Seamless tubes and pipes standard marking and package
All inquires and orders should contain the following information.
Specification, edition, grade, type and prat No. Purchaser’s own specification covering requirements not include in the referenced specification, and/or those that replace, valid specification should be attached to first inquiry and/or given at revision.
- Specific requirements
Method of manufacturer - seamless, electric - resistance welded
Type of manufacture - hot-finished or cold drawn
Type of end finish - square-cut or beveled & threaded and coupled
Requirements different from the specification should be mentioned.
Outside diameter [O.D] or nominal pipe size with abbreviation.
Wall thickness - Nominal or minimum wall thickness, nominal weight or schedule number.
Length - specific or random
Feet, meters or number of lengths - delivery allowance should be specified
Specify the name of an inspection agent when the inspector representing the purchaser should inspect.
- Finish and coating
Mill’s standard varnish coating
- Marking requirement
When a marking other than that stipulated in the specification is required, give a detailed description of such marking.
- Packing requirement
Bundled or loose - any special packing should be so instructed if specified other than the specification.
- Delivery requirements
Time, place and shipping instructions
- End use
Commodities to be transported, location, on-land or off-shore, operation pressure and temperature, when available.
- Consult with us before placing an order or at an inquiry when any of the following items are required.
Intermediate grade, wall thickness
Special and/or supplemental requirements in chemistry
Special and/or supplemental mechanical properties
Special or alternative hydro-static pressure
Closer tolerance on sizes
Additional and/or alternative nondestructive inspection
- line pipe
- boiler tube
- machinery pipe
- carbon steel pipe
- alloy steel pipe
- gas cylinder tube
- pipe for structure
- weathering steel pipe
- stainless steel pipe
- pipe fittings and flanges