Square and rectangular pipe is a name for square pipe and rectangular pipe, that is, the steel pipe with equal and unequal length.
It is made of strip steel after process treatment.
In general, strip steel is unballed, leveled, crimped and welded into a round tube, which is rolled into a square tube and then cut to the required length.
Carbon steel rectangular tube
BSEN10296,BSEN10025,BSEN10297,BS6323,BSEN10219,BSEN10217,GB/T13793-1992,GB/T14291-2006GB/T3091-1993,GB/T3092-1993,GB3640-88, API5L ;GB/T9711.1-1997;EN10217/10219;SY5037;ASTM5252;DIN;BSGB/T9711.1~2;
Q195 → Grade B, SS330,SPHC, S185Q215 → Grade C,CS Type B,SS330, SPHCQ235 → Grade D,SS400,S235JR,S235JO,S235J2Q345 → SS500,ST52ST37-ST52,A53-A369,16Mn
0.5 – 20 mm
Fixed or Random ,by customer’s requiremnts
1) Bared2) Black Painted (varnish coating)3) Galvanized4) With Oiled5) 3 PE, FBE, corrosion resistant coating
Country of origin
30000 Metric Tons pet Month
1.Big OD:in bulk2.Small OD:packed by steel strips3.woven cloth with 7 slats4.according to the requirements of customers25 tons/container for pipe with usual outer diameter.For 20″ container the max length is 6m(diagonal loading)For 40″ container the max length is 12m (diagonal loading)
Petroleum line pipe: gas pipe: fluid pipe; construction & water project