Hot Sale GB Standard Round Bar Carbon Steel Round Bar

Short Description:

GB Standard Round Bar is a type of metal rod made from carbon steel, which is an alloy of iron and carbon. Carbon steel bars are available in different shapes and sizes, such as round, square, flat, and hexagonal, and they are commonly used in construction, manufacturing, and industrial applications. These bars have high tensile strength and are known for their durability and resistance to corrosion, making them suitable for various structural and mechanical purposes

Model Number: Q235,Q345,10#-70#,SAE1010-1080,etc.

Technique: Hot Rolled

Standard: GB

Certification: ISO

Delivery Term: FOB CIF CFR EX-W

Contact Us: +86 15320016383

Email: chinaroyalsteel@163.com

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Product Detail

Product Tags

The details of a carbon structure steel round bar typically include the dimensions, such as diameter and length, as well as the specific grade or specification, which indicates the composition and properties of the steel. Common grades of carbon steel round bars include AISI 1018, 1045, and 1144, among others. These bars are often used in applications such as machining, manufacturing, and construction due to their strength, machinability, and weldability. Additionally, the surface finish, tolerances, and any applicable industry standards (such as ASTM or SAE) may also be specified for carbon steel round bars.

PRODUCT PRODUCTION PROCESS

1. Preparation of raw materials
1. Material selection: Choose high-quality steel with good quality, no oxide scale, no cracks or cracks, and few impurities as raw materials.
2. Cutting: Cut the raw materials into appropriate lengths and diameters, ensuring that the cutting surface is bright and crack-free.
2. Refining
1. Impurity removal: Use magnetic separator or manual sorting to remove impurities in raw materials.
2. Preheating: heating the raw materials to a certain temperature in the furnace for subsequent operations.
3. Refining: Put the preheated raw materials into a refining furnace for high-temperature treatment to remove harmful substances such as carbon, sulfur, and phosphorus in the raw materials, and adjust the carbon content.
3. Processing and forming
1. Preforming: Processing the refined raw materials into bars of a certain shape.
2. Heat treatment: Heat the preformed rod to a certain temperature and keep it for a period of time to adjust the mechanical properties of the rod.
3. Cooling: Place the heated rod in the air to cool naturally.
4. Finishing: The steel round bar is further subjected to fine processing such as wire cutting and polishing to achieve higher precision and surface quality.

PRODUCT SIZE

Product Name:	steel bar
Diameter	2~500mm
Length	3000~6000mm
Type	Round/Square/Hexagonal/Angle/Flat Bar	Round/Square/Hexagonal/Angle/Flat Bar
Surface Treatment:	Clean, blasting and painting according to customer requirement
Thickness tolerance：	±0.1mm
Material：	20#- 35# 45# 50#, 16Mn-50Mn 30Mn2-50Mn2 20Cr, 20Cr, 40Cr 20CrMnTi 20CrMo;15CrMo；30CrMo 35CrMo 42CrMo; 42CrMo4 60Si2mn 65mn 27SiMn;20Mn; 40Mn2; 50Mn; 1cr13 2cr13 3cr13 -4Cr13;etc. Q195; Q235(A,B,C,D R); Q345(B,C,D R); Q345QC Q345QD SPCC SPCD SPCD SPCE ST37 ST12 ST15 DC01 DC02 DC03 DC04 DC05 DC06
Application：	ApplicationIt is widely used in small tools, small components, iron wire, siderosphere, pull rod, ferrule, weld assembly, structural metal, connecting rod, lifting hook, bolt, nut, spindle, mandrel, axle, chain wheel, gear, car coupler.
MOQ:	25tons.We also can accept sample order.
Shipment time:	Within 15-20 workdays after receiving deposit or TT and L/C
Export packing:	Waterproof paper, and steel strip packed.Standard Export Seaworthy Package.Suit for all kinds of transport,or as required
Capacity:	250,000 tons/year
Usage	It is widely used in Shipping, Petrochemical industry. Machine industry, Medicine, Electric Power, Energy, Building Decoration, Nuclear Power, Aviation and Spaceflight, Seawater equipment, Chemistry, Coloring Matter, Paper-making, Oxalic Acid, Fertilizer, Coastal areas, Facility, Rope, Screw, Nut etc.

