详情
Kinds of pipes:
1 Straight-seam pipe, spiral welded pipe:
Welding method: Electric arc weld, ERW (high frequency, low
frequency), gas-welding, continuous furnace welding.
1.1 Longitudinal electric resistance welded steel tubes: Material:
*8F, *8, *0F, *0, *5F, *5, *0, Q**5, Q**5A, Q**5B, Q**5, Q**5B.
Specification: OD. ****8, WT. 0.***3.0.
1.2 Welded stainless steel pipes for liquid delivery: Material:
1Cr*8Ni9, 0Cr*8Ni9(**4), *0Cr*8Ni*0(**4L), 0Cr*5Ni*0(**0S),
0Cr*7Ni*2Mo2(**6), *0Cr*7Ni*4Mo2(**6L), 0Cr*8Ni*0Ti(**1). The ones
in the brackets are that of American standard. Specification: OD.
****0, WT. 0.***6.
1.3 Stainless welded pipe for mechanical structure: Material:
1Cr*8Ni9, 0Cr*8Ni9 (**4), *0Cr*8Ni*0 (**4L), 0Cr*8Ni*0Ti (**1). The
ones in the brackets are that of American standard. Specification:
OD. ****0, WT. 0.***6.
1.4 Welded pipe for low-pressure fluid delivery: Material Q**5A,
Q**5B, Q**5A, Q**5B, Q**5A, Q**5B, Q**5A, Q**5B. Specification: OD:
*7.*****6, WT. ***5.
2 Seamless pipe
2.1 Stainless steel seamless pipe for fluid delivery: Material
1Cr*8Ni9, 0Cr*8Ni9(**4), *0Cr*8Ni*0(**4L), 0Cr*5Ni*0(**0S),
0Cr*7Ni*2Mo2(**6), *0Cr*7Ni*4Mo2(**6L), 0Cr*8Ni*0Ti(**1). The ones
in the brackets are that of American standard. Specification: OD.
****6, WT. 0.****5.
2.2 Seamless pipe for low temperature pipeline: Material: *6MnDG,
*0MnDG, *9DG, *9Mn2VDG, *6NiMoDG. Specification: OD. ****6, WT.
0.****0.
