TK 440 superior hot rolled Carbon Steel Billets Square Billets

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China main port
Payment Terms:
TT OR LC
Min Order Qty:
25 m.t.
Supply Capability:
1000000 m.t./month

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Product Description

  TK 440 superior hot rolled Carbon Steel Billets Square Billets

Size:30*30mm-150*150mm  

Standard: GB,BS,ASTM    

Grade: Q195/215/235/345/45#/3SP/5SP,ect    

Application: Carbon structural steel, alloy structural steel, gear steel, spring steel,     

bearing steel, etc.  

Packaging Detail: exporting standard packing in mill or as request    

Delivery Detail: within 15-30 days after receiving deposits or original LC

     

The Billets produced by the company can be broadly divided into three main types i.e.    

1.      M.S. Billets    

2.      CRS Billets     

3.      Special Alloy Billets   

M.S. Billets are used for rolling of TMT Re-Bars of Fe415 and Fe500 Grade and various other structural steel products.     

CRS Billets are used for rolling of CRS TMT Re-Bars.    

Special Alloy Billets are used for rolling of any special grade TMT Re-Bars like Earthquake resistant TMT Re-Bars and for special grade structural steel products. 

 

 

Square steel billet

 

1.Chemical Analysis

Grade

Carbon(%)

Manganese(%)

Silicon(%)

A

0.14~0.22

0.30~0.65

Max0.30

B

0.12~0.20

0.37~0.67

Max0.30

C

Max0.18

0.35~0.80

Max0.30

D

Max0.17

0.35~0.80

Max0.35

2.Mechnical Properties

Tensile Strength(σb/Mpa)

Elongation(δ5/%)

375---500

≥26(a≤16mm)

3.basic information

length

Spectfication(mm)

Material quality

Executive standard

6m

120*120

Q235

GB700-88

4.Trade information

Price terms

Payment terms

Delivery time

Packing

FOB/ CIF

T/T, L/C

Within 30 days

bundles

TK 440 superior hot rolled Carbon Steel Billets Square Billets


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Q:How do steel billets come out?
Three, steel rolling:Rolling steel or continuous casting billet into various steels by rolling mill
Q:The form of carbon in carbon steels
The solubility of carbon content when the iron carbon alloy than in the iron when the excess carbon can be in the form of carbide iron or elemental state (graphite) in alloy, which can form a series of carbide, Fe3C (cementite, 6.69%C) is a metastable phase, it is a compound complex structure gap. Graphite is a stable phase of iron carbon alloy with simple six - party structure. Fe3C has the potential to break down into iron and graphite stable phases, but the process is extremely slow at room temperature.
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:What is the difference between carbon three plants and carbon four plants?
The mesophyll cells of carbon three plants are more dispersed, and there are no chloroplasts in bundle sheath cells. Photosynthesis is only carbon three cycle, and the utilization rate of carbon dioxide is low. It usually lives in temperate zone.Four carbon plant mesophyll cells arranged regularly, the formation of two circles of the "ring" and bundle sheath cells, bundle sheath cells have no chloroplast grana, photosynthesis has three carbon cycle and carbon cycle four, higher utilization rate of carbon dioxide, the general life in tropical and subtropical regions.The initial product of CO2 assimilation is not photosynthetic carbon cycle in three carbon compounds 3- phosphoglycerate, but four carbon compounds malic acid or aspartic acid plant.
Q:Which is good for pure iron billet?
Stainless steel, pure iron, military pure iron and industrial pure iron products have to choose the enterprises of good quality and excellent after-sale service. These problems must be taken into consideration in the process of purchasing.
Q:Charcoal classification
Hard charcoal. By hardwood such as Fagaceae Quercus, Castanopsis trees, secondary birch and etc..Broad-leaved charcoal. Charcoal made from a mixture of hard and soft hardwood.Pine charcoal. Carbon fired from pine or other needle wood. In addition to bamboo and bamboo charcoal burning with shells, stones (coconut shell, peach stone charcoal etc.) wood raw material firing. Charcoal collected from household stoves in the cell known as carbon. If the charcoal is crushed and mixed with proper adhesive, and then pressed, formed and roasted, the deposit is made. According to the burning process of silica and carbon black.
Q:Does anyone know how much it costs to refine a ton of steel? What are the expenses involved?
now the steel profits are not as good as before, a ton of net profit is about 100 yuan
Q:The reason for the blowhole in the billet to be pulled out by the continuous casting machine is 100
Production: 1 steel and 2 steel alloy or damp; for ladle lining refractory and no baking; otherwise the whole section are 3 billet bubble deposit if the situation is steel quality problems and the main problems of alloy billet; if the bubble is mainly between now and the relationship between process equipment (including continuous casting are clearly some problems of continuous casting machine the parameters of a)
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:How does billet caster pull out billet cracking?
There are many kinds of cracks. Which one are you talking about? It is related to the water radian of the crystallizer.

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