C45, S45C Steel Round Bar: Specifications, Composition, Latest Pricing

With the continuous development of the construction and mechanical industries, steel materials have become a familiar aspect of our daily lives. One of the prominent material types we would like to discuss today is the C45 steel round bar. We invite everyone to explore more detailed information through the following article.

What is the C45 steel round bar?

C45 steel round bar, or commonly known as smooth round steel, is a type of high-carbon alloy with a carbon content of up to 0.45%. Moreover, this product contains various alloying elements such as silicon, sulfur, manganese, chromium, etc. These elements enhance its hardness and ductility, making it highly suitable for mold fabrication.

Due to these inherent advantages, this product is particularly well-suited for applications in the mechanical engineering industry, especially in the manufacturing of machinery, where components need to endure high loads and withstand significant impacts.

The designation “C45” can be explained as follows: The letter “C” signifies carbon as an element in the steel, while the number “45” denotes the carbon content, which is 0.45%.

C45 steel composition

The composition present in steel is one of the significant factors that greatly influence the quality of smooth round steel. Therefore, steel manufacturing workers must strictly adhere to the element content levels to ensure the utmost quality of the final product. The following is a compilation of the chemical composition present in C45 steel round bar:

Grade	Percentage of chemical elements %
	carbon	silicon	manganese	phosphorus		sulfur	chromium		nickel
				No more than
C45	0.42 – 0.50	0.16 – 0.36	0.50 – 0.80	0.040	0.040			0.25		0.25

C45 steel grade

According to the TCVN 1766-75 standard, C45 steel round bar is a high-quality steel in terms of its structure, durability, suitable tensile strength, and appropriate level of ductility.

The C45 steel grade is known as one of the steel grades widely used in the fields of mechanical engineering and construction. It is commonly used to produce threaded rods, pulleys, bolts, and screws. The manganese content in the steel contributes to its excellent oxidation resistance, prevents the formation of iron sulfide, and helps prevent brittleness.

Hardness and mechanical properties of C45 steel

Under normal temperature conditions, the hardness of C45 steel typically falls around 23 HRC. This is considered a relatively high level of hardness for C45 steel.

Manufacturers often employ various heat treatment methods to enhance the hardness of this type of steel. Depending on the desired hardness level, they can use methods such as oil quenching, high-frequency induction hardening, or water quenching. After undergoing the heat treatment process, the hardness of C45 steel can be increased to around 50 HRC.

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C45 steel mechanical properties

Chỉ số cấp bền của thép C45

Steel grade	Standard	Breaking strength σb (Mpa)	Breaking strength σc (Mpa)	Relative elongation δ (%)	HRC Hardness
C45	TCVN 1766-75	610	360	16	23

Mechanical properties

Steel grade	Yield strength (sch)	Tensile strength (sb)			Relative elongation (d5)	Reduction of area (y)	Impact toughness, kG (m/cm2)	Hardness no heat treatment(HB)	Annealed steel (HB)
	kG/mm2				%
	No less than
C45	36		61	16		40	5	≤ 229	≤ 197

Applications and advantages of C45 steel round bar

Being one of the commonly used materials with numerous advantages, C45 steel is applied in various fields. Specifically:

Applications of C45 steel

In the field of mechanical engineering, due to its hardness and good strength, C45 steel is used to manufacture machine components that require high load-bearing capacity, such as gears, bolts, moving parts, parts subjected to hot extrusion or piston rods. C45 steel is also suitable for manufacturing mold casings, screws, and blades.

In the construction industry, C45 steel is widely used for constructing bridges and steel frames due to its high strength characteristics.

What are the advantages of C45 steel?

With a tensile strength of 570-690 MPa, solid round C45 steel possesses excellent resistance to wear and oxidation. It also has the ability to withstand high loads and exhibit exceptional elasticity due to its high tensile strength and large yield limit.

Due to its tensile strength of 570-690 MPa, C45 steel is highly resistant to wear and has good load-bearing capacity. It can withstand strong impacts as well.

The high tensile strength of C45 steel makes it easy to heat treat, use for molds, and manufacture machine components. Especially noteworthy is its relatively lower cost compared to some other steel products on the market.

Latest specifications for C45 steel round bar

Refer to the provided specifications table for more details.

