Nandini Steel is a trusted ASME SA 516 Grade 70 (NACE + HIC) plate supplier and stockist in Mumbai, India, with over 25 years of experience. We supply SA-516 Gr 70 pressure vessel plate fully compliant with NACE MR0175 / ISO 15156 for sour service environments, with HIC testing per NACE TM0284. This carbon-manganese plate contains 0.27% to 0.31% (varies with thickness) carbon, 0.85 to 1.20% manganese, and 0.15 to 0.40% silicon. For NACE/HIC service, we stock plates with restricted sulphur at 0.003% max and phosphorus at 0.015% max.
SA-516 Gr 70 plate offers tensile strength of 485 to 620 MPa (70 to 90 ksi) and minimum yield strength of 260 MPa (38 ksi). All NACE/HIC sour service plates are supplied in normalised state with obligatory conformity to HIC resistance. Thicknesses range from 6 mm to 200 mm, widths 1000mm to 3,500 mm, and lengths 2000 mm to 12,000 mm; custom range available. Oil and gas, refinery, petrochemical, and power generation industries specify this A516 Gr 70 NACE HIC plate for sour service pressure vessels. We are ISO 9001 certified and supply all plates with mill test certificates.
ASME SA 516 Gr 70 (NACE + HIC) Plate Specifications
| Parameter | Details | |||||
| Standard | ASME SA-516 / ASTM A516 | |||||
| Thickness | 6 mm to 200 mm | |||||
| Width | Up to 3,500 mm | |||||
| Length | Up to 12,000 mm; custom lengths available | |||||
| Condition | Normalised (mandatory for NACE/HIC service) | |||||
| Surface | Hot-rolled (as standard); shot-blasted and primer-coated available on request. | |||||
Other Types of SA 516 Gr. 70 Plate
ASTM A516 Boiler Quality Plates
ASTM A515 Boiler Quality Plate
SA 516 Boiler Quality Plate
SA387 Boiler Quality Plates
ASME SA 516 Grade 70 Chemical Composition
| Element | Carbon (C) | Manganese (Mn) | Phosphorus (P) | Sulphur (S) | Silicon (Si) | Carbon Equivalent (CE) |
| Composition (%) | 0.27 max (up to 12.5 mm) 0.28 max (>12.5 to 50 mm) 0.30 max (>50 to 100 mm) 0.31 max (>100 to 200 mm) | 0.85 to 1.20 (Heat analysis, ≤12.5 mm) 0.79 to 1.30 (Product analysis, ≤12.5 mm) 0.85 to 1.20 (Heat analysis, >12.5 mm) 0.79 to 1.30 (Product analysis, >12.5 mm) | 0.025 max | 0.025 max | 0.15 to 0.40 | 0.43 max (IIW formula: CE = C + Mn/6 + (Cr+Mo+V)/5 + (Ni+Cu)/15) |
ASME SA-516 Gr 70 Mechanical Properties
| Property | Tensile Strength | Yield Strength (min) | Elongation (min, 50 mm gauge) | Hardness (NACE requirement) |
| Metric | 485 to 620 MPa | 260 MPa | 21% | ≈ 237 HV / ≈ 228 HBW |
| Imperial | 70 to 90 ksi | 38 ksi | 21% | 22 HRC max |
ASME SA516 Gr 70 Equivalent Grades & Designations
| Country / Standard | Designation | |||||
| USA (UNS) | UNS K02700 | |||||
| Europe (EN) | EN 10028-2 P355GH | |||||
| Europe (W.Nr) | 1.0473 | |||||
| Japan (JIS) | JIS G3118 SGV480 | |||||
| China (GB) | GB 713 Q345R | |||||
| UK (BS, superseded) | BS 1501-161-430B | |||||
| Germany (DIN, superseded) | DIN 17155 HII | |||||
For NACE/HIC service, normalisation is required regardless of thickness.
ASME SA 516 Gr 70 NACE HIC Plate Industrial Applications
Oil & Gas Processing
A516 Gr 70 sour service plate is used for separators, slug catchers, and gas sweetening vessels in upstream operations.
Refinery & Petrochemical Equipment
SA-516 Gr 70 NACE MR0175 plates serve hydrocracker reactors, amine towers, and sour water stripper columns.
Chemical & Fertiliser Plants
This plate grade is selected for ammonia converters, urea reactors, and acid gas storage vessels.
ASME SA 516 Gr 70 (NACE + HIC) Plate Sizes
| Parameter | Available Range | |||||
| Thickness | 6 mm to 200 mm (1/4 in. to 8 in.) | |||||
| Width | 1,000 mm to 3,500 mm (40 in. to 138 in.) | |||||
| Length | 2,000 mm to 12,000 mm (80 in. to 472 in.) | |||||
| Custom Sizes | Available per client specification | |||||
Distributor of The Following Manufacturers
SA 516 Gr. 70 Boiler Quality Plate Finish Types
Nandini Steel supplies A516 Gr 70 NACE HIC 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) | Kolkata (West Bengal) | Bhubaneswar (Odisha) |
| Dehradun (Uttarakhand) | Ranchi (Jharkhand) | Jamshedpur (Jharkhand) | Chandrapur (Maharashtra) |
| Dhanbad (Jharkhand) | Aligarh (Uttar Pradesh) | Bhubaneswar (Odisha) | Aurangabad (Maharashtra) |
| Tiruchirappalli (Tamil Nadu) | Srinagar (Jammu & Kashmir) | Ludhiana (Punjab) | Warangal (Telangana) |
| Kolkata (West Bengal) | 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, Denmark, USA, Canada, Mexico, Panama | |||||
| Europe | Netherlands, Belgium, Greece, Portugal, Hungary, 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 SA 516 Gr 70 NACE HIC Plate per kg?
What is the difference between ASME SA 516 Gr 70 and SA 516 Gr 70N?
What are the additional chemistry restrictions for ASME SA 516 Gr 70 NACE HIC Plate?
What is the HIC acceptance criteria for ASME SA 516 Gr 70 NACE TM0284 testing?
HIC test results must satisfy: CLR 15% max, CTR 5% max, CSR 2% max. Some end-users specify tighter limits.
What is the carbon equivalent formula for ASME SA 516 Gr 70 NACE HIC Plate?
How to verify NACE MR0175 compliance on an ASME SA 516 Gr 70 Plate MTC?
