square steel carbon steel square bar

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Loading Port:
Tianjin
Payment Terms:
TT OR LC
Min Order Qty:
1000 m.t.
Supply Capability:
5000 m.t./month

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Product Description:

Product Description:

We offer Square Steel Bar with grade Q195 / Q235

Specifications of Square Steel Bar:

-Standard: GB,

-Grade: Q195/Q235 or equivalent.

 

Chemical Composition:

-Chemical Composition. Q195



Standard

Grade

Element (%)

GB

Q195

C

Mn

S

P

Si

0.06~0.12

0.25~0.50

≤0.050

≤0.045

≤0.30


-Chemical Composition. Q235



Standard

Grade

Element (%)

GB

Q235B

C

Mn

S

P

Si

0.12~0.20

0.30~0.70

≤0.045

≤0.045

≤0.30


 

Measures and Tolerances of Square Steel Bar:

 

Section of Square Steel Bar.

(The section of Square Steel Bar)

 

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



Length of a side(a, mm)

Theoretical weight(kg/m)

Length of a side(a, 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

79

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.

 

-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 Steel Square 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…

 

Packaging & Delivery of Steel Square Bar:

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

-Marks:

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

2, Color marks: we will paint both ends of the bundles of these products to make sure that they are more evident. It’s will be more convenient for the customers to distinguish them at the destination port.

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

 

Payment:

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

-FOB, CFR or CIF.

-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.

 


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Q:Round and square steel which is strong
From the round and square steel specifications and appearance quality of the steel, 1. force large contact surface and relatively small pressure, 2. and three provide support force and the force behind. The force contact surface of round steel is very strong.
Q:How to make the steel arc
If reinforced by 1. fold 2. arc bending machine flame cutting machine 4. fold 3. baking arc building arc roll can be solid steel grip bending machine processing.
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:Are square steel, rectangular tube and angle steel shaped or light steel?
Section steel is a kind of strip steel with definite section shape and size.In accordance with the different smelting quality of steel, steel is divided into ordinary steel and high quality steel. According to the current catalogue of metal products, ordinary steel can be divided into large section steel, medium section steel and small section steel. The section steel can be divided into I-beam, channel steel, angle steel, round steel and so on according to its sectional shape.Large steel: large steel, I-beam, channel steel, angle steel and flat steel are hot rolled, round bar, Fang Gang, six angle iron in addition to hot rolling, there are forging, cold drawn and so on.I-beam, channel and angle steel are widely used in industrial buildings and metal structures, such as factories, bridges, ships, agricultural machinery, vehicle manufacturing, transmission towers, transport machinery, often in conjunction with the use of. Flat steel is used as a bridge, a housing, a fence, a transmission ship, a vehicle, etc. on a construction site. Round steel and square steel are used for all kinds of machine parts, agricultural machinery parts, tools and so on.Medium type steel: medium type steel, medium, groove, corner, round, flat steel use, similar to large steel.Small steel: small steel, middle, round, square, flat steel processing and use similar to large steel, small diameter round steel is often used for building steel
Q:Hot dip galvanized steel can be welded
The hot dip galvanized steel pipe has excellent atmospheric corrosion resistance, and it can easily form a protective film on the surface at room temperature, which has good corrosion resistance.When the weld is cooled, coat the weld with silver paint to avoid rusting at the weld.
Q:What is the cold drawn steel material? Why did it break?
This should be the problem of raw materials, raw materials are hot-rolled round steel or steel, raw material impurities, there will be extended by cold drawing fracture phenomenon. Materials for large steel mills are proposed.
Q:You need to light steel keel wall square steel
Lightweight partition walls are usually made of lightweight bricks (aerated concrete or hollow bricks) made of cement mortar. The utility model has the advantages of good sound insulation and good fire prevention performance. (relative) but it is troublesome to thread the pipe in the wall. And wet operation, long duration.
Q:4 x6 1.5 square meters thick, how much money
1, the steel prices generally calculated in tons. To see you say the steel is hot dip galvanized or black material.2, hot galvanized general 4500/ tons,3, black wood generally in 3800/ tons.That is 4.5 yuan /kg and 3.8 yuan /kg. Forget it. You say this kind of steel is 2.355kg per meter,
Q:Twist steel (twisting steel) there is no standard?
Lattice steel plate steel bar is also called twist, the steel twisted shape, so only when the square size annotation annotation, common general specifications for 8*8mm, 6*6mm, 5*5mm, in the standard steel plate, the bar is defined as fixed on the bearing flat steel, round steel, square steel twisted or flat, that is say, don't necessarily use twisted steel (steel twist) but hot dip galvanized steel grid plate used in the steel industry used torsion, stainless steel using round steel, and make use of flat bar made of steel plate. We called steel grid plate or pressure locking steel plate, steel plate of GB also do this cross sectional area:: twisted steel, round steel bar with flat steel, its cross-sectional area of not less than 20 mm.
Q:As for steel structure steel, how appropriate
The size of the material is strongly related to the load on your floor, and the roof material and column size are also related to your span and the local Blizzard loads. You can choose the size of the material according to the local conditions.

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