ASTM A516 Grade 60
Carbon Steel ASTM A516 Grade 60
ASTM A516 Grade 60 Carbon Steel is a pressure-vessel-grade carbon steel plate primarily used for welded pressure vessels and industrial equipment requiring good strength, toughness, and weldability.
The ASTM A516/A516M specification covers carbon steel plates intended for pressure vessels and applications where improved resistance to brittle fracture is required.
Grade 60 provides a good balance of mechanical strength, ductility, toughness, weldability, and formability. Compared with Grade 55, Grade 60 provides a higher minimum strength level while maintaining good fabrication characteristics.
It is widely used in oil & gas facilities, refineries, petrochemical plants, power generation, chemical processing, storage systems, boilers, and pressure-vessel fabrication.
Key Features
- Carbon steel pressure-vessel plate
- Higher strength than Grade 55
- Good ductility
- Good toughness
- Good weldability
- Good formability
- Suitable for welded pressure vessels
- Suitable for process equipment
- Available in a wide range of thicknesses
- Suitable for fabrication according to applicable ASME requirements
- Can be supplied with additional testing and inspection requirements
ASTM A516 Grade 60 Specifications
| Specification | Details |
|---|---|
| Grade | ASTM A516 Grade 60 |
| Material | Carbon Steel |
| Standard | ASTM A516/A516M |
| Product | Steel Plate |
| Product Type | Pressure Vessel Plate |
| Tensile Strength | 415–550 MPa |
| Yield Strength | ≥ 220 MPa |
| Weldability | Good |
| Toughness | Good |
| Main Applications | Pressure Vessels, Boilers, Tanks, Process Equipment |
ASTM A516 Grade 60 Plate Dimensions
ASTM A516 Grade 60 can be supplied in a wide range of plate dimensions and thicknesses.
Common Supply Forms
- Standard-size plates
- Cut-to-size plates
- Heavy plates
- Plates cut according to engineering drawings
- Custom dimensions according to project requirements
The required plate thickness is determined by factors such as:
- Design pressure
- Design temperature
- Vessel diameter
- Corrosion allowance
- Material strength
- Construction code
- Fabrication requirements
- Customer specifications
ASTM A516 Grade 60 Chemical Composition
The chemical composition depends on the applicable specification and plate thickness.
| Element | Typical / Maximum Requirement (%) |
|---|---|
| Carbon (C) | ≤ 0.26* |
| Manganese (Mn) | ≤ 0.90* |
| Phosphorus (P) | ≤ 0.035 |
| Sulfur (S) | ≤ 0.035 |
| Silicon (Si) | 0.15–0.40 |
| Copper (Cu) | As applicable |
| Nickel (Ni) | As applicable |
| Chromium (Cr) | As applicable |
| Molybdenum (Mo) | As applicable |
| Iron (Fe) | Balance |
*Chemical limits can vary according to plate thickness and the applicable requirements. The certified chemistry should always be verified against the applicable edition of ASTM A516/A516M and the manufacturer’s Mill Test Certificate (MTC).
ASTM A516 Grade 60 Mechanical Properties
| Property | Requirement |
|---|---|
| Tensile Strength | 415–550 MPa |
| Yield Strength | ≥ 220 MPa |
| Elongation | According to plate thickness |
| Impact Toughness | When specified |
Grade 60 offers a higher strength level than Grade 55 while maintaining suitable ductility and weldability for pressure-vessel fabrication.
Toughness and Impact Resistance
ASTM A516 Grade 60 is intended for applications where good notch toughness is important.
It is suitable for applications such as:
- Pressure vessels
- Boilers
- Storage vessels
- Process equipment
- Oil & gas equipment
- Chemical processing equipment
Where required by the construction code or purchaser, Charpy V-notch impact testing may be specified at a designated temperature.
Physical Properties
Typical physical properties of carbon steel include:
| Property | Approximate Value |
|---|---|
| Density | 7.85 g/cm³ |
| Modulus of Elasticity | ≈ 200 GPa |
| Thermal Conductivity | ≈ 45–55 W/m·K |
| Thermal Expansion Coefficient | ≈ 11–12 × 10⁻⁶ /°C |
| Magnetic Properties | Magnetic |
Actual engineering values should be taken from the applicable material specification and design code.
Corrosion Resistance
ASTM A516 Grade 60 is a carbon steel, so it does not provide the inherent corrosion resistance associated with stainless steel.
It can be susceptible to:
- Atmospheric corrosion
- Moisture
- Water
- Chlorides
- Marine environments
- Chemical attack
- Internal corrosion caused by process fluids
Corrosion Protection
Depending on the operating environment, protection may include:
- Industrial painting
- Epoxy coatings
- Internal linings
- Cathodic protection
- Corrosion inhibitors
- Corrosion allowance in the equipment design
For highly corrosive services, stainless steel, alloy steel, or clad plate may be considered.
