The introduction of international advanced new
stainless steel welded pipe
production line, Φ630 automatic continuous production line unit
and multiple sets of
single-sided welding and double-sided forming German plasma
welding and submerged arc
welding units, the production of welded pipes can be divided
into single straight seam,
double straight seam and ring Seam butt joint: single seam
(φ6mm-φ1422mm), wall thickness
from 0.2mm to 40mm; double seam (φ630-φ2020) wall thickness from
2mm to 80mm, annular seam
(above Φ630), wall thickness from 2mm to 100mm. At present, the
main materials used by the
company are: nickel-based stainless steel (NO8904, N06600,
N08825, etc.), duplex stainless
steel (S32750, S31803, S32205), austenitic stainless steel
(310S, 309S, 316L, 321, 304L,
304, etc.), iron Element body (430, 409L, etc.), copper-nickel
alloy (C70600, C70620) and
some special steel grades (254SMO, S30815, 253MA)
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