1).Composition:
| Steel Grade | chemical composition | |||||||
| C | Si | Mn | S | P | Cr | Ni | Cu | |
| 10# | 0.07%-0.13% | 0.17%-0.37% | 0.35%-0.65% | ≤0.035% | ≤0.035% | ≤0.15% | ≤0.25% | ≤0.25% |
| 20# | 0.17%-0.23% | 0.17%-0.37% | 0.35%-0.65% | ≤0.035% | ≤0.035% | ≤0.25% | ≤0.30% | ≤0.25% |
| 45# | 0.42%-0.50% | 0.17%-0.37% | 0.50%-0.80% | ≤0.035% | ≤0.035% | ≤0.25% | ≤0.30% | ≤0.25% |
| 65Mn | 0.62%-0.70% | 0.17%-0.37% | 0.35%-0.65% | ≤0.035% | ≤0.035% | ≤0.25% | ≤0.30% | ≤0.25% |
2). Diameters:6-400mm
Length:1-12m or as required
3). Application of Carbon Structural Steel:
With its excellent mechanical properties and processing characteristics, high-quality carbon structural steel is mainly used in the
fields of machinery manufacturing, construction engineering, and transport, specifically including the manufacture of cold pressed
parts, welded containers, shaft parts, springs and bridge components.
4).Special Steel Round Bar
| Grade | Spec | Dimension | Steel Grade | Application industry | |
| Special Steel Round Bar | Quality carbon structural steel | GB/T699 JIS G 4051 ASTM A29 SAE,EN10083 (Others) | 12-260 | 10# ,20#,45#, 65Mn,SAE1080,S45C,etc | For Manufacturing of All Kinds of Bearing Parts, Connecting Rod. Rigging Metal Tools etc. |
| Low alloy high-strength steel | GB/T1591,(Others) | 13-260 | Q355 series,Q460C,etc | Mechanical,Car,Engineering machinery | |
| Alloy structural steel | GB/T3077,JIS,ASTM A29, EN10083,(Others) | 13-260 | 20Mn2-45Mn2,25MnV,27SiMn-42SiMn,20Cr-40Cr,12CrMo-42CrMo,20CrMn,40CrMn,SCr420,SCr440,SCM420,SCM440,41Cr4,20CrMoA,30CrMoA,20Cr2MoA,20CrNiMo,20Cr2Ni4A,SAE4340,20Cr2Ni4A,30CrMnSiA etc | Mechanical,Car,Bridge,Petrochemical industry | |
| Bearing steel | GB/T18254,(Others) | 14-200/5-25 wire rod and cold drawn wire | GCr15,GCr15SiMn,C&U1,C&U2,GCr15-JN,SCP52100,SCPSS52100,GCr15S700,100CrMn6,SUJ2,SUJ2S1,SAE1055,S55C,G20CrNiMoA(SAE8620),GCr15etc | Mechanical ,Car ,Electric machinery,Engineering machinery etc | |
| Spring Steel | GB/T1222,JIS,SAE,EN,(Others) | 13-120 | 60Si2MnA,60Si2CrA,60Si2CrVA,55CrMnA,50CrVA,SUP9, SUP9A ,SUP11A, 55Cr3 ,51CrV4 ,52CrMoV4 ,SAE5160 SAE6150 ,SAE9254, 60SiCrVAT, 52CrMoV4 ,55SiCr etc | Car,High Speed railway,Locomotive | |
| Round billet | 300mm-600mm ( According to the different requirement) | ||||
| Large section bar | 80mm-350mm ( According to the different requirement) | ||||
| Forging | 180mm-1500mm ( According to the different requirement) |
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1.What is a round bar used for?
Round bars are used in applications that require precision machining, such as motor shafts, fasteners, gear pins, and load-bearing rods. Their uniform shape makes them ideal for rotating parts or CNC machining.
2.What is the difference between a round bar and a rod?
Round bars range from 1/8 to 6 inches in diameter, while rods are finer, from 1/16 inches to 1 inch. Each metal has different uses and requires specific crafting techniques, resulting in varying sizes.
3.How strong is a round bar?
Round Bars: Round bars handle compressive loads very well because their shape helps distribute stress evenly. This makes them especially good for applications where the pressure is centred, as it helps them resist bending or deforming under heavy loads.
4.What is the purpose of a bar?
A bar is a retail business where alcoholic drinks and sometimes food is served. A defining characteristic is the possession of a liquor license, which is a permit from the government to sell alcoholic beverages to the public.
5.How do rounds at a bar work?
A round of drinks is a set of alcoholic beverages purchased by one person in a group for that complete group. The purchaser buys the round of drinks as a single order at the bar. In many places it is customary for people to take turns buying rounds.