Carbon Mild Steel Square Bar in Best Sale High Quality

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Payment Terms:
TT or LC
Min Order Qty:
500 m.t.
Supply Capability:
40000 m.t./month

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Product Description:

Carbon Mild Steel Square Bar in Best Sale High Quality

Main Structure:

  • Material: Steel

  • Dimensions: 60*60mm-150*150mm

  • Technique: Hot Rolled

  • Length: 2-12m

  • Standard: GB1499

  • Chemical Composition: C, Si, Mn, P, S, (B)

  • Alloy Or Not: Is Alloy

  • Shape: Square

  • Secondary Or Not: Non-secondary

  • Delivery: delivery on time

  • Type: steel square bar



Steel billet / Square steel/ Steel square bar

Standard grade

3SP/PS, 5SP/PS, Q195, Q235, 

Q255, Q275, 20MnSi etc.


1000 MT


Hot rolled, Continuous casting and rolling


50*50mm ~ 160*160mm




Loose packing, in bundle

Payment terms

T/T, L/C at sight, Usance L/C

Trade terms


Trans terms



Third party inspection accepted

Delivery time

15-30 days, according to the quantity


carbon structural steel, wire rod, rod, deformed bars, 

profile steel, machine parts, and steel moulds etc .


Customized service is available 

(for sizes,length and chemical components etc.).

Datas for Steel Grade:

Steel Grade

C %

Mn %

Si %

S %

P %




0.30 Max

0.04 Max.

0.04 Max.




0.30 Max.

0.04 Max.

0.04 Max.




0.30 Max.

0.045 Max.

0.050 Max.




0.30 Max.

0.045 Max.

0.045 Max.





0.050 Max.

0.040 Max.





0.050 Max.

0.040 Max.





0.050 Max. 

0.050 Max.


Why choose us:

1. More than 10 years experience in this industry

2. 100,000 tons exporting per month

3. Professional foreign trade team

4. OEM&ODM capacity

5. High quality assured & competitive price

6. Try our best to meet your needs & save your budget

7. Very popular in Southeast Asia, Africa, Mid-East and South America etc.

8. VIP membership system, first time customers and long-term cooperation customers can get extra discount on some products.


Carbon Mild Steel Square Bar in Best Sale High Quality

Carbon Mild Steel Square Bar in Best Sale High Quality

Carbon Mild Steel Square Bar in Best Sale High Quality

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Q:Steel plate coated cement mortar, how can bonding firm?
We've done this kind of projectIt can be used to weld some broken wire mesh or suitable waste steel bar on the steel plate, which can play the effect of scraping, and then plastering according to the general procedure. The effect is fine, there are basically no hollowing
Q:What do you pay attention to?
Considering the quality factor, quality of the primer must have good corrosion resistance, and the old paint film or metal layer has good adhesion, excellent filling force, smooth surface; from the construction perspective, quality should be applied to the body of the primer, vehicle repair and local repair; from the view of time and operation high quality, primer volatilization and shorter drying time and simple mixed paint; considering body material, quality repair primer should be used for the old paint, aluminum, galvanized steel, stainless steel, fiber, plastic products, hard wood, putty and other substrates.
Q:How much is a steel sheet per square meter?
Steel plates are priced by weight. They are different from one square meter in thickness and weight. The price is different.
Q:What is the difference between hot rolled steel and controlled rolled steel plate? Can two plates be used interchangeably?
Controlled steel plate is called controlled rolling and controlled cooling, referred to as controlled rolling and controlled cooling.
Q:Is color steel plate the same as color steel tile?
Tile color steel tile is used for color coated steel plate, pressure plate and the roller of cold bending into various wave types, it is suitable for industrial and civil buildings, warehouses, special buildings, large-span steel structure house roof, walls and wall decoration, has the characteristics of light weight, high strength, color rich, convenient construction, affluence earthquake, fire, rain, long service life, maintenance free, have been widely applied.
Q:What type of welding rod is used for steel Q245R and Q235B material?
Q245R is generally used in boiler or pressure vessel, if it is a large diameter cylinder welding body in wall thickness below 8mm recommended the use of arc welding J507 welding rod, double welding, carbon arc gouging back, to obtain qualifiedQuality; when the wall thickness is thicker, submerged arc welding can be used and welding with H08MnA welding wire and HJ431 flux is used;
Q:What is Larson steel sheet pile?"
As a kind of new building materials in the Larson steel sheet pile cofferdam, bridge construction, large pipeline, temporary ditch excavation for retaining, retaining water and sand retaining wall; in the wharf, unloading field wall, retaining wall, Levee Revetment, play an important role in engineering. As a cofferdam, Larson steel sheet pile is not only green and environmental friendly, but also has fast construction speed, low construction cost and good waterproof function.
Q:What welding rod should be used for welding of cast iron and Q235B steel plate?
Such as outdoor and field construction, should be relatively closed work environment, do a good job of wind work, reduce air flow. Two. Use acetylene torch to preheat the welding and its surrounding parts, and then weld them to a temperature. Three, welding side edge knocking release and eliminate stress. Four, slow cooling is correct, after welding torch with air flow slow heating, avoid welding temperature drop.
Q:What is a fixed length steel plate?
Fixed length: it is a kind of commonly used steel specification, which means that the size of steel supplied is certain.
Q:Should the carbon fiber reinforce the steel bar on the side of the beam?
Not necessarily, mainly depends on how the design is calculated, usually put 100~200mm carbon fiber layering

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