Exploring 4140 Steel Plate SpecificationsExploring 4140 Steel Plate Specifications

Introduction

In the realm of industrial materials, 4140 steel plate stands out for its exceptional strength, durability, and versatility. This alloy steel, renowned for its robust performance in various sectors, is a cornerstone for many critical applications. At OTAI, we pride ourselves on offering top-tier 4140 steel plate solutions that meet the highest industry standards.

Chemical Composition and Properties

4140 steel, also known as Chromoly, blends chromium and molybdenum to bolster strength, hardness, and resistance to thermal distortion.

C Si Mn Cr Mo P S
4140 0.38～0.43 0.15～0.35 0.75～1.00 0.80～1.10 0.15～0.25 ≤0.035 ≤0.040

3.1 The Role of Chromium and Molybdenum

Chromium and Molybdenum are key alloying elements in 4140 steel, enhancing hardenability and providing resistance to wear and abrasion.

3.2 Carbon Content for Strength

The carbon content in 4140 steel plate, ranging from 0.38 to 0.43%, is crucial for achieving the desired hardness and tensile strength.

3.3 Balanced Alloying for Versatility

The balanced composition of 4140 steel allows for a versatile application in diverse industries, including automotive, heavy machinery, and more.

Heat Treatment and Mechanical Properties

The mechanical properties of 4140 steel plate are significantly influenced by its heat treatment process, which includes normalization, annealing, and tempering.

4.1 Heat Treatment Processes

Through processes like normalization at 870°C and tempering at varying temperatures, 4140 steel achieves different levels of hardness and strength.

4.2 Achieving Optimal Hardness

Post-quench tempering can be adjusted to reach specific Rockwell hardness levels, suitable for a wide range of applications.

4.3 Enhanced Mechanical Properties

The result is a steel plate with outstanding mechanical properties, such as tensile strength and yield strength, that are essential for demanding applications.

Applications and Advantages

4140 steel plate finds its niche in various applications due to its unique combination of properties.

5.1 Automotive Industry Applications

In the automotive sector, 4140 steel is used for forged gears and shafts, taking advantage of its high strength and durability.

5.2 Heavy Machinery Componentry

For heavy machinery, 4140 steel plate is ideal for manufacturing components that require high wear resistance and load-bearing capacity.

5.3 Customized Solutions by OTAI

OTAI offers tailored cutting services and packaging solutions, ensuring that each 4140 steel plate meets the precise requirements of our clients.

OTAI’s Unique Selling Proposition

OTAI’s commitment to excellence is evident in our extensive inventory of 4140 steel plate, with a ready stock of 10,000 tons catering to a variety of thicknesses and sizes.

6.1 Inventory and Availability

Our large inventory ensures quick delivery and responsiveness to the dynamic needs of the market.

6.2 Cutting and Processing Services

We provide cutting and processing services, including precise cutting to size and shape, ensuring optimal performance in end-use applications.

6.3 Packaging and Protection

Our packaging services, including rust prevention measures, guarantee that our products reach customers in pristine condition.

Exploring 4140 Steel Plate Specifications

4140 steel plate exemplifies the strength and versatility of alloy steel in today’s industrial landscape. OTAI’s commitment to supplying top-notch 4140 steel plates, along with our extensive range of services, establishes us as a trusted ally for all your alloy steel requirements. Looking ahead, we are dedicated to upholding standards of precision, reliability, and performance.