Polished Rod for Oilfield Production

• After-sales Service: After Sale Service
• Warranty: 12 Month
• Manufacturing Process: CNC Milling
• Shipping Cost: Estimated freight per unit.: about shipping cost and estimated delivery time.
• Currency: US$
• Return&refunds: You can apply for a refund up to 30 days after receipt of the products.
• Model NO.: 1-1/8"
• Surface Treatment: Polishing
• Operation Pressure: 100 Psi
• Material: Alloy
• Rod Material: AISI 4140/4130
• Standard: API 11b
• Coating Material: Ni 60
• Thread: Polished Rod Pin
• Transport Package: by Bulk
• Specification: 1-1/8"
• Trademark: ZX
• Origin: China
• HS Code: 8481431000
• Production Capacity: 1000 PCS Per Month
• Package Size: 10.00cm * 10.00cm * 914.00cm
• Package Gross Weight: 56.000kg

Product Description

POLISHED ROD 

Polished Rods, it is designed and manufactured in accordance with the latest edition of the API specification 11B. Our polished rods and couplings are furnished with cold formed fully rolled threads. And they are made from fine quality alloy steel, featured by high strength, smooth surface and long service life. The tensile strength of polished rods are a range of 655 to 1102 Mpa.

Regular polished rods are connected to polished rods coupling, and end upsetting polished rods are connected to sucker rod coupling in use. This technique ensures a perfect thread on each and every pin. The burnished thread surface that results from rolled threads improves resistance to corrosion and reduces abrasion within the thread. The work hardened flank provides increased surface tensile, yield and shear strength. Due to pressure deformation, a residual compresive stress system builds up at the thread root, which counteracts tensile loading. When compared to cut threads, the load capacity of rolled thread is increased by 6 - 12%


 

Size (inch) Diameter of rod body OD(mm)	Upsetting end thread nominal diameter (in)	Not upsetting end thread nominal diameter (in)	With of sucker rod specifications (in)	Length of polished rods LK ±50(mm)
25.4(+0.13,-0.25)	1-3/16	15/16	13/16	4500/6000/8000/10000/11000/12000
28.58(+0.13,-0.25)	1-3/8	1-1/16	1-3/8	4500/6000/8000/10000/11000/12000
31.75(+0.13,-0.25)	1-9/16	1-3/16	1-9/16	4500/6000/8000/10000/11000/12000