Square TubeStandard AISI,ASTM,DIN,JIS,GB,JIS,SUS,EN,etc
Material Q195, Q215, Q235, Fe310, Fe360, St33, St37-2, SS330, SS400, S235, S275, S355, ASTM 1010, ASTM 1017, ASTM 1020
Grade Q195 = S195 / A53 Grade A
Q235 = S235 / A53 Grade B / A500 Grade A / STK400 / SS400 / ST42.2
Q345 = S355JR / A500 Grade B Grade C
Length 2-12m or as request
Thickness 0.1mm-300mm or as required
Outer Diameter 10mm-600mm or as customized- Q215 Square TubeStandard AISI,ASTM,DIN,JIS,GB,JIS,SUS,EN,etc
Material Q195, Q215, Q235, Fe310, Fe360, St33, St37-2, SS330, SS400, S235, S275, S355, ASTM 1010, ASTM 1017, ASTM 1020
Grade Q195 = S195 / A53 Grade A
Q235 = S235 / A53 Grade B / A500 Grade A / STK400 / SS400 / ST42.2
Q345 = S355JR / A500 Grade B Grade C
Length 2-12m or as request
Thickness 0.1mm-300mm or as required
Outer Diameter 10mm-600mm or as customized 
St33 Square TubeStandard AISI,ASTM,DIN,JIS,GB,JIS,SUS,EN,etc
Material Q195, Q215, Q235, Fe310, Fe360, St33, St37-2, SS330, SS400, S235, S275, S355, ASTM 1010, ASTM 1017, ASTM 1020
Grade Q195 = S195 / A53 Grade A
Q235 = S235 / A53 Grade B / A500 Grade A / STK400 / SS400 / ST42.2
Q345 = S355JR / A500 Grade B Grade C
Length 2-12m or as request
Thickness 0.1mm-300mm or as required
Outer Diameter 10mm-600mm or as customized- ASTM 1010 Square TubeStandard AISI,ASTM,DIN,JIS,GB,JIS,SUS,EN,etc
Material Q195, Q215, Q235, Fe310, Fe360, St33, St37-2, SS330, SS400, S235, S275, S355, ASTM 1010, ASTM 1017, ASTM 1020
Grade Q195 = S195 / A53 Grade A
Q235 = S235 / A53 Grade B / A500 Grade A / STK400 / SS400 / ST42.2
Q345 = S355JR / A500 Grade B Grade C
Length 2-12m or as request
Thickness 0.1mm-300mm or as required
Outer Diameter 10mm-600mm or as customized
