Hot Rolled Round Steel Bars with Cr A36, Q235, SS400

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Min Order Qty:
25 m.t.
Supply Capability:
200000 m.t./month

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Item specifice:

Standard: AISI,JIS,GB,ASTM Technique: Hot Rolled Shape: Round
Surface Treatment: Black Steel Grade: Q195,Q235,SS400-SS490 Certification: ISO,SGS
Thickness: 2 Length: 6m Net Weight: 20000

Product Description:

Product Description:

Hot Rolled Round Steel Bars with Cr A36, Q235, SS400 is used for manufacturing ball, roller bearing steel and rings. Bearing in work is under great pressure and friction, so have high demands bearing steel and hardness and resistance, and high elastic limit.

Bearing steels are used for ball and roller bearing applications and are comprised of low carbon steels and high carbon through harden able steel.

For example, bearing ring, steel rolling mill, machinery, 100Cr6 bearing steel ball is widely used in high-speed and low-noise bearing, bicycle, motorcycle, automobile, bags electronically.


Product Applications:

Hot Rolled Round Steel Bars with Cr A36, Q235, SS400 are ideal for structural applications and are widely used in the construction of buildings and bridges, and the manufacturing, petrochemical, and transportation industries.

1. Steel round bar products is used in construction and a large number of architectural and engineering structures. And it can be used in production of handrail, windows, machinery, telecom and curtain wall.

2. It can be used in the fields like metal mines, cement plants, water coal slurry, power stations and chemical industry.

3. Besides, we can supply some especial material steel round bar that can be used for main shaft of steamer, hummer shank, with big section and supper force.

4. Recommended watchcase factory, screw factory and other cold stamping products industry use.


Product Advantages:

OKorder's Hot Rolled Round Steel Bars with Cr A36, Q235, SS400 are durable, strong, and resist corrosion.

1. The steel in which the main interstitial alloying constituent is carbon in the range of 0.12–2.0%.

2. As the carbon percentage content rises, steel has the ability to become harder and stronger through heat treating; however it becomes less ductile.

3. Regardless of the heat treatment, higher carbon content reduces weld ability. In carbon steels, the higher carbon content lowers the melting point.

4. Quality should be in conformity with the specification of the manufacturer. Quantity and packing conditions should be in conformity with the term in the contract.


Main Product Features:

·         Premium quality

·         Prompt delivery & seaworthy packing (30 days after receiving deposit)

·         Corrosion resistance

·         Can be recycled and reused

·         Mill test certification

·         Professional Service

·         Competitive pricing


Specifications of Hot Rolled Round Steel Bars with Cr A36, Q235, SS400

1. Grade: Q235, A36, SS400, S235JR

2. Feature: Unbreakable, grinding resistant and high impact value

3. Diameter: 8mm-150mm

4. Performance: Mainly for civil construction

5. Characteristics: Even hardness, no deformation, no breaking, no mal-roundness

6. Technique: Hot rolled

7. Mass: Mass (kg/m) = Diameter (mm) × Diameter (mm) × 0.00617

Packaging & Delivery of Hot Rolled Round Steel Bars with Cr A36, Q235, SS400

Packaging Detail: All goods are packed in bundle with steel strips and shipped by break bulk vessel or container (depend on target market and different ports)

Delivery Detail: 45 days

Trade terms: FOB, CFR, CIF

MOQ: 25 tons per specification; we can negotiate the quantity if the specification is normal or we have stock of one specification.

Weight: The price invoicing on theoretical weight basis or actual weight basis depends on customer’s request.

Shipment: The shipment of bulk break or container is depends on customer’s request and the situation of the port of destination.

Documents given: Full set of original clean on board bill of lading; Original signed commercial invoice; Original packing list; Policy of insurance; Certificate of origin and what the target market needs. 

Production Flow of Hot Rolled Round Steel Bars with Cr A36, Q235, SS400

Material prepare (billet) — heat up — rough rolling — precision rolling — cooling  — packing — storage and transportation


Q1: The products are invoicing on theoritical weight or on actual weight? 

A1: We can do it in both manners, according to the customers' request.

Q2: What is the normal tolerance of Hot Rolled Round Steel Bars with Cr A36, Q235, SS400?

A2: Normally 3%-5%, but we can also produce the goods according to the customers' requests. 

Q3: How soon can we receive the product after purchase?

A3: Within three days of placing an order, we will begin production. The specific shipping date is dependent upon international and government factors, but is typically 7 to 10 workdays.

Hot Rolled Round Steel Bars with Cr A36, Q235, SS400

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Q:How to hollow square steel welding
Hollow square steel thin wall, should use special fixture precision counterparts, and retain the appropriate gap, in order to ensure the welding quality.
Q:Round and square steel which is strong
Of course, the round steel is stronger. There was not because round steel is not convenient, a bar where rolling will affect the construction safety and progress. Log and wood with the same size and length to try to lift the increasing weight of the timber is certainly the first break. The cylinder is the strongest and most durable.
Q:Why is a point of penetration of 2 square steel welding
With 2.5 of the electrode try, I solder 1 will do, hand gestures as soon as possible, it is not so easy to point out the hole, if the conditions can choose carbon dioxide protection welding, but the cost of welding should be high
Q:The steel structure material can do?
The steel can be used as structural materials to use, but not commonly used, are generally only used in the special requirements of the situation
Q:The difference between galvanized square and galvanized steel
The galvanized pipe with square tubes is galvanized steel strip processing, forming, anti-corrosion time, there is no hot galvanizing time, hot galvanized is processedThe black tube. Galvanized in galvanized square tube factory. After 1000 degrees of high temperature, the general wall thickness is relatively thin, can not do hot-dip galvanizing.
Q:What is the use of square steel keel or welding steel canopy
What material is most suitable for the construction of the canopySelect the canopy material, is the most important part of the awning construction, suitable materials, not only save money, and effort, but also worry. The awning material is usually divided into: "sunshine in canopy, canvas canopy, laminated glass awning, canopy tile".
Q:Building with steel or steel plate?
It is recommended to use channel No. 12, and the span of three meters is not big, so the problem of vibration will not occur! Square steel tubes are not recommended for load-bearing structures. I'm from the steel installation department.It is suggested that the upper channel, the red plate, and the wood. It's more comfortable to use.
Q:You need to light steel keel wall square steel
Light steel keel, plasterboard partitionLightweight steel keel wall materials are 50, 75, 100, 150 and so on. The wall can be filled with insulating materials - insulation materials (such as rock wool board, rock wool blanket, foam board), can play a very good insulation effect.
Q:4 x6 1.5 square meters thick, how much money
1, the steel prices generally calculated in tons. To see you say the steel is hot dip galvanized or black material.2, hot galvanized general 4500/ tons,3, black wood generally in 3800/ tons.That is 4.5 yuan /kg and 3.8 yuan /kg. Forget it. You say this kind of steel is 2.355kg per meter,
Q:As for steel structure steel, how appropriate
The size of the material is strongly related to the load on your floor, and the roof material and column size are also related to your span and the local Blizzard loads. You can choose the size of the material according to the local conditions.

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