Reinforcing Deformed Steel Bars in Grade HRB400

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Loading Port:
Tianjin
Payment Terms:
TT OR LC
Min Order Qty:
25 m.t.
Supply Capability:
20000 m.t./month

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Item specifice:

Standard: GB Technique: Hot Rolled Shape: Round
Surface Treatment: Black Steel Grade: HRB400 Thickness: 6-32mm
Length: 12m/pc Net Weight: 2mt/bundle

Product Description:

OKorder is offering high quality Hot Rolled Rebars at great prices with worldwide shipping. Our supplier is a world-class manufacturer of steel, with our products utilized the world over. OKorder annually supplies products to Africa, North American and Asian markets. We provide quotations within 24 hours of receiving an inquiry and guarantee competitive prices.

 

Product Applications:

 

Deformed bar is widely used in buildings, bridges, roads and other engineering construction. Big to highways, railways, bridges, culverts, tunnels, public facilities such as flood control, dam, small to housing construction, beam, column, wall and the foundation of the plate, deformed bar is an integral structure material. With the development of world economy  and the vigorous development of infrastructure construction, real estate, the demand for deformed bar will be larger and larger.

 

Product Advantages:

OKorder's Hot Rolled Rebars are durable, strong, and resist corrosion.

 

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

 

Product Specifications:

Manufacture: Hot rolled

Grade: HRB400 – HRB500

Certificates: ISO, SGS, BV, CIQ

Length: 6m – 12m, as per customer request

Packaging: Export packing, nude packing, bundled

 

Grade

Technical data of the original chemical composition (%)

C

Mn

Si

S

P

V

HRB400

≤0.25

≤1.60

≤0.80

≤0.045

≤0.045

0.04-0.12

Physical capability

Yield Strength (N/cm²)

Tensile Strength (N/cm²)

Elongation (%)

≥400

≥570

≥14

 

Theoretical weight and section area of each diameter as below for your information:

 

Diameter(mm)

Section area (mm²)

Mass(kg/m)

Weight of 12m bar(kg)

6

28.27

0.222

2.664

8

50.27

0.395

4.74

10

78.54

0.617

7.404

12

113.1

0.888

10.656

14

153.9

1.21

14.52

16

201.1

1.58

18.96

18

254.5

2.00

24

20

314.2

2.47

29.64

22

380.1

2.98

35.76

25

490.9

3.85

46.2

28

615.8

4.83

57.96

32

804.2

6.31

75.72

36

1018

7.99

98.88

40

1257

9.87

118.44

50

1964

15.42

185.04

 

FAQ:

Q1: Why buy Materials & Equipment from OKorder.com?

A1: All products offered by OKorder.com are carefully selected from China's most reliable manufacturing enterprises. Through its ISO certifications, OKorder.com adheres to the highest standards and a commitment to supply chain safety and customer satisfaction.

Q2: How do we guarantee the quality of our products?

A2: We have established an advanced quality management system which conducts strict quality tests at every step, from raw materials to the final product. At the same time, we provide extensive follow-up service assurances as required.

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.

Q4:What's your payment terms ?

A4:Mostly,we collect the money by T/T and LC at sight . We also accept time LC at 90/120 days sight.

 

Images

Reinforcing Deformed Steel Bars in Grade HRB400

Deformed bars Hot Rolled with High Quality and Good Price

 