GB Standard Round Bar

Specifications: Q235,Q355,20,45,40Gr

Standard: GB/T 1499.2-2007

GB/T 1499.3-2010

Size:6-12M or customer's requirement

Round steel rod properties table
diameter mm	Section cm²	unit mass kg/m	diameter mm	Section cm²	unit mass kg/m
6	0.283	0.222	(45)	15.9	12.5
7	0.385	0.302	46	16.6	13.0
8	0.503	0.395	48	18.1	14.2
9	0.636	0.499	50	19.6	15.4
10	0.785	0.617	(52)	21.2	16.7
11	0.950	0.746	55	23.8	18.7
12	1.13	0.888	56	24.6	19.3
13	1.33	1.04	60	28.3	22.2
(14)	1.54	1.21	64	32.2	25.3
16	2.01	1.58	65	33.2	26.0
(18)	2.55	2.00	(68)	36.3	28.5
19	2.84	2.23	70	38.5	30.2
20	3.14	2.47	75	44.2	34.7
22	3.80	2.98	80	50.3	39.5
24	4.52	3.55	85	56.8	44.6
25	4.91	3.85	90	63.6	49.9
(27)	5.73	4.50	95	70.9	55.6
28	6.16	4.83	100	78.5	61.7
30	7.07	5.55	110	95.0	74.6
32	8.04	6.31	120	113	88.7
(33)	8.55	6.71	130	133	104
36	10.2	7.99	140	154	121
38	11.3	8.90	150	177	139
(39)	11.9	9.38	160	201	158
42	13.9	10.9	180	255	200
			200	314	247

FEATURES

Hot rolled steel round bars are typically produced through a hot rolling process, where steel is heated above its recrystallization temperature and then passed through a series of rollers to achieve the desired shape. The main features of hot rolled steel round bars include:

Strength: Hot rolled steel round bars are known for their strength and toughness, making them suitable for a wide range of industrial applications.

Ductility: This type of steel is often characterized by its ductility, allowing it to be easily shaped and formed into various products.

Surface Finish: Hot rolled steel round bars may have a rough and scaled surface due to the nature of the hot rolling process. However, this surface can be further processed to achieve smoother finishes if required.

Versatility: Hot rolled steel round bars are used in various industries such as construction, manufacturing, and automotive due to their versatility and structural integrity.

Availability: These round bars are readily available in different sizes and grades to suit specific application requirements.

APPLICATION

Mild steel round bars have a wide range of applications due to their versatile properties. Some common applications include:

Construction: Mild steel round bars are used in construction for reinforcing concrete structures such as buildings, bridges, and roads.

Manufacturing: They are used in the manufacturing of machinery, equipment, and components due to their ease of machinability and durability.

Automotive: Mild steel round bars are used in the manufacturing of automotive components, such as axles, shafts, and various structural parts.

Agricultural Equipment: They are used in the fabrication of agricultural machinery and equipment due to their strength and formability.

General Fabrication: Mild steel round bars are widely used in general fabrication applications, including the production of gates, fences, frames, and other structural elements.

DIY Projects: They are often used in do-it-yourself projects for creating furniture, decorative items, and small structures due to their availability and ease of handling.

Tool Making: Mild steel round bars are also used in the fabrication of hand tools, machine tools, and industrial equipment.

PACKAGING AND SHIPPING

Packaging:

Steel rod stack firmly: steel rod stack neatly, stable, to ensure that steel rod alignment, to prevent steel rod instability. Use straps or bindings to secure the stack and prevent movement during transportation.

Use protective packaging: Wrap steel rods in a moisture-proof material, such as plastic or waterproof paper, to protect them from water, humidity and other environmental factors. This will help prevent rust and corrosion.

Shipping:

Choose the right mode of transport: According to the number and weight of steel rods, choose the right mode of transport, such as flatbed trucks, containers, ships, etc. Consider factors such as distance, time, cost, and traffic regulations.

Use appropriate lifting equipment: When loading and unloading steel rods, appropriate lifting equipment should be used, such as cranes, forklifts, loaders, etc. Ensure that the equipment used has sufficient capacity to safely handle the weight of the steel rod.

Fixed load: Use straps, braces or other suitable methods to properly secure the packaged steel rods to the transport vehicle to prevent movement, sliding or falling during transport.

COMPANY STRENGTH

Made in China, first-class service, cutting-edge quality, world-renowned
1. Scale effect: Our company has a large supply chain and a large steel factory, achieving scale effects in transportation and procurement, and becoming a steel company that integrates production and services
2. Product diversity: Product diversity, any steel you want can be purchased from us, mainly engaged in steel structures, steel rails, steel sheet piles, photovoltaic brackets, channel steel, silicon steel coils and other products, which makes it more flexible Choose the desired product type to meet different needs.
3. Stable supply: Having a more stable production line and supply chain can provide more reliable supply. This is especially important for buyers who require large quantities of steel.
4. Brand influence: Have higher brand influence and larger market
5. Service: A large steel company that integrates customization, transportation and production
6. Price competitiveness: reasonable price

*Send the email to chinaroyalsteel@163.com to get a quotation for your projects

CUSTOMERS VISIT

FAQ

1.How can I get a quotation from you ?
You can leave us message, and we will reply every message in time.

2.Will you delivery the goods on time?
Yes,we promise to provide best quality products and delivery on time. Honesty is our company's tenet.

3.Can I get samples before order ?
Yes, of course. Usually our samples are free,we can produce by your samples or technical drawings.

4.What is your payment terms?
Our usual payment term is 30% deposit, and rest against B/L. EXW, FOB,CFR, CIF.

5.Do you accept the third party inspection?
Yes absolutely we accept.

6.How do we trust your company?
We specialise in steel business for years as golden supplier, headquarter locates in Tianjin province, welcome to investigate in any ways, by all means.

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carbon steel round bar