Nandini Steel is a trusted 904L stainless steel plate supplier based in Mumbai, India, offering premium quality ASTM A240 / ASME SA-240 plates for demanding industrial applications. With 25 years of industry experience, we deliver high-performance stainless steel 904L plates manufactured to meet global quality standards. Alloy 904L (UNS N08904 / W.Nr 1.4539) contains 19.0–23.0% chromium, 23.0–28.0% nickel, 4.0–5.0% molybdenum, and 1.0–2.0% copper, providing exceptional resistance to sulphuric acid, phosphoric acid, and chloride-rich environments. Our plates are widely used in chemical processing, marine, petrochemical, and power generation industries where superior corrosion resistance and durability are essential. Choose Nandini Steel for reliable material quality, timely delivery, and expert support for every project.
SS 904L plate has a minimum tensile strength of 490 MPa (71 ksi), a yield strength of 215 MPa (31 ksi), and 35% elongation. The elevated nickel and molybdenum concentrations safeguard against pitting, crevice corrosion, and stress corrosion cracking in hostile chemical conditions. We offer stainless steel 904L plates in thicknesses from 3 mm to 100 mm, widths up to 2,500 mm, and lengths up to 6,000 mm. Custom size processing is available upon request.
All material ships with EN 10204 3.1 mill test certificates. Nandini Steel is an ISO 9001 certified company and one of the trusted 904L stainless steel plate manufacturers, supplying premium quality SS 904L plate products to customers across India and international markets.
Why Choose 904L Stainless Steel Plate
Severe chloride environments degrade standard alloys quickly. Adding up to 25% nickel and 4.5% molybdenum means a 904L stainless steel plate handles extreme acidic attacks without developing pitting or crevice corrosion. Copper additions specifically prevent stress corrosion cracking inside active chemical processing lines and marine desalination plants. The material outlasts lower grades effortlessly. Fabrication shops appreciate how easily stainless steel 904L plates weld during the construction of heavy petrochemical storage tanks, power generation scrubbers, and pharmaceutical reactors. As a verified 904L stainless steel plate supplier and manufacturer, we stock the exact gauge your project demands. Each of our plate undergoes thorough proper testing for dimensional accuracy and structural adherence. Our quality stock improves performance and extends the life of equipment in hazardous areas. Contact our team for the affordable rates, thorough material test certificates and fast lead times.
904L Stainless Steel Plate Specifications
The table below lists the specifications of 904L Stainless Steel Plate, including standards, sizes, finishes, and forms.
| Parameter | Details | |||||
| Standard | ASTM A240 / ASME SA-240 | |||||
| Thickness | 3 mm to 100 mm (0.118″ to 3.94″) | |||||
| Width | 1,000 mm to 2,500 mm (custom widths available) | |||||
| Length | 2,000 mm to 6,000 mm (custom lengths available) | |||||
| Finish | No.1, 2B, 2D, BA, No.4, No.8 Mirror, Hairline | |||||
| Form | Hot Rolled, Cold Rolled | |||||
| Edge | Mill Edge, Slit Edge | |||||
| Condition | Solution Annealed | |||||
Other Types Stainless Steel 904L Plates
SS 904L Chequered Plate
SS 904L Polished Plate
SS 904L Hot Rolled Plate
SS 904L CR Plates
Stainless Steel 904L Clad Plate
Stainless Steel 904L Rolling Plate
Matt PVC SS 904L Plate
2B SS 904L Plates
904L Stainless Steel Plate Chemical Composition
| Element | Carbon (C) | Manganese (Mn) | Phosphorus (P) | Sulphur (S) | Silicon (Si) | Chromium (Cr) | Nickel (Ni) | Molybdenum (Mo) | Copper (Cu) | Nitrogen (N) | Iron (Fe) |
| Composition (%) | 0.020 max | 2.00 max | 0.045 max | 0.035 max | 1.00 max | 19.0 to 23.0 | 23.0 to 28.0 | 4.0 to 5.0 | 1.0 to 2.0 | 0.10 max | Balance |
904L Stainless Steel Plate Mechanical Properties
| Property | Tensile Strength (min) | Yield Strength (min, 0.2% offset) | Elongation in 50 mm / 2 in. (min) | Brinell Hardness (max) | Rockwell B Hardness (max) |
| Metric | 490 MPa | 215 MPa | 35% | 192 HBW | 90 HRB |
| Imperial | 71 ksi | 31 ksi | 35% | 192 HBW | 90 HRB |
904L Stainless Steel Plate Equivalent Grades
The 904L plate is recognised under several international designations. The table below lists equivalent grades across major standards.
