Nandini Steel is a trusted SA 516 Gr. 70 plate stockist and supplier in Mumbai, India. We supply ASME SA-516 Grade 70 / ASTM A516 carbon steel pressure vessel plates (UNS K02700) in thicknesses from 6 mm to 150 mm with full Mill Test Certification. Also known as boiler quality (BQ) plates, our SA 516 Gr 70 plates are used in welded pressure vessels, boilers, and heat exchangers for moderate to lower temperature service.
The chemical composition of this grade includes carbon up to 0.31% (varies with thickness per ASTM A516-22), 0.85 to 1.20% manganese, and 0.15 to 0.40% silicon, providing dependable weldability and toughness. Mechanical performance includes a minimum tensile strength of 485 MPa (70 ksi) and a minimum yield strength of 260 MPa (38 ksi). The balanced strength and weldability make Grade 70 the most widely used boiler quality plate for pressure vessel manufacturing.
We stock SA-516 Gr. 70 plate in widths from 1,000 mm to 3,500 mm and lengths up to 12,000 mm; custom-cut sizes are available on request. All plates conform to ASME SA516 / ASTM A516-22. Our facility holds ISO 9001 certification, and every shipment ships with an EN 10204 3.1 Mill Test Certificate, with 3.2 third-party inspection available on request.
ASME SA516 Gr 70 Plate Specifications
The key specifications for ASME SA516 Gr 70 plate are listed below.
| Property | Detail |
| Standard | ASME SA-516 / ASTM A516-22 |
| Form | Plate (Boiler Quality / Pressure Vessel Quality) |
| Thickness Range | 6 mm to 150 mm |
| Width | 1,000 mm to 3,500 mm |
| Length | Up to 12,000 mm |
| Heat Treatment | As-rolled, Normalised, Quenched & Tempered |
| Surface Condition | Mill Scale (standard); Shot-Blasted, Pickled, or Primer-Coated on request |
| Certification | EN 10204 3.1 (standard) / 3.2 (on request) Mill Test Certificate |
ASME SA516 Gr. 70 Plate Chemical Composition
Chemical composition per ASTM A516/A516M-22.
| Element | C (Max) | Mn (Heat) | Mn (Product) | P | S | Si |
| % (max/range) | 0.27–0.31* | 0.85 to 1.20 | 0.79 to 1.30 | 0.025 max | 0.025 max | 0.15 to 0.40 |
ASME SA516 Gr. 70 Plate Mechanical Properties
The mechanical properties of SA 516 Gr 70 plate, including tensile strength, elongation, and hardness values, are listed below.
| Unit | Tensile Strength | Yield Strength (min) | Elongation (50 mm gauge, min) | Elongation (200 mm gauge, min) |
| Metric | 485 to 620 MPa | 260 MPa | 21% | 17% |
| Imperial | 70 to 90 ksi | 38 ksi | 21% | 17% |
ASME SA516 Gr 70 Equivalent Grades
International equivalent designations are listed below
| Country / Standard | Designation |
| USA (UNS) | K02700 |
| Europe (EN 10028-2) | P355GH (1.0473) |
| UK (BS, superseded by EN 10028-2) | BS 1501-224-490B |
| Germany (DIN, withdrawn) | DIN 17155 19Mn6 |
| Japan (JIS G3118) | SGV480 |
| China (GB 713) | Q345R (formerly 16MnR) |
| India (IS 2002) | Grade 2B (closest equivalent) |
ASME SA516 Gr. 70 Plate Industrial Applications
ASTM A516 Grade 70 plates provide the structural integrity required for pressure-containing equipment. We supply these plates to the following sectors:
Oil & Gas Processing
Used in separator vessels, crude oil storage tanks, and gas processing columns where weldability and pressure containment are required.
Power Generation
Essential for boiler drum shells, steam headers, and economiser coils designed to withstand thermal cycling in coal-fired, gas-fired, and combined-cycle power plants.
Chemical & Petrochemical Processing
Applied in distillation columns, reactor vessels, and ethylene crackers where moderate-temperature pressure containment is required.
ASME SA516 Gr. 70 Plate Sizes
Standard plate sizes available from stock are listed below.
| Thickness (mm) | Width (mm) | Length (mm) |
| 6 | 1,000 to 2,500 | 3,000 to 6,000 |
| 8 to 12 | 1,500 to 3,000 | 4,000 to 8,000 |
| 16 to 25 | 1,500 to 3,500 | 5,000 to 10,000 |
| 30 to 50 | 2,000 to 3,500 | 6,000 to 12,000 |
| 60 to 100 | 2,000 to 3,500 | 6,000 to 12,000 |
| 110 to 150 | 2,000 to 3,500 | 6,000 to 10,000 |
Distributor of the Following Manufacturers
Our SA-516 Gr 70 plate inventory is sourced from world-class steel mills approved for boiler and pressure vessel applications.
TATA Steel
ArcelorMittal Industeel
Nandini Steel supplies A516 Gr 70 carbon steel boiler plate across Mumbai, Delhi, Chennai, Kolkata, Bengaluru, Hyderabad, Pune, Ahmedabad and other cities. Standard sizes ship 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 price of ASME SA516 GR 70 Plate?
In India, the cost of SA 516 Gr 70 Plate varies from ₹55 to ₹100 per kg. Export prices range from $0.89 to $1.57 per kg (from India). Final pricing depends on thickness, heat treatment condition, order quantity, and current market conditions. Contact us for a detailed quotation.
What is ASME SA516 Grade 70 steel equivalent to?
A516 Grade 70 steel (UNS K02700) is equivalent to EN 10028-2 P355GH (1.0473), JIS G3118 SGV480, GB 713 Q345R, IS 2002 Grade 2B, and BS 1501-224-490B (superseded by EN 10028-2).
What is the thickness availability of ASME SA516 Gr 70 Plate?
We supply SA 516 Grade 70 Plates in standard thicknesses from 6 mm to 150 mm per ASTM A516/A516M-22. Custom thicknesses up to 200 mm are available on request.
What is the difference between ASME SA516 Gr 70 and ASME SA516 Gr 70N Plate?
The “N” suffix indicates normalised heat treatment. SA 516 Gr 70N undergoes heating above the upper critical temperature (typically 880 to 920°C) followed by air cooling, which refines the grain structure and improves low-temperature impact toughness. Standard SA 516 Gr 70 may be supplied as-rolled for thicknesses up to 40 mm.
What is the temperature range for ASME SA516 Gr 70 Plate?
Service temperature range for SA 516 Gr 70 plate is typically -29°C to +450°C for as-rolled plate per ASME Section VIII Div 1. Normalised plates (SA 516 Gr 70N) with Charpy V-notch impact testing can extend the lower service limit to -45°C for sub-zero applications when specified.
What is the density of ASME SA516 Gr 70 Plate?
The density of SA 516 Gr 70 Plate is 7.85 g/cm³ (7,850 kg/m³), which is standard for carbon and low-alloy steels.
What is the HSN code for SA 516 Gr 70 Plate?
SA 516 Gr 70 Plate generally falls under HSN heading 7208 (flat-rolled products of iron or non-alloy steel, hot-rolled, of width 600 mm or more). Common sub-headings: 7208.51 for plates exceeding 10 mm thickness, and 7208.52 for plates of 4.75 mm to 10 mm thickness. Always verify the exact 8-digit sub-code with your customs broker based on actual plate dimensions and end-use application.
