Inside diameter

(mm)

Inside outside

(mm)

Texture of

material

Surface

quality

Chemical composition

(%)

Mechanical properties

C

Mn

Si

P

S

Tensile strength

N/m( )

Extension

length%

Squash

Bend

90°

Hydrostatic pressure

MPa

15

21.25

Q215

Qualified

This batch of steel pipe

 by passing the tests,

such as specific data,

please contact with

the monitoring center

445

23

-

Qualified

Qualified

20

26.75

425

25

-

Qualified

Qualified

25

33.5

415

22

-

Qualified

Qualified

32

42.23

440

21

-

Qualified

Qualified

40

48

420

24

-

Qualified

Qualified

50

60

415

22

-

Qualified

Qualified

65

75.5

410

19

Qualified

-

Qualified

80

88.5

405

17

Qualified

-

Qualified

100

114

425

20

Qualified

-

Qualified

125

140

425

23

Qualified

-

Qualified

150

165

415

17

Qualified

-

Qualified

200

219

430

21

Qualified

-

Qualified