Wholesale hot rolled steel flat bar with lowest price

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Loading Port:
Tianjin
Payment Terms:
TT or LC
Min Order Qty:
30 m.t.
Supply Capability:
30000 m.t./month

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Product Description:

Specifications

1passed the ISO9001:2000
2steel manufacturer,30 years experience
3near the seaport ,low cost
4good reputation and service

 

Carbon steelsdo rust easily, but they can be easily painted or primed. They are cheap so they are the normal choice for most

fabrications. Mild Steel can be easily cut or drilled to meet your requests.

 

Mild Steel Flat Bar is generally used for fabrication, frameworks and for structural items. Such as:

 

Plastic moulds, cold work die and mould base as well as constructional part .

Automobile manufacturing( Auto girders special steel

Shipping manufacture

Railway special pad

Mechanical steel

section size: axb=(650-580)x(6-50)

 

lenght : 6m/9m/12m or as required

Chemical composition of Q235

 

Alloy No

Grade

Element(%)

C

 

Mn

 

S

 

P

 

Si

 

 

Q235

 

 

B

 

 

0.12—0.20

 

0.3—0.7

 

≤0.045

 

≤0.045

 

 

≤0.3

 

 

Physical properties of Q235

 

Alloy No

Grade

Yielding strength point(Mpa)

Tensile strength (Mpa)

Elongation after fracture(%)

Thickness (mm)

Thickness (mm)

≤16

>16--40

>40--60

>60--100

≤16

>16--40

>40--60

>60--100

 

Q235

 

B

 

235

 

225

 

215

 

205

 

375--500

 

26

 

25

 

24

 

23

 

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Q:Please: hot galvanized flat steel and copper clad steel ground!
Copper layer adhesion is high: because the copper layer and the surface of the steel is the combination of molecules, so the degree of adhesion is high, in the stranding of synthetic strands, the copper layer will not be damaged, there will be no separation, skin cracking and cracking.
Q:What's the meaning of ground flat steel -60*8 hot dip galvanizing?
Hot dip galvanized (galvanizing) also called hot dip galvanized and hot dip galvanizing: is an effective way of metal corrosion, mainly used for metal structure on the facilities of the industry. The steel piece after being cleaned is dipped into the molten zinc liquid at about 500 DEG C so that the zinc coating is adhered on the surface of the steel member so as to prevent corrosion.
Q:Lightning protection grounding, what is called three surface welding?
When lap welding is adopted, the welding length is as follows:1, galvanized steel bar is not less than its width of 2 times, three surface welding. When the width of flat steel is different, the length of lap should be wide. Before laying, the flat steel should be adjusted straight, simmer, bend not to die, straight line should not be obvious bending, and should stand upright.2, galvanized round steel welding length of 6 times its diameter, and should be double-sided welding (when the diameter is not the same, the length of overlap in diameter should prevail).3, galvanized round steel and galvanized flat steel connection, its length is round steel diameter of 6 times.4, galvanized flat steel and galvanized steel pipe welding, in order to connect reliable, in addition to contact in itBoth sides of the site shall be welded, and the flat steel itself shall be bent in an arc to be welded with the steel pipe.
Q:Where can I buy ground level bending machine?
When lap welding is adopted, the welding length is as follows: 1. Galvanized steel bar is not less than 2 times its width, no less than three surface welding. When the width of flat steel is different, the length of lap should be wide. Before laying, the flat steel should be adjusted straight, simmer, bend not to die, straight line should not be obvious bending, and should stand upright. 2. The length of galvanized round steel shall be no less than 6 times of its diameter, and shall be welded on both sides (when the diameter is different, the lap length shall be of big diameter).
Q:Where is the use of flat steel in electrical use?
The main use of galvanized grounding in building electric device, equipotential connection, such as transformer neutral point grounding, power distribution cabinet repeatedly grounding of electrical equipment and protective metal pipeline grounding and equipotential connection of buildings, building the underground lightning belt (that is the root of a plurality of buried steel the grounding electrode connected), building lightning deflectors and high-rise building equalizing ring (without using the building structure reinforcement), cable bracket (laminated cable trench or substation room or subway) or slot (or tray tray) metal grounding connection, welding and in the use of bolt connection, look to determine the design requirements and conditions, generally buried (wall) welding used in concrete or concealed, must be at least three surface welding, welding (two flat lap length Larger than the width of flat steel 2.2-2.5 times, round steel and flat steel lap length is greater than round steel 6-8 times, welding mouth does not allow slag, meat and remove welding slag, welding finished, in addition to concrete, do anti-corrosion, rust prevention;
Q:What is 40x4 galvanized flat steel, please?
Refers to the galvanized flat steel, width 12-300mm, thickness 4-60mm, cross section is rectangular and with pure edge of galvanized steel. Galvanized flat steel can be finished steel, also can be galvanized pipe blank and galvanized belt.
Q:What is the appearance of hot galvanizing and cold galvanized flat steel?
The appearance of cold plating smooth point heat plating, there is also the difference between the two prices, if the project budget it is recommended to use a hot dip, if it is hot for outdoor plating relatively easy to rust, cold plating used in outdoor it is easy to rust, the appearance is not good, relatively Engineering the quality will also be questioned, if you can use the indoor cold plating, can save a lot of budget
Q:What is the difference between steel band and steel ring? The steel strip is flat steel and the steel ring is made of steel. Am I right?
A steel strip is a steel strip of relative range, and can be called a steel strip when the width is less than 1000.
Q:The grounding electrode 50 angle steel and the ground wire 50, the flat steel lap welding, according to the specification 169 needs the flat steel to be late 90 degrees, bends close to the angle steel side, the overlap width is 4 times (200mm)?
Flat steel and steel, flat steel and angle steel, in order to reliable connection, should be in addition to the contact regions on both sides of the welding, and welding with arc steel should be bent into (or rectangular) clips or directly from the strip itself curved (or rectangular) and steel (or steel) welding.
Q:The steel, steel and flat steel, round steel bar and what is the difference?
There is not much difference between round bar and steel bar, but the diameter range should be different. Can you hold it with hand?Inside the details of the difference, you can go to the tool book to see.

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