| Country / Standard | Designation |
| USA (ASTM) | ASTM A240 / SA-240 Type N08904 |
| USA (UNS) | UNS N08904 |
| Europe (EN / W.Nr) | 1.4539 / X1NiCrMoCu25-20-5 |
| Japan (JIS) | SUS 890L |
| UK (BS) | 904S13 |
| France (AFNOR) | Z2NCDU25-20-04 |
| Sweden (SS) | SS 2562 |
| China (GB) | 00Cr20Ni25Mo4.5Cu |
| Trade Names | Alloy 904L, Uranus B6, Cronifer 1925 hMo, NAS 255 |
Stainless Steel 904l Plate Price
| Size (mm) | Price in USD (per kg) |
| 0.5 | US$ 2.21 |
| 1 | US$ 2.15 |
| 1.5 | US$ 3.01 |
| 2 | US$ 4.21 |
| 3 | US$ 3.09 |
| 4 | US$ 4.01 |
| 5 | US$ 4.00 |
| 6 | US$ 4.20 |
| 7 | US$ 5.22 |
| 8 | US$ 5.89 |
HSN Code SS 904L Sheet Metal
| Properties | Values |
| HSN | 72193390 |
904L Stainless Steel Plate Industrial Applications
Chemical Processing
Alloy 904L plate serves reactor vessels, heat exchangers, and storage tanks handling sulphuric and phosphoric acid.
Oil and Gas
SS 904L plate is selected for offshore platform components, gas scrubbers, and process piping in sour service conditions.
Pharmaceutical Industry
This grade forms API reactors, centrifuges, and high-purity process vessels where purity, corrosion resistance, and surface finish are critical.
Marine and Seawater Systems
904L plate performs in seawater cooling circuits, desalination condensers, and heat exchangers exposed to chloride attack.
Pulp and Paper
Stainless steel 904L plate handles bleach plant washers, ClO₂ towers, and chlorine dioxide reactors in chloride-bearing pulp processing environments.
904L Stainless Steel Plate Sizes
We stock Stainless Steel 904L Plate in a range of standard and custom sizes. The table below covers hot-rolled plate dimensions.
| Thickness (mm) | Thickness (inch) | Standard Width (mm) | Standard Length (mm) |
| 4.8 | 3/16″ | 1,000 / 1,219 / 1,500 / 2,000 | 2,000 / 2,440 / 3,000 / 6,000 |
| 6.3 | 1/4″ | 1,000 / 1,219 / 1,500 / 2,000 | 2,000 / 2,440 / 3,000 / 6,000 |
| 12.7 | 1/2″ | 1,000 / 1,219 / 1,500 / 2,000 | 2,000 / 2,440 / 3,000 / 6,000 |
| 25.4 | 1″ | 1,219 / 1,500 / 2,000 | 2,000 / 3,000 / 6,000 |
| 50.8 | 2″ | 1,219 / 1,500 | 2,000 / 3,000 |
Distributor of the Following Manufacturers
Aperam
Outokumpu
Nippon Steel
JFE Steel Corporation
Stainless Steel 904L Plate Finish Types
Nandini Steel supplies 904L Stainless Steel Plate across all major Indian cities, including Mumbai, Delhi, Chennai, Kolkata, Bengaluru, Hyderabad, Pune, Ahmedabad, and across other major Indian cities. Standard sizes ship ex-stock within 3 to 5 working days.
