EN10025-3 Explained: Strength, Performance, and Applications

Introduction: EN10025-3 is a European standard for hot-rolled structural steel products. It is part of the EN 10025 series of standards which specifies technical delivery conditions for flat and long products of hot rolled structural steels. EN10025-3 specifically focuses on normalized/normalized rolled weldable fine grain structural steels.

 

Here are some key aspects of the EN10025-3 specification:

 

Scope: EN10025-3 covers technical delivery conditions for normalized/normalized rolled weldable fine grain structural steels in the grades S275, S355, S420, and S460.

 

Chemical Composition: The standard specifies the chemical composition requirements for these grades of steel, including elements such as carbon, manganese, silicon, phosphorus, sulfur, niobium, vanadium, titanium, and aluminum.

 

Mechanical Properties: EN10025-3 defines the mechanical properties such as yield strength, tensile strength, elongation, and impact energy for each grade of steel at different thicknesses.

 

Heat Treatment: The steel grades covered by EN10025-3 are typically subjected to normalization or normalizing rolling to achieve the desired mechanical properties.

 

Weldability: The steels specified in EN10025-3 are designed to be weldable with standard welding methods, providing suitable precautions are taken during welding to avoid detrimental effects on the material properties.

 

Applications: EN10025-3 steels are commonly used in various structural applications such as building construction, bridges, infrastructure projects, offshore structures, and machinery where high strength combined with good weldability and toughness is required. These steels are suitable for use at ambient temperatures and in low-temperature environments.

 

Subgrade Details:

EN10025-3 specifies several sub-grades within its standard, each denoted by a letter and number combination. These sub-grades correspond to different strength levels and suitability for specific applications. Here are the main sub-grades outlined in EN10025-3:

 

S275N, S275NL: These grades are normalized/normalized rolled weldable fine grain structural steels with minimum yield strengths of 275 MPa. They are suitable for general structural engineering applications.

 

S355N, S355NL: These grades are normalized/normalized rolled weldable fine grain structural steels with minimum yield strengths of 355 MPa. They offer higher strength compared to S275 grades and are often used in building construction, bridges, and machinery.

 

S420N, S420NL: These grades are normalized/normalized rolled weldable fine grain structural steels with minimum yield strengths of 420 MPa. They offer even higher strength compared to S355 grades and are suitable for applications requiring higher load-bearing capacity, such as heavy construction equipment and structural components in large buildings.

 

S460N, S460NL: These grades are normalized/normalized rolled weldable fine grain structural steels with minimum yield strengths of 460 MPa. They provide the highest strength within the EN10025-3 standard and are used in applications where exceptionally high strength is required, such as in heavy-duty lifting equipment, offshore structures, and high-rise buildings.

 

The suffix "NL" indicates that the steel is normalized, while absence of "NL" indicates that the steel is normalized rolled. Normalization is a heat treatment process that improves the toughness and ductility of the steel, making it more suitable for welding and structural applications.

 

These sub-grades of EN10025-3 steels find uses in a variety of structural and engineering applications, including:

 

Building construction (e.g., beams, columns, and structural frames)

Bridge components (e.g., girders, decks, and support structures)

Machinery and equipment manufacturing (e.g., crane booms, chassis, and heavy-duty vehicles)

Offshore structures (e.g., platforms, jackets, and modules)

Pressure vessels and storage tanks

Mining and quarrying equipment

Transportation infrastructure (e.g., railway bridges and highway overpasses)

Overall, the selection of a specific sub-grade depends on the required strength, toughness, and weldability characteristics for the intended application.

 

Some specific end uses of EN10025-3 compliant steels include:

Structural components in buildings and bridges

Offshore platforms and structures

Crane booms and chassis

Mining equipment

Pressure vessels

Transportation vehicles such as trucks, trailers, and railway wagons

Additional Information of Suffix Used for Each Sub Grades:

Designation for a specific grade of structural steel in the EN 10025-3 standard. Let's break down the meaning of this designation:

S: Structural steel. This indicates that the steel is intended for structural applications, such as building construction, bridges, and other load-bearing structures.

275/355/420/460: Minimum yield strength of 460 MPa. This number denotes the minimum amount of stress the steel can withstand before it begins to deform plastically. In this case, S460NL has a minimum yield strength of 460 megapascals (MPa).

N: Normalized. The "N" indicates that the steel has been normalized during its production process. