Alloy Steel SCr420H AISI 5120

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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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C	Si	Mn	Cr	S	P	Ni	Cu
0.18~0.24	0.17~0.37	0.50~0.80	0.70~1.00	≤0.035	≤0.035	≤0.030	≤0.030

Description	Carbon Steel Rod/Carbon Steel Bar,carbon steel rod,carbon steel shaft,mild steel bar, Mild steel shaft,ms bar
Material	ASTM	1005, 1006, 1008, 1010, 1015, 1020, 1025, 1030, 1035, 1040, 1045, 1050, 1055, 1060, 1065, 1070, 1080, 1084, 1016, 1022
DIN	Ck10, Ck15, Ck22, Ck25, Ck30, Ck35, Ck40,Ck45, Ck50, 30Mn4, 40Mn4
BS	040A04, 095M15, 045M10, 080A40, 045M10, 080M50
JIS	S09CK, S9CK, S10C, S15C, S20C, S25C, S30C, S35C, S40C, S45C, S50C, S55C, S58C, SB45, S30C, S40C, S45C, S53C
Standard	GB/T799, ASTM A29, A108, A321, A575, BS970, DIN1652, JIS G4051
Section shape	Round, square, hexagonal, flat, angle
Surface	Black painted, galvanized
Specifications	Round bar	Diameter: 4mm~1200mm
Angle bar	Size: 3mm20mm20mm~12mm800mm800mm
Square bar	Size: 4mm4mm~100mm100mm
Flat bar	Thickness: 2mm~100mm
Width: 10mm~500mm
Hexagonal	Size: 4mm~800mm
Length	2m, 4m, 5.8m, 6m, 11.8m, 12m or as required.

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:Can steel round bars be hardened?: Steel round bars can indeed be hardened through a specific procedure known as hardening. This procedure entails heating the steel to a precise temperature and swiftly cooling it, which is commonly referred to as quenching. The rapid cooling induces a transformation in the steel, leading to heightened hardness and strength. Typically, the hardening process is followed by tempering, which entails reheating the hardened steel to a lower temperature. This step serves to minimize brittleness and further enhance toughness. Hardening is extensively applied in the manufacturing of tools, machine parts, and various other applications that demand exceptional strength and durability.

Q:Can steel round bars be used for making architectural or decorative elements?: Yes, steel round bars can be used for making architectural or decorative elements. They are versatile and can be shaped, welded, and fabricated into various designs, giving them the potential to enhance the aesthetic appeal of architectural structures or serve as decorative elements.

Q:What are the chemical composition requirements for steel round bars?: The chemical composition requirements for steel round bars vary depending on the specific grade or type of steel being used. However, in general, steel round bars are typically made from carbon steel, alloy steel, or stainless steel. Carbon steel round bars typically have a chemical composition consisting of iron and carbon, with trace amounts of other elements such as manganese, phosphorus, sulfur, and silicon. The carbon content in carbon steel round bars can range from 0.08% to 2.1%, depending on the desired strength and hardness. These bars are commonly used in construction, manufacturing, and general-purpose applications. Alloy steel round bars contain additional alloying elements such as chromium, nickel, molybdenum, vanadium, and manganese. These elements are added to enhance the mechanical properties of the steel, such as improved strength, hardness, and resistance to wear and corrosion. The specific chemical composition requirements for alloy steel round bars can vary significantly depending on the desired properties and the specific alloy being used. Stainless steel round bars are composed primarily of iron, chromium, and nickel, along with smaller amounts of other elements such as carbon, manganese, and molybdenum. The high chromium content in stainless steel provides excellent corrosion resistance, while the nickel content enhances its strength and ductility. The chemical composition requirements for stainless steel round bars are typically specified by international standards such as ASTM or EN, which outline the minimum and maximum allowable percentages of each element. In summary, the chemical composition requirements for steel round bars depend on the specific grade or type of steel being used, with carbon steel, alloy steel, and stainless steel being the most common types. The composition of these bars is carefully controlled to achieve the desired mechanical properties and performance characteristics for various applications.

Q:Grade 1 steel is round steel, grade two steel is ribbed thread steel. Are the weight of the two units the same?: Grade two steel is ribbed steel, but the average diameter is calculated. The chemical composition of grade steel and grade two steel is different, but the density of them is the same. Therefore, the unit weight of grade 1 steel and grade two steel is the same.

