DIPTI METAL INDUSTRIES
Comprehensive Stainless Steel Equivalent Grade Chart: AISI, JIS, DIN, EN, GB Cross-Reference
Dipti Metal Industries presents this essential Stainless Steel Equivalent Grade Chart, a critical technical resource for navigating the complexities of global stainless steel standards. This chart provides a comprehensive cross-reference for major international designations, including USA (AISI/ASME), Japan (JIS/SUS), Germany (DIN), Europe (EN), UK (BS), France (AFNOR), Sweden (SS), and China (GB). Use this tool to accurately identify material equivalents for design, fabrication, and seamless global procurement of Austenitic, Ferritic, Martensitic, Duplex, and Precipitation Hardening stainless steels. Click on the highlighted grade names for specific product pages.
The Necessity of Stainless Steel Grade Cross-Referencing
In global engineering and procurement, a single material can be specified differently by up to eight or more different codes depending on the country of origin or end-use. Choosing the wrong stainless steel grade, even a subtle one like 304 vs. 1.4301, can lead to compliance issues, structural failure, or accelerated corrosion.
This chart serves as your single source of truth, linking the familiar US AISI grades with their equivalents in European EN codes, Japanese JIS numbers, and Chinese GB designations. We have meticulously compiled this data to ensure you specify and procure the correct material properties every time.
Full Stainless Steel Equivalent Grade Chart
This table includes all major families: Austenitic (300 series), Ferritic (400 series), Martensitic (400 series), Duplex, and Precipitation Hardening (PH). Grades with dedicated product pages are linked.
| Category | USA | Japan | Germany | UK | France | China | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Grade (AISI/ASME) | UNS | Grade (JIS) | EN No. (DIN) | EN Name | DIN No. | BS Grade | AFNOR | SS (Sweden) | GB Grade | |||
| AUSTENITIC GRADES (300 SERIES) | ||||||||||||
| Austenitic | 304 | S30400 | SUS 304 | 1.4301 | X5CrNi18-10 | - | 304S31 | Z6CN18-09 | 2337 | 0Cr18Ni9 | ||
| Austenitic | 304L | S30403 | SUS 304L | 1.4306 | X2CrNi19-11 | - | 304S11 | - | 1.4306 | 00Cr19Ni10 | ||
| Austenitic | 304H | S30409 | SUS 304H | 1.4301H | X5CrNi18-10 | - | 304S41 | - | 1.4301H | 0Cr18Ni9H | ||
| Austenitic | 316 | S31600 | SUS 316 | 1.4401 | X5CrNiMo17-12-2 | - | 316S31 | Z6CNMo17-12-2 | 1.4401 | 0Cr17Ni12Mo2 | ||
| Austenitic | 316L | S31603 | SUS 316L | 1.4404 | X2CrNiMo17-12-2 | - | 316S11 | - | 1.4404 | 00Cr17Ni12Mo2 | ||
| Austenitic | 303 | S30300 | SUS 303 | 1.4305 | X8CrNiS18-9 | - | 303S31 | - | 1.4305 | 0Cr17Ni12 | ||
| Austenitic | 309 | S30900 | SUS 309 | 1.4828 | X15CrNi25-20 | - | 309S31 | - | 1.4828 | - | ||
| Austenitic | 310S | S31008 | SUS 310S | 1.4841 | X15CrNi25-20 | - | 310S31 | - | 1.4841 | - | ||
| Austenitic | 317L | S31703 | SUS 317L | 1.4438 | X2CrNiMo17-12-2 | - | 317S11 | - | 1.4438 | - | ||
| Austenitic | 321 | S32100 | SUS 321 | 1.4541 | X6CrNiTi18-10 | - | 321S31 | Z6CnTi18-10 | 1.4541 | 1Cr18Ni11Ti | ||
