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Alloy Steel Plates & Sheets

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Alloy Steel Plates Supplier

Sachin Steel Center is your trusted partner for high-quality Alloy Steel Plates and Sheets, offering a broad range of grades, sizes, and dimensions. With years of industry expertise, we specialize in manufacturing and supplying alloy steel products for a diverse range of applications, from heavy industries to specialized sectors. Our products are designed for optimum performance, durability, and cost-effectiveness, ensuring long-lasting solutions for our clients.

For high-quality Alloy Steel Plates in India, Sachin Steel Center is your trusted supplier, offering a range of low-alloy steel sheets in grades like 4130, 4150 and 8620, designed to meet the toughest industrial standards.

Why Choose Us for Alloy Steel Sheets?

At Sachin Steel Center, we understand the importance of quality, precision, and timely delivery. Here’s why we are the preferred supplier of alloy steel plates and sheets:

  • Superior Quality Products : We provide alloy steel products that meet the highest quality standards. Our materials are sourced from reputable manufacturers and undergo strict quality checks, including tensile strength, yield strength, and hardness tests. 
  • Wide Range of Grades & Specifications : Our product range includes various alloy steel sheet metals, offering in many sizes and specifications to meet specific project requirements, including high-tensile plates, alloy steel sheets for welding & more.
  • Customized Solutions : We offer customized alloy steel plates and sheets tailored to meet your precise requirements, including specific grades, dimensions & thicknesses.
  • On-Time Delivery & Competitive Pricing : We ensure timely delivery of products at competitive pricing without compromising on the quality of the products.
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Table Of Content

Introduction to Alloy Steel Plates & Sheets

Alloy Steel Plates are essential materials in various industrial sectors due to their superior mechanical properties, strength, and versatility. These steel products are alloyed with different elements such as nickel, chromium, molybdenum, manganese, and vanadium, which enhance their overall performance.

Alloy Steels come in two main categories:

  • Low-Alloy Steel: Contains a small percentage of alloying elements, enhancing properties like strength and toughness.
  • High-Alloy Steel: Contains higher amounts of alloying elements, making the material highly resistant to corrosion and wear.

Key Features of Our Alloy Steel Sheets:

  • Enhanced Strength: Alloy steel plates are designed to offer high tensile strength and resistance to cracking, making them suitable for heavy-duty applications.
  • Corrosion Resistance: By incorporating elements like chromium and nickel, alloy steel sheets provide excellent resistance to rust, oxidation, and other forms of corrosion, ensuring longevity in harsh environments.
  • High Durability: Our alloy steel plates are made to withstand high temperatures, extreme stress, and wear. 
  • Customization Options: We offer alloy plate and sheet metal in various grades, sizes, and thicknesses to meet your specific project needs. Our customized alloy steel plates can be engineered to the exact dimensions, ensuring a perfect fit for your requirements.
  • Versatility: Alloy steel sheets and plates are used in a variety of industries for multiple applications, including machinery parts, bridges, boilers, and tanks.

Manufacturing Process of Alloy Steel Plates

At Sachin Steel Center, we manufacture high-quality alloy steel sheets with excellent formability, machinability, weldability, and corrosion resistance.

Key Manufacturing Highlights:

  • Rolling Methods: Both hot and cold rolling to achieve precise dimensions and mechanical properties.
  • Heat Treatment: Processes like annealing, tempering, and quenching enhance strength, ductility, and toughness.
  • Weldability: Compatible with TIG, MIG, SAW, and resistance welding, with or without filler material.
  • Corrosion Resistance: High alloy content, including molybdenum, provides resistance to pitting, crevice, and stress corrosion cracking.
  • Finishing: Industrial finishing and polishing ensure smooth surfaces and extended plate life.

Alloy Steel Sheet Standards

At Sachin Steel Center, we manufacture and supply high-quality alloy steel sheets that meet international standards, ensuring reliability and performance for all industrial applications.

