The difference between hexagon bar and hexagonal tube, does hexagon bar have a hollow tube?

Answer; The difference between a hexagonal rod and a hexagonal tubeIt is a kind of section steel, also known as a hexagonal bar, and the cross-section is a regular hexagonal bar. Hexagonal steel weight calculation formula (kg) = opposite side width opposite side width length Production specifications: S8-S80

<> impact toughness of hexagonal steel pipes.

The ability to resist damage is called impact toughness.

2 Hexagonal steel pipe strength refers to the performance of metal materials to resist failure (excessive plastic deformation or fracture) under static load. Since the load acts in the form of tensile, compression, bending, shear, etc., the strength is also divided into tensile strength, compressive strength, bending strength, shear strength, etc. There is often a certain relationship between various strengths, and tensile strength is generally used as the most basic strength indicator in use.

Hexagonal bar belongs to the bar, the shape is a solid steel with a hexagonal shape, the hexagonal pipe belongs to the pipe, the material is round steel, the shape is the outer hexagonal inner hollow, the outer hollow inner hexagon, the inner and outer hexagonal hexagonal bar, etc., now the hexagonal bar is mainly used in the manufacture of hexagonal tubes, many manufacturers carry out the selection of hexagonal bars, carry out their own drilling, follow-up processing and other operations, and finally make hexagonal pipes, hexagonal pipes are perforated by round steel, pickling, heading, cold drawing and other operations, and finally made into hexagonal pipes.

In the manufacturing process of hexagonal bar raw materials, there will be some unnecessary process operations, such as punching, which will cause a certain amount of waste chips, high processing costs, and will also affect environmental protection issues, and the hexagonal pipe processed by round steel can avoid these problems.

Hexagonal tube.

Difference Between Solid and Hollow.

Hexagonal steel is a type of section steel, also known as hexagonal bar, and the cross-section is a regular hexagonal bar. The nominal size is the length s of the opposite side. Hexagonal steel can be composed of various different stressed components according to the different needs of the structure, and can also be used as a connector between components.

It is widely used in various building structures and engineering structures, such as house beams, bridges, transmission towers, lifting and transportation machinery, ships, industrial furnaces, reaction towers, container racks and warehouse shelves.

Hexagonal rods are basically solid touch base leather bars, for hexagonal tube parts, many manufacturers use hexagonal rods to punch, and other process operations, forming hexagonal tube laughing difference, and eventually become hexagonal parts, so that when operating, time-consuming and laborious also greatly consume costs (including labor costs, manufacturing costs, and corresponding management costs), resulting in waste chips also polluting the environment.

You can choose a hexagonal seamless hollow tube instead of a hexagonal rod for processing, which saves time and effort and reduces unnecessary costs.

Hexagonal seamless tube replaces hexagonal bar.

The difference:

1: The geometry is different.

The inner hexagon of the plum is the plum blossom type, and the hexagonal screw is a regular hexagon.

2: Use different tools.

Torx hexagon is T type (T3-T10) screwdriver removal, hex screw is hexagon screwdriver removal.

3: The scope of use is different.

The hexagon inside the plum blossom is used relatively little, and it is basically difficult to see on the market, the hexagon screw is the most commonly used, and it itself has many types.

1. The difference between the hexagon and the hexagon screw is the screw head, the hexagon screw head is the plum blossom shape, and the hexagon is the regular hexagon.

Hexagon: It is a regular hexagon, and the screws are screwed with a special hexagon wrench.

Inner plum blossom: similar to the octagon, there is a curvature between the corners and edges, similar to the shape of the plum blossom, so it is also called the plum blossom screw.

2. Classification by head type:

There are many kinds of national standards for hexagon bolts, but there are certain ones, all of which are hexagon.

1. Hexagon bolts are divided into cylindrical head hexagon bolts according to the head, which is the most commonly used, and it itself has many types, according to the material, there are iron, that is, carbon steel and stainless steel.

2. Stainless steel hexagon bolts are also available in stainless steel SUS304 and SUS202 and other materials. Semi-round head hexagon bolts, this is also called pan head hexagon bolts. Countersunk hexagon bolts, the head is flat, and the inside is hexagon.