| Austenitic | 347 | S34700 | SUS 347 | 1.455 | X6CrNiNb18-10 | - | 347S31 | Z6CnNb18-10 | 1.455 | 1Cr18Ni11Nb | ||
| Super-Austenitic | 904L | N08904 | SUS 904L | 1.4539 | X1NiCrMoCu25-20-5 | - | 904S13 | Z6CND25-20-5 | 1.4539 | - | ||
| FERRITIC GRADES (400 SERIES) | ||||||||||||
| Ferritic | 430 | S43000 | SUS 430 | 1.4016 | X12Cr17 | - | 430S17 | Z10CD17 | 1.4016 | 1Cr17 | ||
| Ferritic | 409 | S40900 | SUS 409 | 1.4512 | X8Cr17 | - | 409S17 | Z10CD17 | 1.4512 | 1Cr17 | ||
| Ferritic | 444 | S44400 | SUS 444 | 1.4521 | X2CrTi12 | - | 444S23 | - | 1.4521 | 0Cr18Ti12 | ||
| Martensitic | 410 | S41000 | SUS 410 | 1.4006 | X20Cr13 | - | 410S21 | Z20CD13 | 1.4006 | 1Cr13 | ||
| Martensitic | 420 | S42000 | SUS 420 | 1.4021 | X20Cr13 | - | 420S29 | Z20CD13 | 1.4021 | 1Cr13 | ||
| Martensitic | 440C | S44004 | SUS 440C | 1.4125 | X65Cr13 | - | 440S45 | - | 1.4125 | 1Cr18Mo | ||
| DUPLEX & PRECIPITATION HARDENING (PH) GRADES | ||||||||||||
| Duplex | 2205 | S31803/S32205 | SUS 2205 | 1.4462 | X2CrNiMoN22-5-3 | - | 2205S32 | Z3CN22-5-3 | 1.4462 | - | ||
| Duplex | 2507 | S32750 | SUS 2507 | 1.441 | X2CrNiMoCu25-7-4 | - | 2507S32 | Z6CN25-7-4 | 1.441 | - | ||
| PH | 17-4 PH | S17400 | SUS 17-4 PH | 1.4542 | X5CrNiCuNb16-4 | - | 17-4 PH | Z5CNCuNb16-4 | 1.4542 | - | ||
| Duplex | LDX 2101 | S32101 | - | 1.4162 | X2CrNiN22-5-2 | - | LDX | - | 1.4162 | - | ||
Disclaimer: This chart is for informational purposes only. Consult mill certification (EN 10204 3.1) and project specifications to verify exact chemical compositions and mechanical properties, as slight variations may exist between standards.
Detailed Focus: Austenitic Stainless Steels (300 Series)
The 300 series are the most widely used stainless steels, known for excellent corrosion resistance, non-magnetic properties, and superior formability. Grades like 304 and 316 are the backbone of most processing and piping industries globally. Note the "L" variants (304L, 316L) correspond to lower carbon versions (max 0.03% C) offering improved weldability and resistance to sensitization.
Detailed Focus: Ferritic and Martensitic Grades (400 Series)
The 400 series contains ferritic (e.g., 430, 409) and martensitic (e.g., 410, 420) grades. Ferritic grades are magnetic and offer good resistance to stress corrosion cracking, typically used in automotive exhaust systems and appliances. Martensitic grades are magnetic and hardenable via heat treatment, making them ideal for high-strength applications like cutlery, turbine blades, and tools.
Detailed Focus: Duplex and Precipitation Hardening (PH) Grades
Duplex Steels (e.g., 2205, 2507) feature a microstructure of roughly 50% austenite and 50% ferrite. This dual phase provides superior strength (nearly double that of 300 series) and excellent resistance to chloride stress corrosion cracking, making them ideal for harsh marine and chemical environments.
Precipitation Hardening (PH) Steels (e.g., 17-4 PH) offer the highest combination of strength and hardness through a special low-temperature heat treatment process. They are preferred for aerospace, nuclear, and high-performance industrial components.
