Round steel is a kind of hollow cylindrical metal material, which is widely used in construction, machinery manufacturing, automobile manufacturing, energy, transportation and other industries.
Round steel is mainly made of carbon steel, alloy steel and tool steel.
Among them, carbon steel round steel refers to steel with carbon content within the range of 0.04% to 0.20%.
Carbon steel round steel is an economical and practical structural material with good weldability, plasticity and machinability.
Alloy steel round steel refers to the steel with a certain amount of alloying elements (chromium, manganese, cobalt, boron, molybdenum, vanadium, etc.), which can obtain higher strength, hardness, corrosion resistance and wear resistance.
Tool steel Round steel is a kind of high-speed tool steel material, which has the advantages of high hardness, high red hardness and wear resistance.
The production process of round steel is very diverse, including hot rolling, cold drawing and cold drawing.
Among them, the hot rolling production process refers to the steel material heated to a certain temperature, plastic deformation through rolling machinery and equipment, pressed into different specifications of the shape of steel.
The cold drawing process is the use of steel wire material for cold drawing, which can obtain a higher surface finish for the production of precision parts.
Cold drawing process is to draw steel in cold storage to obtain higher density, hardness and strength.
The wide application of round steel lies in its material characteristics and production process, which can meet the needs of different industries.
In construction projects, round steel is mainly used to build steel structure houses, large factories, Bridges, oil drilling platforms and oil mining equipment.
In the machinery manufacturing industry, round steel is mainly used to process gears, bearings, connecting rods, pins, shafts and other parts.
In the automobile manufacturing industry, round steel is mainly used to make auto parts, frames, suspension systems, guiding mechanisms and so on.
It is also widely used in energy, transportation and other industries.
1).Composition:
| C | Si | Mn | Cr | Mo | P | S |
| 0.38-0.43 | 0.15-0.35 | 0.75-1.00 | 0.8-1.10 | 0.15-0.25 | <0.035 | <0.04 |
2). Equivalent Grades : | GB | DIN | ASTM | JIS | BS | NF |
| 42CrMo | 1.7225 | 4140 | SCM440 | 708M40 | 42CD4 |
3). Diameters:6mm-400mm Length:3.5m-9m or as required 4). Smelting Process: EAF+LF+VD Note:EAF=Electric Arc Furnace; LF=Ladle Furnace; VD=Vacuum Degassing; 5). Properties of 4140 alloy steel: Special alloy steel, engineering steel supplied in quenched and tempered conditions. Very good machinability. High toughness, creep strength, repeated impact resistance. 6). Application of 4140 alloy steel: Components with high requirements on toughness, e.g. gear wheels, pinions, connecting rods, parts for mechanical engineering
Application: steel grating, widely used for construction, ship building,
machinery manufacturing, steel structure
Packaging & Delivery:
Packaging detail: Bundle, loose and bare or according customer inquire
Delivery detail: Depend on the customer inquire
Steel Dowel Bars Specification :
Standard : ASTM A615, ASTM A1078, ASTM A775, BS4449, AASHTO M254
Epoxy Coating Standard : ASTM A775 / A775M
Ends : Chamfering & Plain
Grade : ASTM A615 Grade 60, Grade 250
Length : 100mm to 6000mm
| Mild Carbon Steel Dowel Bar |
| Product | Coating | Steel Grade | Coated Standard | Diameter (mm) | Diameter (inches) |
| Dowel Bar | Black(uncoated) | BS4449-grade250, ASTM A615/A615M, A615 Gr60, Gr40, Grade500N, Q235B, SS400, S275JR, etc | AISI, ASTM, BS, DIN, GB, JIS | 16 ~ 50 | 5/8″~ 2″ |
| Epoxy coated dowel bar | Epoxy coated | ASTM A1078 | 16 ~ 50 | 5/8“~ 2“ |
| Galvanized dowel bar | Galvanized | BS EN ISO 1461:2009; AS/NZS 4680 | 16 ~ 50 | 5/8“~ 2“
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