HRS Ferritic · 321 Stainless Steel Plate Supplier, Stockist & Importer

321 Stainless Steel Plates
AISI 321 Plates

Titanium-Stabilized Austenitic Grade · Exceptional Intergranular Corrosion Resistance · Superior High-Temperature Stability · Global Industrial Supply

ASTM A240 / AISI 321 UNS S32100 EN 1.4541 JIS SUS 321
📋 Table of Contents
1What is 321 Stainless Steel Plate?
2Working Mechanism
3Metallurgical Characteristics
4Specifications
5Available Stock
6Types of 321 SS Plate
7Chemical Details
8Mechanical Properties
9Pricing Information
10Equivalent Grades
11FAQs
HRS Ferritic · Trusted 321 Stainless Steel Plate Supplier

What is 321 Stainless Steel Plate?

HRS Ferritic is a well-established and trusted 321 stainless steel Plate Supplier, Stockist, and Importer, delivering premium-grade stainless steel plates sourced from valuable and certified global manufacturers. 321 stainless steel plate is a titanium-stabilized austenitic stainless steel that is specially designed to resist intergranular corrosion. It is widely used in high-temperature applications where resistance to oxidation and durability are required.

  • Excellent resistance to intergranular corrosion
  • Suitable for extreme high-temperature applications
  • Maintains strength and stability after welding
  • Minimal maintenance due to corrosion resistance
  • Long service life reduces replacement costs
  • Performs well under thermal cycling conditions
  • Ideal for industries dealing with heat and chemicals
  • Highly stable titanium-stabilized structure
321 Stainless Steel Plate Stockist India
TiStabilized
Working Mechanism

The Science Behind Grade 321 Performance

In 321 grade, titanium reacts with carbon to form titanium carbides instead of chromium carbides. This process preserves chromium in the alloy, ensuring long-term intergranular corrosion resistance even in high heat.

17–19%
Chromium (Cr)
Austenitic
Crystal Structure
≥ 515
Tensile Strength MPa
0.5–100
Thickness Range mm
Composition Analysis

Metallurgical Characteristics of 321 Stainless Steel Plate

The addition of Titanium and controlled levels of Nickel and Chromium define the high performance of this grade.

Cr
Chromium
Forms a protective oxide layer and prevents rusting and high-temp oxidation.
Ni
Nickel
Improves toughness, strength, and flexibility of the austenitic structure.
Ti
Titanium
Stabilizes the structure and prevents harmful carbide formation at grain boundaries.
C
Carbon
Enhances strength but is controlled to avoid intergranular corrosion issues.
Mn
Manganese
Supports workability, toughness, and assists in the deoxidization process.
Si
Silicon
Improves resistance to oxidation and scaling at elevated temperatures.
P&S
Phosphorus & Sulfur
Present in trace amounts; affecting the overall machinability and weld quality.
Fe
Iron
The base element constituting approximately 65–70% of the total alloy composition.
Technical Data

Specifications for 321 Stainless Steel Plate

ASTM A240 · AISI 321 · UNS S32100 · EN 1.4541

Specification Details
ASTM / ASME ASTM A240 / ASME SA240 (Plate, Sheet, and Strip)
UNS UNS S32100
EN / DIN 1.4541 / X6CrNiTi18‑10
ISO ISO X6CrNiTi18‑10
JIS SUS 321
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
Custom Processing Available Custom Width & Length Cuts
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 wraps, Customized
Inventory

Ready Stock Availability & Product Forms

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Flat Products

Precision sheets, heavy plates, and shim sheets maintained in diverse dimensions.

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Coils & Strips

Slitting coils, perforated coils, and thin foils from 0.05 mm available.

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Speciality Forms

Circles, rings, custom-cut blanks, and chequered (tread) plates in stock.

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Edge Conditions

Mill edge, slit edge, round edge, and square edge options for all products.

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Chromium (Cr)

17–19% — Core element for corrosion resistance.

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Nickel (Ni)

9–12% — Enhances ductility and toughness.

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Titanium (Ti)

0.20–0.70% — Crucial for stabilization against intergranular corrosion.

⚙️

Carbon (C)

≤ 0.08% — Controlled levels to maintain weldability.

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Tensile Strength

≥ 515 MPa — High strength for demanding industrial loads.

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Yield Strength

≥ 205 MPa — Ensuring structural stability under stress.

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Elongation

≥ 40% — Exceptional ductility for complex forming.

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Hardness

≤ 217 HB — Balanced hardness for durability and processing.

Product Range

Types of 321 Stainless Steel Plate

We offer various surface finishes and processing conditions to match your specific engineering needs.