Procurement Enhancements & Seamless Experience
Using our Equivalent Grade Chart is the first step towards streamlined procurement. Dipti Metal Industries ensures the end-to-end experience is just as efficient, offering technical and logistical solutions built around your global project needs:
- Traceability Beyond Standards: We provide EN 10204 3.1 or 3.2 MTCs (Mill Test Certificates) for all materials, guaranteeing complete transparency on chemical composition and mechanical properties from melt to final delivery.
- Expert Material Substitution: Our technical team can validate and recommend appropriate domestic or international substitutes (e.g., DIN 1.4404 for AISI 316L) to expedite urgent deliveries or meet budgetary requirements without compromising performance criteria.
- Full-Scope Material Kits: We offer complete piping and component kits for specific projects (e.g., flange, fittings, pipes, and fasteners for a 304L spool), sourced entirely within the confirmed equivalent grade specification.
- Global Logistics Mastery: Leveraging years of experience as a worldwide exporter, we handle all specialized export documentation, customs clearance, and seaworthy packing to ensure your stainless steel arrives safely and on time, anywhere in the world.
Dipti Metal Industries Full Stainless Steel Product Range
As a global supplier, we provide all common stainless steel products in the equivalent grades listed above. Explore our full range of certified piping, fittings, flanges, and components. Click on any product type for more details.
- ASTM A312 TP316L Pipes
- ASTM A312/A213 TP304 Pipes
- ASTM A312/A213 TP316 Pipes
- ASTM A312/A213 TP321 Pipes
- ASTM A312/A213 TP347 Pipes
- ASTM A312 TP310S Pipes
- ASTM A312 TP304LN Pipes
- Welded Mirror Polished Tubes
- Alloy Steel A213 T91 Tubes
- Carbon Steel A106 Gr. B Pipes
- General Welded Pipes & Tubes (ERW/EFW/LSAW/SSAW)
- Butt-Weld Elbows (45°/90°/180°)
- Butt-Weld Tees
- Butt-Weld Reducers (Concentric/Eccentric)
- Socket Weld Fittings (Elbows, Tees, etc.)
- Threaded Fittings (Elbows, Tees, etc.)
- Swage/Threaded Nipples
- Branch Connection Fittings (Olets, Sweepolets)
- General Stainless Steel Fittings (A403)
- Nickel Alloy Butt-Weld Fittings (B366)
Stainless Steel Equivalent Grade Chart Export Countries & Cities We Supply From India To
Dipti Metal Industries is a proud Worldwide Exporter, Global Supplier, Dealer, and Stockist of Stainless Steel products, with an extensive network. We ensure timely and compliant delivery to major industrial hubs across the globe.
Explore Our Global Reach
- Austria: Vienna, Salzburg
- Belgium: Antwerp, Brussels, Ghent
- Bulgaria: Sofia, Plovdiv
- Croatia: Zagreb, Split
- Czech Republic: Prague, Brno
- Denmark: Copenhagen, Aarhus
- Estonia: Tallinn, Tartu
- Finland: Helsinki, Tampere
- France: Paris, Marseille, Lyon
- Germany: Frankfurt, Hamburg, Munich, Düsseldorf
- Greece: Athens, Thessaloniki
- Hungary: Budapest, Debrecen
- Ireland: Dublin, Cork
- Italy: Milan, Rome, Genoa
- Latvia: Riga, Daugavpils
- Lithuania: Vilnius, Kaunas
- Luxembourg: Luxembourg City
