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Home > Our Products > Boiler & Pressure Vessel Steel Plates > Grade / Specification > HIC Tested Boiler Plates
Hindustan Steel Corporation supplies HIC tested boiler-quality steel plates designed to withstand hydrogen-induced cracking (HIC) in aggressive and sour environments. These plates are rigorously tested under NACE TM0284 / ASTM G39 standards, ensuring their suitability for pressure vessels, separators, and process equipment exposed to hydrogen sulfide (H₂S) and wet corrosion.
Our HIC-resistant plates are available in SA516 Gr 60 / Gr 70, SA537, and EN 10028 variants, stocked in normalized condition, and supported with HIC test reports, MTCs, and TPI inspections. Ideal for oil & gas, petrochemical, and fertilizer sectors.
HIC stands for Hydrogen-Induced Cracking, a phenomenon that occurs when atomic hydrogen diffuses into steel, causing internal blistering and cracks, especially in sour environments rich in hydrogen sulfide (H₂S).
A HIC tested plate is one that has passed stringent evaluations using NACE TM0284, confirming its resistance to:
HIC resistance is critical for materials used in sour service vessels, offshore platforms, and hydrocarbon processing units.
HIC tested plates arse required in critical environments prone to hydrogen damage, including:
Also used in boiler drums, heat exchangers, and wet sour gas vessels, especially where standard carbon steel would fail due to internal cracking.
HIC testing is independent of the base mechanical specs — typically applied to grades like SA516 or EN 10028. A general example (SA516 Gr 70 HIC tested):
| Property | Value |
|---|---|
| Yield Strength (min) | 260–275 MPa |
| Tensile Strength | 485–620 MPa |
| Elongation (%) | ≥ 17–21% |
| Impact Toughness | >27J at -20°C (optional) |
| HIC Test Ratio (CLR/CATR) | CLR < 15%, CTR < 1.5% (NACE) |
| Thickness Range | 6mm – 100mm |
Plates must pass Ultrasonic Testing + HIC test + MTC correlation for full acceptance.
HIC testing is not a steel grade in itself, but a qualification applied to pressure vessel plates like SA516 Gr 60/70, EN 10028 P265GH, or ASTM A387. These plates undergo HIC testing under the following global standards:
Common HIC Testable Steel Grades:
| Standard | Grade | Application |
|---|---|---|
| ASME | SA516 Gr 60 / 70 | Pressure vessels, separators |
| ASTM | A516, A537 Cl 1/2 | Sour gas boilers & columns |
| EN | EN 10028-2 P265GH | Chemical reactors, wet gas units |
| DIN | DIN 17155 HII | Urea and ammonia plants |
Important: Not all SA516 or P265GH plates are HIC tested — only those tested and certified per TM0284 can be called HIC-resistant.
Hindustan Steel Corporation offers a wide stock range of HIC-tested boiler plates, supplied in mill-certified and third-party inspected lots.
| Parameter | Range |
|---|---|
| Thickness | 6mm to 100mm |
| Width | 1000mm to 3000mm |
| Length | 3000mm to 12000mm |
| Plate Finish | Hot rolled, normalized |
| Edge Condition | Mill edge, trimmed, beveled |
| Delivery Condition | N, N+HIC, NACE-compliant |
Cut-to-size and profiling available on request.
HIC tested steel plates undergo rigorous inspection as per NACE TM0284 / ASTM G39. Here’s how it works:
Sample Plate Test (per heat/lot):
| Test Index | Maximum Value Allowed |
|---|---|
| CLR (Crack Length Ratio) | ≤ 15% |
| CTR (Crack Thickness Ratio) | ≤ 1.5% |
| CSR (Crack Sensitivity Ratio) | ≤ 2% |
Plates that pass are stamped as “HIC Passed – NACE Certified” with traceable MTC.
While HIC-tested plates are more robust internally, fabrication guidelines are similar to standard boiler plates. Key recommendations:
Ensure HIC test is revalidated post heavy forming or severe service conversion.
We are one of India’s leading stockholders and exporters of HIC-tested pressure vessel plates, trusted for quality, testing compliance, and global reliability.
Our Key Strengths:
We serve EPC contractors, pressure vessel fabricators, and petrochemical OEMs across 40+ countries.
You can request HIC testing for a wide range of boiler-quality and alloy plates:
Also available with PWHT simulation, NACE compliance, and SOHIC qualification.
At Hindustan Steel Corporation, we serve both domestic and international demand for HIC tested boiler plates — delivering to over 42 countries across:
Export Packaging Includes:
We support FOB, CFR, and DAP incoterms with fast port access from Nhava Sheva, Kandla, and Mundra.
If you’re selecting HIC resistant plates, use this quick checklist:
Tip: Many suppliers sell regular BQ plates as “HIC”—ask for the HIC test report before finalizing.
Hindustan Steel Corporation supplies HIC tested plates with the following compliance documents:
All plates are heat-number traceable and testing is done per order batch or mill lot.
It means the steel plate has passed hydrogen-induced cracking tests under NACE TM0284, ensuring safe use in sour service.
SA516 Gr 70, EN 10028 P265GH, DIN HII, ASTM A387 Gr 11/22, and more.
HIC = Hydrogen Induced Cracking.
Yes, we stock dual-certified SA516 Gr 70 HIC tested plates.
HIC testing checks for internal cracks; NACE compliance ensures overall sour service resistance.
Sample plates are exposed to H₂S solution and tested for crack ratios (CLR, CSR, CTR) over 96–168 hours.
Yes, for sour environments or hydrogen-rich zones, HIC testing is critical.
NACE TM0284 and ASTM G39 are the primary standards.
Yes, it can be tested and certified per TM0284
CSR = Crack Sensitivity Ratio; it shows the plate’s resistance to microcracking.
Typically below 15% for most industrial applications.
Yes, due to additional testing, but they offer safety and reliability in sour environments.
Yes, A387 Gr 11/22 plates can also be HIC tested on request.
Hindustan Steel Corporation is a trusted supplier with global export and 100% certified stock.
Request Datasheet, Quote or Stock Check
Looking for price, delivery timeline, or datasheet of HIC Tested Plates?
Mention the base grade, thickness, and HIC test report type (TM0284 or MR0175), and we’ll respond within 4 working hours.
Bulk orders and urgent export requirements welcomed.
+91-22-66159018
+91-9820944724
sales@hindustansteel.com hindustansteel1@gmail.com
390/392, Ground Floor, Shankar Mansion, S.V.P. Road, Mumbai – 400004, India
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