Nandini Steel is a trusted supplier and stockist of ASTM A516 / ASME SA-516 Grade 60 and Grade 70 HIC-tested plates in India. We supply HIC-tested pressure vessel plates for wet H₂S sour service environments and are ISO 9001-certified with over two decades of industry experience.
These plates undergo Hydrogen Induced Cracking (HIC) testing per NACE TM0284, with acceptance criteria of CLR ≤15%, CTR ≤5%, and CSR ≤2%. NACE TM0284 Solution A (5% NaCl + 0.5% acetic acid, pH 2.7-4.0, saturated with H₂S) is the standard test environment. HIC-tested plates carry stricter chemistry limits: Sulphur 0.002% max, Phosphorus 0.015% max, with calcium treatment for inclusion shape control.
We stock SA-516 Gr. 60/70 HIC plates in 6 mm to 150 mm thickness, widths up to 3,500 mm, and lengths up to 12,000 mm. Each plate ships with an EN 10204 3.1 Mill Test Certificate and a separate HIC test report. We supply oil and gas, petrochemical, refinery, and power sector projects across India and internationally.
Specifications of ASME SA516 Grade 60/70 HIC Tested Plate
The subsequent sections outline the critical standards and HIC testing criteria for ASTM A516 Grade 60 and 70 plates that have undergone HIC testing.
| Parameter | Value |
| Standard | ASTM A516/A516M / ASME SA-516 |
| HIC Test Standard | NACE TM0284 (Solution A) |
| Sour Service Compliance | NACE MR0175 / ISO 15156 (when combined with NACE certification) |
| Grades | A516 Gr. 60 and Gr. 70 (dual-certified) |
| Thickness | 6 mm to 150 mm (0.236″ to 5.91″) |
| Width | 1,250 mm to 3,500 mm (49″ to 138″) |
| Length | Up to 12,000 mm (472″); cut-to-length available |
| Form | Hot Rolled |
| Edge | Mill Edge, Slit Edge |
| Surface Condition | Mill Scale, Shot Blasted, Pickled, Painted |
| Delivery Condition | Normalised (standard for HIC plates) |
| Heat Treatment | Normalising + tempering for stress relief |
| HIC Acceptance | CLR ≤15%, CTR ≤5%, CSR ≤2% |
Chemical Composition for ASME SA516 Grade 60/70 HIC Tested Plate
Chemical composition limits per ASTM A516/A516M-22, with additional restrictions applied for HIC service. Both Grade 60 and Grade 70 HIC plates apply the same HIC-service chemistry restrictions: Sulphur 0.002% max, Phosphorus 0.015% max, with calcium treatment for sulphide inclusion shape control.
A516 Gr. 60 Chemical Composition
| Element | C (max) | Mn | P (max) | S (max) | Si |
| A516 Gr. 60 | 0.21 | 0.60–0.90 | 0.025 | 0.025 | 0.15–0.40 |
| HIC Service | 0.18 | 0.85–1.20 | 0.015 | 0.002 | 0.15–0.40 |
A516 Gr. 70 Chemical Composition
| Element | C (max) | Mn | P (max) | S (max) | Si |
|---|---|---|---|---|---|
| A516 Gr. 70 | 0.27 | 0.85–1.20 | 0.025 | 0.025 | 0.15–0.40 |
| HIC Service | 0.20 | 0.85–1.20 | 0.015 | 0.002 | 0.15–0.40 |
Mechanical Properties of ASME SA516 Grade 60/70 HIC Tested Plate
Mechanical properties differ between Grade 60 and Grade 70: Grade 70 offers higher tensile and yield strength, while Grade 60 has higher minimum elongation. HIC plates are supplied in normalised condition with hardness limited to 22 HRC max per NACE MR0175 to prevent sulphide stress cracking (SSC).
| Property | Tensile Strength | Yield Strength (min) | Elongation in 50 mm / 2 in. (min) | Hardness (max, for sour service) |
| Grade 60 | 415 to 550 MPa (60 to 80 ksi) | 220 MPa (32 ksi) | 25% | 22 HRC (248 HV) |
| Grade 70 | 485 to 620 MPa (70 to 90 ksi) | 260 MPa (38 ksi) | 21% | 22 HRC (248 HV) |
Equivalent Designations of ASME SA516 Grade 60/70 HIC Tested Plate
The following table maps A516 Grade 60 and Grade 70 to equivalent international standards.
