Product Description

1020 1040 round bar, has extremely high hardness. Cemented carbide is composed of hard particles such as tungsten carbide or tungsten titanium carbide and bonding metal, and has a very high hardness, generally between 1200 and 1500Hv. Therefore, 10,20 1040 round bar has excellent wear resistance and can resist wear and friction well.

Advantages

Because 1020 1040 round bar has extremely high hardness, it can resist the hardness and heat of the material during the cutting process, so that it can maintain good cutting performance.

Again, 1020 1040 round bar has excellent corrosion resistance. 1020 1040 round bar has high chemical stability, is not easily affected by corrosion and oxidation, and can be used for a long time in harsh working environments, so it is widely used in chemical, petroleum, metallurgy and other fields.

Ordinary carbon structural steel, also known as ordinary carbon steel, has wide limits on carbon content, property range and phosphorus, sulfur and other residual element content. In China and some countries, according to the delivery guarantee conditions, there are three categories: Class A steel (Class A steel) is the steel that guarantees the mechanical properties. Class B steel (Class B steel) is the steel to ensure chemical composition. Special steel (Class C steel) is a kind of steel that can ensure both mechanical properties and chemical composition, and is often used to manufacture more important structural parts. At present, A3 steel (Class A No. 3 steel) with a carbon content of about 0.20% is the most produced and used in China, mainly for engineering structures. Some carbon structural steels also add a small amount of aluminum or niobium (or other carbide forming elements) to form nitride or carbide particles to limit grain growth, strengthen steel and save steel. In China and some countries, in order to meet the special requirements of professional steel, the chemical composition and properties of ordinary carbon structural steel are adjusted, thus developing a series of professional steel for ordinary carbon structural steel (such as steel for bridges, buildings, reinforcement, pressure vessels, etc.).

1020 1040 Round Bar Parameter (Specification)

Product Name	SAE 1040 1020 Hot Rolled Iron Carbon Steel Round Bars Round Steel Bar
Grades	1040 1020 20MnCr5
Surface	Black,Polish,Oiled
Technique	Hot rolled
Delivery Condition	Black Surface,Rough machined or as required
Test	100% Ultrasonic test
Process	EAF + LF + VD + Forged + Heat Treatment
Dimension	Diameter : 16mm - 250mm
Dimension	Length : 4000-15000mm or cut to length
Application	1): Can be used in many fields such as building, automobile, shipbuilding, petrochemical, machinery, medicine, food, electric power, energy, space, building and decoration, etc. 2): Can be made into mould template, mortise pin, column 3): This kind of steel have good mechanical property, is widely used in structural parts which may support stress alternation, especially made into some connecting rods, bolts, wheel gear... 4): This kind of steel is the most common blanks and materials of shaft parts. Its die welding material model is CMC-E45.
Inspection	Mill Test Certificate is supplied with shipment,SGS inspection is accepted if needed
Package	Standard export seaworthy package or as required.
Port	Tianjin Port or Customer designated port of destination
Delivery Time	5-15 days,according to customers' grades,dimension and quantities

Category	Grades	Sizes	Standard
Carbon structure steel	Q195, Q215, Q235, Q275	16mm-250mm	GB/T700-2006
Low alloy high strength structure steel	Q295, Q345, Q390, Q420, Q460	16mm-250mm	GB/T1591-2008
Prime Carbon structure steel	10#, 20#, 35#, 45#, 60#, 20Mn, 65Mn, B2, B3, JM20, SH45,S45C, C45	16mm-250mm	GB/T699-1999
Alloy structure steel	30Mn2, 40Mn2, 27SiMn, 42Crmo, 20Cr,40Cr,20CrMo, 35CrMo, 20CrMnTi, 30CrMnTi, 20MnVB, 20MnTiB, 45MnV, 20CrNiMo, Q345B, 35MnBM,40MnB,36Mn2V,	16mm-250mm	GB/T3077-1999
Spring Steel	65Mn, 60Si2Mn, 50CrVA	16mm-250mm	GB/T1222-84
Bearing Steel	GCr15, GCr15GD,55SiMoV	16mm-250mm	GB/T18254-2002
Structural steels subject to end-quench hardenability requirements	20CrMnTi, 30CrMnTi, 20Cr, 40Cr, 30CrMo, 42CrMoA, 27SiMn, 40Mn2H, 20CrNiMo, 40Mn2, q345b,35MnBM, 40MnB,45MnV.	16mm-250mm	GB/T5216-2004
Oil wells structural steel	37Mn5, 36Mn2V	16mm-250mm	Q/LYS248-2007
Marine anchor chain steel	CM490, CM690, M30Mn2	16mm-250mm	YB/T66-1987
Marine anchor chain steel	CM490, CM690, M30Mn2	16mm-250mm	GB/T18669-2002