Alloy Steel Round Bars 42CrMo4

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Loading Port:: Shanghai

Payment Terms:: TT OR LC

Min Order Qty:: 30 m.t.

Supply Capability:: 120000 m.t./month

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GB	DIN	AISI	JIS
42CrMo	1.7225	4140	SCM440

C	Si	Mn	Cr	Mo	P	S
0.38-0.43	0.40max	0.60-0.90	0.90-1.20	0.15-0.30	≤0.035	≤0.035

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 are steel round bars classified based on their shape?: Steel round bars can be categorized into two main groups, namely hot-rolled round bars and cold-drawn round bars, depending on their shape. Hot-rolled round bars are produced by heating a steel billet until it becomes malleable and then passing it through a series of rollers to achieve the desired shape. This manufacturing process results in a rougher surface texture and a slightly larger diameter when compared to cold-drawn round bars. Hot-rolled round bars find common usage in construction, engineering, and manufacturing applications where strength and durability play a crucial role. On the other hand, cold-drawn round bars are manufactured by pulling a hot-rolled round bar through a series of dies at room temperature. This process enhances the dimensional accuracy, surface finish, and mechanical properties of the steel. Cold-drawn round bars possess a smoother surface texture and a more precise diameter, making them suitable for applications that demand tight tolerances, such as precision machining, automotive components, and machinery shafts. In conclusion, the classification of steel round bars, based on their shape, is determined by the specific manufacturing process employed. Hot-rolled round bars exhibit rougher surfaces and slightly larger diameters, while cold-drawn round bars boast smoother surfaces and more precise dimensions. The choice between these two categories depends on the specific requirements of the given application.

Q:Can steel round bars be used for making universal joints?: Yes, steel round bars can be used for making universal joints. Steel round bars are commonly used in the manufacturing of universal joints due to their strength, durability, and ability to handle high torque and rotational forces.

Q:How strong are steel round bars compared to other materials?: Steel round bars, renowned for their exceptional strength and durability, are widely recognized as one of the toughest materials available. In comparison to aluminum, brass, and wood, steel round bars boast a significantly higher tensile strength, referring to their capacity to withstand pulling forces without succumbing to breakage. Moreover, steel round bars are capable of handling higher compressive loads, rendering them highly suitable for applications involving substantial pressure or heavy loads. Not only do steel round bars exhibit remarkable strength, but they also showcase excellent ductility, allowing for easy shaping and bending without any risk of fracture. This remarkable feature grants steel round bars versatility, which explains their extensive utilization in diverse industries such as construction, automotive, manufacturing, and aerospace. While other materials possess their own distinctive properties and applications, steel round bars consistently remain the preferred choice in terms of strength and reliability. Their ability to endure high loads, resist deformation, and maintain structural integrity positions them as a favored option for structural components, shafts, axles, and various other demanding applications.

Q:What is the difference between common wire and high-speed wire?: Round steel and other steel (wire line, PU) difference: 1 is not the same, round shape light round, no pattern without ribs, other steel surface appearance is engraved or ribbed, cohesive force that cause steel and concrete, and the bond strength of steel and concrete in the other. 2 ingredients are different, round steel (grade a steel) belongs to ordinary low carbon steel, and other steel bars are mostly alloy steel. 3 strength, steel and other steel with high strength low strength, namely, diameter of the same size as compared with other steel, round steel can bear the pulling force than other reinforced small, but the plastic steel reinforced bar is stronger than the other, there is a large deformation in the break before, and it reinforced the deformation the break before the much smaller.

Q:Can steel round bars be used in the hospitality industry?: Certainly! Steel round bars are indeed applicable in the hospitality field. Possessing versatility and durability, they are well-suited for a variety of purposes within this industry. These bars can be employed in the construction of furniture items like chairs, tables, and bar stools, as well as in the creation of decorative elements such as railings, light fixtures, and signage. Moreover, steel round bars offer exceptional strength and stability, thus ensuring the safety of both guests and staff members. Furthermore, they can be easily customized to align with the preferred aesthetic and design choices of different hospitality establishments. All in all, steel round bars prove to be a dependable and pragmatic option for the hospitality industry, thanks to their robustness, versatility, and visual appeal.

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:Can steel round bars be used in the manufacturing of bearings?: No, steel round bars are not typically used in the manufacturing of bearings. Bearings require materials that have specific characteristics such as high strength, hardness, and wear resistance. Steel round bars may not possess these properties in the required magnitude. Instead, bearings are typically made from high-quality steel alloys specifically designed for bearing applications, such as bearing steel or stainless steel. These materials undergo specialized heat treatment processes to achieve the desired properties necessary for bearing manufacturing, including high load-carrying capacity, low friction, and long-lasting durability.

Q:Can steel round bars be used for making storage tanks?: Storage tanks can indeed be made using steel round bars. Steel is a highly versatile material that is extensively used across various industries, including the manufacturing of storage tanks. The utilization of steel round bars is renowned for their exceptional strength, durability, and resistance to corrosion, rendering them suitable for the storage of a wide array of substances, such as liquids and gases. The circular shape of these bars enables effortless fabrication and assembly, thereby guaranteeing the structural integrity of the storage tank. Moreover, steel round bars can be effortlessly welded or bolted together, allowing for customization and flexibility in tank design. In summary, due to their reliability, longevity, and capacity to endure high pressure and extreme environmental conditions, steel round bars are a favored option for the production of storage tanks.

Q:What is the thermal conductivity of a steel round bar?: The thermal conductivity of a steel round bar typically ranges from 15 to 50 W/m*K, depending on the specific grade and composition of the steel.

Q:How many positive and negative tolerances are allowed for round steel GB?: Because of the deviation of cold rolled steel plate and hot rolled steel plate is not the same as the.5mm hot rolling strip is usually made of steel plate shear, the thickness deviation according to the different width and different. But the minimum of plus or minus 0.19, the highest of plus or minus 0.29 this standard applies to the diameter of 5.5mm ~ 250mm hot rolled round and length of hot-rolled square steel 5.5mm ~ 200mm.

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