1.Specification of  carbon steel sae 1045 steel round bars

       Round bar 

Diameter(mm)

Length (mm)

100~300

2000~5800

         Plate

Thickness(mm)  

Width (mm)       

Length (mm)    

20~70

105~610

2000~5800

The specification can be customised!

2.Chemical compositon of  carbon steel sae 1045 steel round bars

NO.

C

Mn

Si

Cr

W

V

P

S

din1.1191

0.43~0.50

0.60~0.90

0.15~0.35

--

--

--

≤0.030

≤0.030

3.Delivery condition 

Standard Number

   Forging

      Annealing 

Hardening and Tempering 

1045/S45C/1.1191

1100~850

Subcritical annealing: 650~700

Isothermal annealing: 820~860

Hardening :820~860

Tempering: 550~660

4.Heat treatment 

1.Quench:1000-1040`C via 600`C and 850`C, preheating oil or wind cooling

2.Temper temperature should be higher than working temperature in order to stabilize the working size of mold

3.Heat up to 650°C of average temperature in order to eliminate the machined stress, 500  °c air cooling after electric cooker cooling

4.Tempering, 800-850  °c ,slow cooling after diathermia

5. Melting Process of SKD61 steel rod 

1.EAF: Electric Furnace+LF+VD(Optional)

5.Characteristic of carbon steel sae 1045 steel round bars

Nice machanical porpertys and worse  hardenability,so, it is used for machine parts

6.Application of carbon steel sae 1045 steel round bars  

(1)Can be made into mould template, mortise pin, column

(2)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.

(3)This kind of steel is the most common blanks and materials of shaft parts.

Hot work tool steel

DIN

1.2344,1.2343,1.2365,1.2581,1.2367,1.2713 etc.

AISI

H13,H11,H10,H21, etc.

JIS

SKD61,SKD6,SKD5,SKT4 etc.

Cold work tool steel

DIN

1.2601,1.2379,1.2080,1.2363,1.2842,1.2419,1.2510,1.2550,1.2767 etc.

AISI

D2,D3,D5,D6,D8,A2,O2,O1 etc.

JIS

SKD1,SKD11, SKS3 etc.

Plastic mould steel

DIN

1.2083,1.2311, 1.2316,1.2738 etc.

AISI

P20, P20+Ni, 420 etc.

JIS

NAK80

High speed tool steel

DIN

1.3355,1.3343

AISI

T1,M2,M35,M42

JIS

SKH2,SKH51

Structural alloy steel

DIN

1.7225,1.6511,1.7035,1.7220

AISI

4,140,434,051,404,130

JIS

SCM440