Full Specification for Seamless Pipe:

1. Fabrication Process

The "seamless" fabrication process follows several steps, depending on the applicable material specification.

These steps typically include (a) a forging is heated to white temperature, (b) the white-hot ingot is forged and

elongated into cylindrical bars, (c) the white-hot bars are pierced and sized to the right diameter and thickness,

(d) the pipe is hydrotested, (e) mechanical properties are verified against the material and procurement order

specifications, (f) the ends are beveled or threaded, and (g) the pipe is cleaned, marked, and readied for

shipment.

2. Material:

Carbon Steel, Alloy Steel, Stainless Steel, Alloy(Non-Ferrous)

3. Size Range:

1/2 ~ 24"(DN15 ~ DN 600)

4. Wall Thickness:

SCH10, SCH20, SCH30, STD, SCH40, SCH60, SCH XS, SCH80, SCH100,

SCH120, SCH140, SCH160, SCH XXS, SCH10S, SCH20S, SCH40S, SCH80S

5. Standards:

ASTM A53, ASTM A106, ASTM A333M, API 5L, ASTM A692, ASTM A519, SAE J524, BS 3059,

BS 3061, DIN 1629, DIN2391, DIN17175, JIS G3454, JIS G3456, JIS G3461, JIS G3460, JIS G3458

ASTM A213, ASTM A268, ASTM A312, ASTM A376, ASTM A789, JIS3448, JIS3459