Chemical Composition

          STANDARD

GRADE

                           CHEMICAL COMPOSITION

C

Si

Mn

P

S

Cr

Mo

Cu

Ni

V

         ASME SA106

SA106B

0.170.25

≥0.1

0.701.00

≤0.030

≤0.030

≤0.035

         ASTM A106

    A

≤0.25

≤0.10

0.270.93

≤0.035

≤0.035

≤0.40

≤0.15

≤0.40

≤0.40

≤0.08

    B

≤0.30

≤0.10

0.291.06

≤0.035

≤0.035

≤0.40

≤0.15

≤0.40

≤0.40

≤0.08

    C

≤0.35

≤0.10

0.291.06

≤0.035

≤0.035

≤0.40

≤0.15

≤0.40

≤0.40

≤0.08

ASTM A53

    A

0.25

/

0.95

0.05

0.045

0.40 

0.15

0.40 

0.40 

0.08

    B

0.3

/

1.2

0.05

0.045

0.40 

0.15

0.40 

0.40 

0.08

        ASTM A179

  A179

≤0.06-0.18

/

0.27-0.63

≤0.035

≤0.035

        ASTM A192

  A192

0.060.18

≤0.25

0.270.63

≤0.035

≤0.035

        ASTM A210

  A-1

≤0.27

≥0.10

≤0.93

≤0.035

≤0.035

   C

≤0.35

≥0.10

0.291.06

≤0.035

≤0.035