According to the different applications,as for cold draw seamless steel pipe ,hot rolled seamless steel pipe or the hot expansion steel pipe
seamless carbon steel tubes can be divided into low pressure pipe
medium pressure pipe, high pressure boiler pipe, alloy steel pipe, petroleum cracking pipe, and for construction ,for linepipe
According to the different manufacturing methods, seamless carbon steel tubes can be divided into hot rolled seamless steel pipe,
cold rolled seamless steel pipe and cold drawn seamless steel pipe. Cold rolled has better dimensional accuracy than hot working.
Specifications for carbon seamless steel pipe:
1)Pipe Process method: Cold drawn, Cold rolled,hot rolled ,hot expansion.
2) Surface finish: Varnishing ,black rust-proof oil,transparent oil, Annealed,3LDPE ,3HDPE,2PP cold pilgered, manual polished, mechanical polished
3)Quality Standards and Material: API SPEC 5CT, ASTM A53, ASME SA53, ASTM A106,API SPEC 5L
ASTM A106 GRB, A53 A335, ST37, ST52
4)Pipe Size: OD 60.3mm -914mm WT 2mm - 55mm
5) Length: max 12m
6) End Finish: Plain ends or End Bevelled
7) Applications: long-distance oil and gas conveying, fluid transportation pipeline,constuction ,pile
8) Packing term: Standard seaworthy packing, General bunch packing