Material Acc of Steel Pipe

This discussion is part of Material Acceptance - Steel Material for describe additional requirements of Steel Pipe

a) It required for both seamless and welded pipe that it subject to stress due to a internal pressure.

b) Ordering Information
Information items to be considered in the purchase order are as follows:

- Specification designation
- Quantity (feet, meters, or number of length)
- Grade and Type
- Finish (Black or galvanized)
- Size (NPS and weight class or schedule number, or both; outside diameter and nominal wall thickness)
- Length (specific or random)
- End finish (plain end or threaded)
- Certification
- End use of material
- Specific requirements.

c) The material shall be accepted as complying with the material specification. Each length of pipe may be marked by rolling, stamping, or stenciling in accordance with material specification to show: the manufacturer’s name and brand; the specification designation, the grade & type, Size (NPS, schedule number, or wall thickness, length), the heat number.

d) If the material specification does not provide for the marking of each piece (NPS 1½ and smaller), the pipe shall be accepted as complying with the material specification provided the following requirements are met:
- Each bundle shall be marked or substantially tagged showing the identification in accordance with the specification designation.
- The handling and storage of the material shall traceability to specific lot and order. It shall refer to inventory procedure of Material Management.

e) In the case where there are surface imperfections, the manufacturer may remove or repair the defect by grinding, provided that the remaining wall thickness is within specified limits.

f) The section of pipe containing the defect may be cut off within the limits of requirement on length.