ASTM A53  Fluid Transportation seamless steel pipe

Pipe Varieties

Pipe size(mm)

Allowed tolerances

Standard

Higher

Hot Rolled

OD

All Sizes

±1%(min±0.5mm)

-

WT

All Sizes

+15%

-12.5%(MIN +0.45/-0.40MM)

-

Cold Drawn

OD

6~10

±0.2MM

±0.15MM

>10~30

±0.40MM

±0.20MM

>30~50

±0.45MM

±0.30MM

>50

±1%

±0.8%

WT

≤1

±0.15MM

±0.12MM

>1~3

+15%

-10%

+12.5%

-10%

>3

+12.5%

-10%

±10%

standard

Grade

RmMPa

Tensile Strength

Rel,Mpa Yield Point

A ,%

Elongation

S≤16

S>16

min

GB/T8163

10

335~475

205

195

24

20

410~550

245

235

20

Q295

430~610

295

285

22

Q345

490~665

325

315

21

ASTM A 53M

A

≥330

≥205

As table3 of ASTM A 53M

B

≥415

≥240

ASTM A106

A

≥330

≥205

As table4 of ASTM A 106

B

≥415

≥240

C

≥485

≥275

Standard

Grade

C

Si

Mn

P≤

S≤

Ni

Cr

Cu≤

Mo

V

Al

GB/T8163

10

0.07~0.13

0.17~0.37

0.35~0.65

0.035

0.035

≤0.3

≤0.15

0.25

-

-

-

20

0.17~0.23

0.17~0.37

0.35~0.65

0.035

0.035

≤0.3

≤0.25

0.25

-

-

-

Q295(A, B)

≤0.16

≤0.55

0.8~1.5

0.035

0.035

Ti , 0.02-0.2

-

Nb:0.015-0.06

0.02-0.15

-

Q345A

≤0.2

≤0.55

1.0~1.6

0.035

0.035

Ti: 0.02~0.2

-

Nb: 0.015-0.06

0.02-0.15

-

Q345B

≤0.2

≤0.55

1.0~1.6

0.035

0.035

Ti: 0.02~0.2

-

Nb: 0.015~0.06

0.02~0.15

-

Q345C

≤0.2

≤0.55

1.0~1.6

0.035

0.035

Ti: 0.02~0.2

-

Nb: 0.015-0.06

0.02~0.15

≥0.015

Q345D

≤0.2

≤0.55

1.0~1.6

0.03

0.03

Ti: 0.02~0.2

-

Nb: 0.015-0.06

0.02-0.15

≥0.015

Q345E

≤0.18

≤0.55

1.0-1.6

0.025

0.025

Ti: 0.02~0.2

-

Nb: 0.015-0.06

0.02-0.15

≥0.015

ASTM A 53M

A

≤0.25

-

≤0.95

0.035

0.035

≤0.4

≤0.4

0.4

≤0.15

≤0.08

-

B

≤0.3

-

≤1.2

0.035

0.035

≤0.4

≤0.4

0.4

≤0.15

≤0.08

-

ASTM A 106

A

≤0.25

≥0.1

0.27`0.93

0.035

0.035

≤0.4

≤0.4

0.4

≤0.15

≤0.08

-

B

≤0.3

≥0.1

0.29~1.06

0.035

0.035

≤0.4

≤0.4

0.4

≤0.15

≤0.08

-

C

≤0.35

≥0.1

0.29~1.06

0.035

0.035

≤0.4

≤0.4

0.4

≤0.15

≤0.08

-