Carbon Structural Steel Round Bars SAE1020CR

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400 m.t.
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120000 m.t./month

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Product Description:

 Carbon Structural Steel Round Bars SAE1020CR


1, can be used to produce various types of rivet, bolts and welding structural parts.

2, can be used to produce seamless pipes, mold, steel plate, U-steel and joist steel



1, high quality with competitive price

2, certifictes are available

3, heat treatment specification: tempering, 910 ℃, air cooling



Carbon Structural Steel Round Bars SAE1020CR



1, Chemical Composition %


2, Mechanical Properties 

Strength of Extension σbYield Strength  σsElogation δ5

Reduction of Area ψ

Hardness (no heat treatment)
≥410(42) Mpa≥245(25) Mpa≥25 %≥55 %≤156HB



Carbon Structural Steel Round Bars SAE1020CR

Carbon Structural Steel Round Bars SAE1020CR


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Q:What is the tensile strength of round steel bars of diameter 28?
Round steel is a solid strip of steel whose cross section is round. Its specifications are expressed in diameter, in units of millimeters (mm), such as "50mm", which means a diameter of 50 millimeters of round steel.
Q:The two project is to use rebar or rebar?
Of course, depends on what steel is used for components, such as the two structure of the structure column, and other minor parts, it does not matter. Suggest a slightly larger span of the floor, do not use round steel bar, or the use of thread steel bar, and then with anti crack steel.
Q:What is the difference between 40Cr round steel and 40Cr steel forgings?
The casting process constructed a fine grain structure and improved the physical properties of the metal. The utility model has the advantages of high strength and good plasticity, and is suitable for making important parts with large force and high requirement.The properties of forgings are superior to those of ordinary ones.
Q:What's the difference between a round tube and a round tube?
Round steel is solid and round tubes are hollow
Q:What's the difference between round steel and other steel bars?
The composition is different, round steel (grade a steel) belongs to ordinary low carbon steel, other steel bars are alloy steel
Q:4145H round steel is equivalent to the domestic brand?
4145H is round steel, oil drilling steel, domestic steel, Xingcheng Special Steel, steel and other steel mills have production in the Great Wall. The industry commonly used 42CrMo instead.
Q:What is the difference between a circle and round steel continuous casting
Round steel drawn from a continuous casting is called a round billet; the rolled round steel is called a bar.
Q:What kind of nuts do you need for round 20 rounds?
The nut is connected to mechanical equipment parts, through the inside of the thread, the same specifications of nuts and bolts to connect together, such as M4-P0.7 and M4-P0.7 only bolt nut series connection (nut, M4 nut diameter is about 4mm, 0.7 fingers between the two thread distance of 0.7mm); US made products as well, such as screw nut only with the 1/4-20 1/4-20's collocation (1/4 refers to the nut inner diameter is about 0.25 inches, 20 inches each, 20 teeth).Self locking nut, lock nut, locking nut, four claw nut, the nut is screwed into the nut, screw rod nut insurance connecting nut cap nut six self-locking angle of anchor bolt with nut, six special angle crown thin nut eyenut.
Q:Can the same grade steel instead of round bar be ok?
Physical and mechanical properties are different. Because of the different chemical composition and strength of reinforcing steel, they are different in physical and mechanical properties. The cold bending property of steel is good, can make the hook 180, screw steel can only make straight hook 90 degrees; steel weldability is good, with ordinary carbon steel electrode can be used to low alloy electrode; anti fatigue performance and toughness in steel bar is good.
Q:Use of stainless steel round bar?
Stainless steel round bar has a broad application prospect, and is widely used in hardware, kitchenware, shipbuilding, petrochemical, machinery, medicine, food, electricity, energy, aerospace and other architectural decoration. Equipment, chemicals, dyes, paper making, oxalic acid, fertilizer, etc.; equipment for photography, food industry, coastal areas, ropes, CD poles, bolts, nuts, etc..

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