High Quality Mild Steel Flat Bar in 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:Do lightning protection, lead out of the galvanized round steel, flat steel needs to be inspected?
When you buy hot galvanized round steel and flat steel, please provide inspection documents. In addition, in the procurement of materials must be explained that hot galvanizing, or else the business to provide you with cold plating will not work; there is a certain price gap between the two.
Q:The difference between galvanized round bar and galvanized flat steel
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. With high strength, light structure: strong grid welding structure, so that it has high load, light structure, easy lifting and other features, beautiful appearance, durable.
Q:Construction of electrical grounding steel flat buried anti-corrosion requirements, galvanized steel flat welding parts should be done anti-corrosion treatment, not welding parts are also doing anti-corrosion treatment?
Galvanized steel itself anti-corrosion, if there is no welding parts, then no longer do anti-corrosion treatment
Q:Where can I buy ground level bending machine?
When galvanized round steel is connected with galvanized flat steel, its length is not less than 6 times of the diameter of round steel. If necessary, it should be welded at right angle with auxiliary round steel or flat steel.
Q:Can lightning protection earthing steel bar be directly welded with thread steel?
Yes, but the length of the weld must be greater than or equal to 6 times the length of the steel bar, double sided welding. If one side welds, double the length of the weld. Otherwise, lightning acceptance is not up to standard.
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:Connect the equipotential terminal box to the ground flat iron. Can I use plain flat steel?
Specification requirement is 25*4 or 40*4 hot galvanized flat steel, said the family specification is also very reasonable, even galvanized flat steel, long time buried in the soil or on the floor, the wall will be laying, easy to rust, if we use the normal flat iron, not to mention that, certainly rust, but the speed is much faster than galvanized flat steel!
Q:What is the thickness deviation of 40*4 galvanized flat steel?
40*4 galvanized flat steel GB permitted negative deviation value is the thickness deviation value is 0.2mm, the deviation 0.4mm, the width deviation value is the upper deviation 0.5mm, lower deviation 1.0mm,

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