Alloy Steel Plates Supplier & Exporter in India

Alloy Steel Plates are widely used in industries requiring high tensile strength, elevated temperature resistance, pressure handling capability, wear resistance, and long operational reliability. As a leading Alloy Steel Plates Supplier & Exporter in India, CEBEX STEEL INDIA supplies premium-quality alloy steel plates manufactured according to international ASTM, ASME, DIN, EN, and ISO standards for critical industrial and engineering applications.

Our Alloy Steel Plates are extensively utilized in pressure vessels, boilers, heat exchangers, petrochemical plants, refineries, thermal power plants, offshore platforms, cement plants, heavy engineering, fabrication industries, and structural engineering projects because of their superior mechanical strength, creep resistance, oxidation resistance, and excellent weldability.

At CEBEX STEEL INDIA, we utilize advanced rolling, heat treatment, leveling, ultrasonic inspection, and precision cutting technologies to supply Alloy Steel Plates with excellent dimensional accuracy, superior surface quality, and consistent metallurgical properties. Our products are trusted by EPC contractors, fabrication industries, engineering companies, industrial buyers, and infrastructure developers across India, Africa, the Middle East, Europe, and Southeast Asia.

Alloy Steel Plates Supplier & Exporter in India – ASTM A387 P5, P11, P22, P91 Grades | Cebex Steel India

Why Choose Us as Your Alloy Steel Plates Supplier & Exporter?

Choosing the right Alloy Steel Plates supplier is essential for ensuring strength, pressure resistance, dimensional precision, weldability, and long-term industrial performance. CEBEX STEEL INDIA has established itself as a trusted Alloy Steel Plates Supplier & Exporter in India through strong technical expertise, strict quality control systems, and dependable worldwide export services.

We maintain complete traceability from raw material procurement to finished plate dispatch and provide all materials with EN 10204 3.1/3.2 Mill Test Certificates, inspection reports, and export documentation. Our in-house quality department performs comprehensive testing including chemical analysis, tensile testing, hardness testing, ultrasonic testing, PMI testing, dimensional inspection, and surface quality verification to ensure compliance with ASTM and customer project specifications.

Our export logistics team efficiently manages seaworthy packaging, export documentation, and international shipping for smooth global deliveries.

Product Overview & Key Features

Our Alloy Steel Plates are manufactured using premium-quality alloy steel raw materials sourced from approved mills and processed through advanced manufacturing technologies to ensure superior strength, heat resistance, pressure handling capability, and durability.

Feature	Specification / Detail
Standards	ASTM, ASME, DIN, EN, ISO
ASTM Specification	ASTM A387 / ASTM A204
Alloy Steel Grades	P5, P9, P11, P12, P22, P91
UNS Grades	K41545, S50400, K11597
Thickness Range	5 mm to 150 mm
Width Range	1000 mm to 3500 mm
Length Range	2000 mm to 12000 mm
Forms Available	Plates, Sheets, Coils
Surface Finish	Hot Rolled, Pickled, Polished
Manufacturing Process	Hot Rolled, Heat Treated
Documentation	EN 10204 3.1/3.2, MTC, Inspection Reports

Types of Alloy Steel Plates We Supply & Export

Our product portfolio includes a comprehensive range of Alloy Steel Plates suitable for high-temperature, pressure vessel, and industrial engineering applications. We supply pressure vessel alloy steel plates for boilers and reactors, hot rolled alloy steel plates for heavy structural fabrication, quenched and tempered alloy plates for high-strength applications, and heat-resistant alloy steel plates for elevated temperature service.

We also supply custom-cut alloy steel plates, polished plates, fabricated plates, CNC-cut components, and industrial-grade alloy steel products according to customer drawings and project specifications.

Grades, Materials & International Standards

Material selection plays a critical role in determining heat resistance, pressure resistance, mechanical strength, creep resistance, and weldability. We supply Alloy Steel Plates in internationally approved grades suitable for demanding industrial and engineering environments.

Alloy Steel Grade	Typical Applications	Standards
ASTM A387 Grade 5	Refineries & High Temperature Service	ASTM A387
ASTM A387 Grade 9	Pressure Vessels & Boilers	ASTM A387
ASTM A387 Grade 11	Heat Exchangers & Power Plants	ASTM A387
ASTM A387 Grade 12	Industrial Boilers & Reactors	ASTM A387
ASTM A387 Grade 22	Petrochemical & Offshore Industries	ASTM A387
ASTM A387 Grade 91	High Pressure & Thermal Power Plants	ASTM A387

All alloy steel materials are sourced from reputed mills and supplied with complete traceability, inspection reports, and EN 10204 3.1/3.2 Mill Test Certificates.

Chemical Composition & Mechanical Properties

Every Alloy Steel Plate supplied by CEBEX STEEL INDIA includes complete chemical composition and mechanical property reports to ensure compliance with international standards and industrial project requirements.

Chemical Composition – ASTM A387 Grade 11

Element	Composition (%)
Chromium (Cr)	1.0 – 1.5
Molybdenum (Mo)	0.44 – 0.65
Carbon (C)	0.05 – 0.17
Manganese (Mn)	0.40 – 0.65
Silicon (Si)	0.50 – 1.0
Iron (Fe)	Balance

Mechanical Properties – ASTM A387 Grade 11

Property	Value
Tensile Strength	415 – 585 MPa
Yield Strength	240 MPa Min
Elongation	22% Min

Chemical Composition – ASTM A387 Grade 22

Element	Composition (%)
Chromium (Cr)	2.0 – 2.5
Molybdenum (Mo)	0.87 – 1.13
Carbon (C)	0.05 – 0.15
Manganese (Mn)	0.30 – 0.60
Silicon (Si)	0.50 Max
Iron (Fe)	Balance

Mechanical Properties – ASTM A387 Grade 22

Property	Value
Tensile Strength	415 – 585 MPa
Yield Strength	205 MPa Min
Elongation	22% Min

Our quality department conducts spectrographic analysis, tensile testing, hardness testing, ultrasonic inspection, impact testing, PMI testing, and dimensional verification using calibrated inspection equipment.

