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API 11B 19 Spray Welded Slimhole (SH) Rod Coupling
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API 11B 19 Spray Welded Slimhole (SH) Rod Coupling

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Product Description

1) Basic material: Alloy structural steel 40Cr

2) Alloy powder: Nickel base alloy 

3) Standard: API Spec.11B

4) Main specifications size: OD: 38.1mm; Length: 101.6mm.

5) Main technical performance: surface finish: Ra0.4; Coating thickness: 0.254mm-0.508mm; Hardness of basic material: HRA56-62; Alloy coating surface hardness: HRC 58-62;

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