- Netherlands: Rotterdam, Amsterdam, The Hague
- Norway: Oslo, Bergen
- Poland: Warsaw, Krakow
- Portugal: Lisbon, Porto
- Romania: Bucharest, Cluj-Napoca
- Russia: Moscow, Saint Petersburg, Kazan
- Serbia: Belgrade, Novi Sad
- Slovakia: Bratislava, Košice
- Slovenia: Ljubljana, Maribor
- Spain: Madrid, Barcelona, Valencia
- Sweden: Stockholm, Gothenburg
- Switzerland: Zurich, Geneva, Basel
- Ukraine: Kyiv, Kharkiv, Odesa
- United Kingdom: London, Manchester, Aberdeen, Glasgow
- Afghanistan: Kabul, Kandahar
- Bahrain: Manama, Sitra
- Bangladesh: Dhaka, Chittagong
- Brunei: Bandar Seri Begawan
- China: Shanghai, Guangzhou, Tianjin, Shenzhen
- Hong Kong: Hong Kong City
- India: Mumbai, Delhi, Chennai, Kolkata, Bangalore, Hyderabad (Local Markets)
- Indonesia: Jakarta, Surabaya, Balikpapan
- Iran: Tehran, Mashhad
- Iraq: Baghdad, Basra
- Japan: Tokyo, Osaka, Nagoya
- Jordan: Amman, Irbid
- Kazakhstan: Nur-Sultan, Almaty
- Kuwait: Kuwait City, Ahmadi
- Laos: Vientiane, Luang Prabang
- Lebanon: Beirut, Tripoli
- Malaysia: Kuala Lumpur, Johor Bahru, Port Klang
- Myanmar: Yangon, Mandalay
- Nepal: Kathmandu, Biratnagar
- Oman: Muscat, Sohar, Salalah
- Philippines: Manila, Cebu
- Qatar: Doha, Ras Laffan
- Saudi Arabia: Riyadh, Jeddah, Dammam, Al Khobar, Jubail
- Singapore: Singapore City
- South Korea: Seoul, Busan, Ulsan
- Sri Lanka: Colombo, Kandy
- Syria: Damascus, Aleppo
- Taiwan: Taipei, Kaohsiung
- Thailand: Bangkok, Rayong, Laem Chabang
- UAE: Dubai, Abu Dhabi, Sharjah, Ajman, Ras Al Khaimah
- Uzbekistan: Tashkent, Samarkand
- Vietnam: Ho Chi Minh City, Hanoi, Da Nang
- Yemen: Sana'a, Aden
- Canada: Calgary, Edmonton, Vancouver, Toronto, Montreal
- Mexico: Mexico City, Monterrey, Guadalajara
- Panama: Panama City, Colón
- USA: Houston, Los Angeles, New York, Chicago, New Orleans
- Argentina: Buenos Aires, Cordoba
- Bolivia: La Paz, Santa Cruz
- Brazil: São Paulo, Rio de Janeiro, Salvador
- Chile: Santiago, Valparaíso
- Colombia: Bogota, Medellin
- Ecuador: Quito, Guayaquil
- Peru: Lima, Arequipa
- Uruguay: Montevideo
- Venezuela: Caracas, Maracaibo
- Algeria: Algiers, Oran
- Angola: Luanda, Huambo
- Egypt: Cairo, Alexandria, Port Said
- Ghana: Accra, Kumasi
- Kenya: Nairobi, Mombasa
- Libya: Tripoli, Benghazi
- Morocco: Casablanca, Rabat
- Mozambique: Maputo, Beira
- Nigeria: Lagos, Port Harcourt, Abuja
- Rwanda: Kigali, Rubavu
- South Africa: Johannesburg, Durban, Cape Town, Sasolburg
- Tanzania: Dar es Salaam, Mwanza
- Tunisia: Tunis, Sfax
- Uganda: Kampala, Gulu
- Australia: Sydney, Melbourne, Perth, Brisbane
- Fiji: Suva, Nadi
- New Zealand: Auckland, Wellington, Christchurch
- Papua New Guinea: Port Moresby, Lae
Guide to International Standards and Designations
Understanding the code structure can significantly speed up material identification. Below are the acronyms and numbering systems used across the world's major metal standards:
Major Applications by Stainless Steel Family
The selection of the stainless steel grade directly depends on the required strength, corrosion resistance, and operating temperature of the application.
