Product Details

Specifications

Three types of polished rods are available: conventional grade D polished rod, one end diameter enlarged polished rod

Titanium Polishing Rod with High Quality For Oilfield Oil Extraction

Product Description

Polished rods are designed for connecting sucker rod strings to beam pumping units via polished rod packing. The rods are round cross-section bars.

We provide 3 types of polished rods: normal polished rod, Polished rod-metal spray and polished rod-upset on one end.

2. Features:

They are all designed in accordance with API Spec 11B

They are all manufactured through cold-drawing, rolled threading, and surface grinding, etc.

It has high strength, good toughness, smooth surface and long lifetime etc.

General Dimensions and Tolerances For Polished Rod

Nominal Size		1-1/8 (in)		1-1/4 (in)		1-1/2 (in)
Nominal Size		in.	mm	in.	mm	in.	mm
Outside Diameter	Dimension	1.125	28.58	1.25	31.75	1.50	38.10
Outside Diameter	Tolerances	+0.005 -0.010	+0.13 -0.25	+0.005 -0.010	+0.13 -0.25	+0.005 -0.010	+0.13 -0.25
Nominal Diameterof Pin-thread	Dimension for referance	0.938	23.83	1.188	30.18	1.375	34.93
Nominal Diameterof Pin-thread	Dimension for referance	1.063	27.00
Note:sizes of sucker rods with which used	Nominal Dimension (for referance)	5/8		7/8		1
Note:sizes of sucker rods with which used	Nominal Dimension (for referance)	3/4
Note:Standard lengths	Dimension	ft 8,11,16, 22, 26,30,36, 40	m 2.4,3.4, 4.9, 6.7,7.9, 9.1, 11.0,12.2	ft 8,11,16, 22, 26,30,36, 40	m 2.4,3.4, 4.9, 6.7,7.9, 9.1, 11.0,12.2	ft 8,11,16, 22, 26,30,36, 40	m 2.4,3.4, 4.9, 6.7,7.9, 9.1, 11.0,12.2

Classification and Mechanical Properties

No.	Material (AISI Series Steel)	Tensile Strength
a)	Carbon Steel: AISI 1035-1050	90,000 Psi to 160,000 Psi
b)	Stainless Steel: AISI 304/316/431	≥95,000 Psi for 304/316 ≥90,000 Psi for 431
c)	Alloy Steel: 1) AISI 4120-4140 2) AISI 4315-4340 3) AISI 4615-4625 4) AISI 8620-8630	95,000 Psi to 160,000 Psi

Spray Metal Polished Rod Parameters

Spray Metal Polished Rod Coating Thickness	Spray Metal Polished Rod Coating Hardness	Chemical Composition for Polished Rod
Spray Metal Polished Rod Coating Thickness	Spray Metal Polished Rod Coating Hardness	Elements	Minimum Weight Percent	Maximum Weight Percent
	≥480 HV200	Carbon	0.50	1.00
		Silicon	3.50	5.50
		Phosphorus	0.00	0.02
		Sulfur	0.00	0.02
		Chromium	12.00	18.00
		Boron	2.50	1.50
		Iron	3.00	5.50
		Cobalt	0.00	0.10
		Titanium	0.00	0.05
		Aluminum	0.00	0.05
		Zirconium	0.00	0.05
		Nickel	Remainder
Note:The finished outside diameter of sprayed metal polished rods shall conform to general dimensions and tolerances for polished rod,except the tolerance on the OD between pin end and start of sprayed metal shall be

Packaging & Shipping

Company Information

Puyang Zhongshi Group Company Ltd was founded in 1996,which is the restructured enterprise of Central Plains oilfield branch company of SINOPEC . The company registered capital is 6083 million yuan,with annual output value 200 million yuan, 580 employees, including more than 160 technical and administrative staff. Oil machinery is our main products, the leading products include pumping unit,subsurface sucker rod pump, wellhead (Christmas Tree), pressure vessels,drilling solid control series products and cementing accessories, We had attained ISO 9001 in 1998 and API Certificates in 2002 .

Our Services

All products purchased in our company are guaranteed to keep in good repair for one year. If quality problems happen in guarantee period, our company will maintain for free. Additionally, our company provides technical support and fittings for life. After-sales service isn't restricted by time and we will assign technical personnel to solve your problems immediately after receiving telephone and hear feedback idea of users and deal with them in time. If you are caught in some problems when using our products, welcome to contact us at any time.

Our product range:

Pumping unit/ tubing pump/ sucker rod/ X-mas tree/ casing head/ casing pipe/ tubing pipe/ drill pipe/ polished rod/ coupling

Production packer/ tubing anchor/ safety joint/ screen pipe/ sand screen

Float collar/ float shoe/ casing centraliser/ stop collar/ cementing head/ stage collar/ cement basket/ cementing plug