Piping Material Specification Introduction

1. General Introduction

• What's Piping?
• What's Pipe?

ASME B31.3
Piping: assemblies of piping components used to convey, distribute, mix, separate, discharge, meter, control, or snub fluid flows. Piping also includes pipe-supporting elements, but does not include support structures, such as building frames, bents, foundations, or any equipment excluded from this Code (see para. 300.1.3).
Pipe: a pressure-tight cylinder used to convey a fluid or to transmit a fluid pressure, ordinarily designated "pipe" in applicable material specification. Materials designated "tube" or "tubing" in the specifications are treated as pipe when intended for pressure service.

2. Pipe Material Used in Oil Process

Material Type

• Nonmeta
• Alloy Steel
• Carbon Steel
• Cryogenic Carbon Steel
• Stainless Steel
• Duplex Stainless Steel
• Copper-Nickle Alloy

3. Piping Component

• Pipe
• Fitting
• Flange
• Valves
• Gasket
• Bolt and Nuts

4. Typical Offshore Piping Material Specification

CNOOC PMS

5. Partial Piping Material Specification Introduction

• HG
• SH
• JIS / JPI

The content of Piping Material Specification

• Material Class Symbol
• Piping Class / Piping Class Summary
• Branch Connection Table
• Piping Component Requirement