API OCTG RANGE / CASING & TUBING
   PHYSICAL REQUIREMENT
 API 5CT
YIELD STRENGTH 
TENSILE
STRENGTH
HARDNESS 
HYDROSTATIC
TEST PRESSURE
 Grade
Type 
Min
Psi x 100
(MPa)
Max
Psi x 100
(MPa)
 Min
Psi x 1000
(MPa)
Max

(BHN)
  H-40
  J-55
  K-55
N-80
 
  40 (276)
  55 (379)
  55 (379)
80 (551)
  80 (551)
  80 (551)
  80 (551)
110 (758)
  60 (414) 
 75 (517)
 95 (655)
100 (689)
-
-
-
-
   U.S. CUSTOMERY EQUATION:
  P = 2F  Yp  T/D

  WHERE:

  P   = Hydro Test Pressure (Psi)
  F   = Test Pressure Factor = 0.8
  Yp = Specified min. yeld strength Psi
  T   = Spdivied Wall Thickness inch (mm)
  D   = Specified Outside Diameter inch (mm)
   L-80
   L-80
   L-80
   C-90
   C-95
 T-95
1
9 Cr
13 Cr
1,2

1,2
  80 (551)
  80 (551)
  80 (551)
  90 (620)
  95 (655)
95 (655)
95 (655)
95 (655)
95 (655)
105 (724)
110 (758)
110 (758)
   95 (655)
   95 (655)
   95 (655)
 100 (689)
 105 (724)
105 (724)
 241
 241
 241
 255
 255
255
 P-110
 
110 (758)
140 (965)
 125 (862)
 -
Q-125
 1 - 4
125 (862)
 150 (1034)
 135 (930)
 -
  CHEMICAL REQUIREMENT  ( % )
 Grade
Type 
C 
Mn 
Mo 
Cr 
Ni
Max
Cu
Max
P
Max
S
Max
Si
Max
H-40, J-55
K-55, N-80
 -
-
-
-
-
-
-
-
-
-
-
-
-
-
0.03
0.03
0.03
0.03
-
-
 L-80
 L-80
 L-80
 C-90
 C-90
 C-95
 T-95
 T-95
1
9 Cr
13 Cr
 1
 2
 -
 1
 2
0.43 max
0.15 max
0.15 - 0.2
0.35 max
0.50 max
0.45 max
0.35 max
0.50 max
1.9 max
0.30 - 0.60
0.25 - 1.00
1.00 max
1.90 max
1.90 max
1.20 max
1.90 max
-
0.90 - 110
12.00 - 14.00
1.20 max
N.L.
-
0.25 - 0.85
-
-
8.00 - 10.00
12.00 - 14.00
1.20 max
N.L.
-
0.40 - 1.50
-
0.25
0.50
0.50
0.99
0.99
-
0.99
0.99
0.04
0.25
0.25
-
-
-
-
-
0.03
0.02
0.02
0.02
0.03
0.03
0.02
0.03
0.03
0.01
0.01
0.01
0.01
0.03
0.01
0.01
0.45
1.00
1.00
-
-
0.45
-
-
 P-110
- 
- 
- 
- 
- 
- 
- 
 0.03 
 0.03 
- 
  Q-125
  Q-125
  Q-125
 Q-125
  1
  2
  3
 4
 0.35 max
 0.35 max
 0.50 max
0.50 max
 1.00 max
 1.00 max
 1.90 max
1.90 max
 0.75 max
 N.L.
 N.L.
N.L.
 1.20 max
 N.L.
 N.L.
N.L.
 0.99
 0.99
 0.99
0.99
 -
  - 
 -
-
  0.02
  0.02
  0.03
 0.03
  0.01
  0.02
  0.01
 0.02
-
-
-
-
   TOLERANCES ON DIMENSIONS & WEIGHTS  LENGTH RANGE
  OUTSIDE DIAMETER
   FOR NON-UPSET CASING AND TUBING:
   < 4-1/2 inch  (114.3 mm)               +/-0.031 inch (0.78 mm)
   > 4-1/2 inch  (114.3 mm)               + 1%,  -0.5%
   FOR EXTERNAL UPSET TUBING: 
   2-3/8 inch (60.3 mm)                    + 3/32 inch (2.38 mm)
   to 3-1/2 inch (88.9 mm)                 -1/32 inch (0.79 mm)		                  RANGE-1         RANGE-2          RANGE-3 
 CASING
     (feet)      16 - 25            25 - 34              34 - 48
     (mtr.)  (4.88 - 7.62)    (7.62 - 10.36)    (10.36 - 14.63)

 TUBING
     (feet)      20 - 24            28 - 32
     (mtr.)  (6.10 - 7.32)    (8.54 - 9.75)

 PUP JOINTS
        2,  3,  4,  6,  8,  10,  12 feet
           TOLERANCE  +/-3 inch
    > 3-1/2 inch (88.9 mm)                + 7/64 inch (2.78 mm)
   to < 4 inch (101.6 mm)                  -1/32 inch (0.79 mm) 
    > 4 inch (101.6 mm)                    + 7/64 inch (2.78 mm)
                                                     -0.75%
   WALL THICKNESS                       -12.5%  +  N.L.
   WEIGHT
   SINGLE LENGTH                          + 6.5% - 3.5%
   CAR LOAD LOT (min. 40,000 lb)               - 1.75%
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