API SPEC 5CT H40 J55 K55 M65 N80-1 N80Q R95 L80-1 C90-1 T95-1 C110 P110 Q125-1 material Oil steel Casing Tube Pipe

Product Detail

API SPEC 5CT H40 J55 K55 M65 N80-1 N80Q R95 L80-1 C90-1 T95-1 C110 P110 Q125-1 material Oil steel Casing Tube Pipe

Description:

Standard: API 5CT.

Applications: Used for oil casing and tubing in oil wells.

Available steel grades: H40 J55 K55 M65 N80-1 N80Q R95 L80-1 C90-1 T95-1 C110 P110 Q125-1.

Specifications: O.D.: 6.0~1200mm; W.T.: 1~150mm; L: 5.8m; 11.8m; 12m or above. Modified specifications according to customer requirements.

Technology: Hot Rolled, Cold Drawn & Cold Rolled.

Dimension Tolerance:

Types of steel tubes	Outer Diameter		Wall Thickness
Cold-rolled tubes	Tube sizes(mm)	Tolerances(mm)	Tolerances(mm)
	<114.3	±0.79	-12.5%
	=114.3	-0.5+1%




Mechanical Properties:

Standard codes	Models of steel tubes	Tensite strength(MPa)	Yield strength(MPa)	Elongation(%)	Hardness
API SPEC 5CT	J55	=517	379~552	check the table
	K55	=517	=655
	N80	=689	552~758
	L80(13Cr)	=655	552~655		=241HB
	P110	=862	758~965




Chemical Composition:

Standard codes

Models of steel tubes

Chemical compositions(%)

C

Si

Mn

P

S

Cr

Ni

Cu

Mo

V

Als

API SPEC 5CT

J55K55 (37Mn5)

0.34~0.39

0.20~0.35

1.25~1.50

=0.020

=0.015

=0.15

=0.20

=0.20

=0.020

N80 (36 Mn2V)

0.34~0.38

0.20~0.35

1.45~1.70

=0.020

=0.015

=0.15

0.11~0.16

=0.020

L80(13Cr)

0.15~0.22

=1.00

0.25~1.00

=0.020

=0.010

12.0~14.0

=0.20

=0.20

=0.020

P110 (30CrMo)

0.26~0.35

0.17~0.37

0.40~0.70

=0.020

=0.010

0.80~1.10

=0.20

=0.20

0.15~0.25

=0.08

=0.020