| SPECIFICATIONS | ALLOWABLE DEVIATION |
| 20x3~12mm(4/5" x 1/8"~12/25") | WIDTH≤50MM THICKNESS≤20MM THICKNESS DEVITION ± 0.4MM |
| 25x3~15mm(1" x 1/8"~3/5") |
| 30x3~16mm(1-1/5" x 1/8"~16/25") |
| 35x3~16mm(1-2/5" x 1/8"~16/25") |
| 40x3~16mm(1-3/5" x 1/8"~16/25") |
| 45x4~16mm(1-4/5" x 4/25"~16/25") |
| 50x4~16mm(2" x 4/25"~16/25") | 1.WIDTH≤50MM THICKNESS DEVITION ± 0.8MM 2.50<WIDTH≤75MM WIDTH DEVIATION ± 1.2MM 3.75<WIDTH≤150MM WIDTH DEVIATION ± 1.5MM |
| 60x4~16mm(2-2/5" x 4/25"~16/25") |
| 65x4~16mm(2-3/5" x 4/25"~16/25") |
| 70x5~16mm(2-4/5" x 4/25"~16/25") |
| 75x5~16mm(3" x 1/5"~16/25") |
| 80x5~16mm(3-1/5" x 1/5"~16/25") |
| 90x5~16mm(3-1/2" x 1/5"~16/25") |
| 100x5~18mm(4" x 1/5"~7/10") |
Hot rolled flat steel is a general purpose rectangular potential
rolled strip steel. Its specifications are expressed in millimeters
of thickness * width, flat steel can be finished steel, used for
components, ladders, Bridges and fences, etc. Flat steel can also
be used for welding steel and billets and laminated sheet slab.
(Material: Q215, Q235), implementation standard: GB704-1988 instead
of GB704-83, this standard is suitable for the thickness of 3~60mm,
width of 10~200mm, rectangular section of the general purpose hot
rolled flat steel. Delivery status: flat steel delivered in
straight strips. Measuring method: flat steel with fixed length and
mm length shall be delivered according to theoretical weight.
Section steel is one of the four major varieties of steel (plate,
tube, shape, wire). According to section shape, section steel is
divided into simple section steel and complex section steel
(special-shaped steel). The former refers to square steel, round
steel, flat steel, Angle steel, hexagonal steel; The latter refers
to i-steel, channel steel, rail, window frame steel, bending
section steel.
Square steel - square section of steel, hot rolled and cold rolled;
Hot rolled square steel side length 5-250mm; Cold-drawn square
steel side length 3-100mm.
Round steel - round section steel, hot rolled, forged and cold
drawn three, hot rolled round steel 5-250mm in diameter, which
5-9mm commonly used to do the raw material of the drawing wire,
called wire; As a result of the plate supply is also called hot
rolled wire rod. Forged round steel straight is thicker, used as
shaft blank. Cold-drawn round steel diameter 3-100mm, high
dimensional accuracy.
Flat steel - 12-300mm wide, 4-60mm thick, rectangular section with
slightly pure edge of steel. Flat steel can be finished steel, can
also be used as a blank for welding pipe and thin slab for rolling
sheet.
Angle - equilateral Angle and unequal Angle two kinds. Angle steel
specifications are indicated by the dimensions of side length and
side thickness. Angle bars are usually produced in sizes 2-20, i.e.
centimeters of side length. For example, No. 5 equilateral Angle
steel refers to the Angle steel with a side length of 5cm(50mm).
The same Angle steel often has 2-7 different edge thicknesses.