Equivalent Grades

A387 Grade 11 Equivalent Grades

Standard	Grade
ASTM	A387 Grade 11
UNS	K11757
EN	13CrMo4-5
DIN	1.7335

A387 Grade 22 Equivalent Grades

Standard	Grade
ASTM	A387 Grade 22
UNS	K21590
EN	10CrMo9-10
DIN	1.7380

Dimensions, Sizes & Weight Chart

We supply Alloy Steel Plates in thicknesses ranging from 5 mm to 150 mm with customized cutting services according to industrial project requirements. Standard plate widths range from 1000 mm to 3500 mm while custom dimensions are available upon request.

Thickness	Approx Weight per Sq. Meter
6 mm	47.1 Kg
10 mm	78.5 Kg
12 mm	94.2 Kg
25 mm	196.2 Kg
50 mm	392.5 Kg

Additional processing services including plasma cutting, laser cutting, beveling, bending, drilling, edge preparation, CNC machining, and custom fabrication are available according to customer specifications.

Applications & Industries Served

Our Alloy Steel Plates are extensively used in industries requiring high-temperature resistance, pressure handling capability, and excellent mechanical performance. Power generation industries utilize alloy steel plates for boilers, pressure vessels, superheaters, and heat recovery systems because of their excellent creep resistance and thermal stability.

Petrochemical and refinery industries use alloy steel plates for reactors, pressure equipment, heat exchangers, and process systems operating under high pressure and elevated temperatures. Alloy steel plates are also widely used in offshore platforms, heavy engineering, cement plants, oil & gas industries, fabrication industries, structural engineering, thermal power plants, and industrial processing systems.

Testing & Quality Assurance

Quality assurance is one of the core strengths of our manufacturing and export operations. Every Alloy Steel Plate undergoes strict inspection and testing procedures including dimensional inspection, chemical analysis, tensile testing, hardness testing, ultrasonic testing, PMI testing, impact testing, and visual surface inspection.

Our quality control department utilizes advanced inspection equipment including spectrometers, hardness testing machines, ultrasonic flaw detectors, and dimensional measurement systems to ensure compliance with ASTM, ASME, DIN, EN, and customer project requirements.

Packing, Delivery & Export Capabilities

We understand the importance of secure packaging and timely delivery for industrial and export projects. Our Alloy Steel Plates are packed using export-grade wooden pallets, waterproof wrapping materials, edge protection systems, and seaworthy packaging to ensure complete protection during transportation.

Our export logistics department manages complete shipping documentation including commercial invoices, packing lists, certificates of origin, mill test certificates, and inspection reports for smooth customs clearance and worldwide shipping.

Exporting Alloy Steel Plates to Africa

As a leading Alloy Steel Plates Supplier & Exporter in India, we have built a strong reputation for supplying high-quality alloy steel plates to major projects across Africa. Our export team understands the unique requirements of African industries and ensures smooth, timely deliveries with complete documentation and compliance. From oil and gas to power and infrastructure, our alloy steel plates are trusted by clients in Nigeria, Egypt, Kenya, South Africa, Ethiopia and beyond.

Related Alloy Sheets & Plates – Stainless Steel, Duplex Steel, Super Duplex, Nickel Alloy, Inconel, Monel, Hastelloy, Titanium

In addition to Alloy Steel Plates, we also supply and export Stainless Steel Sheets, Duplex Steel Plates, Super Duplex Plates, Inconel Plates, Hastelloy Plates, Monel Plates, and Titanium Plates. These high-performance alloy sheets and plates deliver exceptional corrosion resistance, superior mechanical strength, outstanding high-temperature stability, and proven long-term reliability in the harshest industrial environments.

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Why Choose CEBEX STEEL INDIA?

Clients choose CEBEX STEEL INDIA because of our strong technical expertise, strict quality control systems, competitive export pricing, and dependable worldwide delivery capabilities. We provide flexible order quantities, fast production schedules, custom processing services, technical support, worldwide shipping, third-party inspection support, and project-based supply solutions for industrial and EPC projects.

Our engineering team assists clients in selecting the appropriate alloy steel grades and specifications based on operating temperatures, pressure requirements, corrosion exposure, fabrication requirements, and mechanical performance expectations.

Frequently Asked Questions (FAQ)

What standards do your Alloy Steel Plates comply with?

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Our Alloy Steel Plates comply with ASTM A387, ASME, DIN, EN, and ISO standards with complete certification and traceability.

Which alloy steel grades do you supply?

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We supply ASTM A387 Grade 5, Grade 9, Grade 11, Grade 12, Grade 22, and Grade 91 alloy steel plates.

Can you provide mill test certificates?

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Yes, every shipment includes EN 10204 3.1/3.2 Mill Test Certificates along with inspection and testing reports.

What plate sizes are available?

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We supply alloy steel plates in thicknesses from 5 mm to 150 mm with custom widths and cut sizes available.

Do you provide custom cutting and fabrication services?

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Yes, we provide plasma cutting, beveling, drilling, bending, CNC machining, and custom fabrication services according to customer specifications.