Q235 Carbon Steel Square Pipe

The seamless square tube has high bending and torsional strength and light weight. It is a kind of economical section steel and is widely used to manufacture structural and mechanical parts. Such as oil drill pipe, automobile transmission shaft, bicycle frame and steel scaffold used in construction. Manufacturing annular parts with seamless square tubes can improve the utilization rate of materials, simplify the manufacturing process, and save materials and processing hours, such as rolling bearing rings, jack sleeves, etc.

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Standard	API, ASTM, BS, DIN, GB, JIS
Outside Diameter	21.3-1420mm
Wall Thickness	2.11-300mm
Dia Tolerance	Control with in the standard, OD:+-1%, WT:+-10%
Materials	10#,20#,45#,Q235,Q345,Q195,Q215,Q345C,Q345A
	ASTM A53A/A53B/ A178C/A106B API5L
	ST37,ST37-2,DIN 1629 ST35, ST45,DIN 17175 ST35.8,DIN 17175 19Mn5
	16Mn,Q345B,T1,T2,T5,T9,T11,T12,T22,T91,T92,P1,P2,P5,P9,P11,P12,P22,P91,P92,15CrMO,Cr5Mo,10CrMo910 ,12CrMo,13CrMo44,30CrMo,A333GR.1,GR.3,GR.6,GR.7
	Gr.B,X42,X46,X52,X60,X65,X70,X80,X100
Inspection	ISO,BV,SGS,MTC
Packing	Steel strip packed. Standard Export Seaworthy Package.Suit forall kinds of transport,or as required
Application	Widely used in Structure, Accessorize,Construction, Fluid transportation,machinery parts,the stress parts of the automobile tractor parts and so on
Shipment time	Within 7-10 workdays after receiving deposit or L/C