High Quality Steel Flat Bar with Grade Q235

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Loading Port:
Tianjin
Payment Terms:
TT OR LC
Min Order Qty:
25 m.t.
Supply Capability:
100000 m.t./month

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Product Description:

Specification of Steel Flat Bar

Commodity: Carbon Steel Flat Bar

Standard: GB,JIS,ASTM,

Material: Q235,SS400 or Equivalent

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

 

 

 

 

 

 

 

 

 

 

 

 

Above sheets show the technical data of Q235,we can also provide other materials similar to Q235.

Usage/Applications of 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  Steel Flat Bar

Packaging Details: The 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.

 

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Q:How to connect the base of the tower crane and the flat steel? How can it be welded and connected?
And the tower back to the set screw connection, generally need a group, that is, tower crane foundation diagonal two lines, two ground connection! The distance should be more than six meters.
Q:The minus sign in front of what 40 galvanized flat steel
Also called hot galvanized and hot dip galvanizing: 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:The total floor distribution along the wall surface 40x4 galvanized flat steel, flat paint is painted yellow mark or brush a straight chute
Mainly to use insulating coatings.
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:Do I need to make the ring galvanized flat steel ground connection between the electric well and the distribution room?
There is also a dark, in the foundation of the house to consider the distribution of indoor total potential imbalance, in the basic reinforcement welding has been laid. Later, when installing the equipment, just connect in place
Q:What is the weight calculation formula for galvanized flat steel and galvanized steel angles?
(1) grounding wire is generally made of 40mm * 4mm galvanized flat steel.(2) galvanized steel or angle steel for earthing body. The diameter of the steel pipe is 50mm, the wall thickness of the pipe is not less than 3.5mm, and the length is 2 to 3m. Angle iron shall be 50mm * 50mm * 5mm.(3) the top of the grounding body from the ground 0.5 ~ 0.8m, in order to avoid thawing soil, soil resistivity or steel angle as the root number of the ground around the body and decide, generally not less than two, each spacing is 3 ~ 5m(4) the distance between the grounding body and the building is over 1.5m, and the distance between the grounding rod and the independent lightning rod is greater than 3m.(5) the connection of grounding wire and earthing body shall be done by lap welding.
Q:What do the numbers in the steel HN346*174*6*9 refer to?
Small steel: small steel, middle, round, square, flat steel processing and use, similar to large steel, small diameter round steel is often used as building steel.
Q:What is the appearance of hot galvanizing and cold galvanized flat steel?
The hot-dip galvanized pipe is an alloy layer that causes molten metal to react with the iron matrix, thus combining the substrate with the two coating. Hot dip galvanizing is the first steel pickling, in order to remove iron, steel pipe surface after pickling, cleaning by ammonium chloride or zinc chloride solution or ammonium chloride and zinc chloride aqueous solution tank, and then into the hot dip tank. Hot dip galvanizing has coatingThe utility model has the advantages of uniform force, strong adhesion, long service life, etc..
Q:Is there a requirement for the ground resistance of the field motor? Is it good to use ground flat steel or ground wire?
The grounding steel is better, the resistance is small, and the wiring is convenient, and the grounding is flat steel.
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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