3. There is also a special national standard, which is called headless hexagon bolts. That is, we often call machine screws, stop screws, and set screws. These are all common names for headless hexagon bolts, but they all mean the same.

4. Of course, there are also some bolts with hexagonal plum blossom heads in the shape of flowers. This application is relatively rare, and it is basically difficult to see in the market. Although there are many types of hexagon bolts, there are basically some special ones, and few people will use them on the market.

The more used is the cylindrical hexagon bolt, also known as the cylindrical hexagon screw.

The difference between Torx and hex screws is the screw head. The plum blossom hexagonal screw is plum blossom shaped, and the hexagonal shape is regular hexagonal.

Plum blossoms hexagon and hexagon.

The difference between screws is the screw head, the torx hexagon screw head is the torx shape, and the hexagon is the regular hexagon.

Hexagon: It is a regular hexagon, with a special hexagon wrench to screw the inner plum blossom: similar to the octagon, there is a radian between the corners and edges, similar to the shape of the plum blossom, so it is also called the plum screw.

1. The screw heads are different.

The hexagon screw head of the plum blossom is the plum blossom shape, and the hexagon is the regular hexagon.

2: Use different tools.

The inner hexagon is the hexagonal groove above the head, and the inner plum wine is the plum blossom groove above the head. Different geometries require different wrenches to twist.

3. The application bolts are different.

Hexagon socket screws should be semi-round head socket bolts, which are also called pan head socket bolts. Countersunk hexagon bolts, the head is flat, and the inside is hexagon. Torx screws should be headless hexagon socket bolts.

That is, we often call machine screws, stop screws, and set screws.

Excerpt from other people's opinions: The inner hexagon and inner torx are not easy to screw and slip, and the inner torx is better than the inner hexagon, but it is only for the screwdriver.

The requirements are relatively high, or else, they will die faster. When the screw of the inner plum blossom is screwed, the contact area with the screwdriver head is the largest, in other words, the force per unit area is the smallest. The chance of slipping should also be minimal.

Personal opinion: Inner torx wrenches are similar to gears and splines, and should be able to withstand more torque than hexagon sockets.

Hole in the middle: I don't know.

The outer hexagon is the ordinary screw we take, and the inner hexagon is the screw that is recessed into six corners.

The hole in the middle is because there is a bulge in the middle of the inner hexagon of the plum blossom.

The s of the outer diameter of the hexagonal bar refers to the distance to the opposite side, and h refers to the distance to the opposite angle.

The ASTM A182 standard has a detailed explanation of 316L (the biggest difference from 316 is the carbon content). And stainless steel hollow hexagon includes too many types.

Hexagonal steel pipes are also known as special-shaped steel pipes, which also have octagonal pipes, diamond-shaped pipes, oval pipes and other shapes. It is an economic cross-section steel pipe, including non-circular cross-sectional profile, equal wall thickness, variable wall thickness, variable diameter and variable wall thickness along the length direction, symmetrical and asymmetrical section of the section, etc. Such as square, rectangle, cone, trapezoidal, spiral, etc.

The special-shaped steel pipe can better adapt to the particularity of the use conditions, save metal and improve the labor productivity of parts manufacturing. It is widely used in aviation, automobiles, shipbuilding, mining machinery, agricultural machinery, construction, light textiles and boiler manufacturing. The methods for producing special-shaped pipes include cold drawing, electric welding, extrusion, hot rolling, etc., among which the cold drawing method has been widely used.

1. Steel pipe for heat exchanger: the specification is from the outer diameter of 10-60mm, and the number of teeth can be arbitrarily selected according to user requirements.

2. Small-diameter heterogeneous steel pipes: such as outer circle inner hexagonal, outer circle inner square, outer hexagonal inner circle twelve-angle steel pipe, etc. The specifications range from 8-60mm in outer diameter, and the inner hole can be according to user requirements.

3. Isowall special-shaped steel pipe: This variety can be determined according to user requirements, and non-standard welded pipes can be produced according to user requirements.

The socket is divided into two eyes, one end is connected to the wrench and the other end is set on the hexagonal screw, 1 4 and 1 2 and 3 8 are the socket connection caliber.