API polished Rod - sucker rod - Zhongshi Group-API Certified Manufacture in China

Features:

1.Different alloys: AISI 4130 and AISI 4140

2. An important link for connecting

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The polished rod is the uppermost joint in the string of sucker rods used in a rod pump artificial-lift system. The polished rod enables an efficient hydraulic seal to be made around the reciprocating rod string.Currently, polished rods are made from AISI 4130 and 4140 alloy steel.

1.API polished rod

Chemical Composition
Steel	AISI 4140
C	0.4
Si	0.23
Mn	0.62
P	0.016
S	0.007
Cr	1.03
Ni	0.03
Mo	0.16
Cu	0.06
W	0.008
V	0.01
Ti	0.008

Mechanical Properties
Yield Strength 0.2% offset, PSI	85,000
(MPa)	-586
Ultimate Tensile Strength, PSI	115,000 – 140,000
(MPa)	(793 – 965)
Elong., δ %	≥10
Rod Size, OD	1″, 1-1/8″, 1-1/4″
(mm)	(25), (28), (31.75)
Rod Length	25’, 30’? (+/- 2.0″per API requirement)
(m)	(7.62), (9.14) (+/- 50.80mm per API requirement)

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 polished rod physical requirement of API Specification 11B. All other physical properties are expected values only and we reserve the right to deviate from the above listed values.

2. API Metal Sprayed Polished Rod

Coating Chemical Properties, %
C	≤0.4
Si	2.0~3.5
B	1.5~2.5
Cr	7~10
Fe	≤4
O	≤0.08
Ni	Balance

Except coating chemical composition,metal sprayed polished rod diameters, dimensions and tolerance are same as normal polished rod.

Different Types of Polished Rod

Related Product of Polished Rod

PRODUCTS TYPE

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