S45C Hot Rolled Round Bars
S45C Hot Rolled Round Bars
S45C Hot Rolled Round Bars
S45C Hot Rolled Round Bars
S45C Hot Rolled Round Bars

S45C Hot Rolled Round Bars

S45C is a medium carbon steel with a chemical composition of: - Carbon (C): 0.42%-0.50% - Silicon (Si): 0.15%-0.35% - Manganese (Mn): 0.60%-0.90% - Phosphorus (P): 0.030% max - Sulfur (S): 0.035% max

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Product Introduction

S45C hot rolled round bars are carbon steel bars that are commonly used in the construction industry for making machinery and equipment components. These bars have good mechanical properties and are widely used for shafts, axles, gears, and other machine parts. S45C is a medium carbon steel that has a carbon content of 0.45%, which gives the bars their high strength and toughness. These round bars are typically available in diameters ranging from 5mm to 500mm and can be customized according to customer requirements. The hot rolling process is used to give these bars their smooth surface finish and improve their dimensional accuracy.

The following are the main product specifications:

1. Diameter: 5mm~250mm

2. Length: 1000mm~6000mm

3. Surface treatment: black, galvanized, phosphating, spray painting, etc

steel plate s45c carbon steel

Standard Compare

JUTHA WAN	JIS	AISI/SAE	DIN
S45C	S45C	1045	1.119 (CK45)

1045 Chemical composition

standard	grade	C	Si	Mn	P	S	Cr
ASTM A29	1045	0.43-0.50	——	0.60-0.90	≤0.04	≤0.05	——
EN 10083-2	C45	0.42-0.50	≤0.04	0.50-0.90	≤0.03	≤0.035	≤0.4
EN 10083-2	1.1191	0.42-0.50	≤0.04	0.50-0.90	≤0.03	≤0.035	≤0.4
JIS G4051	S45C	0.42-0.48	0.15-0.35	0.60-0.90	≤0.03	≤0.035	——

1045 Physical properties

density，g/cm3	7.87
melting point°C	1495
elasticity modulus，psi	29 x 10^6
coefficient of thermal expansion，68-212˚F，/˚F	6.39 x 10^-6
heat conductivity，Btu/ft hr ˚F	30
specific heat，Btu/lb ˚F	0.116
Resistivity, microohms	6.42

1045 Mechanical properties

sectional dimension mm	≤ 16	17 – 40	41 – 100
strength of extension Mpa	700-850	6500-800	630-780
yield strength Mpa	≥ 500	≥430	≥ 370
50mm elongation %	≥ 14	≥ 16	≥ 17
Impact charpy J	≥ 30	≥ 30	≥ 30
hardness HB	210-245	195-235	185-230

Note: 820 water quenched ØC -850 øC or oil quenched at 830 °C-860°C and tempered between 540 °C- 680 °C

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