FEATURE OF ASME SA 516 GRADE 60/70N NACE AND HIC PLATES
ASME SA 516 Grade 60/70N NACE and HIC plates are specialized high-strength carbon steel plates that are designed to meet specific requirements for resistance to hydrogen-induced cracking (HIC) and sulfide stress corrosion cracking (SSC) in sour service environments. These plates are used in industries such as oil and gas, petrochemical, and energy production, where the materials need to withstand harsh conditions. Here are some key features and specifications of ASME SA 516 Grade 60/70N NACE and HIC plates:
High Tensile Strength: ASME SA 516 Grade 60/70N plates have high tensile strength, making them suitable for use in high-pressure applications.
Good Impact Toughness: These plates have good impact toughness, which is essential for applications where the material may be subjected to dynamic loads or sudden temperature changes.
Normalized Heat Treatment: Typically, SA 516 Grade 60/70N plates undergo a normalizing heat treatment process, which refines the grain structure and enhances the overall mechanical properties of the material.
>> What is ASME SA 516 GRADE 60/70N NACE AND HIC PLATES?
>> Equivalent Grade ASME SA 516 GRADE 60/70N NACE AND HIC PLATES
>> Specifications of ASME SA 516 GRADE 60/70N NACE AND HIC PLATES
>> Chemical Composition of ASME SA 516 GRADE 60/70N NACE AND HIC PLATES
>> Mechanical Properties of ASME SA 516 GRADE 60/70N NACE AND HIC PLATES
>> What is ASME SA 516 GRADE 60/70N NACE and HIC Plates?
ASME SA 516 Grade 60/70N NACE and HIC plates are specialized high-strength carbon steel plates that are designed to meet specific requirements for resistance to hydrogen-induced cracking (HIC) and sulfide stress corrosion cracking (SSC) in sour service environments. These plates are typically used in industries such as oil and gas, petrochemical, and energy production, where materials need to withstand harsh and corrosive conditions.
ASME SA 516: ASME stands for the American Society of Mechanical Engineers, and SA 516 is the designation for carbon steel pressure vessel plates. These plates are used in various applications, including the construction of pressure vessels, boilers, and storage tanks.
Grade 60/70: Grade 60 and Grade 70 are specific grades of carbon steel used for pressure vessel applications. They have different minimum tensile strength requirements. Grade 60 has a lower minimum tensile strength compared to Grade 70. The choice between these grades depends on the design and operating conditions of the pressure vessel.
NACE: NACE, which stands for the National Association of Corrosion Engineers, sets standards for materials used in environments containing hydrogen sulfide (H2S). NACE-compliant materials are designed to resist sulfide stress cracking. The inclusion of “NACE” in the designation indicates that these plates meet NACE MR0175 standards, ensuring their suitability for use in sour service environments where H2S is present.
HIC: HIC stands for Hydrogen-Induced Cracking. These plates are resistant to hydrogen-induced cracking, which can occur in environments where hydrogen is present, such as high-pressure and high-temperature conditions.
Normalized: ASME SA 516 Grade 60/70N plates typically undergo a normalization heat treatment process. Normalization refines the grain structure and enhances the overall mechanical properties of the material. This treatment is important to improve the toughness and reliability of the plates in service.
Sour Service Application: These plates are commonly used in sour service environments in the oil and gas industry, especially in applications where there is a risk of hydrogen sulfide exposure. Sour service refers to environments that contain corrosive elements such as H2S.
Testing and Certification: The plates are subjected to various tests to ensure they meet the specific requirements for NACE and HIC service. This may include impact testing, tensile testing, Charpy V-notch testing, and other assessments to verify compliance with standards and specifications.
EQUIVALENT GRADE OF A516 GR.60/70N NACE BOILER PLATES
| British Standard | European Norm | ASTM/ASME | DIN |
| BS1501-161-430A | EN10028 P265GH | A/SA516 – Grade 60 | DIN 17155 HII |
| BS1501-224-490A/B | EN10028 P355GH | A/SA516 – Grade 70 | – |
Test certificates
- Mill Test Certificate (MTC): A Mill Test Certificate is typically provided by the manufacturer and includes details about the chemical composition, mechanical properties, and heat treatment of the plates. It serves as evidence that the plates meet the required specifications and standards.
- NACE and HIC Test Reports: Specific test reports confirming that the plates meet NACE and HIC requirements should be included. These may include HIC test results and NACE compliance statements.
Documentation
- Material Test Reports (MTR): These reports include the results of various tests conducted on the plates, including chemical analysis, mechanical properties, and heat treatment. MTRs should align with ASME and NACE requirements.
