HRS Ferritic · Certified Supplier, Stockist & Importer

SS 409M CK-201 RDSO
Spec Coils & Plates

Ferritic Stainless Steel · RDSO Compliant · Excellent Corrosion Resistance · Railway & Structural Grade · Global Supply

ASTM A240 / ASME SA240 UNS S40977 EN 1.4003 JIS SUS 410L
📋 Table of Contents
1Introduction to SS 409M CK-201
2What is SS 409M CK-201 RDSO?
3Metallurgical Characteristics
4Specifications
5Available Stock
6Types of SS 409M Plates
7Chemical Properties
8Mechanical Properties
9Pricing List
10Equivalent Grades
11FAQs
HRS Ferritic · SS 409M CK-201 Supplier & Stockist

Introduction to
SS 409M CK-201 RDSO Spec Coils & Plates

HRS Ferritic is a reliable Ferritic Stainless Steel Plates Supplier, Stockist and Importer. We source SS 409M RDSO Spec Coils and Plates from reputable global manufacturers, serving railways, automotive, chemical processing and infrastructure industries.

  • Protective chromium dioxide layer preventing corrosion
  • Ferritic microstructure ensuring low thermal expansion
  • Resistance to thermal and mechanical stress deformation
  • Stable mechanical behaviour for load-bearing applications
  • High magnetic properties for specific engineering needs
  • RDSO compliant for railway and structural applications
SS 409M CK-201 RDSO Spec Plates in India
RDSOCK-201 Compliant
Grade Overview

SS 409M CK-201 RDSO Spec Coils & Plates

Ferritic stainless products designed to RDSO specifications with high chromium content and low nickel. Provides excellent corrosion resistance, good thermal stability and good weldability — widely used in railway, automotive, industrial processing and infrastructure applications where durable and cost-effective materials are required.

10.5–11.75%
Chromium Content
RDSO
CK-201 Compliant
380–480
Tensile Strength MPa
0.5–100
Thickness Range mm
Composition Analysis

Metallurgical Characteristics & Performance

Each element in SS 409M CK-201 plays a precise role in delivering exceptional corrosion resistance and structural performance.

Cr
Chromium
Provides corrosion and oxidation resistance; forms a protective passive layer in atmospheric and high-temperature environments.
C
Carbon
Increases strength and hardness; low levels ensure good weldability and minimize carbide precipitation.
Ti
Titanium
Stabilizes carbon to prevent intergranular corrosion; improves weldability and high-temperature durability.
Mn
Manganese
Enhances tensile strength, toughness and hot-working properties; helps in deoxidation during steelmaking.
Si
Silicon
Improves oxidation resistance and high-temperature performance; also acts as a deoxidizer.
P
Phosphorus
Slightly improves strength and atmospheric corrosion resistance; excess can reduce ductility.
S
Sulfur
Improves machinability but is kept low to maintain ductility and toughness.
Fe
Iron
Base metal providing structural strength, magnetic properties and support for the ferritic microstructure.
Technical Data

Specifications — SS 409M CK-201 RDSO Spec Plates / Coils

ASTM A240 · ASME SA240 · UNS S40977

Specification Details
ASTM / ASME ASTM A240 / ASME SA240
UNS S40977
EN / DIN EN 1.4003
ISO X2CrNi12
JIS SUS 410L
Thickness Range 0.5 mm to 100 mm
Standard Widths 1000, 1219, 1250, 1500, 1800, 2000, 2500, 3000, 3500 mm
Standard Lengths 2000, 2440, 2500, 3000, 5800, 6000 mm
Surface Finish Hot Rolled (HR), Cold Rolled (CR), Annealed & Pickled (AP)
Supply Condition Solution Annealed
Cutting Methods Plasma, Laser, Waterjet, Oxy Propane
Packaging Bundled, Wooden Plates, Bubble Wrap, Customized
Inventory

Available Stock & Product Forms

🪨

Plates

High-quality flat plate products in various thicknesses for structural and railway applications.

🌀

Coils

Precision-rolled coils for fabrication and forming operations in industrial applications.

🔲

Sheets

Flat sheets with superior surface finish for precision fabrication requirements.

✂️

Cut-to-Size

Custom-cut plates and coils to meet specific project dimensions and requirements.

🧪

Chromium (Cr)

10.5–11.75% — Forms protective passive layer for corrosion and oxidation resistance.

✨

Titanium (Ti)

Added — Stabilizes carbon, prevents intergranular corrosion and improves weldability.

⚫

Carbon (C)

≤ 0.03% — Low level for good weldability and minimal carbide precipitation.

⚖️

Nickel (Ni)

≤ 0.75% — Low nickel for cost-effectiveness while maintaining toughness.

💪

Tensile Strength

380–480 MPa — Good strength for railway and structural applications.

🎯

Yield Strength

≥ 205 MPa — Consistent properties for forming operations.

