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Introduction
EN 10028-7 covers flat products made of stainless
steels for pressure purposes. It includes stainless steel sheets, plates, and
strips used in pressure vessels and equipment where corrosion resistance,
mechanical strength, elevated-temperature performance, and reliable service are
required. The standard includes ferritic, martensitic, austenitic, duplex, and
austenitic creep-resisting stainless steels.
EN 10028-7 stainless steel sheets and plates are
widely used in chemical processing, petrochemical, oil and gas, power
generation, heat exchangers, pressure vessels, food processing, pharmaceutical
equipment, and other corrosive-service applications.
Ladhani Metal Corporation is a manufacturer, supplier, and exporter of EN 10028-7 Stainless Steel Sheet & Plate, supplying stainless steel pressure vessel products in various grades, thicknesses, widths, lengths, surface finishes, heat-treatment conditions, and customized dimensions worldwide.
Applicable Standard
Standard Specification: EN 10028-7
Organization: European Committee for
Standardization (CEN)
Title: Flat Products Made of Steels for
Pressure Purposes – Part 7: Stainless Steels
Material Type: Stainless Steel
Product Forms: Sheet, Plate and Strip
EN 10028-7 specifies requirements for stainless steel flat products intended for pressure purposes, including austenitic creep-resisting stainless steels.
Material Types
• Ferritic Stainless Steel
• Martensitic Stainless Steel
• Austenitic Stainless Steel
• Duplex Stainless Steel
• Creep-Resisting Austenitic Stainless Steel
• Corrosion-Resistant Stainless Steel
Forms of Supply
• Stainless Steel Sheets
• Stainless Steel Plates
• Stainless Steel Strips
• Pressure Vessel Plates
• Heat Exchanger Plates
• Boiler Plates
• Hot Rolled Plates
• Cold Rolled Sheets
• Cut-to-Length Plates
• Custom Cut Sheets
Grades Covered Under EN 10028-7
Ferritic Stainless Steel
X2CrNi12 | X6CrNiTi12 | X2CrTi17 |
X2CrMoTi18-2 | X2CrMoTiS18-2 | X2CrMoTi18-2 | X2CrMoTiS18-2 | X2CrMoTi18-2
Martensitic Stainless Steel
X3CrNiMo13-4 | X4CrNiMo16-5-1
Austenitic Stainless Steel
X2CrNi19-11 | X2CrNi18-9 | X2CrNiN18-10 |
X5CrNiN19-9 | X2CrNiN18-7 | X1CrNi25-21 | X1CrNiSi18-15-4 | X2CrMnNiN17-7-5 |
X12CrMnNiN17-7-5 | X5CrNiMo17-12-2 | X2CrNiMo17-12-2 | X2CrNiMoN17-11-2 |
X2CrNiMoN21-9-1 | X2CrNiMoN17-13-3 | X6CrNiTi18-10 | X6CrNiNb18-10 |
X6CrNiMoTi17-12-2 | X2CrNiMo18-14-3 | X2CrNiMo18-15-4 | X2CrNiMo18-15-4 |
X1NiCrMoCu25-20-5 | X1CrNiMoCu25-22-2
Duplex Stainless Steel
X2CrNiN23-4 | X2CrNiMoN22-5-3 |
X2CrNiMoCuWN25-7-4 | X2CrNiMoCuN25-6-3 | X2CrMnNiMoN21-5-3 |
X2CrNiMnMoCuN24-4-3-2
Creep-Resisting Stainless Steel
X6CrNi18-11 | X10CrNi18-8 | X6CrNiMoNb18-12 |
X6CrNiMoTi17-12-2 | X8CrNiMoNb16-16 | X15CrNiSi25-21 | X10CrWMoVNb9-2 |
X10CrWMoVNb9-2
The EN 10028-7 grade range is extensive and includes grades derived largely from EN 10088-2 together with creep-resisting grades from EN 10302.
Patented Steel Grades Under EN
10028-7
EN 10028-7:2016 specifically identifies
certain grades as patented steels. The standard states that compliance may
involve the use of patents concerning eight steel grades and identifies the
relevant patent holders.
Patented Grades
• 1.4062 – X2CrNiN22-2
• 1.4162 – X2CrMnNiN21-5-1
• 1.4662 – X2CrNiMnMoCuN24-4-3-2
• 1.4420 – X2CrNiMoN21-9-1
• 1.4611 – X2CrTi21
• 1.4613 – X2CrTi24
• 1.4646 – X6CrMnNiCuN18-2-4-2
• 1.4501 – X2CrNiMoCuWN25-7-4
The 2016 edition identifies patent-related
information for these grades and notes that patent rights may also exist for
other elements of the document.
For commercial supply, the applicable patent and licensing status should be verified for the specific grade and intended use before claiming that a product is supplied under a particular patent.