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Q:What is the national standard of thread steel No. 8?
Thread steel specifications: generally including the standard grade (type code), steel nominal diameter, nominal weight (quality), the length of the specifications and the allowable difference between the above indicators. China's standard recommended nominal diameter of 6, 8, 10, 12, 16, 20, 25, 32, 40, 50mm thread steel series.
Q:What specifications should be used for the three - step steel electroslag pressure welding electrode?
Three - step steel electroslag pressure welding electrode with 3mm diameter wire can be.
Q:JL32 is the finish thread heavy bar 32? What's the difference between normal and ordinary? What does the front JL32 mean?
Finishing rolling rebar diameter of JL32-- 32mm, 32 - screw steel hot rolled ribbed steel bars, the difference between the two: 1, ribbed bar is injected directly into the concrete, increase of steel concrete.
Q:What is the carbon content of thread steel?
It is understood that carbon is the main element determining the performance of steel, because changes in carbon content directly lead to changes in crystal structure. With the increase of carbon content, the strength and hardness of the threaded steel increase, while the plasticity and toughness decrease. When the carbon content is more than 1%, the strength of the rebar decreases. The increase of carbon content also reduces the weldability and corrosion resistance of steel, and increases the cold brittleness and aging tendency of steel.
Q:How is thread steel made?
The billets used in continuous small mills are generally continuous billets, the length of which is usually 130~160mm, the length is about 6~12 meters, and the billets are 1.5~3 tons in weight. The rolling line is mostly flat interchange arrangement to realize all round rolling without torsion. According to different billet specifications and finished sizes, there are 18, 20, 22 and 24 small mills, 18 of which are mainstream. The use of bar rolling reheating furnace, high pressure water descaling, in addition to the new technology of low-temperature rolling, endless rolling, rolling, rolling development to adapt and improve the precision of rolling billet, rolling mill is mainly to improve the accuracy and speed (up to 18m/s). Product specifications are generally phi 10-40mm, Phi Phi 6-32mm or 12-50mm. The steel grades produced are low, medium and high carbon steels and low-alloy steels, which are widely needed in the market. The maximum rolling speed is 18m/s. The production process is as follows:Reheating furnace, roughing mill, rolling mill, rolling mill, water cooling device, cooling bed, cold shear, automatic counting device, bundling machine, unloading bench is calculated from the Shanghai kuanli Steel Co. Ltd. to provide thread steel weight: diameter * * outer diameter theory 0.00617=kg/m theory and 6.50.260 steel manufacturers specifications Jiuzheng 8.00.395 Jiuzheng steel 100.617 steel 120.888 steel 141.21 nine nine nine nine nine steel 161.58 steel 182 steel 202.47 steel 222.98 steel 253.85 nine nine nine nine nine steel 284.83 steel 326.31 steel.
Q:What are the specifications of thread steel?
China's standard recommended nominal diameter of 6, 8, 10, 12, 16, 20, 25, 32, 40, 50mm thread steel series.The supply length is divided into two kinds: foot length and foot length.China's export screw length selection range is 6 ~ 12m,The selection length of Japanese thread steel is 3.5 ~ 10m;Domestic sales of domestic thread steel, if the contract does not specify requirements, usually fixed length of 9m, 12m two length.
Q:What's the difference between rebar and thread steel?
Different grades of steel (different chemical composition). Round steel (HPB235) is carbon steel, steel is Q235; thread steel is low alloy steel; HRB335 grade steel is 20MnSi (20 manganese silicon); HRB400 grade steel bars are 20MnSiV or 20MnSiNb or 20MnTi etc.;
Q:What's the difference between earthquake resistant thread steel and common thread steel?
The seismic thread steel is much higher than the ordinary thread steel in the performance indexes, and the resistance to stress, bending force and so on are all higher than the ordinary thread steel.
Q:Laiwu steel thread steel trademark color blue and red Qu Qu
In the purchase of rebar, first of all, from the surface quality, the surface of normal steel without cracks, scarring and folding. The surface shall have a bump, but shall not exceed the height of the cross rib, and shall also have a quality grade mark on the surface of the steel bar. Inferior thread steel due to rolling with adobe, its surface quality is poor, often with burrs, burrs, cracks, scarring, some distortions obvious, end of irregular, and even cracks. At the same time, some small mill due to heating temperature and rolling speed is not enough, the surface color is red, uneven color. Second, from the appearance of size, you can use vernier caliper to measure whether the actual size is consistent with the marked size (general thread steel rolled with specifications), if there is a difference in the standard deviation (such as? 16 the standard diameter of the thread steel is 15.4 + 0.4mm, while the quality of the false thread steel is mostly about 13mm. Third, regular steel at the factory, mostly large bundles of packaging, bundles of steel are linked with the physical corresponding metal signs, indicating the factory name, steel number, batch number, specifications and inspection code. But shoddy steel due to poor production conditions, no large hoisting equipment, mostly small (about ten strapping) package or in bulk, no metal signs, no guarantee of quality.
Q:Why is round bar more expensive than thread steel?
Threaded steel should be used in the construction field, there are generally two, three grade steel, grade HRB335, HRB400 also has four grades, HRB500 thread steel.

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