HRS Ferritic · Certified Supplier & Stockist
SS 321 / AISI 321 Sheets
Supplier / Stockist / Exporter
Titanium-stabilized austenitic stainless steel designed to offer excellent resistance to intergranular corrosion · Superior weldability · High Temperature Oxidation Resistance · Long service life
ASTM A240 / ASME SA240
UNS S32100
EN 1.4541
JIS SUS 321
📋 Table of Contents
HRS Ferritic · SS 321 Sheet Supplier & Stockist
SS 321 / AISI 321 Sheets
Exporter / Importer / Supplier
HRS Ferritic is a trusted name in the stainless steel industry, known for delivering high-quality materials sourced from valuable and reliable mills worldwide. As a reputed 321 stainless steel sheet Supplier, 321 stainless steel sheet Stockist, and 321 stainless steel sheet Importer, we ensure consistent quality, competitive pricing, and timely delivery to meet diverse industrial requirements. Our commitment to quality, transparency, and customer satisfaction has positioned us as a preferred partner for global clients across multiple sectors.
- Excellent resistance to high-temperature oxidation
- Superior weldability without post-weld heat treatment
- Enhanced resistance to intergranular corrosion
- Long service life in extreme environments
- Cost-effective alternative to higher alloy grades
- Stabilized by Titanium addition
321Austenitic Grade
Grade Overview
Introduction & Overview — SS 321 Sheets / AISI 321 Sheets
321 stainless steel sheet is a titanium-stabilized austenitic stainless steel designed to offer excellent resistance to intergranular corrosion, especially after exposure to elevated temperatures. The addition of titanium prevents chromium carbide precipitation during welding or high-temperature service, making it ideal for heat-intensive applications. Titanium has a stronger affinity for carbon than chromium, which prevents the formation of chromium carbides at grain boundaries.
17.0 – 19.0%
Chromium Content
Ti Stabilized
Intergranular Resistance
515 min
Tensile Strength MPa
0.5–100
Thickness Range mm
Composition Analysis
Metallurgical Characteristics of SS 321 Sheet
The addition of titanium stabilizes the alloy by preventing chromium carbide formation, improving resistance to intergranular corrosion.
Fe
Iron
Primary base metal that forms the structure and provides overall strength.
Cr
Chromium
Responsible for corrosion resistance by forming a protective oxide layer.
Ni
Nickel
Enhances toughness, ductility, and resistance to oxidation at high temps.
Ti
Titanium
Stabilizes alloy by preventing chromium carbide formation after welding.
C
Carbon
Contributes to strength and hardness in controlled amounts.
Mn
Manganese
Improves hot working properties and contributes to toughness.
Si
Silicon
Acts as a deoxidizer and improves resistance to oxidation at high temps.
P / S
Phosphorus / Sulfur
Controlled levels to manage strength and machinability without reducing toughness.
Technical Data
Specifications for 321 Stainless Steel Sheet
ASTM A240 / ASME SA240 · UNS S32100 · EN 1.4541 · JIS SUS 321
| Specification | Details |
|---|---|
| ASTM / ASME | ASTM A240 / ASME SA240 (Plate, Sheet, and Strip) |
| UNS | UNS S32100 |
| EN | 1.4541 |
| DIN | 1.4541 |
| ISO | ISO X6CrNiTi18-10 |
| JIS | SUS 321 |
| Product Form | Sheets / Plates |
| Thickness Range | 0.5 mm to 100 mm |
| Standard Widths | 1000 mm, 1219 mm, 1250 mm, 1500 mm, 1800 mm, 2000 mm, 2500mm, 3000mm, 3500mm, etc |
| Standard Lengths | 2000 mm, 2440 mm, 2500 mm, 3000 mm, 5800 mm, 6000mm, etc |
| Custom Width Cut | Available as per customer requirement |
| Custom Length Cut | Available as per customer requirement |
| 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
Available Stock & Product Forms
Sheets
Precision 321 sheets and heavy plates in various finishes.
Coils
Slitting coils and thin foils available from 0.05 mm.
Strips
Perforated coils and precision strips for industrial frames.
Blanks
Circles, rings, and custom-cut blanks tailored to requirements.
Chromium (Cr)
17.0 – 19.0% — Stable corrosion and oxidation resistance.
Nickel (Ni)
9.0 – 12.0% — Enhances toughness and high-temp oxidation resistance.
Titanium (Ti)
5×C min — Stabilizes the alloy against carbide precipitation.
Carbon (C)
≤ 0.08% — Controlled amount for strength and corrosion balance.
Tensile Strength
≥ 515 MPa — High strength for extreme thermal environments.
Yield Strength
≥ 205 MPa — Reliable performance in high-temp service.
Elongation
40% — Superior ductility and formability in annealed state.
Hardness
≤ 95 HRB — Balanced structural durability for fabrication.
Product Range
Types of 321 Stainless Steel Sheet
As a top 321 stainless steel sheet Importer and stockist, we maintain various finishes for immediate delivery.
