AISI 4140 42CrMo4 Alloy Steel Round Bar System 1

AISI 4140 42CrMo4 Alloy Steel Round Bar System 2

AISI 4140 42CrMo4 Alloy Steel Round Bar System 3

AISI 4140 42CrMo4 Alloy Steel Round Bar System 4

AISI 4140 42CrMo4 Alloy Steel Round Bar

Ref Price:

Loading Port:: China main port

Payment Terms:: TT OR LC

Min Order Qty:: 5 m.t.

Supply Capability:: 100000 m.t./month

Inquire Now

Chat Online

Add to My Favorites

OKorder Service Pledge

Quality Product, Order Online Tracking, Timely Delivery

OKorder Financial Service

Credit Rating, Credit Services, Credit Purchasing

AISI 4140 42CrMo4 Alloy Steel Round Bar

Specifications

1. Delivery condition: Hot-rolled,black surface

2. Chemical composition: C:0.38~0.45 Si:≤0.40 Mn:0.60~0.90 S:≤0.035 P:≤0.035 Cr:0.90~1.20 Ni:≤0.030 Cu:≤0.030 Mo:0.15~0.30

C	Si	Mn	P	S	Cr	Mo
0.38-0.45	≤0.4	0.6-0.9	≤0.035	≤0.030	0.9-1.2	0.15-0.30

3.Process: EAF + LF + VD + Forged + Heat Treatment (optional)

4.Delivery condition: Hot forged +Rough machined (black surface after Q/T)+ Turned (optional)

5.Technical Data: According to the customer's requirement of Chemical Composition, Physical Properties and Mechanical Testing

6.Test: ultrasonic test according to SEP 1921-84 3 D/D

7. Material details will be as per agreed technical specifications

Equipment

We are well-equipped with 2000-Ton Hydraulic press, 15-Ton Hydraulic manipulator, various kinds of Lathe and boring machine, product range OD 200mm-800mm, Length less than 9m.

AISI 4140 42CrMo4 Alloy Steel Round Bar

Products

AISI 4140 42CrMo4 Alloy Steel Round Bar

Q:How do steel round bars perform under impact or shock loading?: Steel round bars exhibit exceptional performance when subjected to impact or shock loading. Their high strength and toughness enable them to withstand sudden forces, preventing deformation or failure. The inherent properties of steel, including its hardness and ductility, contribute to its capacity to absorb and distribute energy throughout the material, thereby minimizing the impact on the structure. When impacted or subjected to shock loading, steel round bars undergo plastic deformation, allowing them to absorb and dissipate applied energy without fracturing. This ability to absorb energy is vital in various industries, such as construction, automotive, and machinery, where components frequently experience dynamic loads. Furthermore, steel's excellent fatigue resistance further enhances its performance under impact or shock loading. Even when repeatedly exposed to impacts, steel round bars can endure cyclic loading without experiencing significant degradation in their mechanical properties. Moreover, steel round bars can be further improved through various heat treatment processes, such as quenching and tempering, which refine the steel's microstructure, resulting in increased strength, toughness, and hardness. In conclusion, steel round bars exhibit remarkable performance when subjected to impact or shock loading. Their high strength, toughness, and energy absorption capabilities make them reliable and widely utilized in applications where sudden forces or dynamic loads are anticipated.

Q:What is the maximum titanium content allowed for steel round bars?: The maximum titanium content allowed for steel round bars typically depends on the specific steel grade and composition. However, as a general guideline, the maximum titanium content in steel round bars is usually around 0.05-0.06%.

Q:Can steel round bars be used for making security grilles?: Yes, steel round bars can be used for making security grilles. Steel is a durable and strong material that provides excellent security for windows and doors. Round bars can be welded together to create a sturdy framework for the security grilles. Additionally, steel round bars can be easily customized and shaped to fit any size or design requirement, making them suitable for various types of security grilles. The hardness and toughness of steel also make it resistant to cutting or tampering, further enhancing the security features of the grilles. Overall, steel round bars are a reliable choice for making security grilles due to their strength, durability, and customization capabilities.

Q:Is there a steel bar of 6 diameter on the market?: Reinforced concrete (Rebar) is used for reinforced concrete and prestressed reinforced concrete steel, its cross section is round, sometimes with rounded square.

Q:Can steel round bars be threaded or machined?: Yes, steel round bars can be threaded or machined.

