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GrB Cold Formed Square Structural Steel Pipe Seamless Plain End Protector ASTM A500

Minimum Order Quantity : 5 ton Price : USD 1200-2500/ ton
Packaging Details : In bundles with seaworthy packing Delivery Time : 45-60days
Payment Terms : T/T, L/C, D/A, D/P, Western Union, MoneyGram Supply Ability : 6000ton
Place of Origin: China Brand Name: TORICH
Certification: SO9001:2008 ,TS16949 Model Number: ASTM A500

Detail Information

Product Name: Square Steel Tube Standard: ASTM A500
Material: GrB GrC S355JR Q235 Q345 Type: Seamless
Terms Of Trade: FOB,CIF, CFR Brand: TORICH
Transportation: Ocean, Air Certificate: ISO9001, TS16949
End Protector: Plain MTC: En10204.3.2B
High Light:

cold formed steel tube


structural steel square tubing

Product Description

ASTM A500 GrB Cold Formed Structural Carbon Steel Square Tube


Standard: ASTM A500 Seamless Steel Rectangle Tubing
Cold-Formed Seamless Carbon Structural Tubing in Rounds and Shapes Rectagnle and Square



For construction of bridges, and buildings, and for general strcutrual purposes,

For Algricultrual Michinery, Engineering etc.

Size range:

Square tubes O.D. :20-20 to 500-500mm W.T.:1-24mm L:max12000mm
Rectangle tubes O.D. :20-30 to 400-600mm W.T.:1-24mm L:max12000mm


Steel Grade:

ASTM A500 -- GrB GrC

S355JR Q235 Q345



Tubes are made by seamless process.

The tubing may be stress relieved or annealed, as is considered necessary by the tubing manufacturer, to conform to the requirements of this specification.



Straightness--The permissible variation for straightness of structural tubing shall be 1/8 in times the number of feet (10.4mm times the number of meters) of total length divided by5.

Squareness of sides— For square and rectangular structural tubing, adjacent sides may deviate from 90° by a tolerance of ±2° maximum.

Radius of Corners— For square or rectangular structural tubing, the radius of any outside corner of the section shall not exceed three times the specified wall thickness.


Workmanship, Finish, and Appeaerance:

All tubing shall be free from defects and shall have a workmanlike finish.

Surface imperfections shall be classed as defects when their depth the remaining wall thickness to less than90% of the specified nominal wall thickness.


Quality Control

1~ Incoming Raw Material Inspection
2~ Raw Material Segregation to avoid steel grade mix-up
3~ Heating and Hammering End for Cold Drawing
4~ Cold Drawing and Cold Rolling, on line inspection
5~ Heat Treatment, +A, +SRA, +LC, +N, Q+T
6~ Straightening-Cutting to specified length-Finished Measuring Inspection
7~ Machanical Testing in own labs with Tensile Strength, Yield Strength, Elongation, Hardness, Impact, Mictrostruture etc
8~ Packing and Stocking.


Square Steel Tube  ASTM A500 Square Tube







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