  • ASTM Standards
    Our alloy steel sheets comply with ASTM standards such as A387/A387M for chromium-molybdenum steel plates used in boilers and pressure vessels, and A1011/A1011M for structural applications like buildings and bridges. These standards ensure strength, durability, and high-temperature performance.
  • ASME Standards
    We follow ASME codes, including SA-387/SA-387M, for pressure vessel construction. These standards define mechanical properties, tensile strength, and yield strength, guaranteeing that our plates are suitable for critical engineering applications.
  • AISI Standards
    Our products also adhere to AISI standards, such as AISI 4140, known for high strength, toughness, and wear resistance making them ideal for oil & gas, automotive, and structural applications.
Alloy Steel SheetsPlates

Alloy Steel Plate Grades

Alloy steel plates are categorized by standards like ASTM, AISI/SAE, or EN (European), based on chemical composition and mechanical properties. Common alloying elements include chromium, nickel, molybdenum, and vanadium, which enhance strength, toughness, wear resistance, and high-temperature performance.

Grade / Series Description / Use
ASTM A387 Grades Chrome-molybdenum plates for boilers and pressure vessels. Grades include 5, 9, 11, 12, 22, 91.
AISI/SAE 4100 Series High strength and toughness for automotive, aircraft, and heavy-duty parts.
4130 Strong, weldable; used in automotive and aircraft parts.
4140 Strong, machinable; ideal for gears and shafts.
4340 Tough, wear-resistant; used in crankshafts and landing gear.
AISI/SAE 8600 Series Hardenable steel for durable surfaces, e.g., 8620 for gears and shafts.

Types of Alloy Steel Sheets

Cold Rolled Sheets

Low Alloy Steel Sheets

Polished SS Plates

Hot Alloy steel Sheets

Hexagonal Perforated Stainless Steel Sheet

Alloy Steel Perforated Sheet

Hot Rolled Sheets

Cold Rolled Alloy Steel Plates

SS Flat Plates

Chromium-Molybdenum Steel Sheets

SS Shim Plates

Alloy Steel Shim Sheet

Request Quote on Types of Alloy Sheet/Plates
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Alloy Steel Plate Specification

Specifications ASME SA387/ ASTM A387
Length 2440mm, 2000mm, 5800mm, 3000mm, 12000mm, 6000mm, 15000mm etc
Thickness 1 to 300mm
Width
 1800mm,3500mm, 1000mm, 1500mm, 2500mm, 1219mm, 3000mm, 2000mm,4050mm etc
Form Coils, Foils, Rolls, Plain Sheet, Shim Sheet, Strip
Surface 2B, etching, NO.1, 2D, NO.8, mirror, NO.4, embossed, BA, 8K, checkered, Brush, hair line, sand blast
Finish Hot rolled plate , Cold rolled sheet
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Alloy Steel Plate Price Per Kg

The price of alloy steel plates in India varies based on grade, thickness, size, and alloying elements like chromium, nickel, and molybdenum. Factors such as ASTM/AISI/EN standards, heat treatment, and finishing also affect cost. At Sachin Steel Center, we offer high-quality alloy steel plates in custom sizes and grades at competitive prices. Contact us for a personalized quote.

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Low Alloy Steel Plates Gauge

AS Gauge Chart*
Gauge
Number		 MM Inches
8 4.175 .1644
7 4.554 .1793
10 3.416 .1345
9 3.797 .1495
11 3.038 .1196
14 1.897 .0747
12 2.656 .1046
16 1.518 .0598
20 .911 .0359
18 1.214 .0478
22 .759 .0299
26 .454 .0179
24 .607 .0239
28 .378 .0149

