Audited Supplier
Q195/Q235/Q345
Welded
ERW
Carbon Steel
Galvanized
Pipeline Transport, Boiler Pipe, Hydraulic/Automobile Pipe, Oil/Gas Drilling, Food/Beverage/Dairy Products, Machinery Industry, Chemical Industry, Mining, Construction & Decoration, Special Purpose
20mm*20mm~750mm*750mm
1.0mm~20mm
0.5m~12m
Black/Galvanized/Paint
FRD
Package by Bundle
Q195/Q235/Q345
Made in China
7306900
Product Description
Material type | Hot rolled weld square steel pipe |
Out diameter | 10-600mm |
Thickness | 0.5-30.0mm |
Length | 3-12m or as per customers' requirements |
Material | Q195-Grade B, SS330, SPC, S185 Q215-Grade C,CS Type B, SS330, SPHC Q235---Grade D, SS400, S235JR, S235JO, S235J2 Q345---SS500, ST52 |
Standard | GB/T13793-1992,GB/T14291-2006, GB/T3091-1993,GB/T3092-1993,GB3640-88 BS1387/1985,ASTM A53/A36,EN39/EN10219,API 5L,GB/T9711.1-99 etc |
Surface treatment | Galvanized,or black |
Zinc coating | pre galvanized steel pipe: 60-150g/m2 hot dipped galvanized steel pipe:200-400g/m2 |
Application | Widely used in Structure, Accessorize,Construction, Fluid transportation,machinery parts,the stress parts of the automobile tractor parts and so on |
Package | 1) Big OD: in bulk 2) Small OD: packed by steel strips 3) Plastic bags 4) According to customer's requirement5) 25 tons/container and 5 tons/size for a trial order; 6) For 20" container the max length is 5.8m; 7) For 40" container the max length is 11.8m. |
MOQ | 2MT as trial order |
Delivery time | Within 7-15 days after receiving the 30% TT deposit |
Payment | 30%TT in advance and the balance against the copy of B/L or irrevocable L/C at sight |
Specifiction list | |||||||
OD mm | WT mm | OD mm | WT mm | OD mm | WT mm | OD mm | WT mm |
15x15 | 0.5-2.0 | 28x28 | 0.5-3.0 | 75x75 | 1.0-5.0 | 160x160 | 2.5-12 |
16x16 | 0.5-2.0 | 30x30 | 0.5-3.25 | 80x80 | 1.0-5.0 | 180x180 | 2.5-12 |
18x18 | 0.5-2.0 | 35x35 | 0.5-3.5 | 90x90 | 1.0-6.0 | 200x200 | 2.5-12 |
19x19 | 0.5-2.0 | 40x40 | 0.8-3.75 | 100x100 | 1.0-6.0 | 300x300 | 2.5-12 |
20x20 | 0.5-3.0 | 50x50 | 0.8-3.75 | 120x120 | 2.5-12 | 400x400 | 2.5-12 |
24x24 | 0.5-3.0 | 60x60 | 1.0-4.0 | 140x140 | 2.5-12 | 500x500 | 2.5-12 |
25x25 | 0.5-3.0 | 70x70 | 1.0-5.0 | 150x150 | 2.5-12 | 600x600 | 2.5-12 |
Material list | ||||||||
Elements | Chemical Composition% | Mechanical Property | ||||||
Material | C% | Mn% | S% | P% | Si% | Yield Point | Tensile Strength | Elongation |
(Mpa) | (Mpa) | (%) | ||||||
Q195 | 0.06-0.12 | 0.25-0.50 | <0.05 | <0.045 | <0.3 | >195 | 315-430 | 32-33 |
Q235 | 0.12-0.2 | 0.30-0.70 | <0.045 | <0.045 | <0.3 | >235 | 375-500 | 24-26 |
Q345 | <0.20 | 1.0-1.6 | <0.04 | <0.04 | <0.55 | >345 | 470-630 | 21-22 |
What is black square&rectangular steel pipe?
Welding pipes is one of the simplest and most durable ways to join piping together and steel pipes can simply be welded together with MIG (metal inert gas), TIG (tungsten inert gas or SMAW (stick metal arc) welding. Before welding two pipes together, avoid any gaps between the two pipes. While welding, take measures to ensure the continual alignment of the two pipes.
What is pre galvanized square&rectangular steel pipe?
The pre-galvanized welded steel piperefers to welded tube which undergo degreasing,rush removal,phosphorization,zand drying processes before galvanization.The treatments before galvanization allow the product to be conveniently plated with a zinc coating,and also ensure uniform coating thickness,strong coating adhesion,and improved corrosion resistance
What is hot dipped galvanized square&rectangular steel pipe?
Hot-dip galvanizing (HDG), as referenced is the process of dipping fabricated steel into a kettle or vat of molten zinc. While the steel is in the kettle, the iron metallurgically reacts with the molten zinc to form a tightly-bonded alloy coating that provides superior corrosion protection to the steel..
