• Origin：Tianjin
• Trademark：Youfa
• Specification：SGS
• Transport Package：Standard Export Package
• Model NO.：ysf-pipe
• HS Code：7306610000
• Production Capacity：100000 Tons , Month

ASTM A500 Gr. B Oiled Black Square Hollow Section pipeMaterialQ195,Q215,Q235,Q345 
A36
SS400
STKR400
ST37-2, ST52-3
S235JR, S275JR, S355J2, S355J2H
ASTM A500 Gr.A, Gr.B, Gr.CStandardsASTM A500  BSEN10219  GB/T3094 JIS G3466 BS EN10210 GB/T6728 BS1387SurfaceBared, Galvanized, Oiled,Or Other Anti-corrosive Treatment.
We can produce other specifications according to customers requirements.Applicationtructural Steel tube (tubing) can be used for a wide variety of mechanical applications. It may be used either statically or dynamically. I's close tolerances, good finish, and dense structure make it ideal for parts such as structural support and parts, frames, racks, trailer beds and trailer components, structural components and supports for buildings, bridges, and highways, conveyors, machine parts, guides, and supports,safety and deck rails, sign posts, athletic equipment, ornamental usages and a wide range of applications in industrial, construction, automotive, appliance, furniture and agricultural industries.
Normal dimension of square steel pipe:Square Hollow Section (SHS)Rectangular Hollow Section (RHS)Out dia.
(mm)Wall thickness
(mm)Out dia.
(mm)Wall thickness
(mm)10x100.5-1.010x200.6-1.012x120.5-1.012x250.6-1.016x160.6-1.220x400.6-1.619x190.6-1.525x500.8-2.7520x200.6-1.630x500.8-3.025x250.8-2.7530x600.8-3.030x300.8-2.7540x601.0-4.032x321.0-3.040x801.5-4.038x381.0-3.050x751.5-4.040x401.0-3.550x1002.0-6.050x501.0-5.050x1252.0-6.060x601.0-6.050x1503.0-6.063.5x63.51.0-6.060x801.5-6.070x701.5-6.060x1002.0-6.075x751.5-6.060x1202.0-6.080x802.0-6.075x1002.0-6.090x902.0-6.075x1252.0-6.0100x1002.3-6.075x1503.0-6.0120x1203.0-6.080x1202.0-6.0125x1253.0-6.080x1603.0-6.0150x1503.5-8.0100x1504.0-12200x2004.0-12100x1754.0-12250x2505.0-12100x2004.0-12300x3005.0-14150x2004.0-12350x3506.0-14150x2504.0-14400x4006.0-18150x3005.0-16500x5008.0-20200x3005.0-16600x6008.0-20200x4006.0-16
 
 300x5006.0-20
 
 400x6008.0-20
About our quality and advantage: sqaure steel pipes
1. No cracks and internal defects
2. Straightness
3. Without burrs or drops
4. Without surface scale
5. Smooth surface, no scratches
6. If welded: Welding line is good and tidy, no virtual welding; If seamless, no welding seam
7. The corner of square/rectangular tube is a little bit oval
Our steel tubing is mainly produced to GB-T3091,ASTM-A500, ASTM-A53, API 5L, BS1387 specifications.However we are able to produce tubing to other specifications.  Give us a call for additional information. We have the ability to flash control, flash cut, and produce tubing in various finishes.
If you have a specific finish that is required, please contact us for additional information.