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 up to 0.27% carbon for plates 12.5 mm and below (rising to 0.31% for thicker sections), 0.85 to 1.20% manganese, and 0.15 to 0.40% silicon.
SA-516 Gr 70 plate delivers tensile strength of 485 to 620 MPa (70 to 90 ksi) and minimum yield strength of 260 MPa (38 ksi). All plates ship in normalised condition. Thicknesses range from 6 mm to 200 mm, widths up to 3,500 mm, and lengths up to 12,000 mm. 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 | 1,000 mm to 3,500 mm | |||||
| Length | Up to 12,000 mm; custom lengths available | |||||
| Condition | Normalised (mandatory for NACE/HIC service) | |||||
| Surface | Hot-Rolled, Shot-Blasted, Primer-Coated (as required) | |||||
Other Types of ASME SA / ASTM A516 GR 70 (NACE + HIC) Plates
SA 516 GR.70 Dual Certified HIC Nace Tested Plates
SA 516 GR.70 NACE + HIC Boiler Quality Steel Plate
SA 516 GR.70 NACE + HIC Plate Manufacturers
ASME SA 516 GR.70 Nace MR-0103 Plates
ASME SA 516 Grade 70 Chemical Composition
The chemical composition of Grade 70 is listed below in the table along with its proportion in percentage.
| 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 | 0.035 max (standard), 0.015% max (NACE / HIC Requirement) | 0.035 max, 0.003% max (NACE / HIC Requirement) | 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% | 248 HV max / 235 HBW max |
| Imperial | 70 to 90 ksi | 38 ksi | 21% | 22 HRC max |
ASME SA516 Gr 70 Equivalent Grades & Designations
| Country / Standard | Designation |
| USA | UNS K02700 |
| Europe | EN 10028-2 P355GH |
| Europe | W.Nr 1.0473 |
| Japan | JIS G3118 SGV480 |
| China | GB 713 Q345R |
| UK | BS 1501-161-430B |
| Germany | 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 MR0103 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.
Power Generation
SA 516 Gr 70 plate is specified for boiler drums, economisers, and deaerator vessels operating at moderate temperatures.
Impact Testing for NACE / HIC Applications
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
ThyssenKrupp
Nippon Steel & Sumitomo Metal
Posco
JFE Steel Corporation
ASME SA / ASTM A516 GR 70 (NACE + HIC) Plates 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?
SA 516 Gr 70 NACE HIC plate costs approximately Rs. 85 to Rs. 120 per kg in India and $1.08 and $1.60 per kg internationally. Contact us for a current quote.
What is the difference between ASME SA 516 Gr 70 and SA 516 Gr 70N?
The “N” suffix indicates normalised heat treatment. SA516-70N plate is heated above the austenitising temperature and air-cooled, refining the grain structure for improved low-temperature toughness.
What are the additional chemistry restrictions for ASME SA 516 Gr 70 NACE HIC Plate?
Sulphur is restricted to 0.003% max, phosphorus to 0.015% max, and carbon equivalent to 0.43 max for NACE/HIC service. Standard A516 allows 0.025% max for both S and P, while NACE/HIC service requires significantly tighter limits.
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?