- Austenitic (304/316): Food & Beverage Processing, Chemical Storage, Architectural Paneling, Pharmaceutical Equipment, Pressure Vessels, Piping.
- Ferritic (430): Automotive Trim, Washing Machine Drums, Kitchen Utensils, Heat Exchangers, Furnace Components.
- Martensitic (410/420/440): Cutlery and Knives, Surgical Instruments, Fasteners, Pump Shafts, Turbine Blades, Gears.
- Duplex (2205/2507): Offshore Oil & Gas Platforms, Desalination Plants, Chemical Tankers, High-Pressure Piping, Subsea Equipment.
- Precipitation Hardening (17-4 PH): Aerospace Components, Nuclear Reactor Parts, Valve Stems, Shafts requiring high strength at elevated temperatures.
Why Procure Your Stainless Steel from Dipti Metal Industries?
- Master of Global Standards: We stock, supply, and export Stainless Steel products in all major international grades listed in this chart, eliminating procurement guesswork.
- Assured Quality and Traceability: Every shipment is supplied with full material certification (MTC) in compliance with EN 10204 3.1, ensuring full chemical, mechanical, and traceability compliance.
- Comprehensive Product Range: From Flanges and Pipe Fittings to Pipes, Tubes, Plates, Sheets, and Fasteners, we provide complete supply for projects utilizing any stainless steel grade.
- Expert Technical Support: Our team assists you with precise grade equivalents, material selection, and TPI (Third Party Inspection) documentation for seamless project execution worldwide.
- Reliable Global Export: As a dedicated worldwide exporter from Mumbai, India, we ensure fast, safe, and certified delivery to over 60 countries across all continents.
Request a Custom Quote for Your Specific Stainless Steel Grade
Have you identified the exact grade you need? Contact Dipti Metal Industries, your trusted global stainless steel supplier and stockist. Our extensive inventory covers a full range of products in the grades listed above. We guarantee certified quality, competitive pricing, and fast global delivery.
Stainless Steel Equivalent Grades — Frequently Asked Questions
AISI 304 (UNS S30400) is considered the direct equivalent of the European EN 1.4301 (X5CrNi18-10) grade. Both are standard "18/8" austenitic stainless steels (approx 18% Chromium, 8% Nickel). While their compositions are nearly identical, the specifications (ASTM vs. EN/DIN) they must conform to may differ slightly in tolerances for elements like Carbon or Sulfur. For critical applications, ensure the MTC (Mill Test Certificate) confirms compliance with the required specification (e.g., ASTM A240/A312 or EN 10088).
Duplex stainless steels are popular because they offer a combination of benefits that standard austenitic steels cannot match. Specifically, they provide approximately twice the yield strength and significantly improved resistance to chloride stress corrosion cracking. This makes them highly cost-effective and structurally superior for applications in marine, oil & gas, and highly corrosive chemical processing environments.
The "L" stands for Low Carbon. These grades (e.g., 304L and 316L) have a maximum carbon content of 0.03% compared to 0.08% for the standard grades (304, 316). The low carbon content is primarily beneficial for welding thick sections, as it minimizes the risk of carbide precipitation (sensitization) in the heat-affected zone, which can lead to intergranular corrosion.
No. Only the Austenitic grades (300 series, like 304 and 316) are typically non-magnetic in their annealed state. The Ferritic (e.g., 430), Martensitic (e.g., 410), and Duplex (e.g., 2205) stainless steels are magnetic. However, standard austenitic grades can become slightly magnetic when heavily cold-worked (e.g., in a drawn wire or a tight bend).
Contact Dipti Metal Industries, Your Global Stainless Steel Supplier in Mumbai, India
Global export expertise: Seaworthy export packing • Line-wise bagging & tagging • Full documentation & TPI. We are a worldwide exporter of quality Stainless Steel products from Mumbai, India.