Raw Material Steel Rectangle Billet Bars

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Loading Port:
China main port
Payment Terms:
TT OR LC
Min Order Qty:
100 m.t.
Supply Capability:
100000 m.t./month

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Product Description:

Range of thickness: 150-240 - mm +/- 5 mm width range: 880-1530 - mm +/- 20 mm

Length: 3700-10000 - mm +/- 500 - mm

Cross-sectional size: 64 * 64; 82 * 82; 98 * 98; 124 * 124; 120 * 150; 152 * 164; 152 * 170 mm

Length: 9000 mm

Section of tolerance: billet: 1.0 +/- 2.0-1.0 +/- 1.0 mm slab: width: +/- 2.0 mm thickness: +/- 3.0 mm

The length tolerance: +/- 200 mm

Section diagonal tolerance: 3.5-8.0 MM

Billet section size protrusions requirements: < 1242 mm, do not allow; > = 1242 mm, < = 2 mm 1242 mm, < = 3 mm

Beheading (shear) extension deformation: < 1242 mm billet: no control; The slab: < = 15 mm

Surface tilt: no more than billet section 0.1

Bending: every 1 m length is not more than 10 mm.

 

Notes:

1, The theoretical weights in the list, base on the density of 7.85 g/cm3.

2, Formula for theoretical weight of Square bar: (length of a side)2 * 0.00785

3, The numbers with mean that they are not regular or we don’t offer them.

-Regular length of Square Bar:

Steel

Length of a side (mm)

Length of steel (m)

Normal steel

< 25

4~10

> 25

3~9

Steel of high quality

All measure

2~6

Tool steel >75

1~6

Usage/Applications

-The Square Bar is normally used as structure steel.

-Row material for other structure steel like steel angles, channels, I-beams, H-beams, etc…

Packaging & Delivery

-Packing Detail: The products can be packed in bundles by steel wires.

-Marks: We make tag marks and color marks. The tag marks with white background and red company logo will be tied up to each bundle of the products. The information is usually including basic information of products and company and other information requested by customers. As for color marks, we will paint both ends of bundles to make sure that it will be more convenient for customers to distinguish them from other products.

-Delivery Detail: 30~45 working days after receive buyer’s T.T. or L/C.

Transportation

-The products can be delivered by bulk vessel or by container. As for container, products with the length of 6m will be loaded in 20’ container, with 9m or 12m, in 40’ container.

-The maximum quantity of loading of container is 25 tons.

-The products are usually transported to the nearest port from the production place.

 

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Q:What are the common defects in billet? What's the cause?
Five, X ray inspection, porosity, ultrasonic testing:One, 5, magnetic particle inspection, the back of the dent; 6, overheating and over burning: 1, penetrant inspection;Four. 2. The size of the weld does not meet the requirements and slag inclusion; 3 high-energy X-ray inspection, lamellar tearing and R ray flaw detection; 2;Five;Two: 1, arc crater;Methods for inspection of weld defects;
Q:Reasons and treatment methods of billet stripping in continuous casting
The main reason for the stripping is that the slab is not uniformly cooled in the mold, which results in uneven thickness of the shell, which results in uneven shrinkage, which leads to the unevenness of the billet. If the mould outlet, two cold area is uneven, the shell support is not full, it will make breaking-off intensified;
Q:Continuous casting billet has slag inclusion and air hole
1. Whether the injection hole before the casting is replaced with the protective slag instead of the special drainage sand, and whether the drain sand is dry or not2, whether it is too early to start adding protective slag is to protect the slag whether it is dry or not3, the opening of the mold to maintain the steel surface uniform and stable, rising to the required height, the key is fluctuation.
Q:Billet rolling temperature
Typically, the temperature decreases gradually during rolling (a small amount of high speed wire has a temperature rise process), usually above 750 degrees, and can reach 600 degrees or even lower
Q:What is Alfa carbon? What is beta carbon?
Alfa is directly connected with the functional groups of carbon atoms of carbon atoms, such as CH3CH2COOH CH2 in which methylene propionate is Alfa carbon carbon carbon atom is the beta carbon atom is directly connected with the functional groups and the connection of the carbon (around Kazakhstan), such as the CH3CH2COOH CH3 propionic acid methyl carbon is the beta carbon
Q:How many tons of billets does it take to produce a ton of thread steel?
The yield was increased, consumption will be reduced.
Q:The reason for the blowhole in the billet to be pulled out by the continuous casting machine is 100
1: new furnace, new furnace lining contains more gas2: raw material no clean, no coincidence?3: melt protection? Temperature is not high, no refining and static?4:3 point, mold and traction to look for defects, mold cooling effect - water temperature - traction line and horizontal - traction process5: stop and pull
Q:What about carbon 4 and carbon 5?
Carbon four is butane, which is made up of four carbon, divided into n-butane and isobutane.Carbon five is pentane, composed of five carbon, divided into pentane, isoamyl, and new pentane.A product of petroleum refining, usually consisting of alkanes with a greater number of carbon atoms.
Q:What does the billet of the steel plant refer to?
When rolling the long material, the square billet is poured, the rolled plate is cast, the rolling pipe is cast into round billet, and the rolled narrow strip steel is poured into the rectangular billet, etc..
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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