Description

This specification covers seamless and welded black and hot-dipped galvanized steel pipe in NPS 1⁄8 to NPS 26 [DN 6 to DN 650], inclusive with nominal wall thickness.

Pipe ordered under this specification is intended for mechanical and pressure applications and is also acceptable for ordinary uses in steam, water, gas, and air lines. It is suitable for welding, and suitable for forming operations involving coiling, bending, and flanging, subject to qualifications.

Scope

This specification covers the following types and grades:

• Type F—Furnace-butt-welded, continuous welded Grade A,
• Type E—Electric-resistance-welded, Grades A and B, and
• Type S—Seamless, Grades A and B.

This specification covers seamless and welded black and hot-dipped galvanized steel pipe in NPS 1/8 to NPS 26.

The steel categorized must be open-hearth, basic-oxygen or electric-furnace processed and must have the following chemical requirements:

• carbon,
• manganese,
• phosphorus,
• sulfur,
• copper,
• nickel,
• chromium,
• molybdenum, and
• vanadium.

The tubing shall undergo a seamless or welding process. Tension, bend, and flattening tests shall be performed to make sure that it must adhere to the mechanical properties of the standard.

The hydrostatic test shall be applied, without leakage through the weld seam or the pipe body.

Nondestructive electric test shall be made to make sure that the full volume of the pipe must be in accordance with the standard.

The purchaser shall have the right to perform any of the inspections and tests set forth in this specification where deemed necessary to ensure that the pipe conforms to the specified requirements.