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API Standard Spray Metal Polished Rod

API Standard Spray Metal Polished Rod

Manufacturing specification: API 11B Specification: 1-1/8”, 1-1/4”, 1-1/2” Type: D, SM (Spraying Metal)

Description


Specification: 1-1/8”, 1-1/4”, 1-1/2”

Type: D, SM (Spraying Metal)

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Material:

Chemical Composition

The chemical composition of polished rods are any composition of AISI recommended series steels that conform to chemical and mechanical property requirements listed below. The chemical and composition and limits shall be detailed in the material specification of the manufacturer.

a) Carbon steel:A1SI 1035 --10507.

b) Stainless steel: AISI 304/316 or 431 7.

c) Alloy steel:

1) AISI 4120-457

2) AISI 8620- 86307

Chemical composition of polished rod liners shall be as specified by the manufacturer. Stee1407 :

3) AISI 4315-43407

4) AISI 4615-462l polished rod liners shall be sprayed metal coated.

Chemical analysis shall be performed on each mill heat of steel used in the manufacture of polished rods. This analysis shall be performed in accordance with ASTM A751. A material certification is an acceptable means to conform to this requirement.

 

Mechanical Properties for Finished Product:

The mechanical properties of polished rods conform to the strength values as follows:

a) for carbon steels listed in B.3.2,the ultimate tensile strength shall be in the rang of 90,000 psi to 160,000 psi (621 MPa to 1,103 MPa )

b) for alloy steels listed in B.3.2,the ultimate tensile strength shall be in the rang of 95,000 psi to 160,000 psi (655 MPa to 1,103 MPa )

c) for stainless steels listed in B.3.2,the minimum ultimate tensile strength shall be 70,000 psi (482MPa) for 304/316, and 90,000 psi(620 MPa) for 431.


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