The Hot Rolled Steel Strip

Strip is to suit the different needs of the industrial sector produced a long narrow plate. Also known as the strip strip, the width of less than 300 mm in general, but with economic development, the width has no limit. Vol Strip into supply, a high dimensional accuracy and surface quality, and ease of processing, material savings and other advantages. Same with steel, strip steel material used by ordinary strip divided into two types and quality strip; According to the method of processing heat, cold-rolled two.
      Widely used in the production of welded steel pipes for the cold rolled steel strip billets, manufacture bicycle frame, wheels, the closure device, washers, springs films, saw-blade and blade, and so on.
(1) ordinary hot rolled steel strip
1, ordinary hot-rolled carbon structure Strip (GB3524-83)
Hot-rolled carbon steel used for ordinary carbon structural steel material, made of the thickness of hot-rolled 2.00-6.00 mm, the width of 50-300 mm strip.
(1) the principal purpose
Blank mainly for cold rolled steel strip, cold-formed steel billet-welding steel pipe billet and bicycles, hardware products manufacturing.
(2) of the brands and material chemical composition, mechanical properties
The GB700-79 (88).
2, bicycle broadband hot rolled steel strip GB3645-89)
Bicycle broadband hot-rolled steel to carbon steel and low alloy steel for the material, made of the thickness of 2.0-8.0 mm hot-rolled strip, the strip width of up to 1300 mm.
(1) the principal purpose
Bicycle manufacturers dedicated to the materials.
(2) materials and chemical composition of the brands
(3) Mechanical Properties
(4) strip (board) size specifications
Strip thickness of 2.0-6.0 mm, plate thickness 7.0,8.0 mm.
Strip (board) Width: Boiling steel ≤ 1300 mm (a = 2.0-6.0)
Killed steel ≤ 1250 mm (a ≤ 3.0)
≤ 13 mm (a ≤ 3.0)
Plate Length: 760 mm diameter steel coil, plate 4-6 m.
3, bicycle Hot Strip (GB3647-89)
(1) the principal purpose
Specializing in manufacturing bicycles, and the chain, also in the blank for cold-rolled and welded pipe billets.
(2) materials and chemical composition of the brands
(3) Mechanical Properties
(4) strip size specifications
Strip thickness of 2-8.0 mm, width of 60-250 mm.
4, Hot Strip Pressure Vessel (GB5681-85)
(1) the principal purpose
Used in the manufacture of low-pressure vessels.
(2) materials and chemical composition of the brands
(3) Mechanical Properties
(4) specifications for size and production units Strip
Strip thickness of 4 mm, 80 mm width of the double length, the length of not less than 70 m (Volume).
(2), hot rolled strip quality
1, the structure of hot-rolled carbon quality steel strip (GB8749-88)
(1) the principal purpose
As the cold-rolled strip steel billets, but also used in the manufacture of bicycles, sewing machine parts and hardware manufacturers.
(2) materials and chemical properties of the brands
The GB699 (technical quality carbon steel structural conditions).
(3) specifications for size and production units Strip
Strip thickness of 2.50-5.00 mm (differential 0.25), width of 100-250 mm.
2, hot-rolled stainless steel strip (GB4230-84)
Divided into austenite by organizational characteristics of type, a austenitic ferritic physique, ferrite physique, martensitic and precipitation-hardening of five categories.
(1) the principal characteristics and uses
(2) of the brands and material chemical composition, mechanical properties
The GB1220-84 refer to the provisions of (thick hot-rolled stainless steel plate).
(3) specifications for size and production units Strip
Strip thickness of 4-8.0 mm width 30-120 mm; In addition to a long-distance volume supply, there are 2-10 m of the straight.
3, watches with heat, cold rolled stainless steel strip (GB5215-85)
Stainless steel watch with stainless flat steel that is used watches, the hot and cold rolled two. An increase in the production process of certain brands of sulfur and accession-cutting elements copper, calcium, to be raised
The high cutting speed, but also ensure that the watches have high machining precision, surface brightness, aesthetics, etc.. In addition to the solution treatment so that organizations with a single austenite, manufacture watch cases may have magnetic properties.
(1) the principal purpose
Shell, etc. used in the manufacture of watches.
(2) materials and chemical composition of the brands
(3) Mechanical Properties
The solution treatment of flat steel, the hardness value of HB140-200.
(4) strip size specifications
Strip thickness of 6-9 mm (hot); 4-6 mm (Cold); Width 60-85 mm (hot); 30-60 mm (Cold).
4, hot-rolled alloy with high electric resistance (GB1234-85)
Hot-rolled alloy with high resistance electrothermal called Ni-Cr alloy belt.
(1) the principal purpose
Used in the manufacture of electric furnace, the heat civilian components and electrical resistivity pieces.
(2) materials and chemical composition of the brands
Electrothermal alloy hot-rolled strip high resistivity materials used for grades CR20Ni80, Cr15Ni60, 1Cr13Al14, 0Cr25Al5, 1Cr25Al9 9Cr18 and, at its chemical constituents
No. GB1234-85 requirements.
(3) alloy specifications with the size and production unit
Strip thickness of 2-6 mm; Width 20-100 mm; ≥ 5 m length or weight of 8 kg.