High Quality GB Standard Steel Square Bar 16mm-20mm

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Loading Port:
Tianjin
Payment Terms:
TT OR LC
Min Order Qty:
25 m.t
Supply Capability:
10000 m.t/month

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Product Description:

Product Description:

-Standard: GB,

-Grade: Q195 or equivalent.

-Chemical Composition:

Standard

Grade

Element (%)

GB

Q195

C

Mn

S

P

Si

0.06~0.12

0.25~0.50

≤0.050

≤0.045

≤0.30

 

 

Measures of HR Square Bar (small measures):

 

HR Square Bar.

(Section of HR Square Bar)

 

-Length of a side and Theoretical weight of Square Bar.

Length of a side(mm)

Theoretical weight(kg/m)

Length of a side(mm)

Theoretical weight(kg/m)

7

0.385

22

3.80

8

0.502

24

4.52

9

0.636

25

4.91

10

0.785

26

5.30

11

0.950

28

6.15

12

1.13

30

7.06

13

1.33

32

8.04

14

1.54

34

9.07

15

1.77

36

10.17

16

2.01

38

11.24

17

2.27

40

12.56

18

2.54

42

13.85

19

2.82

45

15.90

20

3.14

48

18.09

21

3.46

50

19.63

Notes:

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

2, Formula for theoretical weight of Square bar: (length of a side)2 * 0.00785

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

 

 

-Regular length of Square Bar:

Steel

Length of a side (mm)

Length of steel (m)

Normal steel

< 25

4~10

> 25

3~9

Steel of high quality

All measure

2~6

Tool steel >75

1~6

 

 

Usage/Applications of HR Square Bar:

-The Square Bar is normally used as structure steel.

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

 

Packaging & Delivery of HR Square Bar:

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

-Marks: We make tag marks and color marks. The tag marks with white background and red company logo will be tied up to each bundle of the products. The information is usually including basic information of products and company and other information requested by customers. As for color marks, we will paint both ends of bundles to make sure that it will be more convenient for customers to distinguish them from other products.

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

 

Transportation:

-The products can be delivered by bulk vessel or by container. As for container, products with the length of 6m will be loaded in 20’ container, with 9m or 12m, in 40’ container.

-The maximum quantity of loading of container is 25 tons.

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

 

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Q:What is the role of square toilet
16Mn Q345B 65Mn Q235B square square square square square steel is generally used in light steel structure mostly, such as steel roof, residential skeletonCommonly used structural steel according to the specifications of size for different purposes, decorative elements, assembled truss, supporting member, grid and other small pipe truss, large steel plant can be used for concrete filled steel tube truss steel column, a large stadium; another major use is round process pipeline, but in general the material and anticorrosion special requirements.
Q:The steel and wood preservative in the flower is how to connect
A dovetail screw / stainless steel fixed special anticorrosive wood keel screws,
Q:Building height is 5m, the main dry hanging stone square spacing value should be how much better?
Say so much, directly tell you, if it is with square steel (main keel), that spacing in 1--1.2 meters is absolutely no problem, the standard is not allowed more than 1.2 meters, but the actual construction exceeds the situation or some. If there is no special circumstances (such as from the wall out more than 300mm or), then no problem, rest assured!!!
Q:How to make the steel arc
The steel made arc:Solid steel:1, bending machine bend into arc2, flame cutting off arc baking3, bending machine coil windingHollow square:The hollow square filled with sand again by the method of solid steel bending arc.
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:Hot dip galvanized steel can be welded
Hot galvanized square tubes can be welded.Hot galvanized pipe, welding needs to be polished galvanized layer, thoroughly remove zinc coating and oil, dust and other debris, exposing the tube itself metal color, and then welding.Zinc melting point of 419.53 degrees Celsius, low melting point, Zinc Oxide Zinc Oxide formed layer of hot combustion in high temperature welding thousands of degrees Celsius in the combustion of white smoke barrier zinc combustion, influence the flow of the weld pool of liquid metal, destruction of welding arc stiffness, the porosity, slag, weld crack.
Q:How to fix the steel Aluminum Alloy
With self tapping screws, that is, with drill screws, building materials market can buy. Electric screwdriver, you can put the wood board through self tapping screws into the steel. But attention should be paid to buy the self tapping screw length, short patch does not live too long into the square, too much is not good.
Q:What is the use of square steel keel or welding steel canopy
Canvas awning: crank arm type retractable awning is in a separate structure, relatively safe, without the square tube, no paint spray, arm firmly and focus on both sides of the steel plate bracket, if the canopy length of more than 5m, the increase of direct arm assembly and focus on the middle support, on both sides of the iron with expansion screws are mounted directly on the solid wall, or welded firmly in indirect metal frame, the installation conditions need to pick out the roof, or rain gear plate, telescopic arm type awning is a retractable awning can be arbitrarily different stretching length, wind speed Aluminum Alloy bracket can withstand 50KM/ph. Maximum size of up to 18 meters wide, stretching length of up to 1.5 - 3.5 meters, the adjustment is divided into manual, electric, remote control and wind control, light control, rain control and many other ways for you to choose. Features: the main feature of this tent is cheap and practical. The sunshade cloth: generally equipped with ordinary canopy canvas, suitable for ordinary shops and small ordinary city.
Q:How can we see is galvanized steel or wood
The first dip galvanized pipe is a hot-rolled or cold-rolled galvanized steel or galvanized sheet for the blank shape by the cold bending process after section steel pipe welded square hollow square cross-section shape and size of the high-frequency. Or the cold formed hollow steel pipe prepared in advance will be galvanized by hot-dip galvanizing.

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