Supply Condition
• Solution Annealed Condition
• Annealed Condition
• Quenched Condition where applicable
• Hot Rolled Condition
• Cold Rolled Condition
• Pickled and Passivated Condition
• Stress Relieved Condition where applicable
Surface Finish
• 1D Hot Rolled Finish
• 2D Cold Rolled Finish
• 2B Cold Rolled Finish
• 2E Finish
• Pickled Finish
• Passivated Finish
• Bright Finish
• Polished Finish
EN 10028-7:2016 updated the formulations for 2B and 2E surface finishes.
Standard Sizes
EN 10028-7 Stainless Steel Sheets & Plates
Thickness: 0.5 mm to 250 mm
Width: Up to 3,500 mm
Length: Up to 12,000 mm
Custom thicknesses, widths, lengths, surface finishes, edge conditions, and cut-to-size plates are available according to customer requirements.
Key Features of EN 10028-7
Stainless Steel Sheet & Plate
• Excellent corrosion resistance
• High mechanical strength
• Excellent resistance to oxidation
• Good weldability
• Excellent toughness
• Good elevated-temperature performance
• Excellent resistance to pressure and thermal stresses
• Duplex grades provide high strength and corrosion resistance
• Austenitic grades provide excellent corrosion resistance and ductility
• Suitable for demanding pressure equipment
Applications of EN 10028-7
Stainless Steel Sheet & Plate
Pressure Vessel Industry
• Stainless Steel Pressure Vessels
• Reactor Vessels
• Storage Tanks
• Process Vessels
• Pressure Equipment
Chemical Industry
• Chemical Processing Equipment
• Reactors
• Storage Tanks
• Process Vessels
• Corrosive-Service Equipment
Petrochemical Industry
• Refinery Equipment
• Heat Exchangers
• Process Equipment
• Storage Tanks
• Pressure Vessels
Power Generation Industry
• Boilers
• Heat Exchangers
• Steam Equipment
• Condensers
• Pressure Components
Oil & Gas Industry
• Processing Equipment
• Separators
• Pressure Vessels
• Offshore Equipment
• Corrosion-Resistant Components
Food & Pharmaceutical Industry
• Process Equipment
• Storage Tanks
• Pressure Vessels
• Hygienic Processing Equipment
• Heat Transfer Equipment
Fabrication and Welding
EN 10028-7 stainless steel plates provide good
fabrication and welding characteristics according to the selected grade.
• Suitable for welding
• Good forming characteristics
• Good bending performance
• Suitable for pressure vessel fabrication
• Excellent corrosion resistance after appropriate finishing
• Good dimensional stability
• Reliable welded joint performance
Welding procedures should be selected according to the specific stainless steel grade, thickness, heat input, and service requirements. EN 10028-7:2016 includes specific provisions concerning weldability.
Heat Treatment
Heat treatment depends on the stainless steel
family and selected grade.
• Solution annealing improves corrosion
resistance
• Annealing restores ductility
• Controlled cooling maintains the required microstructure
• Heat treatment provides uniform mechanical properties
• Proper processing minimizes residual stresses
• Duplex grades require controlled thermal processing to maintain phase balance
Advantages of EN 10028-7 Stainless
Steel Sheet & Plate
• Wide range of stainless steel grades
• Excellent corrosion resistance
• Available in austenitic, ferritic, martensitic and duplex grades
• Excellent pressure equipment performance
• Good weldability
• High mechanical strength
• Excellent toughness
• Good elevated-temperature performance
• Suitable for aggressive chemical environments
• Long service life
Conclusion
EN 10028-7 Stainless Steel Sheet & Plate
covers stainless steel flat products for pressure purposes, including ferritic,
martensitic, austenitic, duplex, and creep-resisting stainless steel grades.
The standard provides requirements for chemical composition, mechanical
properties, heat treatment, surface condition, testing, and pressure-equipment
applications.
Importantly, EN 10028-7:2016 identifies
specific patented steel grades, including 1.4062, 1.4162, 1.4662, 1.4420,
1.4611, 1.4613, 1.4646 and 1.4501, with patent-related information and holders
identified in the standard.
Ladhani
Metal Corporation supplies EN 10028-7 Stainless Steel Sheet & Plate in
applicable ferritic, martensitic, austenitic, duplex, and creep-resisting
grades, including X5CrNi18-10, X2CrNi18-9, X2CrNiMo17-12-2, X6CrNiTi18-10,
X6CrNiMoTi17-12-2, X2CrNiMoN22-5-3 and other EN 10028-7 grades, in various
thicknesses, widths, lengths, surface finishes, heat-treatment conditions, and
customized dimensions worldwide.
FOR REQUIREMENT OF THIS GRADE
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