Pipeline grade naming principles
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This post was last edited by sibling on 2025-4-24 09:04. I would like to ask everyone: which standard specifies the rules for pipeline grade coding as shown below? Is it a universally adopted coding rule? For example: A 31 AB 1 A ① Pressure Rating: pressure rating in pounds. ② Sequential Number (Fluid group): serial number of the material. ③ Material Code: code identifying the material. ④ Corrosion Allowance: allowance for corrosion. ⑤ Additional Standard (If needed): additional standard requirements (if applicable)
The rules for pipeline grade coding may be established based on specific project standards or industry standards, and are not necessarily universal international rules. It is recommended to consult relevant ** or industry standards, such as GB (** standards), API (American Petroleum Institute standards), etc., or the project’s internal design specification documents. .
It is also internationally standard; it basically involves pressure ratings and material combinations, though with slight differences.
HG 20519: Various well-known domestic and international design institutes have their own standards.