Limestone Quarry Plant

One of the Top 500 enterprises in China foreign trade

QCCO was approved as a member of “China Association for Contracting Projects Abroad “and granted a membership certificate on Sep 28,2005; “Credibility Rating AAA certificate in Foreign Trade” was granted to QCCO by China Shippers’ Association

 
 

ASTM and API seamless steel tube

 Steel pipe:

Tubes especially for structural purposes

Standard :GB/T8162-2008


Thick wall steel pipe| Drill pipe|welding steel pipe

Used in the general structure and the mechanism ,including construction ,machinery,transportation, aviation,petroleum mining and each kind of structural tubes.Stainless steel pipeSeamless steel pipe |

Pipe types

Pipe size mm

Tolerances

 

 

 

 

 

Hot rolled

 

OD

<50

-0.5/+0.5mm

>=50

-0.1/+0.1%

 

 

WT

<4

-12.5/+12.5%

 

>=4-20

+15%

-12.5%

>20

-12.5/+12.5%

 

 

 

Item

NO.

 

 

Grade

Mpa Tensile StrengthAlloy steel pipe|Carbon steel pipe|spiral steel pipe|

Mpa Yield Strength

 

%Elongation

H(Flattening test dull spacing mm)

WT

<=16mm

16-30

 mm

>30

mm

MINAPI steel pipe|ERW steel pipe|

1

10

335

205

195

185

24

2/3D

2

20

390

245

235

225

20

2/3D

3

35

510Steel pipe |

305

295

285

17

---

4

45

590Seamless steel pipe|

335

325

315

14

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