Downhole Well Oil Drilling Equipment Parts Stainless Steel Quick Coupling

API Sucker Rod Coupling, Class SM

1,Material: AISI 5140 (40Cr),

2,Coat Thickeness: 0.01-0.02 in

3,coupling diameter: 5/8 ",3/4",7/8",1",1-1/8"

4,Basic Hardness: HRC 16-23

5,Surface Hardness HRC 55-62

6,thermal spraying coating and extrusion thread







1) Material: AISI 5140

2) Standard: API Spec 11B

3) Main specification:

OD:1-1/2" (38.10mm)

ID: 15/16"(23.81mm)

Length: 4" (101.6mm)

Weight: 0.56kg

4)Other Size: 3/4 7/8 1 1 1/8 5)Smoothness: 3.1*10-3

6)Coat Thickness(in): 0.01in ~ 0.02in

7)Basic hardness: HRC 16-23

8)Surface Hardness: HRC 55-62

9)Bonding Strength(Mpa): 484

10)Hole rate: <2%

11)Min. Hardness of the layer: 595HV0.2

12)Min. Tensile Strength: 655 Mpa

13)Operating Temperature: -1000~400 Centigrade Temperature

14)Life: > 180 days

15) Package: wooden case, 1000pcs each case.

16) Usage: oil exploration equipment, accessories, oil sucker rod coupling



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