| Mumbai (Maharashtra) | Delhi | Bengaluru (Karnataka) | Chennai (Tamil Nadu) |
| Kolkata (West Bengal) | Hyderabad (Telangana) | Ahmedabad (Gujarat) | Pune (Maharashtra) |
| Jaipur (Rajasthan) | Surat (Gujarat) | Chandigarh | Lucknow (Uttar Pradesh) |
| Indore (Madhya Pradesh) | Coimbatore (Tamil Nadu) | Kochi (Kerala) | Visakhapatnam (Andhra Pradesh) |
| Nagpur (Maharashtra) | Patna (Bihar) | Bhopal (Madhya Pradesh) | Vadodara (Gujarat) |
| Mysuru (Karnataka) | Thane (Maharashtra) | Rajkot (Gujarat) | Vijayawada (Andhra Pradesh) |
| Agra (Uttar Pradesh) | Nashik (Maharashtra) | Guwahati (Assam) | Kanpur (Uttar Pradesh) |
| Faridabad (Haryana) | Gurugram (Haryana) | Noida (Uttar Pradesh) | Shimla (Himachal Pradesh) |
| Raipur (Chhattisgarh) | Udaipur (Rajasthan) | Bhubaneswar (Odisha) | Dehradun (Uttarakhand) |
| Ranchi (Jharkhand) | Jamshedpur (Jharkhand) | Chandrapur (Maharashtra) | Dhanbad (Jharkhand) |
| Aligarh (Uttar Pradesh) | Aurangabad (Maharashtra) | Tiruchirappalli (Tamil Nadu) | Srinagar (Jammu & Kashmir) |
| Ludhiana (Punjab) | Warangal (Telangana) | Bikaner (Rajasthan) | Panaji (Goa) |
| Guntur |
Global Supply
We export stainless steel 904L plate to countries across the Middle East, Southeast Asia, Africa, Europe, and North America. All shipments include mill test certificates, inspection reports, and full documentation.
| Region | Countries | |||||
| Middle East | Oman, Kuwait, Turkey, Yemen, Syria, Jordan, Cyprus, Saudi Arabia, Iran, Iraq, UAE, Qatar, Bahrain | |||||
| Africa | South Africa, Libya, Egypt, Sudan, Gabon, Nigeria, Algeria, Angola, Equatorial Guinea, The Republic Of Congo | |||||
| North America | Costa Rica, Puerto Rico, Trinidad And Tobago, Jamaica, Bahamas, USA, Canada, Mexico, Panama | |||||
| Europe | Netherlands, Belgium, Greece, Portugal, Hungary, Denmark, Russia, Norway, Germany, France, Italy, UK, Spain, Ukraine, Croatia, Slovenia, Malta, Albania, Austria, Switzerland, Slovakia, Finland, Ireland, Czech Republic | |||||
| Asia | India, Japan, Sri Lanka, Maldives, Bangladesh, Myanmar, Taiwan, Cambodia, Singapore, Malaysia, Indonesia, Thailand, Vietnam, South Korea | |||||
| South America | Venezuela, Colombia, Ecuador, Guyana, Paraguay, Uruguay, Argentina, Bolivia, Brazil, Chile | |||||
Frequently Asked Questions
What is a 904L stainless steel plate and what are its main advantages?
The stainless steel plate 904L is a hyper austenitic profile, highly alloyed with the addition of copper and nickel. It is designed to be superior to ordinary grades and has the added advantage of superb structural toughness and high resistance to reducing acids, including hot sulfuric acid.
What is the difference between 904L and 316L SS plate?
The difference lies in alloy chemistry. While 316L handles standard use, stainless steel 904L plates contain significantly more nickel, molybdenum, and copper. This specialized shielding allows an SS 904L plate to easily survive hot chloride environments.
What thicknesses and sizes are available in 904L stainless steel plates?
We are trusted 904l stainless steel plate manufacturers and carry typical thicknesses from 2mm to over 50mm. We can provide custom widths, exact cut lengths, and unique finishes all in accordance with your technical designs at our location.
Is 904L stainless steel plate suitable for marine and seawater applications?
Yes. 904L is a high molybdenum, low carbon grade that offers good resistance to severe chloride pitting and crevice corrosion. This makes it suitable for usage in marine areas, off-shore rigs and brackish water systems.
Can 904L stainless steel plate be welded and fabricated easily?
Yes, it is easy to make and easy to weld by conventional fusion techniques. It has a low carbon grade so intergranular precipitation during welding is naturally reduced. Your shop team can bypass the time-consuming post weld heat treatment.
What are the common industrial applications of 904L SS plate?
These plates handle heavy duty in aggressive environments. They are widely used for constructing chemical storage tanks, industrial heat exchangers, flue gas scrubbers, oil refinery components, and bleaching systems in pulp mills.
What ASTM specifications and certifications are available for 904L SS plate?
We supply premium plates certified to ASTM A240 and ASTM B625. As a premier 904l stainless steel plate supplier, every order we dispatch from Mumbai includes complete EN 10204 3.1 mill test certificates.
What is the current price of 904L stainless steel plate per kg?
Because 904L relies on premium nickel and molybdenum, prices fluctuate based on global metal markets. Please contact the Nandini Steel team in Mumbai for an immediate, highly competitive bulk quotation for your project.
