Steel sucker rod is one of major equipment for oilfield. Grade C ,Grade D, and Grade K sucker rods are our ...    More ...

Steel sucker rod is one of major equipment for oilfield.  Grade C ,Grade D, and Grade K sucker rods are our main products producing in accordance with API 11B.
Grade C sucker rod is made of fine carbon steel SSYD-1(equivalent to AISI 1526 ).It is suitable for sour medium environment .
Grade D sucker rod is made of fine NI-MO alloy steel 30CrMoA(AISI4130).It is suitable for the deeper oil well in the non-corrosion or light-corrosion medium.
Grader K sucker rod is made of fine Ni-Mo alloy steel 20Ni₂MoA(AISI4620).  
                                                           TECHNICAL PARAMETERS
        
SIZE 
(in) ROD D
(in) THREARD 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
12
14
25
30 31.8 31.75 ≧31.8 22.20
3/4 3/4 1-1/16 38.10 36.50 25.40
7/8 7/8 1-3/16 41.30 41.28
1 1 1-3/8 50.80 47.63 ≧38.1 33.30
1-1/8 1-1/8 1-9/16 57.20 53.98 ≧41.3 38.10

 MECHANICAL PROPERTIES GRADE YIELD STRENGTH REL
(Mpa) TENSILE
STRENGTH
Rm(Mpa) PERCENTAGE
ELONGATION
A(%)
CONTRACTION PERCENTAGE
OF AREA
Z(%)
  IMPACT
TOUGHNESS
ακ(J/cm²)
C ≧414 620-793 ≧12 ≧55 ≧70
D ≧620 794-965 ≧10 ≧50 ≧58.8
K ≧414 620-793 ≧12 ≧55 ≧70

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