📏

Elongation

≥ 20% — Excellent ductility for fabrication.

🔬

Hardness

≤ 200 HB — Consistent machinability and surface quality.

Product Range

Types of SS 409M CK-201 RDSO Spec Plates / Coils

Choose from a wide range of finishes and forms based on your application and project requirements.

Hot Rolled Ferritic Steel Plates
Cold Rolled Plates
Annealed and Pickled Plates
Coils for Fabrication
Customized and Cut-to-Size Plates
Application Sectors

Industries We Serve

Sugar
Sugar Industry
Global cane and beet processing requiring thermal endurance.
Power
Power Industry
Electricity generation and distribution systems.
Ship Building
Ship Building
Marine propulsion and exhaust components.
Mechanical
Mechanical & Plant Engineering
Industrial machinery design solutions.
Food
Food, Beverage & Dairy
Processed food manufacturing environments.
Oil Gas
Oil & Gas Plant
Refinery furnace units and burner assemblies.
Chemical Composition

Chemical Properties of SS 409M CK-201 RDSO Spec Plates / Coils

High chromium content with low nickel composition provides excellent corrosion resistance, good thermal stability and good weldability at a cost-effective price point compared to high-nickel steels.

Element Composition (%)
Carbon (C) ≤ 0.03
Chromium (Cr) 10.5 – 11.75
Nickel (Ni) ≤ 0.75
Manganese (Mn) ≤ 1.0
Silicon (Si) ≤ 1.0
Phosphorus (P) ≤ 0.04
Sulfur (S) ≤ 0.03
Performance Data

Mechanical Properties of SS 409M CK-201 RDSO Spec Plates / Coils

380–480
Tensile Strength
MPa — Good strength for railway and structural applications
≥205
Yield Strength
MPa — Consistent properties for forming operations
≥20%
Elongation
Excellent ductility for fabrication and forming
≤200
Hardness
HB — Ensures machinability and surface quality
Cost Information

Pricing List for SS 409M CK-201 RDSO Spec Plates / Coils

Price Factors

What affects the price?

  • Fluctuations of raw materials and chromium prices
  • Dimensions and surface finish for sheet or coil
  • Quantity requirements and customization
  • Import duties and freight
Get Pricing Today
Get A Quote!
Transparent pricing · Bulk orders · Timely delivery
📧 info@hrsferritic.com
International Standards

Equivalent Grades for SS 409M CK-201 RDSO Spec Plates / Coils

SS 409M CK-201 is recognized across all major global standards with equivalent metallurgical designations.

Standard Equivalent Grade / Designation
RDSO X2CrNi12 (CK201)
EN X2CrNi12 (EN 1.4003)
DIN 1.4003
UNS S40977
ISO X2CrNi12 / ISO 15510
BS X2CrNi12
AFNOR X2CrNi12
JIS (Japan) SUS 410L
GOST (Russia) Similar ferritic grades in the 3Cr12 family
GB (China) Comparable ferritic SS related to 1.4003 family
UNI (Italy) X2CrNi12 (consistent with EN/ISO naming)
SS (Sweden) Equivalent ferritic family grade for 1.4003
📦
Ready Stock & Product Forms
  • Flat Products: Precision sheets, heavy plates, shim sheets
  • Coils & Strips: Slitting coils, perforated coils, thin foils from 0.05 mm
  • Speciality Forms: Circles, rings, custom-cut blanks, chequered plates
  • Edge Conditions: Mill edge, slit edge, round edge, square edge
🏭
Quality Assurance & Logistics
  • Testing: PMI, UT, Radiography, corrosion testing
  • Certification: EN 10204 3.1 / 3.2, NACE on request
  • Global Supply: USA, UAE, Saudi Arabia, Singapore, Indonesia, Europe
  • Export Packaging: ISPM-15 fumigated crates, shrink-wrapped & moisture-protected
Use Cases

Applications of SS 409M CK-201 RDSO Spec Plates / Coils

🌾 Fertilizer Industry
Hoppers, conveyors and processing equipment to resist chemical corrosion and humidity.
🧪 Chemical Processing
Reactor vessels, tanks, ducting and structural frames for mild acids and alkalis.
✈️ Aerospace
Ground support gear, panels, brackets and protective housings.
⛽ Oil & Gas
Skid supports, equipment housings and storage systems in corrosive environments.
💊 Pharmaceutical
Cleanroom enclosures, storage systems and utility ducts for hygiene and easy cleaning.
🏗️ Construction
Bridges, railway coaches, platforms, cladding and structural frameworks.
⚡ EV & Electrical
Battery enclosures and power cabinets for heat and vibration protection.
🚗 Automotive
Exhaust systems, heat shields and underbody panels with thermal and corrosion resistance.
Why HRS Ferritic

Why Choose HRS Ferritic for SS 409M CK-201 RDSO Plates / Coils?

