35cd4 Alloy Structural Steel Round Bars System 1

35cd4 Alloy Structural Steel Round Bars System 2

35cd4 Alloy Structural Steel Round Bars System 3

35cd4 Alloy Structural Steel Round Bars System 4

35cd4 Alloy Structural Steel Round Bars

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Loading Port:: China main port

Payment Terms:: TT OR LC

Min Order Qty:: 50 m.t.

Supply Capability:: 10000 m.t./month

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Grade	Tensile Strength (Mpa)	Yield Strength (Mpa)	Elongation (%)	Reduction of Area (%)	Charpy Impact (J)	Hardness (HB)
35cd4	≥985	≥835	≥12	≥45	≥63	229

Grade	C	Cr	Mo	Si	Mn	P	S	Ni	Cu
35cd4	0.32-0.40	0.80-1.10	0.15-0.25	0.17-0.37	0.40-0.70	≤0.035	≤0.035	≤0.30	≤0.30

Carbon Steel Round Bar	SS400, S235JR,Q235, ASTM A36, Fe360A, Fe360B,SM400A,080A15, SS41,E235B
SAE 1020, AISI 1020, ASTM 1020, S20C, 20#, 050A20
SAE 1045, AISI 1045, ASTM 1045, S45C, 45#,EN8, XC45, XC48, 45B, C45, CK45, CM45, 060A47, R683/IC45e
Alloy Steel Round Bar	40Cr, DIN 1.7035, SAE 5140, AISI 5140, ASTM 5140, SCr440, 41Cr4, 530A40, 42Cr4, 40X, R683/VII3
SAE4140,42CrMo, 42CrMo4, DIN 1.7225, SCM440,EN19, 42CD4, 708M40, R683/II3
SAE 4340, 40CrNiMoA, EN24, SNCM439, 817M40,40XMA, R683/III4
SAE 8620,,AISI 8620, ASTM 8620, 20CrNiMo,SNCM220, 805M20
SAE52100, AISI52100,ASTM E52100, GCr15, SUJ2, 100C6, 100Cr6, 1.3505, 534A99, IIIX15

Product Name	Typical Grades	Diameter(mm)	Standard adopted
Carbon Steel	20 (1020/S20C/C22)	Ø16-Ø300	GB/SAE/JIS/DIN
40 (1040/S40C/C40)
45 (1045/S45C/C45)
Bearing Steel	GCr9 (51100/SUJ1)	Ø12-Ø250
GCr15 (52100/SUJ2/100Gr6)
GCr9SiMn (A485-Gr.1/SUJ3)
Cr-Mo Steel	20Cr (5120/SCr420H/20Cr4)	Ø12-Ø250
40Cr (5140/SCr440/41Cr4)
42CrMo(4140/SCM440/42CrMo4)
Gear Steel	20CrNiMo	Ø16-Ø600
20CrMn(5115/SMnC420/20MnCr5)
20CrNiMo(8620/SNCM220/20CrMiMo2)

Carbon Steel	Mold bottom, Plastic mold, Construction machinery parts Automobile parts, Security grills, Screens, Construction
Bearing Steel	Aerospace, Navigation, Nuclear energy, Chemical industry Electronic information, Petrochemical, Instrument and meter Transportation
Cr-Mo Steel	Mechanism & Fasteners gear, Stressed components for vehicles Engines and machines, Parts of larger cross-section
Gear Steel	All kinds of gears, Statically and dynamically stressed component for vehicles Engines and machine, Larger cross-section parts, Crankshafts

Company Information

CNBM International Corporation is the most important trading platform of CNBM group.

Whith its advantages, CNBM International are mainly concentrate on Cement, Glass, Iron and Steel, Ceramics industries and devotes herself for supplying high qulity series of refractories as well as technical consultancies and logistics solutions.

FAQ

1, Your advantages?

professional products inquiry, products knowledge train (for agents), smooth goods delivery, excellent customer solution proposale

2, Test & Certificate?

SGS test is available, customer inspection before shipping is welcome, third party inspection is no problem

3, Factory or Trading Company?

CNBM is a trading company but we have so many protocol factories and CNBM works as a trading department of these factories. Also CNBM is the holding company of many factories.

4, Payment Terms?

30% TT as deposit and 70% before delivery.

Irrevocable L/C at sight.

5, Trading Terms?

EXW, FOB, CIF, FFR, CNF

6, After-sale Service?

CNBM provides the services and support you need for every step of our cooperation. We're the business partner you can trust.

For any problem, please kindly contact us at any your convenient time.

We'll reply you in our first priority within 24 hours.

Packaging & Delivery

1, Packaging: seaworthy package or as required

2, Delivery: 35-45 days or based on quantity

Q: How to determine the welding seam height of steel plate and steel bar?: How to determine the welding seam height of steel plate and steel bar?:If the steel plate surface and steel end vertical welding, welding angle height depends on the diameter of the steel, general welding angle height is 0.7 times the diameter of reinforcement;

Q: Can steel round bars be used for shafting applications?: Indeed, shafting applications can make use of steel round bars. In industries like automotive, construction, and manufacturing, steel round bars are frequently employed as material for shafting. These bars possess impressive mechanical properties, durability, and high strength, enabling them to effectively transmit power and rotational motion in machines and equipment. Furthermore, steel round bars can be machined to precise dimensions, subjected to heat treatment for enhanced hardness, and coated to provide protection against corrosion. Moreover, they are obtainable in a variety of grades and alloys, catering to specific application requirements. In summary, due to their inherent strength and versatility, steel round bars are a dependable choice for shafting applications.

