High quality hot rolled deformed bar 6mm-50mm

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Loading Port:
Tianjin
Payment Terms:
TT OR LC
Min Order Qty:
25 m.t.
Supply Capability:
20000000 m.t./month

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Product Description:

Product Description:

Specifications of HRB400 Deformed Steel Bar:

Standard

GB

HRB400


Diameter

6mm,8mm,10mm,12mm,14mm,16mm,18mm,20mm,

22mm,25mm,28mm,32mm,36mm,40mm,50mm



Length

6M, 9M,12M or as required


Place of origin

Hebei, China mainland


Advantages

exact size, regular package, chemical and   mechanical properties are stable.


Type

Hot rolled deformed steel bar


Brand name

DRAGON


Chemical Composition: (Please kindly find our chemistry of our material based on HRB500 as below for your information)

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

Usage and Applications of HRB400 Deformed Steel Bar:

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..

Packaging & Delivery of HRB400 Deformed Steel Bar:

Packaging Detail: products are packed in bundle and then shipped by container or bulk vessel, deformed bar is usually naked strapping delivery, when storing, please pay attention to moisture proof. The performance of rust will produce adverse effect.

Each bundle weight: 2-3MT, or as required

Payment term: TT or L/C

Delivery Detail: within 45 days after received advanced payment or LC.

Label: to be specified by customer, generally, each bundle has 1-2 labels

Trade terms: FOB, CFR, CIF


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Q:What is the specific concept of thread steel through water and what is the difference?
The principle of water cooling technology to produce rebar is that austenite can be strongly deformed in the process of continuous rolling in the recrystallization zone, resulting in very fine, strongly hardened austenite grains with a lot of defects. With the high speed of cooling on the enhanced cooling of austenite, in a very short period of time, generally not more than 0.5s, is rapidly cooled to near the phase transition temperature, inhibit the growth of austenite grain, try to keep the hardening state of austenite. When the temperature is near the phase transition point, the fine hardening austenite grains are transformed into ferrite with proper grain size under proper air cooling conditions.
Q:How is thread steel made?
Steel is produced by a small rolling mill, rolling mill main types are divided into: continuous and semi continuous and open train. New and used in the world, mostly continuous small rolling mill. Popular steel mills have universal high-speed rolling mills and 4 slitting high yield mills.
Q:What kind of steel is carbon steel in threaded steel?
China and some countries according to the guarantee of delivery conditions, the ordinary carbon steel is divided into three categories: a steel (a steel), only ensure the mechanical properties, does not guarantee the chemical composition, type B steel (B steel), only to ensure that the chemical composition, does not guarantee the mechanical properties; special steel (C steel). Not only guarantee the chemical composition, mechanical properties and guarantee. Special steel is often used to make more important structural parts.
Q:What is the sign of steel rebar
Standards are the uniform rules for repeating things and concepts. It is based on the comprehensive achievements of science, technology and practical experience, and is approved by the competent authority and issued in a specific form by consensus by the parties concerned, as a criterion and basis for common compliance.
Q:How much is the minus difference per ton of thread steel?
In use, some mechanical strength, bending deformation property and welding performance are required. The raw steel billet for the production of threaded steel is carbon structural steel or low alloy structural steel which is treated by calm melting, and the finished steel bar is delivered in hot rolling forming, normalizing or hot rolling state. The grade of thread steel is composed of the minimum value of the yield point of HRB and brand.
Q:Grade 1, grade three, grade two, steel, wire rod, round bar
Round steel is a solid strip of steel whose cross section is round. The specifications are expressed in millimeters of diameter, such as "50", which means a round bar of 50 millimeters in diameter. Round bar is divided into three parts: hot rolling, forging and cold drawing. Standard Specification for hot rolled round steel is 5.5-250 mm. Among them, 5.5-25 mm small round bars are mostly supplied by straight strips. They are used as reinforcing bars, bolts and various mechanical parts. They are more than 25 millimeters of round steel. They are mainly used in the manufacture of mechanical parts or seamless steel tube billets.
Q:25 screw steel, how many meters per meter?
Hot rolled ribbed bar is divided into two levels, HRB335 (old No. 20MnSi), three HRB400 (20MnSiV, 20MnSiNb, old No. 20Mnti), four grade HRB500 three grade.
Q:All knowledge about thread steel!
Main origin: steel manufacturers in China are mainly distributed in the north and northeast, North China, Tang Gang, such as Shougang steel, bearing steel, such as the northeast, north of Fushun Steel resistant, etc., these two regions accounted for more than 50% of the total output of thread steel.The difference between round bar and round bar is that the surface has longitudinal ribs and transverse ribs, usually with two longitudinal ribs and transverse ribs uniformly distributed along the length direction. The rebar is a kind of small section steel, mainly used for the skeleton of reinforced concrete construction members. In use, some mechanical strength, bending deformation property and welding performance are required. The raw steel billet for the production of threaded steel is carbon structural steel or low alloy structural steel which is treated by calm melting, and the finished steel bar is delivered in hot rolling forming, normalizing or hot rolling state.
Q:The difference between wire and thread steel, wire and thread steel difference knowledge
The surface of the ribbed steel is ribbed, the ordinary hot-rolled bar is HRB, and the fine grained hot rolled steel bar is HRBF. The main use of thread steel: widely used in housing, bridges, roads and other civil engineering construction. Rebar main origin: steel manufacturers in China are mainly distributed in the north and northeast, North China, Tang Gang, such as Shougang steel, bearing steel, such as the northeast northwest Taiwan, Fushun Steel, these two regions accounted for more than 50% of the total output of thread steel.
Q:The difference between round face and round bar steel on concrete
Round steel is a solid strip of steel whose cross section is round. The specifications are expressed in millimeters of diameter, such as "50", which means a round bar of 50 millimeters in diameter.

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