HRS Ferritic has been a leading Ferritic stainless steel plate supplier and importer, delivering quality, durability and value for all industrial and infrastructure needs. Contact us for premium SS 409M CK-201 RDSO plates and coils.

Licensed stockist ready to ship
Direct sourcing from global manufacturers
Bulk supply and competitive pricing
RDSO compliant materials
Fast delivery, custom sizes & finishes
Experienced technical support team
On-time delivery, export-grade packaging
Supply to 20+ countries worldwide
🇮🇳

Cities We Supply In India

New Delhi · Ahmedabad · Jaipur · Surat · Salem · Gandhinagar · Varanasi · Haldia · Bhiwandi · Tiruppur · Jamnagar · Thiruvananthapuram · Rajahmundry · Visakhapatnam · Bhubaneswar · Vijaywada · Rajkot · Bharuch · Coimbatore · Nagpur · Raipur · Cochin · Ludhiana · Panipat · Durgapur · Agra · Indore · Kuala Lumpur · Al Jubail · Pimpri-Chinchwad · Sharjah · Karachi · Chandigarh · Bogota · Muscat · Madrid · Tehran · Granada · Jakarta · Los Angeles · Rio de Janeiro · Melbourne · Cairo · New York · Busan · Milan · Montreal · Singapore · Sydney · Dubai · Lagos · Gurgaon · Port-of-Spain · Hong Kong · Navi Mumbai · Secunderabad · Bangkok · Aberdeen · Bhopal · Atyrau · Caracas · Jamshedpur · Thane · Faridabad · Ahvaz · Ahmedabad · Hanoi · Bengaluru · Dallas · Moscow · Surat · Riyadh · Rajkot · Al Khobar · Hyderabad · Haryana · Ernakulam · Gimhae-si · Algiers · Thiruvananthapuram · Brisbane · Calgary · Mumbai · Chennai · Courbevoie · Toronto · Vung Tau · Ankara · Doha · Nagpur · Howrah · Ranchi · Perth · Noida · Houston · Kolkata · Chiyoda · Mexico City · Edmonton. Geoje-si · Abu Dhabi · Santiago · New Delhi · Colombo · Ludhiana · Lahore · Coimbatore · Ho Chi Minh City · Manama · Ulsan · London · Visakhapatnam · Jaipur · Kuwait City · Seoul · Istanbul · Pune · Baroda · Kanpur · La Victoria · Jeddah · Dammam · Petaling Jaya · Nashik · Vadodara ·jamnagar ·hazira · jubail industrial city · Ajman · Capetown · San Francisco · sao paulo · Barcelona · Ahmedi · Muscat · Madrid · Birmingham · Johannesburg.
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Countries We Export To

Saudi Arabia · Qatar · Canada · Sri Lanka · Iran · Nigeria · Bangladesh · Oman · UAE · Turkey · Kuwait · Venezuela · Africa · Singapore · Netherlands · United Kingdom · Mexico · Malaysia · United States · Australia · Japan Saudi Arabia · Iran · Iraq · UAE · Qatar · Bahrain · Oman · Kuwait · Turkey · Yemen · Syria · Jordan · Cyprus · Nigeria · Algeria · Angola · South Africa · Libya · Egypt · Sudan · Equatorial Guinea · The Republic Of Congo · Gabon · USA · Canada · Mexico · Panama · Costa Rica · Puerto Rica · Trinidad And Tobago · Jamaica · Bahamas · Denmark · Russia · Norway · Germany · France · Italy · Uk · Spain · Ukraine · Netherland · Belgium · Greece · Czech Republic · Portugal · Hungary · Albania · Austria · Switzerland · Slovakia · Finland · Ireland · Croatia · Slovenia · Malta · India · Singapore · Malaysia · Indonesia · Thailand · Vietnam · South Korea · Japan · Sri Lanka · Maldives · Bangladesh · Myanmar · Taiwan · Cambodia · Argentina · Bolivia · Brazil · Chile · Venezuela · Colombia · Ecuador · Guyana · Paraguay · Uruguay · New Zealand · Romania · Puerto Rico · Nepal · Kenya · Afghanistan · Lithuania · Belarus · Zimbabwe · Israel · Azerbaijan · Poland · Australia · Morocco · Philippines.
Support

Frequently Asked Questions

Quick answers to common queries about SS 409M CK-201 RDSO Spec Plates / Coils.

SS 409M CK-201 RDSO Spec Plates are widely used in coach side walls, underframes, and structural reinforcements manufactured as per Research Designs and Standards Organisation standards.
Yes, these plates are commonly used in wagon body panels and load-bearing sections due to their high strength and corrosion resistance.
These plates are suitable for structural railway components requiring good weldability, durability, and resistance to atmospheric corrosion.
They are preferred because they offer a cost-effective combination of strength, formability, and long service life in railway environments.
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