Hot Rolled 321 Stainless Steel Plate
Cold Rolled 321 Stainless Steel Plate
Annealed 321 Stainless Steel Plate
Pickled 321 Stainless Steel Plate
Polished / Mirror Finish 321 Plate
Brushed / Satin Finish 321 Plate
Custom Cut-to-Size 321 SS Plate
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 Details

Chemical Properties of 321 Stainless Steel Plate

Typical composition balance ensures Titanium stabilization and maximum corrosion resistance.

Element Typical % Composition
Iron (Fe) Balance (~65–70%)
Chromium (Cr) 17–19%
Nickel (Ni) 9–12%
Titanium (Ti) 0.20–0.70%
Carbon (C) ≤ 0.08%
Manganese (Mn) ≤ 2%
Silicon (Si) ≤ 1%
Nitrogen (N) ≤ 0.10%
Performance Data

Mechanical Properties of 321 Stainless Steel Plate

≥ 515 MPa
Tensile Strength
Ultimate strength for severe industrial environments
≥ 205 MPa
Yield Strength
Maintaining structure at 0.2% offset
≥ 40 %
Elongation
Superior ductility for fabrication and bending
≤ 217 HB
Hardness (Brinell)
Controlled hardness for durable surface performance
Very Good
Creep Resistance
High stability at elevated service temperatures
870 °C
Thermal Stability
Maintains strength at elevated temps up to ~870°C
Cost Information

Price List for 321 Stainless Steel Plate

Price Factors

What affects the 321 price?

  • Nickel and Chromium market fluctuations
  • Plate thickness and custom dimensions
  • Surface finish and processing needs
  • Order volume and bulk discounts
  • Import duties and logistics costs
  • Specialized cut-to-size requirements
GET A FREE QUOTE
Get Quotation!
Contact HRS now for customized pricing and export guidance.
📧 info@hrsferritic.com
International Standards

Equivalent Grades for 321 Stainless Steel Plate

Grade 321 is globally recognized for its intergranular corrosion resistance properties.

Standard / System Equivalent Grade
UNS / AISI (USA) S32100
ASTM / ASME ASTM A240 Type 321 / SA240 321
EN (Europe) 1.4541 / X6CrNiTi18‑10
DIN (Germany) X6CrNiTi18‑10
ISO (International) X6CrNiTi18‑10 (ISO 15510)
JIS (Japan) SUS 321
BS (UK) 321S11 / 321S16
AFNOR / NF (France) Z6CNDT18‑12
GB (China) 00Cr17Ni12Ti
GOST (Russia / CIS) 08Х18Н10Т
UNI (Italy) X6CrNiTi18‑10
AS (Australia) AS 1449 321
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Quality Assurance Documentation
  • Rigorous Testing: PMI, Ultrasonic Testing (UT), Radiography (RT), Corrosion Testing
  • Full Certification: EN 10204 3.1 / 3.2 compliance with every shipment
  • Industry Standards: NACE compliance available on request for specific projects
  • Logistics: Global supply to USA, UAE, Saudi Arabia, Singapore, Indonesia, and Europe
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Packaging & Delivery Excellence
  • Secure Export: ISPM-15 fumigated wooden crates and robust bundling
  • Moisture Protection: Shrink-wrapped and moisture-protected for sea transit
  • Reliable Network: Fast delivery through a well-established global logistics chain
  • Support: Expert technical guidance and long-term relationship focus
Why Choose Us

Why Choose HRS Ferritic for 321 Stainless Steel Plate?

HRS Ferritic is committed to delivering excellence and building long-term relationships with clients by providing high-quality titanium-stabilized stainless steel products. We are a dependable Importer and Supplier for demanding industrial thermal projects.

Reliable 321 Plate Supplier & Stockist
Materials sourced from certified global mills
Competitive pricing with bulk availability
Fast and reliable global delivery network
Customized solutions for 10+ industries
Full chemical & mechanical traceability
Expert technical support team
Commitment to consistent high-quality standards
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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.
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Frequently Asked Questions

Quick answers about 321 Stainless Steel Plates.

Thicker 321 plates naturally cost more because they use more raw material and are heavier to handle, requiring extra transportation and fabrication effort.
Yes, larger plates require more material and sometimes special shipping or storage, which increases the final cost. Handling oversized plates can also demand extra labour and equipment.
A polished, brushed, or mirror finish looks better but comes at a premium because of extra processing, polishing, and quality inspections.
Absolutely, 321 relies on nickel, chromium, and titanium; fluctuations in these metals cause the plate price to rise or fall based on market trends.
Typically yes, because titanium stabilization and enhanced high-temperature corrosion resistance make it ideal for chemical and heat-exposed environments, justifying the price.
Definitely, any non-standard length, width, or shape requires extra cutting, handling, and potential material waste, which adds to production and labour costs.
Plates with tighter tolerances require precise rolling and strict quality control, which increases manufacturing effort and ensures dimensional consistency.
321 is excellent for heat exchangers, furnace components, and exhaust systems, thanks to its titanium stabilization, corrosion resistance, and long-term durability.
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