Steel Round Rod Bar

321 Stainless Steel Round Bars Rod.Round steel refers to a solid long strips of steel with a circular cross-section. The material of round steel is generally made of first-grade steel, which has very good plasticity. It is used in a large amount in industry and is used less in construction projects. The specifications of round steel are mainly expressed in millimeters of diameter, for example, "50" means a round steel with a diameter of 50 mm.The round steel is classified according to the production process: it is divided into three types: hot rolling, forging and cold drawing. The pressure processing method in which the cross section of the material is reduced and the length is increased, which is the most common production method for producing steel, is mainly used to produce profiles, plates and pipes. Divided into hot-rolled and cold-rolled. The size of hot rolled round bar is 5.5-250 mm. Among them: small round bars of 5.5-25 mm are mostly supplied in bundles of straight strips, which are often used as steel bars, bolts and various mechanical parts in construction projects; round bars larger than 25 mm are mainly used for the manufacture of mechanical parts or seamless steel pipe raw materials .

Round steel mainly includes round steel stainless steel and round steel carbon steel:
1. According to the process, round steel is divided into three types: hot rolling, forging and cold drawing. The specifications of hot-rolled round bars are 5.5-250 mm, of which, the small round bars of 5.5-25 mm are mostly supplied in bundles of straight strips, which are often used as steel bars, bolts and various mechanical parts; round bars larger than 25 mm are mainly For the manufacture of mechanical parts, tube blanks for seamless steel tubes, etc.
2. According to chemical composition, round steel carbon steel (that is, in terms of carbon content) can be divided into low carbon steel, medium carbon steel and high carbon steel.
3. According to the quality of steel, round steel can be divided into ordinary carbon steel and high-quality carbon steel.
4. According to the purpose, round steel can be divided into carbon structural steel and carbon tool steel.

The round steel is classified according to the production process: it is divided into three types: hot rolling, forging and cold drawing.
Hot rolled round steel is a pressure processing method in which the metal billet is passed through a pair of rotating rolls (various shapes), and the material section is reduced and the length is increased due to the compression forming and rolling of the rolls. This is the most commonly used production method for steel production. It is mainly used to produce profiles, plates and pipes.
Forged round steel: refers to round steel that can be shaped by forging. In general, the quality of the round steel produced by the free forging rolling method is better under the conditions of the same deformation ratio, because forging to achieve the same deformation amount of rolling requires repeated forging to elongate (forging is free deformation and rolling It is constrained deformation), so the same billet produces the same finished round steel forging is equivalent to an increase in the deformation ratio of rolling by more than 50%. In addition, in general, forging is the overall deformation of the steel from the surface to the interior and the rolling surface is deformed first, so The internal structure, segregation degree, metal flow line, etc. of the round bars produced by the two are completely different, and the quality of forged round bars is generally better than that of rolled round bars. Therefore, key components such as crane hook heads must be forged parts.
Cold-drawn round steel: also known as cold-drawn round steel, cold-drawn element steel, cold-drawn round steel, and smooth round steel, it is a kind of cold-drawn section steel. Whether it is cold-drawn round steel or round steel, its shape is round, but the surface of cold-drawn round steel is very smooth, its dimensional accuracy is high, and its mechanical properties are high. Because of its high dimensional accuracy, it can be used directly without processing.

Round steel has broad application prospects and is widely used in hardware, construction, automobiles, shipbuilding, petrochemicals, machinery, medicine, food, electricity, energy, aerospace, etc., building decoration. The most extensive processing of ordinary mechanical parts, general rod steel parts, CD rods, bolts, nuts.

Q: Are you a manufacturer?
A: Yes , we are a Steel Round Bars manufacturer, We have own factory, which is located in Shandong,China. We have a leading power in producing and exporting various steel products. We promise that we are what you are looking for. 
Q:Can we visit your factory ?
A:Warmly welcome once we have your schedule we will pick you up .
Q: Do you have quality control?
A: Yes, we can accept BV, SGS third inspection .
Q: Can you arrange the shipment?
A: Sure, we have permanent freight forwarder who can gain the best price from most ship company and offer professional service.
Q: How long is your delivery time?
A: Generally it is 7-14 days if the goods are in stock. or it is 25-35 days if the goods are not in stock, it is according to quantity.
Q:How can we get the offer?
A:Please offer the specification of the product,such as material,size,shape,etc.So we can give the best offer.
Q:Can we get the some samples?Any charges?
A:Yes,you can get available samples in our stock.Free for real samples,but customers need to pay the freight cost.
Q: How do you make our business long-term and good relationship ?
A: 1.We keep good quality and competitive price to ensure our customers' benefit.
2.We respect every customer as our friend and we sincerely do business and make friends with them, no matter where they come from.