Q: What is the maximum sulfur content allowed for steel round bars?: The allowed maximum sulfur content for steel round bars can vary depending on the specific grade and specification. Generally, the control of sulfur content in steel is essential to ensure the material's quality and good machinability. For most commercial grades of steel round bars, the maximum sulfur content is typically restricted to approximately 0.05% to 0.08%. Nevertheless, it is crucial to acknowledge that specific specialized grades or applications may possess distinct limits or requirements. It is advisable to refer to the appropriate standards or specifications for the specific grade of steel round bars to ascertain the maximum allowable sulfur content.

Q: How many roots are there in a standard ton of steel and how many meters are there in a steel bar?: Generally, the length of steel bars is 6 meters, 9 meters, 12 meters, 6 meters, which is rarely seen on the construction site. A standard bundle is 2 tons.

Q: Can steel round bars be used in the manufacturing of tools and equipment?: Yes, steel round bars can be used in the manufacturing of tools and equipment. Steel is a strong and durable material that can withstand heavy loads and provide stability. Round bars can be shaped, cut, and machined into various tool components such as shafts, handles, or blades, making them suitable for a wide range of applications in the manufacturing industry.

Q: What are the advantages of using phosphorus-alloy steel round bars?: Phosphorus-alloy steel round bars offer several advantages, including increased strength, improved corrosion resistance, and enhanced machinability. The addition of phosphorus aids in strengthening the steel, making it more durable and suitable for applications that require high tensile strength. Furthermore, phosphorus-alloy steel round bars exhibit better resistance to corrosion, allowing them to withstand harsh environments and prolonging their lifespan. Additionally, the inclusion of phosphorus can enhance the machinability of the steel, making it easier to shape and work with, which is beneficial for manufacturing processes. Overall, the use of phosphorus-alloy steel round bars provides superior performance and versatility across various industries.

Q: How do you calculate the length of a steel round bar?: To calculate the length of a steel round bar, measure the distance from one end to the other using a ruler, tape measure, or any other measuring tool.

Q: Are steel round bars suitable for high-stress applications?: Yes, steel round bars are suitable for high-stress applications. Steel is known for its strength and durability, making it an ideal material for high-stress environments. Round bars, in particular, offer excellent tensile strength and can withstand heavy loads and intense pressure. They are commonly used in industries such as construction, manufacturing, and engineering, where high-stress applications require a reliable and robust material. The round shape of the bars also provides uniformity in strength, ensuring consistent performance under extreme conditions. Additionally, steel round bars can be heat-treated to further enhance their mechanical properties, making them even more suitable for high-stress applications. Overall, steel round bars are a reliable and effective choice for demanding environments that require exceptional strength and resilience.

Q: What is the difference between a seamless and a welded steel round bar?: The main difference between a seamless and a welded steel round bar lies in their manufacturing process and the resulting structural integrity. A seamless steel round bar is produced by piercing a solid billet of steel and then rolling it into a round shape. This process ensures that there are no seams or welds in the bar, resulting in a smooth and continuous surface throughout its length. The absence of a weld eliminates the potential weaknesses and vulnerabilities associated with welded joints. Seamless steel bars are typically more uniform in composition and have a higher strength-to-weight ratio due to the absence of welds. On the other hand, a welded steel round bar is created by joining multiple pieces of steel together using various welding techniques. The steel pieces are heated and fused together at the edges to form a continuous bar. While the welding process provides flexibility in terms of length and diameter options, the presence of a weld can introduce certain structural concerns. Welded joints may be prone to defects, such as porosity or inclusions, which can compromise the overall strength and integrity of the bar. However, advancements in welding technology and quality control have significantly improved the reliability of welded steel round bars. In terms of applications, seamless steel round bars are often preferred in critical industries where high strength, reliability, and resistance to corrosion are essential. These industries may include oil and gas, aerospace, and automotive sectors. Welded steel round bars, on the other hand, are commonly used in less demanding applications where cost-effectiveness and availability are primary factors, such as construction, manufacturing, and general engineering. In summary, the key differences between seamless and welded steel round bars lie in their manufacturing process and resulting structural characteristics. Seamless bars are produced without any welds, offering a smoother surface, higher strength-to-weight ratio, and greater resistance to defects. Welded bars, while more cost-effective and readily available, may have weld-related vulnerabilities that need to be considered depending on the application. Ultimately, the choice between the two depends on the specific requirements and priorities of the intended use.

Q: What are the different testing methods for steel round bars?: There are several different testing methods for steel round bars, including visual inspection, dimensional inspection, chemical composition analysis, mechanical properties testing, and non-destructive testing methods such as ultrasonic testing and magnetic particle inspection. Each of these methods helps ensure the quality and integrity of steel round bars, allowing for proper evaluation and identification of any potential defects or inconsistencies.

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