum and natural gas

Alloy steel pipe

4140, 42CrMo, 32CrMo, 15CrMo, Cr5Mo13CrMo4412Cr1MoV P22 T91,P91,P9, T9Wb36

GB5310-95, GB9948-88,

ASTM A335/A335M, ASTM A213/213M, DIN17175-79, JISG3467-88, JISG3458-88

16-824*2-100

The seamless steal pipes features resistance to high presure,high/low temperature  and corrosion ano is used  in the industries of petroleum, chemical engineering and. Electric pwer as well as boiler

Hydraulic prop pipe

20#45#27SiMn30CrMoSiA

GB/T17396-2009

70-377*9-40

Coal mine hydraulic support and pillar cylinder, column, can also be used for other hydraulic cylinder, column


Chemical components & mechanical properties:

Standard

Grade

C max

Mn max

Si max

P max

S max

Yield strength min

Tensile strength

Elongation%

ASTM

A36

0.25

0.80-1.20

0.40

0.045

0.050

250

400-520

26

ASTM

A283

0.14-0.24

0.90

0.40

0.035

0.040

210

310-510

22-27

GB/T 700

Q235B

0.12-0.20

0.30-0.65

0.30

0.045

0.045

235

375-460

21-26

GB/T 1591

Q345B

0.18-0.22

0.60-1.50

0.55-0.95

0.035

0.035

345

470-630

20

JIS G3101

SS400

0.22

1.40

0.50

0.035

0.035

245

400-500

26

EN 10025

S235JR

0.17-0.20

1.40

0.35

0.035

0.035

235

360-510

24

EN 10025

S275JR

0.17-0.23

1.50

0.40

0.040

0.040

275

430-580

21

EN 10025

S355JR

0.22

1.60

0.55

0.025

0.025

355

470-630

20

DIN 17100

ST37-2

0.17-0.20

1.20

0.35

0.045

0.045

235

340-480

25

DIN 17100

ST52

0.24

1.60

0.55

0.045

0.045

345

450-630

21

Product Display

We can produce different sizes, thicknesses, widths and materials according to your requirements

ASTM A53 A106 Gr.B

Seamless Steel Pipe

Application

Carbon Steel Pipe and tube are used in high-pressure conditions. They are highly resistant to shock and vibration, making it ideal to transport fluids. Carbon steel pipes are widely used in a number of industries, such as construction material, buidlings, bridges, transporting water and sewage, oil and gas industries, boiler and condenser tubes, high-pressure applications, and chemical processing.

- Construction material bridges

- Transporting water and sewage

- Oil and gas industries

- Boiler and condenser tubes

- High-pressure applications

- Chemical processing

Carbon Steel Pipe

Packaging And Transportation

1) Packaging: 3 layers of packing. Inside is craft paper, Middle is water plastic film and outside GI steel sheet to be covered by steel strips with lock, with inner coil sleeve or as customers' requirements.

2) Shipping: We have long-term cooperation with many experienced shipping companies and will find the most suitable mode of transportation for you.

3) Trade terms: FOB/CIF/CFR

4) Shipping port: Qingdao/Tianjin/Shanghai

5) Shipment: A: Length: ≤6m, loaded in 20GP Container. B: Length: ≤12m, loaded in 40GP Container.

Remark: Size of 20GP Container (inside: 5898*2352*2393mm); Size of 40GP Container (inside: 12032*2352*2393mm); Size of 40HQ Container (inside: 12032*2352*2698mm).

6) Delivery time: Normal size: 7-15days send from warehouse directly. Special size: 15-30days custom made for you.

Seamless Steel Pipe
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