ASTM C662 is the standard specification for impervious graphite pipe and threading, providing a technical reference for products intended to deliver reliable, low-permeability performance. It helps define the expectations for pipe and threaded connections made from impervious graphite, supporting consistent manufacturing and clearer product selection. For buyers, engineers, and quality teams, this standard is useful because it anchors procurement and evaluation to a recognized ASTM framework for this specialized piping material.

ASTM C662 standard overview

The ASTM C662 standard focuses on the specification of impervious graphite pipe and threading, making it a key document for describing product requirements in a controlled way. As a specification, it is generally used to guide what the pipe and threaded components should meet in terms of acceptable form and quality for graphite-based piping applications. ASTM C662 is especially relevant when a project needs a clear technical basis for comparing products or verifying conformance to a recognized standard.

Where is ASTM C662 used?

This standard is commonly used in purchasing, engineering review, and product documentation for impervious graphite pipe and threaded components. It is most relevant where graphite piping is selected for its impermeable characteristics and where threaded assembly details must be defined consistently. ASTM C662 can also support supplier qualification and incoming inspection workflows, helping teams confirm that the supplied pipe and threading align with the intended specification before use in a system.

Practical importance of ASTM C662

In practice, ASTM C662 helps reduce ambiguity during specification, sourcing, and acceptance of impervious graphite piping products. It gives buyers and manufacturers a common technical reference for evaluating whether pipe and threading meet the expected standard, which can improve consistency across orders and projects. Using the standard may also support quality control and compliance efforts by providing a recognized basis for product comparison, documentation, and risk reduction.

• Specification for impervious graphite pipe
• Threading requirements for graphite components
• Product comparison and procurement reference
• Quality control and conformance checks
• Technical documentation for piping systems