No	Product name	Length	Weight
		(m)	(Kg)
1	Thép tròn đặc S45C Ø12 x 6m	6	5,7
2	Thép tròn đặc S45C Ø14 × 6m	6	7,6
3	Thép tròn đặc S45C Ø16 x 6m	6	9,8
4	Thép tròn đặc S45C Ø18 x 6m	6	12,2
5	Thép tròn đặc S45C Ø20 x 6m	6	15,5
6	Thép tròn đặc S45C Ø22 x 6m	6	18,5
7	Thép tròn đặc S45C Ø24 x 6m	6	21,7
8	Thép tròn đặc S45C Ø25 x 6m	6	23,5
9	Thép tròn đặc S45C Ø28 x 6m	6	29,5
10	Thép tròn đặc S45C Ø30 x 6m	6	33,7
11	Thép tròn đặc S45C Ø35 x 6m	6	46
12	Thép tròn đặc S45C Ø36 x 6m	6	48,5
13	Thép tròn đặc S45C Ø40 x 6m	6	60,01
14	Thép tròn đặc S45C Ø42 x 6m	6	66
15	Thép tròn đặc S45C Ø45 x 6m	6	75,5
16	Thép tròn đặc S45C Ø50 x 6m	6	92,4
17	Thép tròn đặc S45C Ø55 x 6m	6	113
18	Thép tròn đặc S45C Ø60 x 6m	6	135
19	Thép tròn đặc S45C Ø65 x 6m	6	158,9
20	Thép tròn đặc S45C Ø70 x 6m	6	183
21	Thép tròn đặc S45C Ø75 x 6m	6	211,01
22	Thép tròn đặc S45C Ø80 x 6m	6	237,8
23	Thép tròn đặc S45C Ø85 x 6m	6	273
24	Thép tròn đặc S45C Ø90 x 6m	6	297,6
25	Thép tròn đặc S45C Ø95 x 6m	6	334,1
26	Thép tròn đặc S45C Ø100 x 6m	6	375
27	Thép tròn đặc S45C Ø110 x 6m	6	450,01
28	Thép tròn đặc S45C Ø120 x 6m	6	525,6
29	Thép tròn đặc S45C Ø130 x 6m	6	637
30	Thép tròn đặc S45C Ø140 x 6m	6	725
31	Thép tròn đặc S45C Ø150 x 6m	6	832,32
32	Thép tròn đặc S45C Ø180	6	1.198,56
33	Thép tròn đặc S45C Ø200	6	1.480,8
34	Thép tròn đặc S45C Ø230 -Ø300

