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.

PRODUCT FEATURES

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

PACKGING & SHIPPING

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

Hebei Qijie Wire Mesh MFG Co., Ltd. is located in Anping county, Northern China, which is famous as "the hometown of wire mesh" in the country.

The company was founded in 1999 with a registered capital of 500,000 US dollars, covering 40,000 square meters, has 3 plant areas, 22 stainless steel woven mesh machines, 28 welded wire mesh machines, 11 double twisted hexagonal gabion baskets machines, 8 cutting and flattening mesh machines, and 2 automatic PVC coating lines. Qijie does sales both home and abroad with annual amount of more than $ 20 million, the main products are stainless steel fly screen mesh, fence panels, gabion baskets, woven screening mesh, welded wire mesh, expanded metal mesh, perforated metal and various wire products.

Our main aim is to ensure customer satisfaction by providing superior quality products at reasonable prices. We use meticulous quality control procedures and analysis in order to ensure our products meet the international standards. A combination of competitive prices, on-time delivery and quality guarantee will make us our customer's best choice.