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AISI 1045 Carbon Steel

Category : Special Steel

Product Name: AISI 1045 Carbon Steel

Size:

Rolled: Diameter 40-200mm

Forged: Diameter 80-600mm

  • Description
  • Specification
  • Standard
  • Process
  • Packing

AISI 1045 steel is characterized by good weldability, good machinability, and high strength and impact properties in either the normalized or hot-rolled condition.

AISI 1045 steel has a low through-hardening capability with only sections of around 60 mm in size being recommended as suitable for tempering and through-hardening. However, it can be efficiently flame- or induction-hardened in the normalized or hot rolled condition to obtain surface hardnesses in the range of Rc 54 – Rc 60 based on factors such as section size, type of set up, quenching medium used etc.

 

Chemical Composition

Element

Content

Carbon, C

0.420 – 0.50 %

Iron, Fe

98.51 – 98.98 %

Manganese, Mn

0.60 – 0.90 %

Phosphorous, P

≤ 0.040 %

Sulfur, S

≤ 0.050 %

 

Related Specifications

Australia

AS 1442 – 1992 1045

Germany

W.Nr 1.0503 C45
W.Nr 1.1191 CK45

Great Britain

BS970 – Part 3 – 1991 080A47
BS970 – Part 1 – 1972 080M46
BS970 – 1955 EN43B

Japan

JIS G 4051 S45C

USA

AISI C1045
ASTM A29/A29M – 91 1045
SAE 1045
UNS G 10450


1045 steel equivalent as below:

ASTM A29/29M

C

Si

Mn

P

S

1045

0.43~0.50

/

0.60~0.90

≤0.040

≤0.050

DIN W-Nr

C

Si

Mn

P

S

1.1191/CK45

0.42~0.50

 ≤0.40

0.50~0.80

≤0.035

≤0.035

GB/T

C

Si

Mn

P

S

45

0.42~0.50

0.17~0.37

0.50~0.80

≤0.035

≤0.035

BS

C

Si

Mn

P

S

080M46

0.42~0.50

≤0.40

0.50~0.80

≤0.035

≤0.035

JIS

C

Si

Mn

P

S

S45C

0.42~0.48

0.15~0.35

0.60~0.90

≤0.030

≤0.030

 

Mechanical Properties

Mechanical Properties

Metric

Imperial

Hardness, Brinell

163

163

Hardness, Knoop (Converted from Brinell hardness)

184

184

Hardness, Rockwell B (Converted from Brinell hardness)

84

84

Hardness, Vickers (Converted from Brinell hardness)

170

170

Tensile Strength, Ultimate

565 MPa

81900 psi

Tensile Strength, Yield

310 MPa

45000 psi

Elongation at Break (in 50 mm)

16.0 %

16.0 %

Reduction of Area

40.0 %

40.0 %

Modulus of Elasticity (Typical for steel)

200 GPa

29000 ksi

Bulk Modulus (Typical for steel)

140 GPa

20300 ksi

Poissons Ratio (Typical For Steel)

0.290

0.290

Shear Modulus (Typical for steel)

80 GPa

11600 ksi


Typical Mechanical Properties – Hardened by Water Quench at 820 oC – 850 oC or oil quench at 830 oC – 860oC and Tempered Between 540 oC – 680 oC

Section Size mm

up to 16mm

17 – 40mm

41 – 100mm

Tensile Strength Mpa

Min

700

650

630

Max

850

800

780

Yield Strength Mpa

Min

500

430

370

Elongation in 50mm %

Min

14

16

17

Impact Charpy J

Average

30

30

30

Hardness HB

Min

210

195

185

Max

245

235

230


Suggested Pre-heat Temperature

Section

25mm

50mm

75mm

150mm +

oC

100

140

200

300


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