Alloy Steel Plates

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Alloy steel plates are an essential component in many industrial applications, and Om Steel is a leading manufacturer and supplier of high-quality alloy steel plates. Our plates are designed to meet the diverse needs of various industries and come in a wide range of grades to ensure that you get the right product for your specific application.

One of the key features of our alloy steel plates is their excellent strength and durability. They can withstand high temperatures and pressure, making them suitable for use in harsh and demanding environments. Our alloy steel plates are also highly resistant to corrosion and wear and tear, ensuring long-lasting performance.

We offer a variety of alloy steel plate types, including low alloy, high strength, and corrosion-resistant alloys, all of which are suitable for use in a wide range of applications. Our plates are easily fabricated, making them ideal for use in various manufacturing processes.

At Om Steel, we use the latest technology and manufacturing techniques to ensure that our products meet the highest quality standards. Our team of experts is always available to answer any questions you may have and to provide you with the necessary guidance and support to ensure that you get the best possible product.

Properties and Characteristics of Alloy Steel Plates

Alloy steel plates are widely used in various industries due to their excellent mechanical properties, high ductility, and good corrosion resistance. These plates are made by combining different metals with iron to enhance their strength and durability.

Properties of Alloy steel plates

Mechanical Properties

Alloy steel plates have excellent mechanical properties such as high tensile strength, yield strength, and elongation. These properties make them suitable for use in heavy-duty applications where they need to withstand high stress and pressure.

High Ductility

Alloy steel plates have high ductility which means they can be easily formed into different shapes without cracking or breaking. This property makes them ideal for use in manufacturing processes where complex shapes are required.

Corrosion Resistance

Alloy steel plates have good corrosion resistance due to the presence of chromium, nickel, or other elements that form a protective layer on the surface of the plate. This layer prevents the plate from corroding even when exposed to harsh environments.

Characteristics of Alloy steel plates

Specifications

The specifications of alloy steel plates vary depending on the application they are intended for. These specifications include thickness, width, length, weight per unit area, chemical composition, mechanical properties, and other relevant parameters.

Quality

The quality of alloy steel plates is defined by various quality parameters such as chemical composition, mechanical properties, surface finish, flatness tolerance, straightness tolerance, hardness level etc. These parameters ensure that the plate meets the required standards and performs well in its intended application.

Features

Alloy steel plates come with various features such as heat treatment options (annealing/normalizing/quenching), machinability (ease of cutting), weldability (ease of welding), formability (ease of forming), toughness (resistance to fracture under impact loading) etc. These features make them versatile and suitable for use in a wide range of applications.

Types and Grades of Alloy Steel Plates

Alloy steel plates are widely used in various industries due to their high strength, durability, and corrosion resistance. These plates are made by mixing different metals with carbon to form an alloy that has unique properties.

Low Alloy Steel Plates

Low alloy steel plates contain less than 8% of total alloying elements in their composition. These plates have a lower cost compared to high-alloy steels but still offer good strength and toughness. Low-alloy steel plates are commonly used in construction equipment, pressure vessels, and offshore structures.

Medium Alloy Steel Plates

Medium alloy steel plates contain between 8-15% total alloying elements in their composition. These plates offer higher strength, hardness, and wear resistance compared to low-alloy steels. Medium-alloy steel plates are commonly used in power generation equipment, oil drilling rigs, and mining machinery.

High Alloy Steel Plates

High alloy steel plates contain more than 15% total alloying elements in their composition. These plates offer exceptional strength, hardness, and corrosion resistance even at high temperatures. High-alloy steel plates are commonly used in chemical processing plants, aerospace applications, and nuclear power plants.

Nickel Alloy Steel Plates

Nickel-based alloys are widely used for their excellent corrosion resistance properties. Nickel-based alloys can withstand extreme temperatures while maintaining their mechanical properties making them ideal for use in harsh environments such as chemical processing plants or oil refineries.

Chromium-Molybdenum Alloy Steel Plates

Chromium-molybdenum (CrMo) alloys offer excellent heat resistance properties which make them ideal for use in high-temperature environments such as boilers or pressure vessels. CrMo alloys also have good corrosion resistance properties making them suitable for use in chemical processing plants.

Chrome-Molybdenum-Vanadium Alloy Steel Plates

Chrome-molybdenum-vanadium (CMV) alloys offer excellent strength and toughness properties making them ideal for use in high-stress applications such as structural components or heavy machinery. CMV alloys also have good corrosion resistance properties making them suitable for use in marine environments.

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Alloy Steel Plate Specifications

SpecificationsASTM A387 / ASME SA387
Thickness1mm-300mm
Width1000mm, 1219mm, 1500mm, 1800mm, 2000mm, 2500mm, 3000mm, 3500mm, 4050mm etc
Length2000mm, 2440mm, 3000mm, 5800mm, 6000mm, 12000mm, 15000mm etc
Surface2B, 2D, BA, NO.1, NO.4, NO.8, 8K, mirror, checkered, embossed, hair line, sand blast, Brush, etching Manufacturer and Supplier
FinishHot rolled plate (HR), Cold rolled sheet (CR)

