Hot Rolled Steel Sheet for Shipbuilding and pipe

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Loading Port:
Tianjin
Payment Terms:
TT OR LC
Min Order Qty:
500 m.t.
Supply Capability:
5000 m.t./month

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Item specifice:

Standard: ASTM,GB,JIS Technique: Hot Rolled Shape: strip
Surface Treatment: N Steel Grade: Q195,Q215,Q235,HRB400,SS400-SS490 Certification: ISO,SGS
Thickness: 6-700 Width: 50-2000 Length: 4000-18000
Net Weight: -

Product Description:

1. Product Description

The Billets as raw materials, through furnace heating, high-pressure water to reduce the phosphorus, then entering the roughing mill, cutting head, end, and then put into the finishing mill, cutting the edge, after the times of straightening, leveling and other finishing line treatment, and then cutting board or coil becomes the hot rolled steel sheet and hot rolled steel coil.

2.  Main Features 

Characteristics of hot rolled steel hot-rolled steel is a high temperature heating and rolled steel, hot rolled product has high strength, good toughness, easy to processing molding and good weldability and other excellent properties, which are widely used in ship, automobile, Bridges, buildings, machinery, pressure vessels and other manufacturing industries.


3. Excellent Product Image

Hot Rolled Steel Sheet for Shipbuilding and pipe

Hot Rolled Steel Sheet for Shipbuilding and pipe

Hot Rolled Steel Sheet for Shipbuilding and pipe

4. Application

Refers to the production according to the requirements of classification society rules for the construction of hot rolled steel plate used in the manufacture of hull structure.

Hot Rolled Steel Sheet for Shipbuilding and pipe

Because of poor working conditions, hull shell to chemical corrosion and electrochemical corrosion of sea water and sea creatures, microbial corrosion; Hull bear larger impact waves and alternating load; Ship shape the processing method of complex factors, so strict in hull structure steel. First good toughness is one of the most critical requirements, in addition, require high strength, good corrosion resistance, weldability, processing forming performance and surface quality. For assuring quality and ensure there is enough toughness and requirements of the chemical composition of the Mn/C above 2.5, also has strict requirements for carbon equivalent, and recognized by the survey department of steel production. Hull with structural steel in accordance with the minimum yield point strength level is divided into: general strength structural steel and high strength structural steel. General strength and high strength steel with hull structural steel points two kinds, general strength steel according to quality points A, B, D and E four grades; Strength of high strength steel and two levels and three quality grades; AH32, DH32, EH32, AH36, DH36, EH36.

China classification society standard the general strength of structural steel is divided into: A, B, D, E four quality levels (i.e., CCSA CCSB, CCSC, continental scientific drilling (CCSD); China classification society standard level of strength of high strength structural steel for three, four quality grade.

5. FAQ

1.Q: Do you have attended any exhibition?

A: We almost go to Canton Fair and Overseas Exhibitions every year.

2. Q: How to guarantee the quality of the products

A: We have established the international advanced quality management systemevery link from raw material to final product we have strict quality testWe resolutely put an end to unqualified products flowing into the market. At the same time, we will provide necessary follow-up service assurance.

3. Q: How long can we receive the product after purchase?

A: Usually within thirty working days after receiving buyer’s advance payment or LC. We will arrange the factory manufacturing as soon as possible. The cargo readiness usually takes 15-25 days, but the shipment will depend on the vessel situation.

 

 

Why choose us?

Pre-sale Service

1. Sample can be offered with sample charge and courier fee by buyer's side.

2. We have full stock,and can deliver within short time.Many styles for your choices.

3. OEM and ODM order are accepted, Any kind of logo printing or design are available.

4. Good Quality + Factory Price + Quick Response + Reliable Service, is what we are trying best to offer you

5. All of our products are produce by our professional workman and we have our high-work-effect foreign trust-worthy sales team. 

6. We have 18 years' experience of design, manufacture and sell lingerie, we cherish every order from our honor.

 

After you choose

1. Count the most efficient shipping cost and make invoice to you at once.

2. Check quality again, then send out to you at 1-2 working day after your payment.

3. Email you the tracking no, and help to chase the parcels until it arrive you.


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Q:What is the hardness of cold rolled steel strip?
Generally, the Rockwell hardness of annealed carbon steel is 55+-3, and the hardness of annealed cold rolled strip is above 80
Q:What is cold rolled strip and hot rolled strip? Why is it called strip steel?
When the cold rolled steel strip is processed and shaped, the raw material is made at the normal temperature, so the mechanical properties of the steel strip are crisp and hard and have good elasticity.
Q:Hot rolled strip, the theory of the thinnest, how thin rolling, why not rolling too thin, is the material or the reasons for plate shape?
Thinning is related to width. But after a certain width, the amount of thinning has little to do with the width. The theory of hot rolling can be rolled to 0.8mm, and in practice, the 1.2mm is virtually useless.
Q:What is the difference between steel strip and strip steel?
The steel strip is the product which the processing enterprise cuts the strip steel according to the specific machine size to cut into a certain length, the width, generally assumes the enclosed circle shape. For example, steel conveyor belts, such as furniture or wood processing enterprises, "band saw" saw blade, but also steel band.
Q:Pickling process of cold rolled strip
In addition to the task of removing the iron oxide scale on the strip surface, the continuous pickling line still has several functions:(1) trim the side of the strip with a disc shear.(2) regulating the quality of rolled steel, according to the production requirements of large volume of hot-rolled steel will be divided into small volumes, or several small steel coils merging into a large, in order to improve the production of cold rolling mill.(3) check and eliminate the harmful surface defects of strip steel after each process.(4) apply a layer of oil on the surface of the pickled steel strip, which can prevent rust and lubricate.
Q:1 can thick galvanized steel square pipe burn welding?
Welding is commonly known as welding rod arc. A welding operation that uses electrodes to weld metal parts at high temperatures by arcing.
Q:Reasons for black side of hot strip galvanizing
Solution: contains too much impurity in the bath can use saline and Potassium Permanganate rushed ang impurity, or adding zinc chloride solution to current economic treatment; the strict monitoring of the production process to prevent the emergence of this phenomenon; low content of zinc chloride can be solved by adding zinc chloride.
Q:Hot rolled strip and hot rolled strip are also sealing plates? What's their function?
First of all, there are some hot rolled strip, the main role is to prevent roll cooling water flow to the workpiece, affecting the crown of the strip and shape control.
Q:What are the sectors in which galvanized steel strips can be used?
Steel sheet galvanized steel strip is a kind of narrow and long steel plate produced by various steel rolling mills in order to meet the needs of industrial production of various metal or mechanical products in different industrial sectors. Strip steel, also called steel belt, is slightly different in length according to the size of each roll. The strip is supplied in general, and has the advantages of high dimensional accuracy, good surface quality, easy processing and material saving.
Q:65 what is the hardness of the best heat treatment of manganese steel strip?
65, the optimum heat treatment hardness of manganese strip depends on the application and heat treatment method;1, 65Mn strip at 850 degrees Celsius, quenching oil +180 degrees, low temperature tempering 6 hours, hardness can reach HRC56 or so.2, if it is 400 degrees Celsius, tempering 4 hours, its hardness is generally around HRC39.

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