HRS Ferritic · Certified Manufacturer & Exporter

SS409M Ck201 RDSO Spec Sheets & Coils

Ferritic Stainless Steel · RDSO Compliant · Chromium-Based Grade · High Thermal Stability · Global Supply

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

Introduction to
SS409M Ck201 RDSO Spec Sheets & Coils

HRS Ferritic is known as a leader in the ferritic steel industry and is also known to deliver high-quality products that meet industrial and railway standards. We are a reliable Ferritic Stainless Steel Sheet Supplier, Ferritic Stainless Steel Sheet Stockist and Ferritic Stainless Steel Sheet Importer. We source SS 409M RDSO Spec sheets, coils and sheets from certified and valuable global manufacturers.

  • Protective chromium dioxide layer resists corrosion
  • Ferritic microstructure with low thermal expansion
  • High oxidation resistance at elevated temperatures
  • Stable mechanical properties under vibration and load
  • Magnetic properties for engineering applications
  • Cost-effective vs. higher alloyed stainless grades
SS 409M RDSO Spec Sheet in India
RDSOCompliant Grade
Grade Overview

What are SS 409M RDSO Spec Sheets / Coils?

SS409M Ck201 RDSO Spec Sheets / Coils are flat ferritic stainless products manufactured to RDSO specifications. SS 409M ferritic steel is a chromium-based grade that offers excellent corrosion resistance, weldability and high thermal stability. Widely used in railway, automobile, infrastructure and industrial applications.

11%
Chromium Content
Ti
Titanium Stabilized
380–480
Tensile Strength MPa
0.5–100
Thickness Range mm
Composition Analysis

Metallurgical Characteristics & Performance

Each element in SS 409M plays a precise role in delivering exceptional durability and thermal performance.

Cr
Chromium
Provides corrosion and oxidation resistance; forms a protective passive layer in atmospheric and high-temperature environments.
Ti
Titanium
Stabilizes carbon to prevent intergranular corrosion; improves weldability and high-temperature durability.
C
Carbon
Increases strength and hardness; low levels ensure good weldability and minimize carbide precipitation.
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 Sheets / Coils

ASTM A240 · ASME SA240 · UNS S40977

Specification Details
ASTM / ASME ASTM A240 / ASME SA240 (Plate, Sheet, and Strip)
UNS S40977
EN / DIN EN 1.4003
ISO X2CrNi12
JIS SUS 410L
Product Form Sheets / Plates
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

🪨

Sheets

High-quality flat sheet products in various thicknesses for industrial and railway applications.

🔩

Coils

Precision-rolled coils for specialized forming and fabrication operations.

✂️

Cut-to-Length

Custom cut sheets to exact project dimensions with minimal wastage.

🌀

Strips

Slit strips from coils for narrow-width applications in precision engineering.

🧪

Chromium (Cr)

10.5–11.75% — Core element for ferritic structure and corrosion resistance.

✨

Nickel (Ni)

≤ 0.75% — Low nickel content ensures cost stability.

⚫

Carbon (C)

≤ 0.03% — Low level ensures weldability and ductility.

⚖️

Iron (Fe)

Balance — Magnetic behaviour and stable mechanical foundation.

💪

Tensile Strength

380–480 MPa — Exceptional for demanding structural applications.

🎯

Yield Strength

≥ 205 MPa — Consistent properties for forming operations.

📏

Elongation

≥ 20% — Excellent ductility for cold-forming.

🔬

Hardness

≤ 200 HB — Consistent machinability and surface quality.

Product Range

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

Choose from a wide range of types based on your application and precision requirements.

Cold Rolled Ferritic Steel Sheets
Hot Rolled Stainless Steel Sheets
Coils SS 409M
Cut-to-Length Sheets
Customized Surface-Finished Sheets
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 Sheets / Coils

Titanium stabilization in SS 409M aids in improving corrosion resistance and enhancing welding quality for RDSO-compliant applications.

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 Sheets / Coils

380–480
Tensile Strength
MPa — Exceptional for demanding structural applications
≥ 205
Yield Strength
MPa — Ideal for forming and fabrication
≥ 20%
Elongation
Minimum — Excellent ductility for cold-forming
≤ 200 HB
Hardness
Maximum — Ensures machinability
Cost Information

Price List for SS 409M CK-201 RDSO Spec Sheets / Coils

Price Factors

What affects the price?

  • Price fluctuations of raw materials and chromium
  • Dimensions and finish of sheets or coils
  • Customization and order volume
  • Import duties, freight and logistics costs
Get Pricing Today
Get A Quote!
Transparent pricing · Bulk supply contracts · Fast delivery
📧 info@hrsferritic.com
International Standards

Equivalent Grades for SS 409M CK-201 RDSO Spec Sheets

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 specification series
BS X2CrNi12
AFNOR X2CrNi12
JIS (Japan) SUS 410L
GOST Similar ferritic grades in the 3Cr12 family (approximate equivalent)
GB / GB-T (China) Comparable ferritic stainless steel related to the 1.4003 family
UNI X2CrNi12 designation consistent with EN/ISO naming
SS Equivalent ferritic family grade corresponding to 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 (tread) plates
  • Edge Conditions: Mill edge, slit edge, round edge, square edge
🏭
Quality Assurance & Global Logistics
  • Testing: PMI, Ultrasonic Testing (UT), Radiography (RT), corrosion testing
  • Certification: EN 10204 3.1 / 3.2, NACE compliance (on request)
  • Global Supply: USA, UAE, Saudi Arabia, Singapore, Indonesia, Europe
  • Export Packaging: ISPM-15 fumigated wooden crates, shrink-wrapped & moisture-protected
Use Cases

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

🌾 Fertilizer Industry
Storage chutes, conveyors and hoppers resistant to chemicals and moisture.
🧪 Chemical Processing
Heat exchangers, tanks, reactor vessels and ducting for mild acid and alkali environments.
✈️ Aerospace
Ground support equipment, panels, brackets and protective casings with thermal stability.
⛽ Oil & Gas
Skid supports, equipment housings and storage systems in high-temperature environments.
💊 Pharmaceuticals
Cleanroom enclosures, equipment enclosures and storage systems supporting hygiene.
🏗️ Infrastructure & Construction
Railway carriages, bridges, platforms, cladding and structural frameworks for long life.
⚡ EV & Electrical
Battery enclosures and power cabinets protecting components from heat and vibration.
🚗 Automotive
Exhaust systems, heat shields and underbody panels with vibration and corrosion resistance.
Why HRS Ferritic

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

With years of experience, HRS Ferritic is a reliable Ferritic Stainless Steel Sheet Supplier and Importer. It delivers quality, reliability and value to clients worldwide through technological expertise and dedicated service.

Trusted Ferritic SS Sheet Stockist with ready stock
Direct sourcing from certified global manufacturers
Bulk supply with competitive pricing
Quality assurance and RDSO compliance
Fast delivery, custom sizes and finishes
Experienced technical and commercial 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 Sheets / Coils.

They are mainly used in railway wagons, automotive exhaust components, and structural applications requiring corrosion resistance and high-temperature durability.
It offers good atmospheric and oxidation resistance, making it suitable for outdoor and moderately corrosive environments.
Yes, its ferritic structure with titanium stabilization ensures excellent weldability and good formability for fabrication processes.
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