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| API Sucker Rod |
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| Appearance |
Specification |
DownLoad |
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Our API sucker rods are manufactured to API 11B specification in one of the most modern facilities of its type in the industry in China. Our sucker rods are made from high strength alloy steel and treated with normalizing or quenching and tempering, and with the threads cold rolled and inspected with non-destructive testing machine. The couplings of our sucker rods are spayed coated to have a corrosion-resistant surface with a low coefficient of friction that reduces wear on the tubing and coupling. The sucker rods we supplied are carefully palletized in bundles for safe transport and handling.
Main dimensions for API sucker rods
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Size
(in)
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Diameter of Rod
(mm)
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Nominal Diameter of thread (in)
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Length
(ft)
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Material Grade
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5/8
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15.9
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15/16
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2’ – 30’
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C, K,
KD, D,
HY, HL
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3/4
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19.1
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1-1/16
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2’ – 30’
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7/8
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22.2
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1-3/16
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2’ – 30’
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1
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25.4
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1-3/8
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2’ – 30’
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1-1/8
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28.6
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1-9/16
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2’ – 30’
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Chemical Composition / Mechanical Properties / Heat Treatment
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Chemical Composition
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AISI Grade
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AISI4130
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AISI4142
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AISI4720
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API Grade
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D
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D
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KD
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Carbon
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0.26~0.33
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0.38~0.45
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0.19~0.23
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Manganese
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0.40~0.70
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0.80~1.00
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0.80~1.05
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Phosphorus
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0.025 MX
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0.025 MX
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0.025 MX
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Sulphur
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0.025 MX
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0.025 MX
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0.025 MX
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Silicon
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0.17~0.37
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0.15~0.35
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0.15~0.35
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Copper
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0.25 MX
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0.35 MX
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0.20MX
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Nickel
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0.30MX
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0.45 MX
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0.90~1.20
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Chromium
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0.80~1.10
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0.80~1.10
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0.80~1.05
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Molybdenum
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0.15~0.25
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0.15~0.25
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0.24~0.30
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Vanadium
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0.03~0.07
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0.03~0.07
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0.03~0.07
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Mechanical Properties
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AISI Grade
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AISI4130
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AISI4142
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AISI4720
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API Grade
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D
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D
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KD
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Yield Strength 0.2% offset, PSI
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85,000
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85,000
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85,000
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(MPa)
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(586)
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(586)
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(586)
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Ultimate Tensile Strength, PSI
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115,000 – 140,000
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115,000 – 140,000
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115,000 – 140,000
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(MPa)
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(793 – 965)
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(793 – 965)
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(793 – 965)
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Elong., δ %
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≥10
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Rod Size, OD
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5/8″, 3/4″, 7/8″, 1″,1-1/8″
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(mm)
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(15.88), (19.05), (22.23), (25.40) , (28.58)
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Rod Length
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25’, 30’ (+/- 2.0″per API requirement)
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(m)
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(7.62), (9.14) (+/- 50.80mm per API requirement)
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Heat treatment
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AISI Grade
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AISI4130
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AISI4142
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AISI4720
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API Grade
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D
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D
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KD
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Heat treatment
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Quenched;
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Normalized;
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Normalized;
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Tempered
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Tempered
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Tempered
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*We reserve the right to deviate from the above listed percentages of a particular chemical element of a grade of steel, however we will always adhere to the requirements of API Specification 11B.
*Tensile value is the only steel sucker rod physical requirement of API Specification 11B. All other physical properties are expected values only and Nine-Ring reserves the right to deviate from the above listed value
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