Standard

BS1387,EN10297,BS6323,BSEN10217,GB/T13793-1992,GB/T14291-2006,GB/T3091-1993,GB/T3092-1993,GB3640-88,ASTMA53/A36,EN39/EN10219,API5L,GB/T9711.1-99,etc

Steel material

Q195 → Grade B, SS330,SPHC, S185
Q215 → Grade C,CS Type B,SS330, SPHC
Q235 → Grade D,SS400,S235JR,S235JO,S235J2
Q345 → SS500,ST52

Size

Round pipe:21.1~3048mm*1.65~25.4mm
Square pipe:20*20~800*800mm*1.5~16mm
Rectangular pipe:20*40~800*1000mm*1.5~16mm

Surface Treatment

1/ Bared            2/ Black Painted (varnish coating)
3/ Galvanized     4/ With Oiled
5/ 3 PE, FBE, corrosion resistant coating

Ends

1/Plain   2/Beveled    3/Thread with Coupling or cap

End protector

1/Plastic pipe cap    2/ Iron protector