| Country / Standard | Grade 60 | Grade 70 |
| USA (ASTM/ASME) | ASTM A516 Gr. 60 / SA-516 Gr. 60 | ASTM A516 Gr. 70 / SA-516 Gr. 70 |
| Europe (EN 10028-2) | P265GH (1.0425) | P355GH (1.0473) |
| Japan (JIS G3115) | SGV410 | SGV480 |
| China (GB 713) | Q245R | Q345R |
| India (IS 2002) | Grade 2A | Grade 2B |
| Germany (DIN 17155) | HII | 19Mn6 |
| France (NFA 36-205) | A42FP | A52FP |
| UK (BS 1501) | 161 Gr. 400 | 224 Gr. 490 |
Industrial Applications of ASME SA516 Grade 60/70 HIC Tested Plate
Oil and Gas Refineries and Sour Service Equipment
Hydrocrackers, separators, sour gas knockout drums, and amine treaters where wet H₂S service is present.
Petrochemical and Chemical Processing Plants
Reactor vessels and storage tanks in sulphur recovery units, ammonia plants, and gas processing facilities.
Power Generation and Boiler Systems
High-pressure feedwater heaters and FGD vessels in coal-fired plants with sulphur-bearing flue gas exposure.
LPG and Gas Storage Vessels
API 620 storage spheres, bullets, and pressure vessels for LPG, propane, and sour natural gas.
Distributor of the Following Manufacturers
We supply HIC-tested A516 plates from the following authorised mills, each capable of meeting NACE TM0284 acceptance criteria.
Tata Steel
ArcelorMittal Industeel
Nandini Steel supplies ASTM A516 Gr. 60/70 HIC plates to all major industrial hubs in India. Our stock points and delivery network cover the various cities.
| 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 SA-516 Gr. 60/70 HIC-tested plates to oil and gas projects across the Middle East, Southeast Asia, Africa, Europe, and the Americas. All shipments include EN 10204 3.1 Mill Test Certificates and full HIC test reports.
| 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 HIC testing in ASME SA516 Grade 60/70 Plates?
HIC testing checks the resistance of steel plates to Hydrogen Induced Cracking. The test follows NACE TM0284 / AMPP TM0284 and measures CLR, CTR, and CSR values. Plates that pass HIC testing are suitable for sour service environments containing wet H2S.
What is the difference between standard ASME SA516 Gr. 70 and HIC tested ASME SA516 Gr. 70?
HIC-tested plates apply stricter chemistry than standard A516: Sulphur 0.002% max (vs 0.025% max) and Phosphorus 0.015% max (vs 0.025% max), with calcium treatment for inclusion shape control. Plates additionally undergo NACE TM0284 testing with acceptance criteria CLR ≤15%, CTR ≤5%, CSR ≤2%. Price premium is typically 15 to 30% over standard A516.
What thickness range is available for SA-516 Gr. 60/70 HIC Plates?
HIC tested plates are available in thicknesses from 6 mm to 150 mm (0.24 in. to 5.9 in.). Widths go up to 3,500 mm and lengths up to 12,000 mm.
What is the price of ASME SA516 Gr. 70 HIC Plate per kg?
SA 516 Gr. 60/70 HIC-tested plate prices in India range from ₹85 to ₹150 per kg (USD $1.00 to $1.80 per kg for export). Final pricing depends on thickness, quantity, mill origin, and certification scope (HIC alone vs HIC + NACE MR0175). Contact us with your exact size and quantity for a detailed quotation.
Does Nandini Steel provide mill test certificates with HIC Plates?
Yes. Every plate ships with an EN 10204 3.1 Mill Test Certificate along with a separate HIC test report. Third-party inspection (TPI) is available on request.
Are ASME SA516 Gr. 60/70 HIC Plates available in a normalised condition?
Yes. Normalising is standard for HIC plates. The plate is heated above the upper critical temperature (Ac3 ~890°C) and then air cooled to produce a uniform fine-grained ferritic-pearlitic microstructure. This refines grain structure, eliminates hard spots, ensures hardness stays below 22 HRC (NACE MR0175 limit), and provides consistent HIC resistance throughout the plate thickness.
