Hot rolled square steel; square steel bar

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

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Product Description:

There are two types of Square Bar, one is hot rolled square bar and other one is cold drawn square bar. Our principal products is hot rolled square bar. We dedicate to products with material Q195 and Q235. We offer products with high quality and low price.

 

Specifications of Hot-rolled Square Steel Bar:

-Standard: GB,

-Grade: Q195/Q235 or equivalent.

-Chemical Composition:

Standard

Grade

Element (%)

C

Mn

S

P

Si

GB

Q195

0.06~0.12

0.25~0.50

≤0.050

≤0.045

≤0.30

GB

Q235B

0.12~0.20

0.30~0.70

≤0.045

≤0.045

≤0.30

-Mechanical Properties:

Mechanical Properties

Grade

Steel diameter(mm)

≤16

16~40

40~60

60~100

Yield Point Δs/MPa

Q195

≥195

≥185

-

-

Q235

235

225

215

205

Tensile Strength

Q195

315~390

Q235

375~500

Elongation δ5%

Q195

≥33

≥32

-

-

Q235

26

25

24

23

 

Measures of Hot-rolled Square Steel Bar (Big measures):

 

Section of Square Bar.

(Section of Hot-rolled Square Steel Bar)

 

-Length of a side and Theoretical weight of Square Bar (Big measures).

Length of a side(mm)

Theoretical weight(kg/m)

Length of a side(mm)

Theoretical weight(kg/m)

53

22.05

80

50.24

56

24.61

85

56.72

60

28.26

90

63.59

63

31.16

95

70.85

70

38.49

100

78.50

75

44.16




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: a(length of a side) * a * 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 Hot-rolled 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…

-Row material for steel pipes.

 

Packaging & Delivery of Hot-rolled Square Steel Bar:

-Packing Detail:

1, The products can be packed in bundles by steel wires.

2, The weight of each bundle no exceed normally 3 tons.

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

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

 

Payment:

-Invoicing on theoretical weight or actual weight as 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.

-The payment terms will be written in contraction detailedly.


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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: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 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: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:4*4 steel welding frame tank do strong?
If you want to be firm, you can use the three and four sections. The middle slot can be clamped on the edge of the fish tank, and the tripod should be four. It's so convenient and strong!
Q:How the steel columns and I-beam steel structure connection?
The characteristics of the steel is of high strength, light weight, good integral rigidity, deformation ability, it is used in the construction of large span and super high and super heavy buildings especially suitable; homogeneous and isotropic material, an ideal elastic body, the most consistent with the basic assumption of the general engineering mechanics; material has good plasticity and toughness that can have large deformation, can well withstand dynamic loads; short construction period; the high degree of industrialization, can carry out specialized production of high degree of mechanization; the processing of high precision, high efficiency, good sealing performance, so it can be used in the construction of tank, tank and transformer etc..
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 much is the thick wall hollow square 30*30
Square: solid, bar. Different from the square pipe, hollow, belong to the pipe. Steel (Steel): material of various shapes, sizes, and properties required by pressure processing for ingots, billets, or steels.
Q:How to fix the steel Aluminum Alloy
Aluminium and steel welding now has two processes, one is explosive welding, which relies on the tremendous pressure caused by the explosion to weld the steel and aluminum plate together. The other is a diffusion welding, at a certain temperature, the steel and aluminum contact surface diffusion, diffusion layer is very thin in the joint surface, this time is longer, and the high requirements, generally in the equipment of.Melting welding is not yet implemented, plus transition plate is now a method, not the true sense of the aluminum plate and steel welding, but the transition plate is produced by the above two methods.
Q:How to ensure the steel paint off paint
Authentic traditional painting techniques include the following three steps:The 1. is to use a paintbrush dipped in paint: paint bucket, spread on the coated surface.2., open oil: that is, the shop on the surface of the paint immediately pull open, to promote the film extended evenly.3. paint: paint brushes gently spread evenly with solid particles and straighten out the paint, the paint off and excess paint.You paint square, from top to bottom, by plane, according to my above paint method can ensure the uniform film.In addition, you must use special metal paint finishing of polyester type steel, to ensure no paint brush.

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