API 11B 7/8 "1" SUSTKER TILS avec couplages

SIZE
(in)

ROD D.(in)

THREAD D.
(in)

LENGTH
(ft)

OUTSIDE DIAMETER 
OF PIN SHOULDER(mm)

LENGTH 
OF PIN(mm)

LENGTH OF WRENCH 
SQUARE(mm)

WIDTH OF WRENCH SQUARE(mm)

5/8"

5/8"

15/16

2
4
6
8
10
25
3

31.75

31.75

≥31.75

22.23

3/4"

3/4"

1-1/16

38.10

36.51

25.40

7/8"

7/8"

1-3/16

41.28

41.28

1"

1"

1-3/8

50.80

47.63

≥38.10

33.34

1-1/8"

1-1/8"

1-9/16

57.15

53.98

≥41.28

38.10

Certification

API

Material

Alloy steel

Processing Type

Forging

Use

Oil production

Grade

C, D, K, KD, H,HL,HY

Technique

Hot Rolled Hot forging

Grade C

Moderate strength Not susceptible to sulfide stress cracking suitable in sour medium

Grade D

Heat treated steel alloy High tensile and yield strength Suitable for non-corroding or mildly corroding environment

Grade K ,KD

Superior tensile strength Good corrosion resistance in H2S, CO2 and NaCl media