Api 3/4¡± class sm slim hole sucker rod coupling

1) material: aisi 5140
2) standard: api spec 11b
3) main specification:
Od:1-1/2" (38.1mm)
Id: 1-1/16"(26.99mm)
Length: 4" (101.6mm)
Weight: 0.47kg
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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Wooden cases