Q:Are steel round bars resistant to chemicals?: Yes, steel round bars are generally resistant to a wide range of chemicals. However, the level of resistance may vary depending on the specific type of steel and the particular chemical being used.

Q:What is the difference between a hot-rolled and a ground steel round bar?: A hot-rolled steel round bar is produced through a process called hot rolling, where the steel is heated above its recrystallization temperature and then passed through rollers to achieve the desired shape and size. This method results in a rough surface finish with a scaled or uneven texture. Hot-rolled steel round bars are commonly used in construction, manufacturing, and general fabrication applications where a smooth finish is not a primary concern. On the other hand, a ground steel round bar undergoes a process called grinding after the initial hot rolling. Grinding involves removing the outer layer of the hot-rolled bar to create a smooth and consistent surface finish. This process eliminates any imperfections, such as scale or unevenness, to provide a more precise and refined product. Ground steel round bars are often utilized in applications where a smooth surface finish is crucial, such as in machining, toolmaking, and precision engineering. In summary, the main difference between a hot-rolled and a ground steel round bar lies in the surface finish. Hot-rolled bars have a rough and uneven texture, while ground bars have a smooth and consistent surface. The choice between the two depends on the specific application and the desired level of surface finish required.

Q:Can steel round bars be used for making exercise equipment?: Steel round bars are a viable option for manufacturing exercise equipment due to their durability and strength. These bars are renowned for their ability to withstand heavy loads and provide stability during workouts, making them suitable for constructing various types of fitness equipment. Weightlifting bars, dumbbells, barbells, and other exercise equipment that require reliable materials can be created using steel round bars. Moreover, these bars can be easily machined, welded, and shaped into different forms, allowing for customization and versatility in exercise equipment design. As a result, steel round bars are favored by gym equipment manufacturers and fitness enthusiasts alike.

Q:Can steel round bars be used in the manufacturing of garden tools?: Yes, steel round bars can be used in the manufacturing of garden tools. Steel is a durable and robust material that offers strength and resistance, making it suitable for various garden tools such as shovels, rakes, hoes, and spades. The round bars can be shaped and formed to create the desired tool design and functionality, ensuring durability and longevity in outdoor conditions.

Q:On the market, 8mm Round Bar is not 9 meters a root? How much does it weigh about 300 meters? How much does it cost?: The weight is 0.395 kilograms / meter by the theory. Can be rolled, is not the foot, the largest is 7.5 diameter, the price depends on the place, and the price is different from place to place

Q:What are the advantages of using nickel-iron alloy steel round bars?: There are several advantages to using nickel-iron alloy steel round bars. Firstly, nickel-iron alloy steel has excellent resistance to corrosion and oxidation. This makes it highly suitable for use in environments where exposure to moisture, chemicals, or high temperatures is expected. The corrosion resistance of this alloy ensures that the round bars will maintain their structural integrity and durability over time, reducing the need for frequent replacements or repairs. Secondly, nickel-iron alloy steel round bars have excellent mechanical properties. They possess high strength, toughness, and hardness, making them suitable for applications that require heavy-duty performance. These round bars can withstand significant stress and load, making them ideal for use in various industries such as construction, manufacturing, and engineering. Additionally, nickel-iron alloy steel offers good thermal stability and resistance to thermal expansion. This means that the round bars will maintain their shape and dimensions even when exposed to extreme temperatures, ensuring their reliability and performance in high-temperature applications. Furthermore, nickel-iron alloy steel has excellent magnetic properties. It exhibits high magnetic permeability, making it suitable for electromagnetic applications such as transformers, inductors, and magnetic shielding. This property enables the round bars to efficiently conduct and distribute magnetic fields, enhancing the performance of these devices. Lastly, the versatility of nickel-iron alloy steel allows for various manufacturing processes and customization options. It can be easily machined, welded, and formed into different shapes and sizes, providing flexibility in design and application. This adaptability makes nickel-iron alloy steel round bars a preferred choice in many industries. In conclusion, the advantages of using nickel-iron alloy steel round bars lie in their corrosion resistance, excellent mechanical properties, thermal stability, magnetic properties, and versatility. These qualities make them reliable, durable, and suitable for a wide range of applications, ensuring optimal performance and longevity.

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