We are committed to providing one-stop service for steel pipe products to customers around the world.
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 |
|
Great Britain |
BS970 – Part 3 – 1991 080A47 |
|
Japan |
JIS G 4051 S45C |
|
USA |
AISI C1045 |
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 |
