high quality flat bar hot rolled GB Q235 3-30MM

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Loading Port:
Tianjin
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TT OR LC
Min Order Qty:
25 m.t.
Supply Capability:
60000 m.t./month

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lat bar Details:

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Unit:m.t.Loading Port:
Supply Ability:10000Payment Terms:
Package:Steel Packing

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Specification of Mild Steel Flat Bar

Commodity: Mild Steel Flat Bar

Standard: GB;JIS

Material: Q195-235;SS400

Brand name: FLATSPACE

Origin place: China

Thickness: 3mm-30mm

Width:20mm-200mm

Length: Max 12m

Certification: SGS/BV

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
















Usage/Applications of Mild Steel Flat Bar

Widely used for construction, Machinery manufacturing, Iron tower steel structure, Shipbuilding; Steel grating, Staircase, Bridge, Viaduct, Railway spare parts, Boilers making etc.

Packaging & Delivery of Mild Steel Flat Bar

Packaging Details: The Mild Steel Flat Bars are packed in bundles and loaded in 20 feet/40 feet container, or shipped by bulk cargo ,also we can do as customer's requirements.

Delivery Details:30~45 days upon the receipt of buyer payment by T.T. or L/C.

Production Flow of Mild Steel Flat Bar

The Mild steel flat bar is made through three processes:

1.Feeding the material: Feeding the row material (the steel plate) to Slitting Line.

2.Slitting:The steel plate would be slitted into expected width by lengthways cutter.

3. Leveled and cutting: The plat bar would be ground into level by the grinder and then cut into required length


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Q:What is the tensile force of the galvanized flat steel of 20*3?
Since the specifications require that the stationary support be able to withstand the 49N pull, I wonder if this flat steel can withstand such a large pull to choose the flat type;
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 about the installation height of the socket and the height of the ground flat steel?
If the construction unit, design institute and contact Party A drawings or design change
Q:The function of ground lead out galvanized flat steel
Use and test, debug, you must use lead line.In accordance with the D501 specification, its cross section is not less than 4*40
Q:What is the difference between flat steel and steel strip?
It belongs to the conventional flat stainless steel series, steel to stainless steel sheet series, steel is cold rolled sheet, and a flat surface of hot rolled and cold rolled surface, flat iron is a common type of steel does not contain nickel, but sometimes some customers habitually called stainless steel flat steel flat iron.
Q:How can copper cables and flat steel be welded together?
The copper cable is pressed into the nose. It is punched through the steel and screwed,The national standard atlas is connected with a total equipotential terminal box.
Q:50*4 hot dip galvanized flat steel can be used as grounding. How many square feet can be used instead of ground wire?
The national standard is considered from an electrical angle. The size of the ground wire is defined as the same diameter of the ground wire and the phase line;
Q:What is the rolling range of the micro cold rolled flat steel production line?
Ferrous metals are alloys of iron and iron. Such as steel, pig iron, iron alloy, cast iron and so on. Steel and pig iron are based on iron, carbon as the main additive elements of the alloy, collectively referred to as iron carbon alloy.Pig iron is the product of smelting iron ore into a blast furnace. It is mainly used for making steel and casting.Put the casting pig iron smelting in cupola, to obtain iron (liquid), the liquid cast iron cast into casting, the cast iron is cast iron.
Q:What is flat steel for?
Forged flat steel is a forged strip of steel with a rectangular cross section. Forging injustice can get certain shape and size and forgings, casting microstructure of the steel is remarkably improved, increase the density of steel; can change the distribution of the fiber structure, clear anisotropy, improve the mechanical properties of the metal, so that the strength and toughness of steel are improved; and it can be used to process the plastic lower high Shuogang and high alloy steel. Forged flat steel is mainly made of high quality alloy steel, mainly used as springs, tools and important mechanical parts. The specification for wrought flat steel is expressed in millimeters of thickness * width. The specification is 20mm*40mm~160mm*300mm.
Q:Galvanized steel flat welding occurs after the material itself crack.
Cold crack: a cold crack is a weld crack that occurs when the joint is cooled to a lower temperature. The causes are the quenching tendency, the residual stress, the diffusion hydrogen content of the weld metal and the heat affected zone.

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