Heat Treatment
Heat treatment requirements depend on plate thickness, manufacturing process, fabrication conditions, and the applicable ASTM or ASME requirements.
Normalizing
Normalizing helps produce a more uniform microstructure and balanced mechanical properties.
Annealing
Annealing can be used to improve ductility and reduce residual stresses.
Normalizing and Tempering
May be specified for particular applications or thicknesses when required to achieve specific mechanical properties or toughness.
For pressure-vessel fabrication, heat treatment must comply with ASTM A516/A516M and the applicable construction code.
Welding
ASTM A516 Grade 60 has good weldability and is widely used for welded pressure-vessel construction.
Common Welding Processes
- SMAW
- GTAW / TIG
- GMAW / MIG
- FCAW
- SAW
Typical Welding Applications
- Vessel shell fabrication
- Head and shell welding
- Pressure vessels
- Storage tanks
- Boilers
- Heat exchangers
- Process equipment
Depending on plate thickness, design temperature, welding procedure, and applicable code, requirements may include:
- Preheating
- Interpass temperature control
- Qualified welding procedures
- Post-weld heat treatment (PWHT)
Manufacturing Process
ASTM A516 Grade 60 plates are produced through controlled steelmaking and plate-processing operations.
Typical Manufacturing Steps
- Steelmaking
- Continuous casting or ingot production
- Slab preparation
- Hot rolling
- Heat treatment
- Cutting
- Surface conditioning
- Dimensional inspection
- Mechanical testing
- Impact testing when specified
- Non-destructive testing when required
- Final inspection and marking
Quality Control and Testing
Pressure-vessel plates may require comprehensive quality control depending on the project.
Typical Tests
- Chemical analysis
- Tensile testing
- Yield-strength testing
- Elongation testing
- Charpy impact testing when specified
- Dimensional inspection
- Visual inspection
- Ultrasonic testing (UT)
- Surface inspection
- Heat-treatment verification
- Material traceability
Material Documentation
Depending on the order requirements, plates can be supplied with:
- Mill Test Certificate (MTC)
- Chemical analysis report
- Mechanical test results
- Heat-treatment records
- Charpy impact results where applicable
- Inspection certificates
- Material traceability documentation
Applications
Oil & Gas Industry
- Pressure vessels
- Separators
- Storage vessels
- Process equipment
- Hydrocarbon-processing equipment
Refineries
- Pressure vessels
- Boilers
- Heat exchangers
- Process equipment
- Storage systems
Petrochemical Industry
- Reactors
- Process vessels
- Columns
- Pressure equipment
- Industrial tanks
Power Generation
- Boilers
- Pressure vessels
- Process tanks
- Auxiliary equipment
- Steam-related equipment
Chemical Industry
- Reaction vessels
- Storage tanks
- Pressure equipment
- Process systems
ASTM A516 Grade 60 vs Grade 55
| Property | ASTM A516 Grade 55 | ASTM A516 Grade 60 |
|---|---|---|
| Material | Carbon Steel | Carbon Steel |
| Product | Plate | Plate |
| Tensile Strength | 380–515 MPa | 415–550 MPa |
| Yield Strength | ≥ 205 MPa | ≥ 220 MPa |
| Strength Level | Lower | Higher |
| Weldability | Good | Good |
| Toughness | Good | Good |
| Main Application | Pressure Vessels | Pressure Vessels |
| Selection | Design dependent | Design dependent |
Grade 60 may be selected when a project requires higher mechanical strength while retaining the general fabrication characteristics of carbon steel pressure-vessel plate.
ASTM A516 Grade 60 in Tunisia, Algeria, Morocco & Libya
Carbon Steel ASTM A516 Grade 60 can be used for industrial projects in Tunisia, Algeria, Morocco, and Libya, particularly for the manufacture of:
- Pressure vessels
- Storage tanks
- Boilers
- Heat exchangers
- Process equipment
- Oil & gas equipment
- Petrochemical equipment
Depending on the end user and project requirements, specifications may include:
- ASTM A516/A516M
- ASME Section II
- ASME Section VIII
- ASME Section IX for welding qualification
Final material selection should consider design pressure, design temperature, plate thickness, impact requirements, corrosion allowance, welding requirements, heat treatment, inspection requirements, and applicable construction codes.
Conclusion
Carbon Steel ASTM A516 Grade 60 is a pressure-vessel-quality carbon steel plate offering an excellent balance of mechanical strength, ductility, toughness, weldability, and formability.
With a tensile strength of 415–550 MPa and a minimum yield strength of 220 MPa, Grade 60 provides a higher strength level than ASTM A516 Grade 55.
It is widely used in pressure vessels, boilers, heat exchangers, storage tanks, refineries, petrochemical plants, chemical facilities, power plants, and oil & gas installations.
For projects in Tunisia, Algeria, Morocco, and Libya, ASTM A516 Grade 60 is a practical material solution when pressure, temperature, thickness, toughness, welding, heat treatment, inspection, and applicable ASTM/ASME requirements are properly specified.
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