Boiler and HIC-resistant steel plates are crucial in industries where high-pressure, high-temperature, and corrosive environments are prevalent, such as oil and gas, petrochemical, and power generation. These plates are designed for safety, durability, and performance under challenging conditions.
Boiler steel plates are specially designed to withstand high pressure and temperature in boilers, pressure vessels, and heat exchangers.
High strength to handle pressure without deformation.
Good toughness to resist cracking under stress.
Excellent weldability for fabricating complex shapes.
ASTM A516 (Grades 55, 60, 65, 70):
Widely used for moderate- and low-temperature services.
Excellent weldability and notch toughness.
Applications: Pressure vessels, heat exchangers, storage tanks.
EN 10028-2 (P265GH, P295GH, P355GH):
European standard boiler steels.
Suitable for elevated temperatures.
Applications: Industrial boilers and chemical reactors.
DIN 17155 (HI, HII):
German standard grades for pressure vessel applications.
Good weldability and toughness.
ASME SA387 (Grade 11, 12, 22):
Chromium-molybdenum Alloy steel plates.
Excellent resistance to high temperature and creep.
Applications: Oil refinery equipment and power plants.
HIC (Hydrogen-Induced Cracking)-resistant plates are engineered to combat hydrogen damage in steel. These plates are critical in environments with wet H₂S (hydrogen sulfide), often found in the oil and gas sector.
High resistance to hydrogen embrittlement and cracking.
Toughness and strength for use in corrosive environments.
Manufactured to meet stringent testing standards like NACE MR0175 and NACE TM0284.
ASTM A516 HIC-Resistant (Grades 60, 65, 70):
Specially treated to resist HIC.
Ideal for sour service applications.
Applications: Sour gas processing, storage tanks, pressure vessels.
EN 10207 HIC-Resistant Steel:
European grades designed for HIC resistance.
Suitable for wet H₂S service in refineries and pipelines.
API 5L HIC-Resistant Grades:
Line pipe grades (X52, X60, X70) with HIC resistance.
Used in pipeline systems carrying sour gas.
| Element | Boiler Steel | HIC-Resistant Steel |
|---|---|---|
| Carbon (C) | ≤ 0.30% | ≤ 0.20% (lower for HIC steels) |
| Manganese (Mn) | 0.60–1.50% | 1.00–1.50% |
| Sulfur (S) | ≤ 0.030% | ≤ 0.002% |
| Phosphorus (P) | ≤ 0.030% | ≤ 0.015% |
| Other | Chromium, Molybdenum (for high-temperature resistance). | Controlled inclusion shape to resist cracking. |
Testing: Tensile strength, impact toughness, and ultrasonic testing.
Standards: ASTM A516, EN 10028, DIN 17155, ASME SA387.
Testing: Hydrogen-induced cracking resistance, ultrasonic testing, and chemical analysis.
Standards: NACE TM0284, NACE MR0175, ASTM A516 (HIC).
Steam boilers.
Heat exchangers.
Pressure vessels in the chemical and petrochemical industries.
Sour gas pipelines.
Offshore oil rigs.
Pressure vessels in corrosive environments.
| Feature | Boiler Steel Plates | HIC-Resistant Steel Plates |
|---|---|---|
| High Strength | Handles high pressure. | Resists cracking under pressure. |
| Corrosion Resistance | Moderate resistance. | Excellent resistance to H₂S. |
| Toughness | Withstands impact at low temperatures. | Prevents embrittlement. |
| Weldability | Easy to fabricate. | Low-hydrogen weldable. |
| Consideration | Boiler Steel | HIC-Resistant Steel |
|---|---|---|
| Pressure & Temperature | High-pressure and high-temperature environments. | High-pressure with sour gas exposure. |
| Corrosion Potential | Low to moderate risk. | High risk of hydrogen sulfide. |
For further assistance with selecting or processing boiler or HIC-resistant steel plates, feel free to ask!
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