Basic Info.
Product Description
Steel C45 Round Bar is an unalloyed medium carbon steel, which is also a general carbon engineering steel. C45 is a medium strength steel with good machinability and excellent tensile properties. C45 round steel is generally supplied in the black hot rolled or occasionally in the normalised condition, with a typical tensile strength range 570 - 700 Mpa and Brinell hardness range 170 - 210 in either condition. It does not however respond satisfactorily to nitriding due to a lack of suitable alloying elements.
C45 round bar steel is equivalent to EN8 or 080M40. Steel C45 bar or plate is suitable for the manufacture of parts such as gears, bolts, general-purpose axles and shafts, keys and studs.
Common C45 Steel Specifications
Country | USA | British | Japan | Australia |
Standard | ASTM A29 | EN 10083-2 | JIS G4051 | AS 1442 |
Grades | 1045 | C45/1.1191 | S45C | 1045 |
C45 Round Bar Steel Chemical Composition Properties
Standard | Grade | C | Mn | P | S | Si | Ni | Cr |
ASTM A29 | 1045 | 0.43-0.50 | 0.60-0.90 | 0.04 | 0.050 | |||
EN 10083-2 | C45/1.1191 | 0.42-0.50 | 0.50-0.80 | 0.03 | 0.035 | 0.4 | 0.4 | 0.4 |
JIS G4051 | S45C | 0.42-0.48 | 0.60-0.90 | 0.03 | 0.035 | 0.15-0.35 |
Mechanical Properties in Quenched+Tempered Condition
Diameter d (mm) | Thickness t (mm) | 0.2 % proof stress (N/mm2) | Tensile strength (N/mm2) | Elongation A5 (%) | Reduction Z (%) |
<16 | <8 | min. 490 | 700-850 | min. 14 | min. 35 |
<17-40 | <8<=20 | min. 430 | 650-800 | min. 16 | min. 40 |
<41-100 | <20<=60 | min. 370 | 630-780 | min. 17 | min. 45 |
- Mechanical Properties in Normalized Condition
Diameter d (mm) | Thickness t (mm) | 0.2 % proof stress (N/mm2) | Tensile strength (N/mm2) | Elongation A5(%) | |
<16 | <16 | min. 390 | min. 620 | min. 14 | |
<17-100 | <16<=100 | min. 305 | min. 305 | min. 16 | |
<101-250 | <100<250 | min. 275 | min. 560 | min. 16 |
Available supply
- C45 Steel Round Bar: diameter 8mm - 3000mm
- C45 Steel Plate: thickness 10mm - 1500mm x width 200mm - 3000mm
- C45 Steel Flat Bar: 200mm - 1000mm
- Square C45 Steel: 20mm-800mm
- Hexagon Steel.
Surface Finish: Black, Rough Machined, Turned or as per customer's desire .
![S45c C45 1045 En8 Cold Drawn Hot Rolled Forged Round Bar](http://img6.grofrom.com/www.hafoysteelgroup.com/226f3j00QoaivVFMCtqN/S45c-C45-1045-En8-Cold-Drawn-Hot-Rolled-Forged-Round-Bar.webp)
![S45c C45 1045 En8 Cold Drawn Hot Rolled Forged Round Bar](http://img6.grofrom.com/www.hafoysteelgroup.com/226f3j00QqEWBvynETbN/S45c-C45-1045-En8-Cold-Drawn-Hot-Rolled-Forged-Round-Bar.webp)
![S45c C45 1045 En8 Cold Drawn Hot Rolled Forged Round Bar](http://img6.grofrom.com/www.hafoysteelgroup.com/226f3j00QqtiCFOWnacN/S45c-C45-1045-En8-Cold-Drawn-Hot-Rolled-Forged-Round-Bar.webp)
![S45c C45 1045 En8 Cold Drawn Hot Rolled Forged Round Bar](http://img6.grofrom.com/www.hafoysteelgroup.com/226f3j00YkQWMEOCHTon/S45c-C45-1045-En8-Cold-Drawn-Hot-Rolled-Forged-Round-Bar.webp)
![S45c C45 1045 En8 Cold Drawn Hot Rolled Forged Round Bar](http://img6.grofrom.com/www.hafoysteelgroup.com/226f3j00YoaWCzFIgTcN/S45c-C45-1045-En8-Cold-Drawn-Hot-Rolled-Forged-Round-Bar.webp)
![S45c C45 1045 En8 Cold Drawn Hot Rolled Forged Round Bar](http://img6.grofrom.com/www.hafoysteelgroup.com/226f3j00UoEVehncCaqF/S45c-C45-1045-En8-Cold-Drawn-Hot-Rolled-Forged-Round-Bar.webp)