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Steel sucker rod is the major equipment for oilfield. We provide grade C, D, K, KD, HL, HS and special alloy sucker rod which are made according to API Spec 11B. Grade C sucker rod is made of fine carbon-steel, featured by moderate strength, good plasticity and better corrosion-resistance. Grade C sucker rod is suitable for sour medium environment where they are not susceptible to sulphuric stress cracking.
Grade D sucker rod is made of fine alloy steel with feature of high strength, better plasticity and long service life after heat treatment. Grade D sucker rod is suitable for deeper oil well in the non-corrosion or light- Steel Sucker Rod corrosion medium.
Technical Specification of Steel Sucker Rod:
|
Sucker Rod Size (in) |
Rod (in) |
THREAD (in) |
ROD LENGTH (ft) |
|
5/8 |
5/8 (+0.007,-0.014) |
15/16 |
25 26 30 Pony Rod |
|
3/4 |
3/4 (+0.008,-0.016) |
1-1 /16 |
|
|
7/8 |
7/8 (+0.008,-0.016) |
1-3/16 |
|
|
1 |
1 (+0.009,-0.018) |
1-3 /8 |
|
|
1 1/8 |
1 1/8 (+0.010,-0.020) |
1-9 /16 |
Mechanical Properties of Steel Sucker Rods:
|
Sucker Rod Grade |
Yield Strength σs (Mpa) |
Tensile Strength σb (Mpa) |
Elongation ∆ (%) |
Contraction Area Ψ (%) |
Impact Toughness αk (J/cm2) |
|
C |
≥500 |
621~793 |
≥12 |
≥55 |
≥60.8 |
|
D |
≥620 |
793~965 |
≥10 |
≥50 |
≥58.8 |
|
K |
≥414 |
621~793 |
≥12 |
≥60 |
≥70 |
|
KD |
≥586 |
793～965 |
≥10 |
≥50 |
≥58.8 |
|
HL |
≥793 |
965～1195 |
≥10 |
≥50 |
≥60 |
|
HS |
≥793 |
965～1034 |
≥10 |
≥50 |
≥60 |
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