Variety
Steel is one of the four major steel products (plate, tube, type, wire). According to the shape of the section, the section steel is divided into simple section steel, square steel and complex section steel (section steel). The former refers to square steel, round steel, flat steel, angle steel, hexagonal steel, etc.; the latter refers to I-beam, channel steel, steel rail, window frame steel, curved steel and so on.
Square steel
——Sectional steel of square section, divided into hot rolling and cold rolling; hot rolled square steel side length is 5-250mm; cold drawn square steel side length is 3-100mm.
Round steel
—— Round section steel, divided into hot rolling, forging and cold drawing. The diameter of hot rolled round steel is 5-250mm, of which 5-9mm is commonly used as the raw material for drawing steel wire, which is called wire; Called hot rolled wire rod. Forged round steel is thicker and used as a shaft blank. The cold drawn round steel has a diameter of 3-100 mm and a high dimensional accuracy. Angle steel - two types of angled steel and unequal angle steel. The specifications of the angle steel are expressed by the dimensions of the side length and the side thickness. The angle specifications usually produced are 2-20, which is the number of centimeters of the side length. For example, the angle steel of No. 5 refers to an angle steel with a side length of 5 cm (50 mm). The same angle steel often has 2-7 different side thicknesses.
Process method for automotive spring flat steel
Spring flat steel is made by converter smelting process. Compared with the prior art, it has the following advantages and positive effects:
1. The converter is used to refine the flat steel, mainly using molten iron as the raw material. The harmful elements in the molten iron are less, and the quality of the produced flat steel is guaranteed.
2. Due to the high yield and low power consumption, the cost per ton is lower than that of the electric furnace.
3. The molten steel is directly cast into a billet, omitting the blanking process and reducing the cost.
4. The continuous casting billet has a high straightening rate, which can ensure the flat steel straightening rate and meet the needs of users.
Hss Drill Bits For Wood-Hex Shank Twist Drii Bit
Use:Metal Drilling
Material:High Speed Steel
Application:Drilling Holes
Shank Type:Hex Shank(quick change shank)
Quick Change
Twist Design
Wood Drill Set- Hss Drill Bits For Wood
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Product Name |
4mm Wood Use DIN338 Fully Ground Impact Driver Drill Bits |
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Material |
HSS (Cobalt HSS-E is Available) |
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Process |
Fully Ground (Rolled, Rolled & Polished, Milled are Available) |
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Standard |
DIN338 (Stub DIN1897, Long DIN340, Extra Long DIN1869, |
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Size |
0.2-30MM 1/16" - 31/64" , A - Z, 1# - 60# |
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Point Type |
118 Degree Regular Point ,135 Degree Split Point, Pilot Point are Available |
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Shank Type |
Straight Shank ,Hex Shank, Tri-Flats Shank, Double R Hex Shank, Reduced Shank, |
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Helix Angle |
Regular Spiral Type N (Slow Spiral Type H, Fast Spiral Type Ware Available) |
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Web & Flute Type |
Regular Web & Flute (Thick Web with Parabolic Flute, Heavy Duty Web with Regular Flute are Available) |
Hex Shank Twist Drii Bit,Jobber Length Hex Shank Drill Bit,1/4 Hex Shank Drill Bit,Taper Shank Twist Drill
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