AISI 4140 Round Bar Mild Carbon Dia 50mm Round Steel
We are specialized in the production and processing of metal raw material, such as carbon steel.
Round steel refers to long solid steel with circular section. Its specification is expressed in diameter.
Round steel is divided into hot rolling, forging and cold drawing. The specification of hot rolled round steel is 5.5-250 mm. Among them, 5.5-25 mm small round steel is mostly supplied in bundles of straight bars, which is often used as reinforcement, bolts and various mechanical parts; Round steel larger than 25 mm is mainly used for manufacturing mechanical parts, pipe blank of seamless steel pipe, etc. Difference between round steel and other reinforcement:
1. The appearance of round steel is different. The appearance of round steel is smooth and round, without lines and ribs, and the appearance of other reinforcement surfaces is engraved or ribbed.
2. The composition is different. Round steel belongs to ordinary low carbon steel, and other reinforcement is mostly alloy steel.
3. The strength is different. The strength of round steel is low and that of other steels is high, but the plasticity of round steel is stronger than that of other rebars.
Product Description
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Standard
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DIN BS GB SAE AISI JIS ASTM EN
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Diameter
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5mm-800mm
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Length
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4,6, 8, 12 m
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Surface
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Polished,Black
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Delivery Condition
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Heat Treatment ,Cold Drawn
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Advantages
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Dia< 10.00 mm, cold drawn, on request also ground;
Dia > 10.00 mm, cold drawn, on request also ground;
Tighter tolerances on request
Out of roundness standard: ½ of diameter tolerance
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Finish Line
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Straightening machines
Milling and chamfering devices
Surface control (Circograph, Circoflux)
Ultrasonic control device
Antimixing control - spectrotest devices
Packaging, marking
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Mechanical Property
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Delivery status: Tensile strength (Rm): 570 -820 MPa, size depending
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Bar Processing
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Heat treatment: soft annealing, normalising, isothermal, spheroidising and stress relieving treatments, quenching and tempering
Peeling
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Application
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* Automatic lathe processing, metal stamping parts processing;
* Electronic industry, optical fiber connector, optical disc drive, scanner, medical equipment;
* Household appliances, instrumentation industry;
* Office equipment (computers, photocopiers, cameras, fax machines, etc.);
* Watch components, glasses;
* Electronic terminal pin, timer, carburetor;
* Decorations, light ornaments, cars, motorcycles, chains;
* Clean car sweepers and toys;
* Pens, handbag accessories, belt buckles, fishing gear, etc .;
* Studs, screws, nuts, pipe joints, spring seats, etc.
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Product Details
Produce Process
Application
Why Choose Us?
1. More than 10 years Professional steel export service. Have own production line.
2. Advanced CNC machine.
3. Low cost&Quick Delivery&High quality.
4. Integrity, strength and quality of products recognized by the industry.
5. Most of our clients are international, the domestic well-known enterprises.
6. Has a complete scientific quality management system.
7. Can meet any requirements for all kinds of sheet metal processing with advanced equipment.
Packing&Delivery
The round steel will be packed in seaworthy packing,If you have any special requests on this, please let us know advanced. We will refer to your email kindly.
1).20ft GP:5898mm(Length)x2352mm(Width)x2393mm(High)
2).40ft GP:12032mm(Length)x2352mm(Width)x2393mm(High)
3).40ft HC:12032mm(Lengh)x2352mm(Width)x2698mm(High)
FAQ
Q1:Can you send samples?
A:Of course, we can provide customers with free samples and express shipping service to all over of the world.
Q2:What product information do I need to provide?
A:Please kindly provide the grade, width, thickness, surface treatment requirement should you have and quantities you need to purchase.
Q3:It's my first time to import steel products, can you help me with it?
A:Sure,we have agent to arrange the shipment, we will do it together with you.
Q4:What ports of shipment are there?
A:Under normal circumstances, we ship from Shanghai, Tianjin, Qingdao, Ningbo ports, you can specify other ports according to your needs.
Q5:What about product prices information?
A:Prices various according to periodic price changes of raw materials.
Q6:What is your terms of payment ?
A:Payment<=1000USD, 100% in advance. Payment>=1000USD, 30% T/T in advance ,balance before shipment or based on BL copy or LC at sight.
Q7.Do you provide custom made Products service?
A: Yes,if you have your own design , we can produce according to your specification and drawing.
Q8:What are the certifications for your products?
A:We have MTC, if you need the third parties' inspections such as SGS, BV, we also can do it for you.
Q9:How long does your delivery time take?
A:In general, our delivery time is within 7-15 days, and may be longer if the quantity is extremely large or special circumstances occur.
Q10: How many countries you already exported to?
A:We have exported to America, Canada, Brazil, Chile, Colombia, Russia, Ukraine, Thailand, Myanmar, Vietnam, Kenya, Ghana,somalia and other African countries.Our export experience is rich, we familiar with different market demands, can help customers avoid a lot of trouble.
Q11:Can I go to your factory to visit?
A:Of course, we welcome customers from all over the world to visit our factory.
Q12:Does the product have quality inspection before loading?
A:Of course, all our products are strictly tested for quality before packaging, and unqualified products will be destroyed and customers can appoint third parties to inspect the products before loading too.
Q13:How to pack the products?
A: Standard export sea-worthy packaging, the inner layer has a waterproof paper outer layer with iron packaging and is fixed with a fumigation wooden pallet. It can effectively protect products from corrosion and various climate changes during ocean transportation.
Q14:What is your working time?
A:In general, our online service time is Beijing time: 9:00-18:00, after 18:00, we will reply to your inquiry in the coming working day.
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