Q:How do you prevent scaling of steel round bars during heat treatment?: One way to prevent scaling of steel round bars during heat treatment is by using a protective atmosphere such as nitrogen or hydrogen gas. This atmosphere helps create a barrier between the steel surface and the oxygen in the air, preventing oxidation and scaling. Additionally, applying a coating or using a salt bath can also provide a protective layer on the steel surface, minimizing scaling during the heat treatment process.

Q:What is the difference between a hot-rolled and a ground steel round bar?: The production of a hot-rolled steel round bar involves a process known as hot rolling. This process entails heating the steel above its recrystallization temperature and passing it through rollers to achieve the desired shape and size. As a result, the bar has a rough surface finish with a scaled or uneven texture. Hot-rolled steel round bars find common usage in construction, manufacturing, and general fabrication applications where a smooth finish is not a primary concern. Contrarily, a ground steel round bar goes through a process called grinding after the initial hot rolling. Grinding entails the removal of the outer layer of the hot-rolled bar to create a smooth and consistent surface finish. This process eliminates any imperfections, including scale or unevenness, resulting in a more precise and refined product. Ground steel round bars are often employed in applications where a smooth surface finish is crucial, such as in machining, toolmaking, and precision engineering. In conclusion, the primary distinction between a hot-rolled and a ground steel round bar lies in the surface finish. Hot-rolled bars possess a rough and uneven texture, whereas ground bars exhibit a smooth and consistent surface. The choice between the two depends on the specific application and the desired level of surface finish required.

Q:What are the different types of steel round bars used in the agricultural sector?: Different types of steel round bars are commonly utilized in the agricultural sector due to their strength, durability, and versatility, playing a crucial role in various agricultural applications. 1. Mild Steel Round Bars: Widely used in agriculture, mild steel provides excellent strength at a relatively low cost. These round bars are commonly employed in constructing agricultural equipment like plows, cultivators, and harrows. 2. Carbon Steel Round Bars: Known for their high strength and toughness, carbon steel round bars can withstand heavy loads, making them ideal for applications requiring superior durability. They are commonly used in manufacturing tractor parts, tillage tools, and other heavy-duty agricultural machinery. 3. Alloy Steel Round Bars: Alloy steel round bars are produced by incorporating alloying elements such as chromium, nickel, or molybdenum into steel. These elements enhance the steel's strength, hardness, and corrosion resistance. In agriculture, alloy steel round bars are frequently used in manufacturing high-performance components like gears, axles, and shafts. 4. Stainless Steel Round Bars: Stainless steel round bars exhibit high resistance to corrosion and possess excellent mechanical properties. They are commonly utilized in agricultural applications that demand resistance to moisture, chemicals, and harsh environments. Stainless steel round bars find extensive use in manufacturing dairy equipment, storage tanks, and irrigation systems. 5. Tool Steel Round Bars: Specifically designed to withstand high temperatures, abrasion, and impact, tool steel round bars are employed in agricultural tasks involving cutting, shaping, or drilling. They are commonly utilized in the production of blades, cutting tools, and machinery parts for crop harvesting and processing. Choosing the appropriate type of steel round bar is crucial, considering the specific requirements and conditions of each agricultural application. By selecting the right steel round bar, farmers and agricultural professionals can ensure the reliability and longevity of their equipment and machinery.

Q:How many grades of steel are round steel?: Round steel is a solid strip of steel whose cross section is round. The specifications are expressed in millimeters of diameter, such as "50", which means a round bar of 50 millimeters in diameter. It is divided into three kinds: hot rolling, forging and cold drawing. There is no classification of steel. However, high quality finished steel must be in the form of round steel, otherwise it is called ingot or billet and section steel.

Q:Can steel round bars be bent?: Yes, steel round bars can be bent. The flexibility of steel allows it to be shaped and manipulated into various forms, including bending round bars into desired angles or curves.

1. Manufacturer Overview
Location
Year Established
Annual Output Value
Main Markets
Company Certifications

2. Manufacturer Certificates
a) Certification Name
Range
Reference
Validity Period

3. Manufacturer Capability
a)Trade Capacity
Nearest Port
Export Percentage
No.of Employees in Trade Department
Language Spoken:
b)Factory Information
Factory Size:
No. of Production Lines
Contract Manufacturing
Product Price Range