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The main chemical element Carbon which is in the range of 0.12–2.0% is defined as Carbon steel.It only allows other elements which are manganese (1.65% max), silicon (0.60% max), and copper (0.60% max).Other elements may be present in quantities too small to affect its properties.Steel with a low carbon content has the same properties as iron, soft but easily formed. As carbon content rises the metal becomes harder and stronger by heat treatment, but less ductile and more difficult to weld. Higher carbon content lowers steel’s melting point and its temperature resistance in general.

SAE 1045 Forged round steel
Form of SupplySize(mm)Length(mm)
Round barΦ6-Φ1,0003,000-10,000
Square bar100x100-600x6003,000-6,000
Plate/SheetThickness :20-400
Width:80-1,000		2,000-6,000
Flat bar/BlcoksThickness :120-800
Width:120-1,500		2,000-6,000

process route

1.ASTM A29/A29M:Standard Specification for General Requirements for Steel Bars, Carbon and Alloy, Hot-Wrought

2.EN10083-2:Steels for quenching and tempering,Part 2:Technical delivery conditions for non alloy steels

3.EN10084:case hardening steels -Technical delivery conditions

4.EN10250-2:Open die steel forgings for general engineering purposes-Part 2:non alloy quality and special steels

5.BS970-3:Wrought steel for mechanical and allied engineering purposes-Part 3:Bright bars for general engineering purposes

6.JIS G4051:Carbon steels for machine structural use

7.AS1442:Carbon steels and carbon manganese steels-hot rolled bars and semifinished products

CARBON STEEL GRADE LIST

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AISI/SAEDIN/ENBSJIS/KS
1015C15 / 1.0401080M15S15C
1018S17C
1020C22 / 1.0402070M20 / EN3S20C
1025C25 / 1.0406070M26S25C
1030C30 / 1.0528080M32 / EN5S30C
1035C35 / 1.0501070M36S35C
1040C40 / 1.0511080M40/EN8S40C
1045C45/1.0503080M46 S45C
1050C50 / 1.0540080M50S50C
1055C55 / 1.0535070M55/EN9 S55C
1060C60/1.1221 070M60S58C