Galvanized Steel Flat Bar

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Specification of Carbon Steel Flat Bar

Commodity: Carbon Steel Flat Bar

Standard: GB, JIS, ASTM,

Material: Q235, SS400 or Equivalent

Origin place: China

Thickness: 3mm-30mm


Length: Max 12m

Certification: SGS/BV


Chemical composition of Q235

Alloy No
















Physical properties of Q235

Alloy No


Yielding strength point(Mpa)

Tensile strength (Mpa)

Elongation after fracture(%)

Thickness (mm)

Thickness (mm)





















Usage/Applications of Carbon Steel Flat Bar

Widely used for construction;

Machinery manufacturing;

Iron tower steel structure;

Shipbuilding; Steel grating;




Railway spare parts;

Boilers making etc.


Packaging & Delivery of Carbon 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.


Production Flow of Carbon Steel Flat Bar

The Carbon 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.




Q1: Why buy Materials & Equipment from

A1: All products offered are carefully selected from China's most reliable manufacturing enterprises. Through its ISO certifications, adheres to the highest standards and a commitment to supply chain safety and customer satisfaction.


Q2: How do we guarantee the quality of our products?

A2: We have established an advanced quality management system which conducts strict quality tests at every step, from raw materials to the final product. At the same time, we provide extensive follow-up service assurances as required.


Q3: What makes stainless steel stainless?

A3: Stainless steel must contain at least 10.5 % chromium. It is this element that reacts with the oxygen in the air to form a complex chrome-oxide surface layer that is invisible but strong enough to prevent further oxygen from "staining" (rusting) the surface. Higher levels of chromium and the addition of other alloying elements such as nickel and molybdenum enhance this surface layer and improve the corrosion resistance of the stainless material.




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Q:What is flat steel, please? What are the specifications of flat steel?
Flat steel can be finished steel, or can be used as the blank of welded pipe and thin slab for laminated sheet rolling.
Q:How can copper clad steel ground electrode and galvanized flat steel be welded?
Using hot fusion welding. It is welded firmly and will not corrode the weld because of electrochemical action.The common copper clad steel wire electrode is copper wire.
Q:How can copper cables and flat steel be welded together?
If it is filamentous, press press terminal (open type to cut tin). The terminal is pressed onto flat steel for corrosion protection. It is not allowed to be directly pressed to flat steel, so it must be brazed to flat steel by copper
Q:What does QB stand for in Q235B flat steel? What's the difference between Q235B and Q235A?
There are also some subtle differences between Q235A and Q235B:1, chemical composition: Q235A:C:0.14~0.22:Mn:0.30~0.65; S:0.050;2, mechanical properties: tensile test without distinction, impact test A do not do, Q235B I-beam, Q235B angle steel, Q235B channel steel, Q235BH steel, Q235B flat steel B do 20 degree impact test, V type impact power (longitudinal) J no less than 27.
Q:Hot dip galvanized flat steel specification 40X4, 60X6 meaning?
Section size of flat steel * width * thickness. Unit: mm.
Q:Building poles, outdoor flat steel, the deeper the buried depth, the better?
Building poles, outdoor flat steel, buried depth is not as deep as possible. According to the standard requirements, the level of the embedded depth is not less than 0.6 meters.
Q:Can roof strip be replaced with steel pipe instead of flat steel and round steel? Are there any examples of practical use?
The steel tube seems to be used only as a lightning rod and must be galvanized steel pipe. As for lightning belts... How expensive ah, it does not say, galvanized steel tube bending with large area, not fixed, and each tube about 2m, every 2m connection also can not afford ah. Feel even if there is excess steel pipe, it is better to buy round steel to cost-effective.
Q:Why is it better to use round steel than that of flat steel in lightning protection?
Exposed on the outside with round steel, due to corrosion of small, dark buried flat steel, because of large welding area, reliable connection.
Q:80 * 80 * 4 galvanized flat steel is what specifications?
Galvanized square pipe.Specification: 80 * 80 * 4 is the dimension of galvanized square pipe. That is to say, the length and width of the inner diameter of the nozzle are 80mm, and the thickness of the tube wall is 4mm.
Q:What is the thickness deviation of 40*4 galvanized flat steel?
Main application: flat steel is used as a material, used for making iron, tools and machinery parts, and used as frame structures and escalators for buildings

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