What is the Hardenability of 4140 Steel?

In the field of mechanical manufacturing, material properties often determine the quality and service life of products, and hardenability, as a key indicator to measure the heat treatment performance of steel, directly affects the comprehensive mechanical properties of parts. 4140 steel, as a widely used medium-carbon alloy structural steel, has a medium to high [...]

By |2025-06-28T12:46:36+08:00June 28th, 2025|Technology & Knowledge|Comments Off on What is the Hardenability of 4140 Steel?

How Do the Chemical Elements of 4340 Steel Affect Its Properties?

4340 steel is a high-strength, high-toughness nickel-chromium-molybdenum alloy structural steel, belonging to the category of ultra-high-strength steel. Its excellent comprehensive performance (especially in the quenched and tempered state) makes it widely used in key fields such as aviation, defense, and energy. The following is a systematic analysis of the performance of 4340 steel by [...]

By |2025-06-28T12:54:26+08:00June 13th, 2025|Technology & Knowledge|Comments Off on How Do the Chemical Elements of 4340 Steel Affect Its Properties?

Low Temperature Toughness: Which One is Better, 4140 Steel or 4340 Steel?

The low temperature toughness of 4340 steel is significantly better than that of 4140 steel. Here is a detailed comparison and reason analysis: 1. Key Difference: Nickel Content 4140 steel: It is a medium carbon chromium-molybdenum steel. Its standard composition does not contain nickel, or the nickel content is very low (usually present as [...]

By |2025-06-13T12:07:03+08:00June 12th, 2025|Steel vs Steel, Technology & Knowledge|Comments Off on Low Temperature Toughness: Which One is Better, 4140 Steel or 4340 Steel?

4140 Steel Guide: How to Balance Strength and Hardness?

4140 steel (domestic grade 42CrMo) is an excellent medium carbon alloy structural steel, known for its high strength, good toughness, wear resistance and hardenability. There is a close relationship between its strength and hardness, but the selection needs to be weighed according to the specific application requirements. Core Principles: Strength and hardness can usually [...]

By |2025-06-10T08:22:10+08:00June 10th, 2025|FAQ GUIDE, Technology & Knowledge|Comments Off on 4140 Steel Guide: How to Balance Strength and Hardness?

Industrial Application & Performance of H13 Steel

H13 steel (US grade, corresponding to European grade 1.2344) is a widely used hot working die steel. Due to its excellent high temperature performance, wear resistance and thermal fatigue resistance, it is widely used in high temperature and high pressure industrial scenarios. The following is a detailed analysis of its industrial applications and performance: [...]

By |2025-06-04T16:27:35+08:00June 3rd, 2025|Technology & Knowledge|Comments Off on Industrial Application & Performance of H13 Steel

M2 High Speed ​​Steel Hardness and Application Analysis

M2 high-speed steel (such as AISI M2 in the United States or W6Mo5Cr4V2 in China) is a high-carbon, high-alloy tool steel known for its excellent red hardness (ability to maintain hardness at high temperatures) and wear resistance. Its hardness mainly depends on the heat treatment process. The following are detailed data and analysis: 1. [...]

By |2025-06-03T08:46:43+08:00June 2nd, 2025|Technology & Knowledge|Comments Off on M2 High Speed ​​Steel Hardness and Application Analysis

Why is 8620 Steel Called the “King of Carburizing Steel”?

In the field of mechanical manufacturing, carburizing steel is the core material of high-load parts such as gears, bearings, and transmission shafts. Among the many carburizing steel grades, 8620 steel (SAE/AISI 8620) is known as the "king of carburizing steel" for its excellent balance of comprehensive performance. Behind this title is its unique advantages [...]

By |2025-05-28T08:28:20+08:00May 27th, 2025|Technology & Knowledge|Comments Off on Why is 8620 Steel Called the “King of Carburizing Steel”?

What is the H13 Steel Ultrafine Processing Technology?

