Commodityblack/galvanized square steel pipeSize20x20--400x400mm(square) 20x40--400x600mm (rectangular)Wall thickness0.7-20mm Length5.8m 6m or based on your requestStandardASTM A500 and so on (the Chinese material can be Q195,Q235Q345)SurfaceBlack, or Galvanized and Oiled to prevent the rust End finishPlain endMaterial
Q195→grade B, SS330, SPHC, S185
Q215→grade C, CS Type B, SS330, SPHC
Q235→grade D, SS400, S235JR, S235JO, S235J2Standards
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, CEUsageconstruction, building materialPackingIn bundles, packed in woven bag or as your request.HS code
7306610000