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6 Inch X 1/8 Inch Hot Rolled Steel Flat Bar

6 Inch X 1/8 Inch Hot Rolled Steel Flat Bar

Flat steel introduction

Flat steel refers to a steel with a width of 12-300mm, a thickness of 3-60mm, a rectangular cross-section and slightly dull edges. Flat steel can be a finished steel product, or it can be used as a billet for welded pipes and thin slabs for stacked sheets. Main use: Flat steel can be used as a finished material to make hoop iron, tools and mechanical parts, and used as building structure parts and escalators in construction.

product details

Compared

The product specifications are special. The thickness is 8-50mm, the width is 150-625mm, the length is 5-15m, and the product specifications are relatively dense, which can meet the needs of users. It can be used instead of the middle plate and can be directly welded without cutting.

The surface of the product is smooth and clean. The high-pressure water descaling process is used twice in the process to ensure the smooth and clean surface of the steel.

The sides are vertical and the water chestnuts are clear. The second vertical rolling in the finishing rolling ensures good verticality on both sides, clear corners, and good surface quality on the sides.

The scale of the product is accurate, three-point difference, the same level difference is better than the steel plate standard; the product is straight and the plate shape is good. The finishing rolling adopts continuous rolling process, automatic looper automatic control, to ensure that no steel is piled or stretched, and the product size is high. The tolerance range, three-point difference, same stripe, sickle bend and other parameters are better than the medium plate, and the plate shape is straight. Degree is good. Cold shearing, high precision of length setting.

The product material adopts the national standard, which is the same as the steel plate. The quality technical standards are organized according to YB/T4212-2010 standards (Q345B/Q235B refer to GB/T1591-94, GB/T700-06 standards respectively).

Advantage

Flat steel is rolled with negative deviation, but it is delivered according to the actual weight, and the utilization rate is 1 to 5 percentage points higher than that of the steel plate.

Flat steel can be produced with fixed thickness, fixed width, and fixed length according to user needs, which reduces cutting for users, saves processes, reduces labor and material consumption, and reduces the processing loss of raw materials, saving time, effort, and energy. material. Products have been professionally used in steel structure manufacturing, machinery manufacturing, automobile industry, mining machinery, hoisting machinery and other industrial materials.

Process flow

Precision flat steel production process The working principle of the flat steel finishing machine is to use two sets of staggered up and down leveling wheels to pre-level and final level the thickness of the cold flat steel wool; use a pair of oppositely arranged finishing The wheels are squeezed in the width direction to make the width compressed to reach the expected parameters, and the compression amount is adjustable; use 5 staggered straightening wheels to straighten the width. This system is mainly composed of a control box, a finishing press roller, a pre-leveling unit, a finishing unit, and a straightening unit.

The production process can be summarized as: pre-leveling → finishing → straightening → post-leveling. Flat steel/a/b is a steel with a width of 12-300mm, a thickness of 4-60mm, a rectangular cross-section and slightly pure edges. Flat steel can be a finished steel product, or it can be used as a billet for welded pipes and thin slabs for stacked sheets. Main use: Flat steel can be used as a finished material to make hoop iron, tools and mechanical parts, and used as house frame structural parts and escalators in construction. Flat steel is divided into two types according to its shape: flat spring flat steel and single-sided double groove spring flat steel. Hot-rolled spring flat steel is mainly used to manufacture leaf springs on automobiles, tractors, railway transportation and other machinery.

Process method

Process method of spring flat steel for automobile

The spring flat steel is made by converter smelting process. Compared with the existing technology, it has the following advantages and positive effects:

1. Flat steel smelting in a converter mainly uses molten iron as raw material, with fewer harmful elements in the molten iron, and the quality of the flat steel produced is guaranteed.

2. Due to the high yield and low power consumption, the cost per ton is lower than that of electric furnaces.

3. The molten steel is directly cast into billets, which eliminates the billeting process and reduces the cost.

4. The continuous casting billet has a high cut-to-length rate, which can guarantee the flat-steel cut-to-length rate and meet the needs of users.