Alloy Steel Sheet Weight chart

Thickness Plate Weight per Unit Area Density
3/16 inches 0.06000 lbs/in²42.184176 kg/m² 0.315 lbs/in³8.72 g/cm³
1/4 inches 0.08 lbs/in²56.245568 kg/m² 0.315 lbs/in³8.72 g/cm³
3/8 inches 0.121 lbs/in²85.0714216 kg/m² 0.315 lbs/in³8.72 g/cm³
1/2 inches 0.161 lbs/in²113.1942056 kg/m² 0.315 lbs/in³8.72 g/cm³
5/8 inches 0.196 lbs/in²137.8016416 kg/m² 0.315 lbs/in³8.72 g/cm³
3/4 inches 0.235 lbs/in²165.221356 kg/m² 0.315 lbs/in³8.72 g/cm³
7/8 inches 0.274 lbs/in²192.6410704 kg/m² 0.315 lbs/in³8.72 g/cm³
1 inches 0.313 lbs/in²220.0607848 kg/m² 0.315 lbs/in³8.72 g/cm³
1 1/4 inches 0.391 lbs/in²274.9002136 kg/m² 0.315 lbs/in³8.72 g/cm³
1 1/2 inches 0.47 lbs/in²330.442712 kg/m² 0.315 lbs/in³8.72 g/cm³
1 3/4 inches 0.549 lbs/in²385.9852104 kg/m² 0.315 lbs/in³8.72 g/cm³
2 inches 0.627 lbs/in²440.8246392 kg/m² 0.315 lbs/in³8.72 g/cm³
2 1/4 inches 0.705 lbs/in²495.664068 kg/m² 0.315 lbs/in³8.72 g/cm³
2 1/2 inches 0.784 lbs/in²551.2065664 kg/m² 0.315 lbs/in³8.72 g/cm³
2 3/4 inches 0.862 lbs/in²606.0459952 kg/m² 0.315 lbs/in³8.72 g/cm³
3 inches 0.941 lbs/in²661.5884936 kg/m² 0.315 lbs/in³8.72 g/cm³

Alloy Steel Plate Hs Code

HS Code Description
72107000 iron or non- alloy Flat- rolled products of a width of 600 mm
73089090 60mmx40mmx5mm Thk Non AS Plate

Chemical Composition Chart of AS Plate

Grades Mn Mo C S P SI Cr
SA 387 Gr 5 Plates 0.3 – 0.6 0.45 – 0.65 0.15 max 0.03 0.035 0.5 max 4.00 – 6.00
SA 387 Gr 9 Plates 0.30 – 0.6 0.9 – 1.1 0.15 max 0.03 0.03 1.0 max 8.0 – 10.0
SA 387 Gr 11 Plates 0.4 – 0.65 0.45 – 0.65 0.05 – 0.17 0.035 0.035 0.5 – 0.80 1.0 – 1.5
SA 387 Gr 12 Plates 0.4 – 0.65 0.45 – 0.6 0.05 – 0.17 0.035 0.035 0.15 – 0.4 0.8 – 1.15
SA 387 Gr 22 Plates 0.3 – 0.6 0.9 – 1.1 0.05 – 0.15 0.035 0.035 0.5 max 2.0 – 2.5

Alloy Steel Plates Mechanical Properties

Elongation in 50mm (%) Yield Strength Tensile Strength Elongationin 200mm (%)
22 45 Ksi, 310 MPa 70-90 ksi, 485-620 MPa 18

Alloy Steel Plate Thickness Chart in MM

Plate Thickness
(mm) 		Plate Weight
(kg/m2)
2.0 15.7
1.6 12.6
3 23.6
2.5 19.6
3.2 25.1
5 39.3
4 31.4
6 47.1
10 78.5
8 62.8
12.5 98.1
20 157
15 118
22.5 177
30 236
25 196
32 251
40 314
35 275
45 353
55 432
50 393
60 471
70 550
65 510
75 589
250 1963
90 707
80 628
150 1178
100 785
120 942
110 864
130 1051
180 1413
160 1256
200 1570

Alloy Steel Sheets 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 Sheets/Plates Equivalent Grades

Grade BS EN ASTM/ASME UNS DIN
Grade 5 – X12CrMo5 A387 / SA 387 S50200 –
Grade 9 – – A387 / SA 387 K90941 –
Grade 11 621B – A387 / SA 387 K11789 –
Grade 12 – – A387 / SA 387 K11757 –
Grade 22 622-515B 10 CRMO 910 A387 / SA 387 K21590 10 CRMO 910
EN24 / 4340 EN24T / 817M40 – – – 1.6582

Frequently Asked Questions About Alloy Steel Plates

Alloy steel sheets are produced using hot rolling or cold rolling methods. Processes like annealing, quenching, and tempering are applied to achieve desired mechanical properties, followed by finishing and polishing for a smooth surface.

Popular grades include ASTM A387 (Grades 5, 9, 11, 12, 22, 91), AISI/SAE 4100 series (4130, 4140, 4340, 8620), and EN grades (EN9, EN16).

They offer high strength, toughness, corrosion resistance, wear resistance, weldability, and durability, making them ideal for industrial, automotive, and structural applications.

Factors include grade, mechanical properties, corrosion resistance, thickness, size, intended application, and industry standards.

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