استاندارد API 5L

 Line Pipe Physical Properties

API 5L Grade

Yield Strength
min.
(ksi)

Tensile Strength
min.
(ksi)

Yield to Tensile Ratio
(max.)

Elongation
min.
%
1

A 30

48

0.93

28

B 35

60

0.93

23

X42 42

60

0.93

23

X46 46

63

0.93

22

X52 52

66

0.93

21

X56 56

71

0.93

19

X60 60

75

0.93

19

X65 65

77

0.93

18

X70 70

82

0.93

17

X80 80

90

0.93

16