H13 ultra-fine processing refers to a material optimization technology that uses a special process to refine the grains of H13 hot working die steel to significantly improve its comprehensive performance. The following is a detailed analysis: 1. Basic Characteristics of H13 Steel H13 is a commonly used hot working die steel, widely used in [...]

By |2025-05-18T10:19:22+08:00May 18th, 2025|Technology & Knowledge|Comments Off on What is the H13 Steel Ultrafine Processing Technology?

How Does Heat Treatment Affect the Hardness and Toughness of 4130 and 4140 Steels?

The mechanical properties of chromium-molybdenum steels (4130 and 4140) are highly dependent on the heat treatment process. By controlling the heating, cooling and tempering processes, engineers can achieve a precise balance between hardness and toughness. This article will reveal the influence of heat treatment on the properties of these two steels through experimental data, [...]

By |2025-05-23T12:51:36+08:00May 5th, 2025|Technology & Knowledge|Comments Off on How Does Heat Treatment Affect the Hardness and Toughness of 4130 and 4140 Steels?

Application of 42CrMo4 Steel in Wind Power Bearings: Dual Challenges of Fatigue Resistance & Corrosion Resistance

As the global installed capacity of wind power exceeds the 1 TW mark, the large-scale development of wind turbines and the rapid development of offshore wind power have put forward more stringent requirements on core components. Bearings, as the "joints" of wind turbines, need to operate stably for more than 20 years under extreme [...]

By |2025-05-05T08:36:28+08:00May 4th, 2025|Technology & Knowledge|Comments Off on Application of 42CrMo4 Steel in Wind Power Bearings: Dual Challenges of Fatigue Resistance & Corrosion Resistance

How to Optimize the Heat Treatment Properties of 4340 Steel?

In the modern industrial field, 4340 steel is widely used in high-end manufacturing industries such as aerospace, national defense, and heavy machinery due to its excellent comprehensive mechanical properties. However, with the rapid development of industrial technology, the performance requirements for 4340 steel have become increasingly stringent. As a key process to tap the [...]

By |2025-05-05T08:35:53+08:00May 2nd, 2025|Technology & Knowledge|Comments Off on How to Optimize the Heat Treatment Properties of 4340 Steel?

A Complete Analysis of the Heat Treatment Process of 42CrMo4 Steel: How to Unlock Its Ultimate Performance?

42CrMo4 steel (corresponding to national standard 42CrMo, American standard 4140) is a medium-carbon alloy structural steel. Due to its high strength, excellent hardenability and good fatigue performance, it is widely used in high-stress working conditions such as heavy-duty gears, transmission shafts, and oil drilling tools. However, its performance is highly dependent on the precise [...]

By |2025-04-22T08:49:39+08:00April 21st, 2025|Technology & Knowledge|Comments Off on A Complete Analysis of the Heat Treatment Process of 42CrMo4 Steel: How to Unlock Its Ultimate Performance?

Application and Characteristics Analysis of 51CrV4 Spring Steel

On the grand stage of the machinery industry, many key roles are silently playing an irreplaceable role, and 51CrV4 spring steel is one of them. From the precise operation of automobile engines to the powerful drive of construction machinery, it does not often appear in the public eye, but with its unique performance, it [...]

By |2025-04-15T11:00:16+08:00April 15th, 2025|Technology & Knowledge|Comments Off on Application and Characteristics Analysis of 51CrV4 Spring Steel

Optimization of 4145 Steel Heat Treatment Process: How to Improve the Balance Between Hardness and Toughness?

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, [...]

By |2025-04-15T11:00:29+08:00April 14th, 2025|Technology & Knowledge|Comments Off on Optimization of 4145 Steel Heat Treatment Process: How to Improve the Balance Between Hardness and Toughness?

Specific Application & Performance of 4340 Steel in the Oil & Gas Industry

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 [...]

By |2025-04-11T08:32:35+08:00April 8th, 2025|Technology & Knowledge|Comments Off on Specific Application & Performance of 4340 Steel in the Oil & Gas Industry
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