Standard

ASTMA333 GR.1, GR.2, GR.3, GR.4, GR.5, GR.6, GR.7, GR.8

Business type

Agent

Size

size:1/4”-16”* SCH20,SCH40,SCH60,SCH80,SCH100,SCH120,SCH160,XXS.

Length: SRL, DRL, fixed length

Application

seamless steel pipe with low temperature concussion test widely used in bridge, ship, boiler and important building structure

Size Tolerances according to standard

Standard

The lowest temperature concussion test

℃

℉

ASTMA333

Gr.1

-45

-50

Gr.3

-100

-150

Gr.4

-100

-150

Gr.6

-45

-50

Gr.7

-75

-100

Gr.8

-195

-320

Gr.9

-75

-100

Gr.10

-60

-75

Mechanical properties

Standard

Steel

Tensile Strength(MPa)

Yield strength(MPa)

Elongation (%)

 Min

 Max

ASTMA333

Gr.1

380

205

35

Gr.3

450

240

30

Gr.4

415

240

30

Gr.6

415

240

30

Gr.7

450

240

30

Gr.8

690

515

22

Gr.9

435

315

28

Gr.10

550

450

22

Gr.11

450

240

18

Chemical composition: (%):

Standard

Steel

C≤

Si

Mn

P≤

ASTMA333

Gr.1

0.3

/

0.40-1.06

0.025

Gr.3

0.19

0.18-0.37

0.31-0.64

0.025

Gr.4

0.12

0.18-0.37

0.50-1.05

0.025

Gr.6

0.3

≥0.10

0.29-1.06

0.025

Gr.7

0.19

0.13-0.32

≤0.90

0.025

Gr.8

0.13

0.13-0.32

≤0.90

0.025

Gr.9

0.2

/

0.40-1.06

0.025

Gr.10

0.2

0.10-0.35

1.15-1.50

0.03

Gr.11

0.1

≤0.35

≤0.6

0.025

Chemical composition: (%):

Standard

S≤

Cu≤

Ni≤

Cr≤

Mo≤

V≤

ASTMA333

0.025

/

/

/

/

/

0.025

/

3.18-3.82

0.44-1.01

/

/

0.025

0.40-0.75

0.47-0.98

/

/

0.025

/

/

/

/

/

0.025

/

2.03-2.57

/

/

/

0.025

/

8.40-9.60

/

/

/

0.025

0.75-1.25

1.60-2.24

/

/

/

0.015

≤0.015

≤0.25

≤0.15

≤0.50

≤0.12

0.025

/

35.0-37.0

≤0.50

≤0.50

/