Hot Rolled 321 Stainless Steel Sheet
Cold Rolled 321 Stainless Steel Sheet
Annealed & Pickled Sheets
Polished and Decorative Sheets
Perforated 321 Stainless Steel Sheets
Application Sectors
Industries We Serve
Sugar Industry
Global cane and beet processing requiring thermal endurance.
Power Industry
Electricity generation and distribution systems.
Ship Building
Marine propulsion and exhaust components.
Mechanical & Plant Engineering
Industrial machinery design solutions.
Food, Beverage & Dairy
Processed food manufacturing environments.
Oil & Gas Plant
Refinery furnace units and burner assemblies.
Chemical Composition
Chemical Property of 321 Stainless Steel Sheet
Titanium stabilization prevents the formation of chromium carbides at grain boundaries even after welding or exposure to 427°C - 816°C.
| Element | Percentage (%) |
|---|---|
| Carbon (C) | ≤ 0.08 |
| Chromium (Cr) | 17.0 – 19.0 |
| Nickel (Ni) | 9.0 – 12.0 |
| Titanium (Ti) | 5×C min |
| Manganese (Mn) | ≤ 2.0 |
| Silicon (Si) | ≤ 0.75 |
Performance Data
Mechanical properties of 321 Stainless Steel Sheet
515 (min)
Tensile Strength
MPa — High strength performance for extreme environments
205 (min)
Yield Strength
MPa — Structural stability at high-temperature service
40%
Elongation
Excellent ductility for fabrication and deep drawing
≤ 95
Hardness (HRB)
Optimal hardness for machining and industrial forming
8.0 g/cm³
Density
Consistent material density for structural calculations
Cost Information
Price Lists for 321 Stainless Steel Sheet
Price Factors
Factors That Affect the Price of 321 SS Sheet
- Raw material (Nickel & Titanium) prices
- Sheet thickness and surface finish
- Import duties and logistics costs
- Order quantity and customization
- Global market demand trends
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International Standards
Equivalent Grades for 321 Stainless Steel Sheet
Global metallurgical designations for SS 321 across major standards.
| Standard / Region | Equivalent Grade |
|---|---|
| ASTM / AISI | 321 / S32100 |
| UNS | S32100 |
| DIN (Germany) | X6CrNiTi18-10 / 1.4541 |
| EN (European Standard) | 1.4541 |
| BS (British Standard) | 321S31 |
| JIS (Japan) | SUS 321 |
| AFNOR (France) | Z6CN18-10T |
| GB (China) | 0Cr18Ni10Ti |
| GOST (Russia) | 08Х18Н10Т |
| UNI (Italy) | X6CrNiTi18-10 |
| ISO | X6CrNiTi18-10 |
| KS (South Korea) | STS 321 |
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Ready Stock Availability & 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
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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 wooden crates, shrink-wrapped & moisture-protected
Use Cases
Applications and Importance of SS 321 Sheets
✈️ Aerospace
Exhaust systems, heat shields, and engine casings exposed to temperatures above 800°C.
⛽ Oil & Gas
Used in pipelines, heat exchangers, and refinery components under high thermal loads.
🌾 Fertilizer Industry
Reactors and storage vessels handling ammonia and urea at elevated temperatures.
⚡ Electric & EV
Battery enclosures, cooling plates, and thermal shielding for safe thermal management.
🧪 Chemical Processing
Pressure vessels and columns handling acids and solvents in high-temp service.
🏗️ Construction
Used for façades, expansion joints, and high-temperature structural cladding.
🚗 Automotive
Exhaust manifolds and catalytic converter housings for long-term thermal cycling.
💊 Pharmaceuticals
Process equipment and cleanroom panels requiring high-temp sterilization.
Why HRS Ferritic
Why choose HRS Ferritic for 321 Stainless Steel Sheet?
HRS Ferritic is a globally recognized stainless steel supplier specializing in premium grades and customized solutions. With a focus on quality, transparency, and customer satisfaction, we continue to serve industries worldwide with excellence.
Trusted 321 stainless steel sheet Supplier and Stockist
Sourced from valuable and certified mills
Wide inventory with ready stock availability
Complete quality control and strict documentation
Competitive pricing with consistent quality
Expertise as Importer of AISI 321 Sheets
Custom sizes and surface finishes available
Strong technical and global logistics support
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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 to common queries about 321 Stainless Steel Sheet.
Larger sheet sizes increase the total cost because they require more raw material and may involve additional handling and transportation.
Yes, thicker sheets cost more since they contain more material and require greater processing during manufacturing.
Premium finishes, such as polished or mirror finishes, increase the price due to additional processing and polishing steps.
Changes in the market prices of alloying elements like chromium, nickel, and titanium can directly influence the overall cost of the sheets.
It contains titanium stabilization that helps resist intergranular corrosion during prolonged exposure to elevated temperatures.
These sheets are widely used in aerospace, chemical processing, heat exchangers, and furnace equipment.
Yes, it offers good weldability and formability, making it suitable for various fabrication and industrial applications.
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