20MnCr5 Alloy Steel Round Bars SAE 5152 System 1

20MnCr5 Alloy Steel Round Bars SAE 5152 System 2

20MnCr5 Alloy Steel Round Bars SAE 5152 System 3

20MnCr5 Alloy Steel Round Bars SAE 5152 System 4

20MnCr5 Alloy Steel Round Bars SAE 5152

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Loading Port:: China main port

Payment Terms:: TT OR LC

Min Order Qty:: 30 m.t.

Supply Capability:: 10000 m.t./month

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Chemical Composition	Mechanical Properties (In Quenched & Tempered State)
C	0.17-0.22 %	Tensile strength(MPA)	≥1482
Si	≤0.25 %	Yield strength (MPA)	≥1232
Mn	1.10-1.50 %	Elongation (δ5/%)	≥13
Cr	1.00-1.30 %	Reduction in Area (ψ/%)	≥57
Ni	≤0.30 %	Impact toughness value αkv (J/cm2)	≥73
P	≤0.035 %	Hardness	≤357HB
S	≤0.035 %

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: Are steel round bars suitable for bridge construction applications?: Yes, steel round bars are commonly used in bridge construction applications. Steel round bars offer several advantages for bridge construction, including high strength, durability, and versatility. They can withstand heavy loads and provide the necessary structural support required for bridges. Additionally, steel round bars can be easily fabricated and welded, allowing for efficient construction processes. The use of steel round bars in bridge construction also ensures that the bridges are resistant to corrosion, which is particularly important in environments exposed to moisture or harsh weather conditions. Overall, steel round bars are a suitable and commonly used material in bridge construction applications due to their strength, durability, versatility, and resistance to corrosion.

Q: Can steel round bars be used for making springs or suspension components?: Yes, steel round bars can be used for making springs or suspension components. Steel is a commonly used material for these applications due to its high strength and durability. The round bar shape allows for easy fabrication and customization according to the specific requirements of the springs or suspension components.

Q: What are the different surface hardness options for steel round bars?: The different surface hardness options for steel round bars depend on the specific heat treatment processes used. Common options include annealing for softening the steel and improving machinability, normalizing for uniform grain structure and increased strength, quenching and tempering for achieving high hardness and toughness, and case hardening techniques like carburizing or nitriding to create a hard outer layer while maintaining a softer core.

Q: Can steel round bars be used in the construction of bridges?: Yes, steel round bars can definitely be used in the construction of bridges. Steel round bars are commonly used in bridge construction due to their high strength, durability, and versatility. They offer excellent load-bearing capabilities and can withstand heavy loads, making them suitable for use in bridge beams, columns, and other structural elements. Additionally, steel round bars can be easily welded, bent, and formed into various shapes and sizes, allowing for customized designs and efficient construction processes. The use of steel round bars ensures the structural integrity and longevity of the bridge, making them a popular choice in bridge construction worldwide.

Q: Are steel round bars available in different diameters?: Indeed, one can find steel round bars in diverse diameters. The diameter options for steel round bars span a broad spectrum, commencing from diminutive sizes like 1/8 inch (3.175 mm) and extending to larger dimensions like 12 inches (304.8 mm) or even beyond. This assortment of diameters accommodates the needs of various sectors and enterprises, granting the freedom to select the ideal size to match specific undertakings or criteria.

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: Are steel round bars used in the automotive industry?: Steel round bars are widely utilized in the automotive industry. They find their application in diverse areas like the production of engine components, suspension systems, chassis, and axles. Due to their exceptional strength, durability, and versatility, steel round bars are highly favored for automotive parts that demand exceptional performance and reliability. Moreover, steel's capacity to endure heavy loads and its resistance to deformation make it well-suited for critical automotive applications prioritizing safety.

Q: What are the advantages of using magnesium-alloy steel round bars?: One advantage of using magnesium-alloy steel round bars is their high strength-to-weight ratio. These bars offer excellent strength and durability while being lightweight, making them suitable for applications where weight reduction is crucial, such as in aerospace and automotive industries. Furthermore, magnesium-alloy steel round bars exhibit good corrosion resistance, which extends their lifespan and makes them ideal for outdoor and marine applications. Additionally, these bars can be easily machined and formed, allowing for flexibility in design and fabrication processes.

Q: Can steel round bars be used in the production of construction equipment?: Yes, steel round bars can be used in the production of construction equipment. Steel round bars are commonly used in the construction industry due to their strength, durability, and versatility. They can be used to manufacture various components of construction equipment such as axles, shafts, gears, and structural supports. The high tensile strength of steel round bars ensures that the equipment can withstand heavy loads and harsh operating conditions. Additionally, the machinability and weldability of steel round bars make them suitable for fabrication processes involved in the production of construction equipment. Overall, steel round bars are a reliable and commonly used material in the construction industry for manufacturing construction equipment.

Q: How are steel round bars used in the oil and gas industry?: The oil and gas industry extensively utilizes steel round bars for a multitude of purposes. Primarily, these bars are crucial in drilling operations as they are employed in the production of drill bits and drill collars, which are essential components of drilling equipment. Given the substantial levels of stress and wear experienced during drilling, steel round bars provide the necessary strength and durability to withstand such conditions. Moreover, steel round bars are utilized in the construction of oil and gas pipelines. These pipelines are responsible for the long-distance transportation of crude oil, natural gas, and other petroleum products. By utilizing steel round bars in the manufacturing of these pipes, their strength and resistance to corrosion are guaranteed, enabling them to endure the harsh operating conditions. Additionally, steel round bars find application in the construction of oil and gas storage tanks and pressure vessels. These containers are employed for the storage and transportation of petroleum products and gases under high pressure. Steel round bars ensure the required structural integrity and strength, thereby ensuring the safe storage and transportation of these substances. Furthermore, steel round bars are involved in the fabrication of various other equipment that is utilized in the oil and gas industry, including valves, fittings, pumps, and compressors. These components are pivotal for the efficient and safe operation of oil and gas production facilities. To summarize, steel round bars play a vital role in the oil and gas industry by being used in drilling operations, pipeline construction, storage tank fabrication, and the manufacturing of various equipment. Their exceptional strength, durability, and resistance to corrosion make them an ideal choice for these demanding applications, ultimately guaranteeing the efficient and safe extraction, transportation, and storage of oil and gas.

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