High Quality GB Standard Steel Square Bar 63mm-80mm

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

OKorder Service Pledge

Quality Product

Order On-line Tracking

Timely Delivery

OKorder Service Pledge

Credit Rating

Credit Services

Credit Purchasing

Share to:

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.

 

Send a message to us:

Remaining: 4000 characters

- Self introduction

- Required specifications

- Inquire about price/MOQ

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 difference between galvanized square and galvanized steel
Hello, SECC 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; galvanized square cold-formed steel hollow or well in advance of the hot dip galvanized after processed tube.Galvanized square steel: first the steel bar is solid. Different from the square pipe, hollow, belong to the pipe. The steel surface is galvanized, galvanized steel.
Q:The difference between square and square.
Square refers to the use of a square billet material rolled out, or by round steel after cold drawing process, the material out of the square. Formula weight: side length of square theory * * 0.00785=kg/m.
Q:The steel structure of 40*80 steel, it is tempered glass top. The steel internal fight foaming agent. But there is rust in the inner surface. Will it affect the safety? How to deal with
This shows that the coating has entered the water or corrosive medium, and should not have much to do with the wall of the square pipe. Reasons for coating failure:1, the grass-roots treatment is not good. Steel structure shall be sand blasted.2, the selected paint should be better performance of anti-corrosion coatings, rather than ordinary alcohols and acids.3, must have primer, finish matching.4, coating thickness must be more than 200 microns in order to effectively prevent water penetration. The paint sprayed from you is likely to be caused by too much coating. Unless you spray it with airless spraying.
Q:The anti-theft lock in the steel compression spring is what?
Spiral spring requires surface decarburization less than 0.5% of the diameter, polished surface, long fatigue life, dimensional tolerances more stringent requirements, there should be no defect transmission. The hot working process is often difficult to meet the requirement of the user, therefore, hot forming of cold forming of automotive suspension coil spring gradually replaced by drawing, heat treatment (quenching and tempering of martensite GET) spiral spring made after.
Q:How to combine the paint and galvanized steel
No, as long as you choose the special galvanized steel pipe paint, mcGZ type is ok!
Q:How to connect with steel purlin roof
The canopy is divided into two parts, one is the structure of part two is part of enclosure (that is, roofing materials, such as glass, aluminum plate, color plate etc.)
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:4*4 steel welding frame tank do strong?
Electronic tube bracket fixed on a shelf, and then put the top shelf in the aquarium, pay attention to water, heat, can be a good solution, the lamp holder can buy ready-made, bought a switch, wires, plugs, insulating tape back to assemble their own good is.
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.

1. Manufacturer Overview

Location
Year Established
Annual Output Value
Main Markets
Company Certifications

2. Manufacturer Certificates

a) Certification Name  
Range  
Reference  
Validity Period  

3. Manufacturer Capability

a)Trade Capacity  
Nearest Port
Export Percentage
No.of Employees in Trade Department
Language Spoken:
b)Factory Information  
Factory Size:
No. of Production Lines
Contract Manufacturing
Product Price Range