Prime quality square alloy steel billet 175mm Q235

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100 m.t.
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10000 m.t./month

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Structure of Prime quality square alloy steel billet 175mm Q235

 Prime quality square alloy steel billet 175mm Q235

Description of Prime quality square alloy steel billet 175mm Q235 

1. Prepainted steel coil is coated with organic layer, which provides higher anti-corrosion property and a longer lifespan than that of galvanized or galvalume steel sheets. 

2. The base metals for prepainted steel coil consist of cold rolled, HDGI Steel, electro-galvanized and hot-dip alu-zinc coated steel. The finish coats of prepainted steel coil can be classified into groups as follows: polyester, silicon modified polyesters, polyvinylidene fluoride, high-durability polyester, etc.

3. The production process has evolved from one-coating-and-one-baking to double-coating-and-double-baking, and even three-coating-and-three-baking.

4. The color of the prepainted steel coil has a very wide selection, like orange, cream-colored, dark sky blue, sea blue, bright red, brick red, ivory white, porcelain blue, etc.

5. The prepainted steel coils can also be classified into groups by their surface textures, namely regular prepainted sheets, embossed sheets and printed sheets.

 Prime quality square alloy steel billet 175mm Q235


Main Feature of Prime quality square alloy steel billet 175mm Q235

Uncoated CR steel sheet 

With the features of in line with the international highest standards in demension and shape, excellent surface finish and properties, the products are mainly used in home appliance and automobile industries.

Galvanized steel sheet(include HDG and EG)

With the features of good corrosion resistance, the products are mainly used in automobile, home appliance, electronics, building and machinery manufacture industries, etc.

Precoated steel sheet

With the features of enviromental protection and good processablility, long lasting surface durability, rich in colors, the products are maily used in building, home appliance and furniture industries, etc.


Applications of Prime quality square alloy steel billet 80mm Q235

Manufacture anticorrosion, industrial and civil architecture roof boarding, roof grille
Light industries
Home appliance's case, civil chimney, kitchen utensils
Auto industry
Corrosion resistant parts of cars
Food storage, meat and aquatic products' freezing and processing equipment
Equipments to store and transport materials, and packing implements

  Prime quality square alloy steel billet 175mm Q235


Specifications of Prime quality square alloy steel billet 175mm Q235


Prime quality square alloy steel billet 175mm Q235

Material Grade

SGCC / SGCH  / DX51D+AZ, etc






Thickness: +/-0.02mm , Width:+/-2mm




Raw material: Hot rolled steel coil --> Cold rolled_>hot dipped galvalume


Dried, Chromated, Unoiled


Regular spangle , small spangle, zero spangle


508MM 610MM

Coil weight


Export package

Cardboard inner sleeves, Waterproof paper, galvanized steel covered and steel strip packed


FAQ of Prime quality square alloy steel billet 175mm Q235

We have organized several common questions for our clients,may help you sincerely: 

1. How Can I Visit There?
  Our company is located in Tianjin City, China, near Beijing. You can fly to Tianjin Airport Directly. All our clients, from home or aboard, are warmly   welcome to visit us!  
2. How Can I Get Some Sample?
  We are honored to offer you sample.  
3. Why choose CNBM?
  Our delivery time about 15-20days for standard sizes, if you have other requirements like hardness, quanity and width ,it is about 20-40days. But don't worry we also try our best for the delivery time ,because time longer and our cost is higher.


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Remaining: 4000 characters

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Q:What are the common defects in billet? What's the cause?
4. Tungsten inclusion;Six, arc scratch and heat crack and overlap: 1:Two reheat cracks 3 cracks
Q:Billet market trend
1, domestic crude steel production remains highAlthough the recent domestic steel market has been relatively low, and the loss of steel mills win less, but this does not seem to affect the enthusiasm of steel production. According to the China Steel Association statistics show that: in early April, the daily output of crude steel in key enterprises in China was 1 million 697 thousand and 300 tons, and the average daily output of crude steel in China was estimated at 2 million 123 thousand and 900 tons. And in mid April, crude steel daily output of ten days, although there has been a drop back, but still at a high level. According to statistics, in mid April, the average daily output of crude steel in key enterprises nationwide was 1 million 689 thousand and 100 tons, and the average daily output of crude steel in China was estimated at 2 million 115 thousand and 800 tons. Such a large production and sluggish demand in stark contrast, which is a drag on steel prices down one of the important factors.
Q:20 what is the difference between manganese silicon steel billet and Q235 billet?
In brief, the ingredients are different and the uses are different.20 manganese silicon steel billet for high strength steel,Q235 billet is almost the most common steel, requiring the lowest.
Q:Can the production of continuous casting billet be damaged by using intermediate frequency electric furnace?
If there are no other major facts of harm, it seems that there is no such mandatory legal provisions to bear criminal responsibility. Mandatory closing and fines at most.
Q:The form of carbon in carbon steels
There are three solid solutions of carbon in iron: alpha solid solution (Tie Suti), gamma solid solution (austenite) and delta solid solution (8 ferrite). The spatial distribution of iron atoms in these solid solutions is consistent with that of alpha -Fe, gamma -Fe and delta -Fe. The size of carbon atoms is much smaller than that of iron atoms.
Q:What is the active carbon. What is the difference with the charcoal?
This decision of the activated carbon has Good adsorption of metal ions, adsorption, wastewater and waste gas in the harmful gases, organic pollutants, such as pigment. Application of activated carbon also requires high mechanical strength, good abrasion resistance, its structure to stabilize, adsorption energy required, to facilitate the regeneration. The active carbon used for oil, beverage, food, drinking water, decolorization, deodorization, gas separation, solvent recovery and air conditioning, adsorbent is used as a catalyst carrier and a gas mask. Charcoal is made from trees and dry, is a kind of fuel. Soil general burn charcoal, is placed in a kiln inner wood, after the ignition, when he arrived a certain temperature, closed kiln inlet, let the heat get distillation of wood and charcoal. To serve the people of Zhang Side is burning charcoal, charcoal kiln collapsed when.1 died
Q:The role of carbon content in steels
Carbon is the main alloying element of iron and steel, so steel is also called iron carbon alloy. The main role of carbon in steel is to:1., the formation of solid solution tissue, improve the strength of steel, such as ferrite and austenitic structure, are dissolved in carbon;
Q:Billet production process
Billets are produced by three process methods:First, through the steelmaking system of continuous casting equipment, from the direct pouring of molten steel billet;Two is the steel ingot produced by the steelmaking system or the continuous casting billet processed by the rolling equipment of the steel rolling system, and the three is the semi-finished product processed by the forging equipment of the steel ingot produced by the steelmaking system.
Q:How to calculate the cost price of billet?
The ratio of slag to billet (63% fine powder) is about 3:1, which accounts for about 60%. of billet cost
Q:How can carbon and carbon in a fishing rod be distinguished?
Carbon fishing rod is divided into: carbon, pure carbon, high carbon.Carbon packaging, as the name suggests, two layers of material, the outside is a layer of carbon cloth, the inside layer is glass fiber, epoxy cloth. This kind of pole price is lower, this kind of pole does not recommend the brand, because the price is low, does not need to buy the brand. With a few times you can change, for beginners.Pure carbon refers to the overall use of 30T carbon cloth below the production of fishing rod, general 24T, 30T based, carbon content of more than 98%. The price is moderate, the fishing rod is recommended in the field of Koi, Koi a large proportion of domestic brands is unmatched, good quality.High carbon refers to the overall use of 30T carbon cloth above the fishing rod, but not the whole fishing rod is made of a carbon cloth.

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