38X38 40X40 Metal Steel Tube/ERW Steel Tube/Iron Steel Tube/Galvanized Steel Tube Q195 Q235 Q345

Model NO.
Water-Proof Package
Transport Package
1/2"-48" 15X15mm to 400X400mm Thickness: 0.4-20mm
Our commission is to serve our users and clients with best quality and competitive portable digital products for 38X38 40X40 Metal Steel Tube/ERW Steel Tube/Iron Steel Tube/Galvanized Steel Tube Q195 Q235 Q345, The product will supply to all over the world, such as: Mecca, Thailand, Provence, we are sincerely hope to establish one good long term business relationship with your esteemed company thought this opportunity, based on equal, mutual beneficial and win win business from now till the future.
Black Square & rectangular & round Tube:
Product Hot Rolled Carbon Square Steel Pipe / Rectangular Black Pipe/ Hollow Section Mild Tubes/Round pipe

DIA: 1/2″-48″     WIDTH:15*15*MM-500*500MM       THICKNESS:0.4MM-20MM

Length 6M/9M/10M 12M, or cut as your demands
Technique Cold Drawn/ Cold Pilfered/ Cold Rolled/ Hot/ forge-Can be processed again repeatedly
Other Kit Anti-theft bolt,Nut,washer and so on.
Other processing service Hot dipped Galvanized, pre-galvanized, Color Painting, Coated, Cutting, Bending, Punching as long as you can tell us your requirement

Offer Standards

ASTMA53/ASTM A573/ASTM A 283/Gr.D/
GB/T3091-2001, GB/T13793-92, ISO630/E235B/
JIS G3131/JIS G3106
Materials ASTM 106, SS400, St37, St52, S235JR, S355TRH ect
Q195, Q235A-B, Q345A-E, 10#, 20#, 16Mn, ASTM A36,ASTM A500, ASTM A53, API 5L
Inspection Third party inspection can be offered like ISO, SGS, BV
Usage Mechanical&manufacture,Steel strcuture,Shipbuilding,Bridging,Automobile chassis
Another Name Sqare pipe, square tube, sqare hollow section


Payment terms :T/T ,L/C
Terms of trade :FOB ,CFR,CIF ,DDP,EXW
Minimum order : 1 tons
Lead time :o n or before 3-15 working days .
(Can Fast delievery time because of the large stock size and well experience in the
whole process of the international export business in this feild)

Black steel is the uncoated steel. When steel pipe is forged, a black oxide scale forms on its surface to give it the finish which is seen on this type of pipe. Because black steel is subject to rust and corrosion, the factory also coats it with protective oil. Those black steel are used for manufacturing pipe and tube, which will not rust for a long time and requires very little maintenance.

Usages:  Water, gas, air and steam, black steel tubes and pipes are utilized for gas distribution inside and outside the house and for hot water circulation in boiler systems. It is also used for line pipes in oil and petroleum industries, for water wells and for water, gas and sewage purposes. It is not used for potable water or for drain waste or vent lines.

Standard: BS 1387-1985, ASTM A500-GRA, GRB. ASTM A53, ASTM A513, ASTM A252-98, JIS G3444-2004 STK400/500, JIS G3452-2004, EN 10219, EN 10255-1996, DIN 2440
Material: Q195, Q235, Q275, Q345
Surface treatment: Galvanized, oil coating, lacquering
Production standard: ASTM A53, BS1387, EN10255, EN10240, EN10220, EN10219, En39