Alloy steel Plate ASTM grades

GradesCMnPSSICrMo
ASTM A387 Grade 50.15 max0.3 – 0.60.0350.030.5 max4.00 – 6.000.45 – 0.65
ASTM A387 Grade90.15 max0.30 – 0.60.030.031.0 max8.0 – 10.00.9 – 1.1
ASTM A387 Grade 110.05 – 0.170.4 – 0.650.0350.0350.5 – 0.801.0 – 1.50.45 – 0.65
ASTM A387 Grade 120.05 – 0.170.4 – 0.650.0350.0350.15 – 0.40.8 – 1.150.45 – 0.6
ASTM A387 Grade 220.05 – 0.150.3 – 0.60.0350.0350.5 max2.0 – 2.50.9 – 1.1

Alloy Steel Plate Imperial Dimensions

Plate Surface finishGauge (in)Width (max in)
2B – Cold rolled, heat treated, pickled, skin passed Plate10–2472*
2D – Cold rolled, heat treated, pickled plate12–2460
BA Mexinox only18–2848
Polished plate (not brushed)11–2460
Temper rolled plate Mexinox only13–2948

Alloy Steel Plates Thickness

Dimension thickness
0.025"4"0.75"
0.032"3.5"0.875"
0.036"0.109"1"
0.04"0.125"1.125"
0.05"0.16"1.25"
0.063"0.19"1.5"
0.071"0.25"1.75"
0.08"0.3125"2"
0.09"0.375"2.5"
0.095"0.5"3"
0.1"0.625"-

Alloy Steel Plate Sizes

Size (in inches)Size (in mm)
.125"3.18mm
.134"3.40mm
.156"3.96mm
.187"4.75mm
.250"6.35mm
.312"7.92mm
.375"9.53mm
.500"12.7mm
.600"15.9mm
.750"19.1mm
.875"22.2mm
1"25.4mm
1.125"28.6mm
1.250"31.8mm
1.500"38.1mm
1.750"44.5mm
2"50.8mm
2.500"63.5mm
3"76.2mm

Alloy Steel Plates Weight

ThicknessPlate Weight per Unit AreaDensity
3/16 inches0.06000 lbs/in²42.184176 kg/m²0.315 lbs/in³8.72 g/cm³
1/4 inches0.08 lbs/in²56.245568 kg/m²0.315 lbs/in³8.72 g/cm³
3/8 inches0.121 lbs/in²85.0714216 kg/m²0.315 lbs/in³8.72 g/cm³
1/2 inches0.161 lbs/in²113.1942056 kg/m²0.315 lbs/in³8.72 g/cm³
5/8 inches0.196 lbs/in²137.8016416 kg/m²0.315 lbs/in³8.72 g/cm³
3/4 inches0.235 lbs/in²165.221356 kg/m²0.315 lbs/in³8.72 g/cm³
7/8 inches0.274 lbs/in²192.6410704 kg/m²0.315 lbs/in³8.72 g/cm³
1 inches0.313 lbs/in²220.0607848 kg/m²0.315 lbs/in³8.72 g/cm³
1 1/4 inches0.391 lbs/in²274.9002136 kg/m²0.315 lbs/in³8.72 g/cm³
1 1/2 inches0.47 lbs/in²330.442712 kg/m²0.315 lbs/in³8.72 g/cm³
1 3/4 inches0.549 lbs/in²385.9852104 kg/m²0.315 lbs/in³8.72 g/cm³
2 inches0.627 lbs/in²440.8246392 kg/m²0.315 lbs/in³8.72 g/cm³
2 1/4 inches0.705 lbs/in²495.664068 kg/m²0.315 lbs/in³8.72 g/cm³
2 1/2 inches0.784 lbs/in²551.2065664 kg/m²0.315 lbs/in³8.72 g/cm³
2 3/4 inches0.862 lbs/in²606.0459952 kg/m²0.315 lbs/in³8.72 g/cm³
3 inches0.941 lbs/in²661.5884936 kg/m²0.315 lbs/in³8.72 g/cm³

Industrial Application of Alloy Steel Plates

Defence & Aerospace

Defence & Aerospace

We are one of the leading supplier, stockist, exporter and trader of wide range of industrial materials and sourcing globally to our customers.

Oil/Gas

Oil/Gas

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Speciality Valves & Vacuum

Speciality Valves & Vacuum

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Precision Components

Precision Components

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FAQ

How are alloy steel plates manufactured?

Alloy steel plates are typically produced through a process called hot rolling, where a billet of steel is heated above its recrystallization temperature and then passed through a series of rollers to reduce its thickness. Cold rolling may also be used to achieve a finer finish or tighter tolerances. After rolling, the plates are typically annealed to improve their ductility and toughness.

What are some popular grades of alloy steel plates?

There are many different grades of alloy steel plates available, each with its own unique combination of properties. Some of the most popular grades include 4140, 4340, 6150, 8620, and 52100. The selection of a particular grade depends on the specific application requirements.

What are the benefits of using alloy steel plates?

Alloy steel plates offer several advantages over other types of steel. They are stronger, more durable, and more resistant to wear and corrosion. They can also withstand high temperatures and pressures, making them ideal for use in harsh environments. Additionally, the alloying elements in the steel can provide specific properties such as improved hardenability, machinability, or weldability.

What are some important factors to consider when selecting alloy steel plates?

When selecting alloy steel plates, it’s important to consider factors such as the required strength, hardness, and toughness, as well as the application temperature and environment. Other factors to consider include the desired surface finish, machining and welding properties, and cost. It’s also important to work with a reputable supplier who can provide quality materials and technical support.