Steel Products > Seamless steel pipe with casing and tubing

Seamless steel pipe with casing and tubing

taoPipe.jpg

Instruction:


standards:
API SPEC 5CT - the standard American Petroleum Institute
use:
for oil well casing and tubing with the seamless steel pipe
produce steel grades:
J55, K55, N80, L80, P110, etc.
Tolerance:

steel types

diameter (D)

wall thickness (S)

pipe cold drawing

pipe outside diameter (mm)

allow deviation (mm)

allow deviation (mm)

<114.3

± 0.79

-12.5%

≥ 114.3

-0.5%, +1%

mechanical properties:

standards

Grade

tensile strength (MPa)

yield strength (MPa)

elongation (%)

hardness

API SPEC 5CT

J55

≥ 517

379 ~ 552

table

K55

≥ 517

≥ 655

N80

≥ 689

552 ~ 758

L80 (13Cr)

≥ 655

552 ~ 655

≤ 241HB

P110

≥ 862

758 ~ 965

chemical composition:

standards

Grade

chemical composition (%)

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

steel specifications:

material: 27SiMn (GB/T17396-1998) material: 27SiMn (GB/T17396-1998) material: 27SiMn (GB/T17396-1998) material: 27SiMn (GB/T17396-1998)
specifications number (t) origin specifications number (t) origin specifications number (t) origin specifications number (t) origin
83 * 13 20 Tianjin 127 * 10 15 Tianjin 168 * 20 27 Tianjin 245 * 27 13 Steel
83 * 14 23 Tianjin 127 * 17 25 Tianjin 168 * 32 19 Tianjin 245 * 32 16 Tianjin
89 * 16 9 Tianjin 133 * 16 27 Tianjin 180 * 21 8 Tianjin 273 * 27 30 Steel
95 * 9.2 113 Tianjin 133 * 16 20 Tianjin 180 * 22 17 Tianjin 273 * 30 15 Steel
95 * 10 21 Tianjin 133 * 22 19 Tianjin 180 * 25 10 Tianjin 273 * 36 10 Steel
95 * 15 10 Tianjin 140 * 18 12 Tianjin 180 * 40 25 Tianjin 299 * 30 25 Steel
102 * 14 7 Tianjin 146 * 14 27 Tianjin 194 * 21 13 Tianjin 325 * 30 20 Steel
114 * 9.2 127 Tianjin 152 * 17 10 Tianjin 203 * 26 23 Tianjin 377 * 35 18 Steel
114 * 10 22 Tianjin 159 * 16 24 Tianjin 219 * 22 9 Tianjin
114 * 19 19 Tianjin 159 * 21 25 Tianjin 219 * 25 16 Tianjin
121 * 14 30 Tianjin 168 * 18 34 Tianjin 232 * 31 9 Tianjin