4145 steel (ASTM A29 standard) is a medium carbon chromium-molybdenum alloy steel. It is widely used in key areas such as oil drill collars and heavy shaft parts due to its excellent strength, wear resistance and fatigue resistance. However, the optimization of its heat treatment process directly determines the balance between hardness and toughness, [...]
In the oil and gas industry, from exploration to mining, from transportation to processing, every link has extremely high requirements for the performance of equipment and materials. As an alloy steel with excellent comprehensive performance, 4340 steel plays an important role in this challenging industry. It stands out in many application scenarios with its [...]
30CrNiMo8 steel is a medium-carbon alloy structural steel. Due to its excellent strength, toughness and hardenability, it is widely used in high-load and high-stress key components in industry. The following is a detailed analysis of its specific applications and performance: 1. Specific Applications of 30CrNiMo8 Steel In Industry Machinery manufacturing Gears and transmission [...]
In mining machinery, ship propulsion systems, heavy truck transmissions and other scenarios, every meshing of heavy-duty gears is like a "dance of steel" - it must withstand thousands of Nm of torque impact and resist long-term erosion from fatigue and wear. 42CrMo4 steel (equivalent to national standard 42CrMo and American standard 4140) has become [...]
In the current era of rapid development of the automobile industry, a car is supported by numerous advanced materials and exquisite craftsmanship from the design blueprint to the road. Among them, special alloy steel has become a key role in automobile manufacturing with its excellent characteristics. From the core components of the engine to [...]
4145 steel and 4140 steel are both medium carbon chromium-molybdenum alloy steels (ASTM A29 standard). Due to the subtle differences in composition and performance, they often face selection disputes in the fields of petroleum, aerospace, heavy machinery, etc. This article systematically analyzes the differences between the two through chemical composition comparison, mechanical property testing, [...]
In the field of industrial manufacturing, the choice of materials is often directly related to product quality and production efficiency. Among them, 4140 steel is favored for its excellent comprehensive performance. 4140 rolling and 4140 forging processes have their own advantages in different application scenarios. From aerospace precision parts to automotive key parts manufacturing, [...]
Die forging and free forging are two main forging processes for metal plastic forming. They have significant differences in forming methods, process characteristics, and application scenarios. The following will conduct an in-depth comparative analysis of 4110 die forging and 4140 free forging from key aspects such as process flow, performance impact, cost-effectiveness, and applicable [...]
Let's talk about the performance of 4130 steel in the oil and gas industry. In the oil and gas industry, from mining to transportation, every link has strict requirements on material performance. 4130 steel has become a "star material" in the industry with its own advantages. What are its advantages? Click in to see! [...]
In oil drilling operations, materials need to face multiple harsh tests such as high temperature and high pressure, corrosive medium erosion, alternating mechanical stress, etc. Each process places extreme demands on the comprehensive performance of the material. The 4130, 4140 and 4340 low-alloy chromium-molybdenum steels, with their high strength, high toughness and excellent corrosion [...]
Bearing steel is the solid foundation of mechanical operation. Its extremely high hardness and wear resistance allow it to stand firm in a high-load working environment. Behind every precise rotation, there is the silent persistence of bearing steel. It is a trustworthy "steel guard" in the industrial field.The following content is based on the [...]
Special steels are very important for accurate hardness testing due to their excellent mechanical properties and wide range of applications (such as cutting tools, molds, aerospace components, etc.). When measuring the hardness of parts, everyone is familiar with three commonly used hardness expressions, namely Brinell hardness (HB), Rockwell hardness (HR) and Vickers hardness (HV). [...]
When Industrial Civilization "Stands Up", Its Skeleton is Called 4140 In 1911, the Titanic's steam turbine was made of nickel steel, but it sank due to low-temperature brittleness; In 2023, the landing bracket of the SpaceX starship was made of 4140 steel, successfully withstanding the dual test of 1700℃ high temperature and -180℃ extreme [...]
H13 steel (American standard AISI) and 1.2344 steel (German standard DIN) are both widely used hot working die steels, but there are certain differences in composition, performance and application scenarios. Here is a comprehensive comparison of the two: 1. Chemical Composition Comparison What are the main differences in the chemical composition of [...]
1.2329 steel (corresponding to DIN standard, similar to H11 steel in the United States) is a hot working die steel. It is widely used in many industrial fields for its excellent high temperature strength, wear resistance, toughness and thermal fatigue resistance. The following are its specific applications and cases: Versatile Applications in Modern Industry [...]