Hot-rolled Square Steel Bar With Top Quality

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Loading Port:
China Main Port
Payment Terms:
TT or LC
Min Order Qty:
50 tons m.t.
Supply Capability:
500 tons per month m.t./month

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Product Description:

Specifications of Square Steel Bar:

-The Square Steel is hot rolled,

-Standard: GB,

-Grade: Q235 or equivalent.

 

Hot-rolled Square Steel Bar With Top Quality.

(The section of Square Steel)

 

Some details of Square Steel Bar:

-List 1. Chemical Composition.

 

Standard

Grade

Element (%)

GB

Q235B

C

Mn

S

P

Si

0.12~0.20

0.30~0.70

≤0.045

≤0.045

≤0.30

 

-List 2. Physical Properties

 

Grade

Q235B

Steel diameter(mm)

≤16

16~40

40~60

60~100

Yield Point Δs/MPa

235

225

215

205

Tensile Strength

375~500

   Elongation δ5%

26

25

24

23

 

-List 3.The length of a side and the theoretical weight of Square Steel.

 

Length of a side(mm)

Theoretical weight(kg/m)

Length of a side(mm)

Theoretical weight(kg/m)

6

0.283

32

8.04

7

0.385

*33

8.55

8

0.502

34

9.07

9

0.636

*35

9.62

10

0.785

36

10.17

11

0.950

38

11.24

12

1.13

40

12.56

13

1.33

42

13.85

14

1.54

45

15.90

15

1.77

48

18.09

16

2.01

50

19.63

17

2.27

53

22.05

18

2.54

*55

23.6

19

2.82

56

24.61

20

3.14

*58

26.4

21

3.46

60

28.26

22

3.80

63

31.16

*23

4.15

*65

33.17

24

4.52

*68

36.3

25

4.91

70

38.49

26

5.30

75

44.16

*27

5.72

80

50.24

28

6.15

85

56.72

*29

6.60

90

63.59

30

7.06

95

70.85

*31

7.54

100

78.50

Notes:

1, The theoretical weights in the list, base on the density of 7.85 g/cm3.

2, The numbers with *mean that they are not regulars or we don’t offer them.

 

-List 4. The allowed tolerance of Square Steel:

 

Length of a side(mm)

Allowed Tolerance

Group1

Group2

Group3

5.5~7

±0.20

±0.30

±0.40

7~20

±0.25

±0.35

±0.40

20~30

±0.30

±0.40

±0.50

30~50

±0.40

±0.50

±0.60

60~80

±0.60

±0.70

±0.80

80~110

±0.90

±1.0

±1.1

110~150

±1.2

±1.3

±1.1

150~190

――

――

±2.0

190~250

――

――

±2.5

 

Usage/Applications of Square Steel Bar:

-The Square Steel is normally used as structure steel.

-Row material for other structure steel like steel angles, channels, I-beams, H-beams, etc…

-Raw material for square tubes.

 

Packaging & Delivery of Square Steel Bar:

-Packing Detail: The products can be packed in bundles by steel wires.

-Delivery Detail: 30~45 working days after receive buyer’s T.T. or L/C.

 

Transportation & Marking:

-Transportation:

1, The products can be delivered by bulk vessel or by container.

2, The maximum quantity of loading of container is 25 tons.

3, The products usually are transported to the nearest port from the production place.

-Marks:

1, Color mark: there will be color marking on both ends of the bundles for the cargo delivered by bulk vessel. That makes is easily to distinguish at the destination port.

2, Tag mark: the tag marks will be tied up to each bundle. The information is usually including supplier’s logo and name, product name, made in China, products’ specifications and other information requested by customers.

 

Payment:

-Invoicing on theoretical weight or actual weight as customer’s request.

-Regular terms of payment:

1, 30% payment in advance, the remaining balance (70% payment) against the copy of B/L.

2, 30% payment in advance, the remaining balance (70% L/C) against the copy of B/L.

3, Negotiable.

 

Photos of Square Steel Bar:

-Products details(Tag Marks):

Hot-rolled Square Steel Bar With Top Quality.

-Square Steel Bar during the transportation:

Hot-rolled Square Steel Bar With Top Quality.

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Q:Why is a point of penetration of 2 square steel welding
Now the steel mostly under poor material, 2 - 0 1 - 8 square the actual thickness is good, which is on the one hand, choose another current must be small.
Q:Glass partition, square box outsourcing 1mm thick stainless steel, glass middle is how to set the quota
Can consider to increase the insurance factor, the edge of the glass with epoxy resin and solid wall such as granite wall adhesion (which went to the production of glass curtain wall) will not allow the use of styrofoam! Because of adhesive power, shear resistance and so on are poor.
Q:How to connect with steel purlin roof
The steel wall frame generally refers to the glass curtain wall of the airport, or the windbreak wall of the coal yard. It is the wall structure, and the former two are the roof structure.
Q:TIG welding of stainless steel plate and steel, how to regulate the argon arc welding
Wear zinc coating first, otherwise it is easy to form inclusion and other defects, and damage the strength of matrix.
Q:The difference between square and square.
Square tube is kind of square body, many kinds of material can form a square body, most square to steel for the majority, after unpacking, smooth, curly, circular tube is formed by welding, pipe rolling into square tube and then cut into the desired length. Usually 50 bags each. Square pipe in the spot with large specifications in most, in the range of 10*10*0.8-1.5 to 500*500*10-25, square tube by use is divided into structural square tube, decorative square pipe, building square pipe, mechanical square tube, etc..Square tube is a square tube of a name, that is, the length of the same steel pipe. The strip is rolled by process.
Q:The water was poured into the square on how to prevent rust after treatment
The steel should try to avoid the rain, if you have been caught in the rain, according to the properties of the steel is not the method to wipe, such as high hardness steel wire brush, cloth, cotton and other materials of low hardness.
Q:How to hollow square steel welding
Because the hollow steel thin wall, the use of electric welding should be used for small diameter with 2.5 electrodes, current should not be too large, can be around 100.
Q:What is the hot dip galvanized steel, production process?
The steel piece after being cleaned is dipped into the molten zinc liquid at about 445 DEG C so that the zinc coating is adhered on the surface of the steel member so as to prevent corrosion. Hot galvanizing process: finished acid washing - plating bath - drying - hanging - cooling - passivation - Cleaning - polishing - Inspection - finished products
Q:The moment 2mm thick galvanized square steel tube using what welding methods
Galvanized square tube adopts gas shielded welding, conventional J50 gas shielded welding wireArgon arc welding galvanized square pipe, zinc burning more severe, not recommended
Q:The difference between cold and hot galvanized steel hollow where
Hot rolling process is: the ingot directly into square tube, and then galvanized, also known as seamless pipe.Usually than cold-rolled steel hot-rolled square steel prices high.
GATE is a company specialized in production and sales of square steel,round steel and flat bar. The annual production capacity is 15 thousand mtons. Our company is aimed to provide the customer the product with good price and convenient service.

1. Manufacturer Overview

Location Hebei, China
Year Established 1995
Annual Output Value Above US$ 15 Million
Main Markets Middle east; Southeast Asia; Africa; East Aisa
Company Certifications

2. Manufacturer Certificates

a) Certification Name  
Range  
Reference  
Validity Period  

3. Manufacturer Capability

a)Trade Capacity  
Nearest Port Tianjin
Export Percentage 20%-35%
No.of Employees in Trade Department 11-20 People
Language Spoken: English; Chinese
b)Factory Information  
Factory Size: Above 6,500 square meters
No. of Production Lines 1
Contract Manufacturing OEM Service Offered
Product Price Range Average