Latest steel round bar quotation

Product name	Specification (Diameter(mm))			Length		Price (VAT included)
C45 steel round bar	Ø 16 mm			6000 mm		21,500
C45 steel round bar	Ø 18 mm			6000 mm		21,500
C45 steel round bar	Ø 20 mm			6000 mm		21,000
C45 steel round bar	Ø 22 mm			6000 mm		21,000
C45 steel round bar	Ø 25 mm			6000 mm		21,000
C45 steel round bar	Ø 26 mm			6000 mm		21,000
C45 steel round bar	Ø 28 mm			6000 mm		21,000
C45 steel round bar	Ø 30 mm			6000 mm		21,000
C45 steel round bar	Ø 32 mm			6000 mm		21,000
C45 steel round bar	Ø 35 mm			6000 mm		21,000
C45 steel round bar	Ø 36 mm			6000 mm		21,000
C45 steel round bar	Ø 38 mm			6000 mm		21,000
C45 steel round bar	Ø 40 mm			6000 mm		21,000
C45 steel round bar	Ø 42 mm			6000 mm		21,000
C45 steel round bar	Ø 45 mm			6000 mm		21,000
C45 steel round bar	Ø 46 mm			6000 mm		21,000
C45 steel round bar	Ø 48 mm			6000 mm		21,000
C45 steel round bar	Ø 50 mm			6000 mm		21,000
C45 steel round bar	Ø 52 mm			6000 mm		21,000
C45 steel round bar	Ø 55 mm			6000 mm		21,000
C45 steel round bar	Ø 56 mm			6000 mm		21,000
C45 steel round bar	Ø 58 mm			6000 mm		21,000
C45 steel round bar	Ø 60 mm			6000 mm		21,000
C45 steel round bar	Ø 62 mm			6000 mm		21,000
C45 steel round bar	Ø 65 mm			6000 mm		21,000
C45 steel round bar	Ø 70 mm			6000 mm		21,000
C45 steel round bar	Ø 75 mm			6000 mm		21,000
C45 steel round bar	Ø 80 mm			6000 mm		21,000
C45 steel round bar	Ø 85 mm			6000 mm		21,000
C45 steel round bar	Ø 90 mm			6000 mm		21,000
C45 steel round bar	Ø 95 mm			6000 mm		21,000
C45 steel round bar	Ø 100 mm			6000 mm		21,000
C45 steel round bar	Ø 105 mm			6000 mm		21,000
C45 steel round bar	Ø 110 mm			6000 mm		21,000
C45 steel round bar	Ø 115 mm			6000 mm		21,000
C45 steel round bar	Ø 120 mm			6000 mm		21,000
C45 steel round bar	Ø 125 mm			6000 mm		21,000
C45 steel round bar	Ø 130 mm			6000 mm		21,000
C45 steel round bar	Ø 135 mm			6000 mm		21,000
C45 steel round bar	Ø 140 mm			6000 mm		21,000
C45 steel round bar	Ø 145 mm			6000 mm		21,000
C45 steel round bar	Ø 150 mm			6000 mm		21,000
C45 steel round bar	Ø 155 mm			6000 mm		21,000
C45 steel round bar	Ø 160 mm			6000 mm		21,000
C45 steel round bar	Ø 165 mm			6000 mm		21,000
C45 steel round bar	Ø 180 mm			6000 mm		21,000
C45 steel round bar	Ø 200 mm			6000 mm		21,500
C45 steel round bar	Ø 210 mm			6000 mm		21,500
C45 steel round bar	Ø 220 mm			6000 mm		21,500
C45 steel round bar	Ø 230 mm			6000 mm		21,500
C45 steel round bar	Ø 240 mm			6000 mm		21,500
C45 steel round bar		Ø 250 mm	6000 mm		21,500
C45 steel round bar		Ø 280 mm	6000 mm		21,500
C45 steel round bar		Ø 300 mm	6000 mm		22,000
C45 steel round bar		Ø 310 mm	6000 mm		22,000
C45 steel round bar		Ø 320 mm	6000 mm		22,000
C45 steel round bar		Ø 330 mm	6000 mm		22,000
C45 steel round bar		Ø 340 mm	6000 mm		22,000
C45 steel round bar		Ø 350 mm	6000 mm		22,000
C45 steel round bar		Ø 360 mm	6000 mm		22,000
C45 steel round bar		Ø 380 mm	6000 mm		22,000
C45 steel round bar		Ø 400 mm	6000 mm		22,000
C45 steel round bar		Ø 410 mm	6000 mm		22,000
C45 steel round bar		Ø 420 mm	6000 mm		22,000
C45 steel round bar		Ø 430 mm	6000 mm		22,000
C45 steel round bar		Ø 450 mm	6000 mm		22,000
C45 steel round bar		Ø 460 mm	6000 mm		22,000
C45 steel round bar		Ø 480 mm	6000 mm		22,000
C45 steel round bar		Ø 500 mm	6000 mm		22,000

Notes: The price table for solid round C45 steel provided above is for reference only. Prices may vary based on order quantity, purchase timing, or market price fluctuations. Please contact our Hotline at (+84)2471001868/(+84)975271499 to get the best price.

Reliable C45 steel round bar suppliers

Stavian Industrial Metal takes great pride in being a reputable supplier of a wide range of iron and steel products, including reliable C45 steel round bar with the best quality in the market.

Our mission is to provide customers with the finest products based on cutting-edge scientific and technical knowledge, offering professional services and competitive prices.

The Stavian Industrial Metal brand boasts a team of highly-trained professionals who are enthusiastic about their work. With a vast warehousing system and a flexible transportation fleet, we ensure rapid deliveries to various locations, meeting the quantity and quality requirements.

With over a decade of experience in the field, our company consistently strives to enhance and uphold an absolute reputation, securing the utmost benefits for our customers.

If you are in search of C45 steel round bar, please feel free to contact Stavian Industrial Metal directly for detailed consultation.

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