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:How to hollow square steel welding
Welding welding of thin-walled square steel, should be very careful when welding, arc welding technique should be used to pick, watch live pool, found that the weld pool collapsing must be timely arc.
Q:100*100*2.5 square with 20 square meters of housing security light steel structure:
Sun room safety also includes many other factors, such as the sun room design is reasonable, whether the material is special, the construction team is professional, and so on, to summarize the sun room safety including safety design, material safety, construction safety, maintenance safety. Consulting Zhejiang Baiyu Dinglong sun room can not understand the place, professional and technical guidance.
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: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 ensure the steel paint off paint
The first thing to do (clean dust, oil removal, in addition to soluble salts), and then choose to kill or polish, then under suitable conditions (humidity is less than 85%, the substrate temperature is higher than the dew point of at least 3 degrees Celsius) and construction paint. Well done, the paint won't fall off.
Q:Why is a point of penetration of 2 square steel welding
Electrode selection 2, 0J422, welding current about 80, if conditions permit, you can use carbon dioxide welding, welding process is very good grasp.
Q:How the two square welded T shape angle and turning angle, how to improve the speed and quality?
You can't weld well without using tools, and it can't be welded with high quality. If the site is large and batch welded, you can use wood as a standard corner frame (quite a template). ), if the amount is small, you can buy a wooden triangle plate, steel square to live, post welding,
Q:How can we see is galvanized steel or wood
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:25-30mm drill pipe steel, to drill a lot, need what equipment
Drill with magnetic base.Magnetic drill is also called magnetic block drill. The magnet drill is to change the electric field at the bottom of the magnetic drill after energizing. The magnetic field is absorbed on the steel structure, and then the magnetic drill motor runs at high speed to drive the drill bit and realize the drilling of the steel structure.
Q:How much is the thick wall hollow square 30*30
Steel is an important material for national construction and the realization of the four modernization indispensable, wide application, wide variety, according to the different steel profile is generally divided into sections and plates, pipes and metal products four categories, in order to facilitate the organization of steel production, supply and improve order management, and divided into heavy rail, light rail, large steel, and steel, small steel, steel cold-formed steel, high-quality steel, wire rod, steel plate, steel sheet, electrical silicon steel sheet, strip steel, seamless steel pipe, welded steel pipe, steel, metal products and other varieties.
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