Thép Ống Đúc Tiêu Chuẩn ASTM A213

Grade

Chemical Composition%

C

Si

Mn

P, S Max

Cr

Mo

Ni Max

V

Al Max

T2

0.10~0.20

0.10~0.30

0.30~0.61

0.025

0.50~0.81

0.44~0.65

–

–

–

T11

0.05~0.15

0.50~1.00

0.30~0.60

0.025

1.00~1.50

0.44~0.65

–

–

–

T12

0.05~0.15

Max 0.5

0.30~0.61

0.025

0.80~1.25

0.44~0.65

–

–

–

T22

0.05~0.15

Max 0.5

0.30~0.60

0.025

1.90~2.60

0.87~1.13

–

–

–

T91

0.07~0.14

0.20~0.50

0.30~0.60

0.02

8.0~9.5

0.85~1.05

0.4

0.18~0.25

0.015

T92

0.07~0.13

Max 0.5

0.30~0.60

0.02

8.5~9.5

0.30~0.60

0.4

0.15~0.25

0.015

Grade

Chemical Composition%

Mechanical Properties

W

B

Nb

N

T. S

Y. P

Elongation

Hardness

T2

–

–

–

–

≥ 415MPa

≥ 205MPa

≥ 30%

163HBW(85HRB)

T11

–

–

–

–

≥ 415MPa

≥ 205MPa

≥ 30%

163HBW(85HRB)

T12

–

–

–

–

≥ 415MPa

≥ 220MPa

≥ 30%

163HBW(85HRB)

T22

–

–

–

–

≥ 415MPa

≥ 205MPa

≥ 30%

163HBW(85HRB)

T91

–

–

0.06~0.10

0.03~0.07

≥ 585MPa

≥ 415MPa

≥ 20%

250HBW(25HRB)

T92

1.50~2.00

0.001~0.006

0.04~0.09

0.03~0.07

≥ 620MPa

≥ 440MPa

≥ 20%

250HBW(25HRB)