Q235 Q345 Carbon ERW Welded Square Steel Pipe

Size: Square pipe: 10x10 - 500x500mm Rectangular pipe: 10x20 - 400x600mm Wall Thickness: 0.6-20mm Length: 1-12m according to customers' requirements Zinc coating: 210-600g/m² standard Type: welded pipe/seamless pipe/cold drawn seamless tube Technique: electronic resistance welded (ERW) Standards: ASTM A53, BS1387, DIN2440 SGS, ASTM-A53A, BS1387-1985 GB/T3091-2001, GB/T8162, GB/T8163:10#, 20#, 35#, 45# 16MN(Q345B)GR. A, GR. B, GR. C ASTM A106 GR. A, GR. B, GR. C API 5L A B X42, X46, X52, X60, X65, X70, X80   Certificates: API 5L, API 5CT, ISO, CE Material Q195→grade B, SS330, SPHC, S185 Q215→grade C, CS Type B, SS330, SPHC Q235→grade D, SS400, S235JR, S235JO, S235J2 Surface treatment: 1) Bared 2) Black painted (varnish coating) 3) Galvanized 4) With oiled 5) As per request Remarks: 1) Payment term: T/T, L/C 2) Trade terms: FOB/CFR/CIF 3) Minimum quantity of order: 10MT 4) Delivery period: 10 to 30 days  Section shape: round/square/rectangular Object classification: decorat…