API 5CT N80 መያዣ ቱቦዎች

መደበኛ

ደረጃ

ቅንብር (%)

C

Si

Mn

P

S

Cr

Ni

Cu

Mo

V

አይ.ኤስ

API SPEC 5CT
 

J55K55

0.34 ~ 0.39

0.20
0.35

1.25 ~ 1.50

≤0.020

≤0.03

≤0.15

≤0.20

≤0.20

≤0.020

(37Mn5)

N80

0.34 ~ 0.38

0.20
0.35

1.45 ~ 1.70

≤0.020

≤0.03

≤0.15

0.11
~ 0.16

≤0.020

(36Mn2V)

L80 (1)

≤0.43

≤0.45

≤1.9

≤0.03

≤0.03

≤0.25

≤0.35

L80(9ሲር)

≤0.15

≤1.00

0.3 ~ 0.60

≤0.020

≤0.030

8
10.0

≤0.50

≤0.25

0.9 ~ 1.1

≤0.020

L80(13Cr)

0.15 ~ 0.22

≤1.00

0.25 ~ 1.00

≤0.020

≤0.030

12፡0
14.0

≤0.50

≤0.25

≤0.020

P110

0.26 ~ 0.35

0.17
0.37

0.40 ~ 0.70

≤0.020

≤0.030

0.80
1.10

≤0.20

≤0.20

0.15
~ 0.25

≤0.08

≤0.020

(30CrMo)