Nandini Steel is a trusted supplier and stockist of 310 stainless steel plate based in Mumbai, India. With over 25 years of experience, we supply ASTM A240 / ASME SA-240 Type 310 plate (UNS S31000, AISI 310) in thicknesses from 3 mm to 100 mm. The alloy contains 24.0 to 26.0% chromium and 19.0 to 22.0% nickel, with a maximum carbon content of 0.25%. SS 310 plate is an austenitic chromium-nickel alloy, also known as 25Cr-20Ni plate, built for high-temperature service.
310 Stainless Steel Plate composition provides oxidation resistance up to 2010°F (1100°C). ASTM A240 Type 310 plate has a minimum tensile strength of 515 MPa (75 ksi) and yield strength of 205 MPa (30 ksi), with elongation of 35%. Width starts from 1000 mm and goes up to 2,500 mm, and lengths up to 6,000 mm, with custom cutting per client specification.
Our material complies with ASTM A240, ASME SA-240, and AMS 5521. Common applications include furnace parts, petrochemical equipment, and power generation systems. We are ISO 9001-certified and supply all materials with mill test certificates. This page covers specifications, chemical composition, mechanical properties, equivalent grades, sizes, variants, industrial applications, pricing, and frequently asked questions.
310 Stainless Steel Plate Specifications
| Parameter | Details |
| Standard | ASTM A240 / ASME SA-240 |
| Thickness | 3 mm to 100 mm (0.120 in. to 4 in.) |
| Width | 1,000 mm, 1,250 mm, 1,500 mm, 2,000 mm, 2,500 mm |
| Length | Up to 6,000 mm; custom lengths available |
| Finish | No.1 (Hot Rolled), 2B, 2D, No.4, BA, Mirror |
| Form | Hot Rolled Plate, Cold Rolled Sheet/Plate |
| Edge | Mill Edge, Slit Edge |
Stainless Steel 310 Plate Types
SS 310 Chequered Plate
SS 310 Polished Plate
SS 310 Hot Rolled Plate
SS 310 CR Plates
Stainless Steel 310 Clad Plate
Stainless Steel 310 Rolling Plate
Matt PVC SS 310 Plate
2B SS 310 Plates
SS 310 Plate Chemical Composition
| Grade | C | Mn | Si | P | S | Cr | Ni | N |
| SS 310 | 0.25 max | 2.00 max | 1.50 max | 0.045 max | 0.030 max | 24.0 – 26.0 | 19.0 – 22.0 | 0.10 max |
310 Stainless Steel Plate Mechanical Properties
The table below shows the mechanical properties of 310 Stainless Steel Plate, including tensile strength and elongation. Stainless steel 310 plate has a density of 7.9 g/cm3 and a melting range of 2,470 to 2,555°F (1,354 to 1,402°C). The 310 stainless steel machinability rating is 42% relative to AISI B1112.
| Property | Tensile Strength (min) | Yield Strength, 0.2% offset (min) | Elongation in 2 in. | Hardness (Brinell, max) | Hardness (Rockwell B, max) |
| Imperial | 75 ksi | 30 ksi | 35% | 217 HB | 95 HRB |
| Metric | 515 MPa | 205 MPa | 35% | 217 HB | 95 HRB |
310 Stainless Steel Plate Equivalent Grades
| Country / Standard | Designation |
| UNS | UNS S31000 |
| Europe (EN / W.Nr) | 1.4845 / 1.4841 (X8CrNi25-21 / X15CrNiSi25-21) |
| Japan (JIS) | SUS 310 |
| China (GB) | 0Cr25Ni20 (old) / 06Cr25Ni20 (new) |
| Russia (GOST) | 20Kh23N18 (20Х23Н18) |
| India (IS) | IS 6911 Gr X04Cr25Ni20 |
| Trade Name | 25/20 Cr-Ni stainless steel |
310 Stainless Steel Plate Industrial Applications
Alloy 310 plate serves four key industries: furnace equipment, petrochemical processing, power generation, and cryogenic service.
Furnace and Heat Treatment Equipment
SS 310 plate is used in radiant tubes, muffles, retorts, and annealing covers above 1,000°C.
Petrochemical and Refining
Alloy 310 plates are used in lines, reactors and flare stacks in carburising and oxidising refinery atmospheres.
Power Generation
Stainless Steel 310 plate forms duct linings and boiler baffles in coal-fired and waste-to-energy plants.
Cryogenic & High-Temp Processing
310 plate serves baking oven liners and cryogenic storage vessels due to austenitic stability at extreme temperatures.
310 Stainless Steel Plate Sizes
| Parameter | Details |
| Material Grade | 310 Stainless Steel Plate |
| Thickness Range | 3 mm to 100 mm |
| Width Range | 1,000 mm to 2,500 mm |
| Length Range | Up to 6,000 mm |
| Standard Sizes | 4 ft × 8 ft, 5 ft × 10 ft |
| Custom Cutting | Available as per the requirement |
Distributor of the Following Manufacturers
We are an authorised distributor of 310 stainless steel plates from the following mills.
Aperam
Outokumpu
Nippon Steel
Stainless Steel 310 Plate Finish Types
We supply 310 stainless steel plates across Mumbai, Delhi, Chennai, Kolkata, Bengaluru, Hyderabad, Pune, and other cities. Ex-stock dispatch 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
| 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 the maximum temperature limit for a 310 Stainless Steel Plate?
310 stainless steel plate resists oxidation up to 2010°F (1100°C) in cyclic conditions and 2100°F (1149°C) in continuous service. It isn’t recommended for repeated liquid quenching.
What is the price of SS 310 Plate per kg in India?
The 310 stainless steel plate price in India ranges from Rs. 400 to Rs. 550 per kg. International pricing is approximately USD $5 to $8 per kg. The SS 310 price depends on thickness, quantity, and nickel/chromium market rates. Contact us for the current SS 310 plate price in Mumbai or anywhere in India.
What is the difference between 310 and 310S Stainless Steel Plate?
310 plate has a maximum carbon content of 0.25%, while 310S limits carbon to 0.08% max. Lower carbon in 310S reduces sensitisation risk. In most cases, the plate can meet dual 310S/310H certification.
Can a 310 Stainless Steel Plate be welded?
310 stainless steel plate can be welded using AWS E310-15 electrodes or ER310 filler wire. Pre-heat and post-weld heat treatment aren’t typically required.
What sizes are available for the 310 Stainless Steel Plate?
310 stainless steel plate is available in thicknesses from 3 mm to 100 mm, widths up to 2,500 mm, and lengths up to 6,000 mm. Custom cutting is available on request.
Does a 310 Stainless Steel Plate rust?
310 stainless steel plate resists scaling at high temperatures due to its 24.0 to 26.0% chromium and 19.0 to 22.0% nickel. It isn’t designed for wet chloride-rich environments.
What is the difference between 310 and 316 Stainless Steel Plate?
310 plate (25Cr-20Ni) is designed for high-temperature oxidation resistance up to 2010°F. 316 plate (16Cr-10Ni-2Mo) is built for wet corrosion resistance against chlorides. Choose 310 for furnace service; choose 316 for chemical processing.
What is the chemical composition of SS 310 Plate?
Per ASTM A240 / ASME SA-240: Chromium 24.0 to 26.0%, Nickel 19.0 to 22.0%, Carbon 0.25% max, Silicon 1.50% max, Manganese 2.00% max.
