Usage

Construction Hall Structure, Sea Trestle, Airport Structure, Shipbuilding, Security Door Frames, Garage Doors, Strengthening Liners of Steel Doors and Windows, Indoor Partition Walls, Cable Bridge Structures and Expressway Safety Guards, Balustrade, Decorating, Residential, Ornamental Pipes

Automotive Parts  Motorcar Case,  Car and Bus Manufacture, Vehicles

Agriculture Agricultural Equipment

Industry Machinery,  Solar Stent, Offshore Oil Field, Mine Equipment, Electromechanical Hardware, , heavy engineering, Mining and Resources, Process Engineering, Materials Handling,Mechanical Parts

Traffic  Walking Rails, Roll-up Doors, Guardrail, Plaza Structure, Signage, Road Furniture, Fencing

Logistics Storage Supermarket Shelves, Containers, Transport Industries, Commercial Construction

Other Sports Apparatus, Leisure Equipment, Furniture, School Furniture

Material Storage Racks, Pallets, Hydraulic Platforms, Trusses, Columns, Purlins, Greenhouse Stands Towers

QUALITY STANDARD

ERW HFI , EFW, LSAW, DSAW

GB/T 13793 Longitudinal electric resistance welded steel tubes

GB/T 6728 Cold formed steel hollow sections for general structure--Dimensions,shapes,weight and permissble deviations

ASTM A500 Cold Formed Welded and Seamless Carbon Steel Steel Structural Tubing in Round and Shapes

ASTM A 53 Standard Specification for Pipe, Steel, Black and Hot-Dipped, Zinc-Coated, Welded and Seamless

EN 10219 Cold formed welded structural hollow sections of non-alloy and fine grain steels

JIS G 3466 Carbon steel Square for general structural purposes

BS 6323 PART5 SEAMLESS AND WELDED STEEL TUBES FOR AUTOMOBILE MECHANICAL AND GENERAL ENGINEER PURPOSE

IS  1161 Steel Tubes For Structural purpose and Electric poles. 

IS  3601 Steel tubes for mechanical & general engineering purposes. 

IS  3074 Steel tubes for Automobile purpose. 

IS  4923 Steel tubes for Hollow sections used in structures 

EN 10296  Welded circular steel tubes for mechanical and general engineering purposes.

DIN 1626 WELDED CIRCULAR TUBES OF NON ALLOY STEELS WITH SPECIAL QUALITY

EQUIREMENTS

DIN 2394 WELDED AND SIZED PRECISION STEEL TUBES

BS 6363 WELDED COLD FORMED STEEL STRUCTURAL HOLLOW

SAW SSAW

SY/T 5040 Spiral submerged arc-welded steel pipe piles

CJ/T 3022 Spiral submerged-arc welded steel pipe for municipal heat supply

ASTM A252 WELDEDAND SEAMLESS STEEL PIPE PILES

Scaffolding Tube

GB 15831 Steel tube scaffold couplers

EN 39 Loose steel tubes for tube and coupler scaffolds

BS 1139 Metal scaffolding 

Steel Grade

GB/T 13793, GB/T 6728, GB 15831, SY/T 5040,CJ/T 3022

Q195, Q215, Q235, Q275, Q295, Q345, 08F, 08, 08AL, 08F, 10F, 10, HG5, DF08 SPHC, M8

BS 1387, EN10217, EN 10219  S185, S235, S235JR, S235 G2H, S275, S275JR, S355JRH, S355J2H, St12, St13, St14, St33, St37, St44, ST52

EN 10296 E275K, E355K, E460K

ASTM A500, ASTM A 53 Gr. A, Gr B, Gr C, Gr.D

JIS G 3466 SS330, SS440, SS490, SPHD, SPHE

Size

ERW, HFI, EFW

Outer Diameter 6mm-610mm (1/16"-24")

Wall Thickness 0.3mm-22mm

Length 0.5mtr-20mtr

LSAW, DSAW  

Outer Diameter 219mm-1820mm

Wall Thickness 5.0mm-50mm

Length 6mtr-18mtr

SAW SSAW

Outer Diamter 219.1mm - 4064mm (8" - 160")

Wall Thickness 3.2 mm - 40mm

Length 6mtr-18mtr

Hollow Sections

Square 10 mmx10mm - 500 mmx500mm

Retangular  10mm x 20mm - 600mmx400mm

Wall Thickness 0.5 - 20.0mm

Length 0 mtr - 18 mtr as customer required

Scaffolding Tube

Outer Diameter 38mm, 42mm, 48.3mm-48.6mm

Wall Thickness 2.0mm, 2.5mm, 2.75mm, 3.0mm, 3.25mm, 3.85mm, 4.0mm

Length 0.3mtr -18 mtr

Test Chemical Component Analysis, Mechanical Properties (Ultimate tensile strength, Yield

strength, Elongation), Technical Properties (Flattening Test, Flaring Test, Bending Test, Hardness Test, Blow Test, Impact Test etc), Exterior Size Inspection

Mill Test Certificate EN 10204/3.1B

<p>We, Shanghai Unite Steel Trading Co., Ltd, are committed to integrate steel resources in china and serve the global steel market. Our company has more than 15 years of experience in steel researching, production, managing and sales. And our team mostly are based on and worked in national famous steel enterprise before. In the aspect of resources and information, we have established cooperative relationship with nearly hundred enterprises, either state-owned or private owned in china, such as: DAYE Special Steel-a famous steel enterprise with the longest history; BAO Steel- the biggest one; Northeast Special Steel Group-the biggest special steel manufacture; TPCO- largest seamless steel tube production enterprise; and some large powerful welded pipe producer: Tianjin United Steel Pipe Co., Ltd. Guangzhou JuYi Steel Pipe Co., Ltd. Tianjin Zhongshun Petroleum Steel Pipe Co., Ltd. Shengli Oilfield Longxi Petroleum Steel Tube Co., Ltd. Etc. What's more, we have built long, deep and close business relationship with dozens of steel company, Sharing and holding equities with several steel enterprises. Because of the close cooperation with steel companies and our pioneering spirit, which can ensure us stay at the top competition, and ensure our customers get what they really want. Our company is specialized in Special steel bars and Steel tube products. They are classified as following: Special steel bars: carbon steel, alloy steel, mould steel, tool steel, gear steel, bearing steel, spring steel, high temperature steel, and stainless steel, etc. Steel tube products: general structure pipe, fluid pipe, mechanical processing pipe, oil tubing, casing pipe, line pipe and high pressure boiler tube, stainless steel pipe etc. We can supply steel products in China's National Standard, European Standard, American Standard and other national standard, etc. Please speak out your needs to us, and we will do our best and offer you our best reply! Let's expect China's steel product would ensure you to your good business development!</p>