- Certificate of Conformance: This document certifies that the delivered plates conform to the relevant standards and specifications.
- Quality Control and Inspection Records: Any records related to quality control and inspections carried out during the manufacturing process.
- Material Data Sheets: These sheets provide detailed information about the material’s properties, including its chemical composition and mechanical properties.
Packaging & marking
- Protective Packaging: The plates should be adequately protected to prevent damage during transit. This may include using wooden crates, plastic wrapping, or other suitable packaging materials.
- Securing for Shipment: Plates should be securely packed to prevent movement and potential damage during shipping.
Shipping of product
- Transportation: Select a reputable shipping company or logistics partner experienced in handling heavy and sensitive materials. Ensure they follow proper handling and transportation practices.
- Delivery Schedules: Coordinate delivery schedules to meet your project’s timelines.
SPECIFICATION
| Grade | ASME SA 516 GR.60/70N Boiler and Pressure Vessel Steel Plates |
| Width | 1000mm-4500mm |
| Thickness | 5mm-150mm |
| Length | 3000mm-18000mm |
| Supply Condition | As Rolled, Normalized Rolling, Furnace Normalizing, Vacuum Degassing, Simulated Post-Weld Heat Treatment or as per customer requirement. |
| Impact tested | 52° C |
| Tempering | Notch toughness can be improved by quenched cooling from hot rolling or normalizing by the supplier. If such a faster cooling rate is agreed upon between purchaser and supplier then the steel is also to be tempered at 1200 F. |
| Applications | Used for weld fabrication of pressure vessels that require improved notch toughness for lower than ambient temperature service. |
| Process of Manufacturing | Hot-Rolled (HR) |
ASME SA 516 Grade 60/70N NACE and HIC plates have specific specifications that make them suitable for use in sour service environments where resistance to hydrogen-induced cracking (HIC) and sulfide stress corrosion cracking (SSC) is crucial. Below are the typical specifications for these plates:
>> Chemical Composition of ASME SA 516 GRADE 60/70N NACE AND HIC PLATES
The chemical composition of ASME SA 516 Grade 60/70N NACE and HIC plates typically falls within specific ranges to meet the requirements of the ASME SA 516 specification. Here is a general overview of the typical chemical composition:
CHEMICAL COMPOSITION OF A516 BQ GR.60/70N NACE AND HIC STEEL PLATES
| C | SI | Mn | P | S | AI | Cr | Cu | Ni | Mo | Nb | Ti | V |
| 0.20 | 0.4 | 0.95/1.50 | 0.025 | 0.025 | 0.02 | 0.3 | 0.3 | 0.3 | 0.08 | 0.03 | 0.02 | 0.01 |
| 0.18 | 0.4 | 0.95/1.50 | 0.015 | 0.008 | 0.02 (Min) | 0.3 | 0.3 | 0.3 | 0.08 | 0.01 | 0.03 | 0.02 |
Carbon (C):
- Grade 60: 0.21% max
- Grade 70: 0.27% max
Manganese (Mn):
- Grade 60: 0.85-1.20%
- Grade 70: 0.85-1.20%
Phosphorus (P):
- Grade 60: 0.035% max
- Grade 70: 0.035% max
Sulfur (S):
- Grade 60: 0.035% max
- Grade 70: 0.035% max
>> Mechanical Properties of ASME SA 516 GRADE 60/70N NACE AND HIC PLATES
The mechanical properties of ASME SA 516 Grade 60/70N NACE and HIC plates are essential for assessing their suitability for specific applications, especially in pressure vessel construction. These properties are subject to specific requirements outlined in the ASME SA 516 specification. Here are the typical mechanical properties for these plates:
MECHANICAL PROPERTIES OF SA516 60/70N NACE RESISTANT STEEL PLATES
| Tensile strength | Yield strength | Elongation min, % 200 mm (8 in) | Elongation min, % 50 mm (2 in) |
| 415-550 MPa | 250 MPa | 21 | 25 |
| 485-620 (70-90) | 260 (38) | 17 | 21 |
Tensile Strength:
- Grade 60: 60,000 psi (415 MPa) minimum
- Grade 70: 70,000 psi (485 MPa) minimum
Yield Strength:
- Grade 60: 32,000 psi (220 MPa) minimum
- Grade 70: 38,000 psi (260 MPa) minimum
Elongation:
- In 8 inches (200mm): 21% minimum for Grade 60, 17% minimum for Grade 70
- In 2 inches (50mm): 25% minimum for Grade 60, 21% minimum for Grade 70
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Plate Size available Ex-Stock of SAILMA 550HI, SAILMA E550, IS 2062 E550
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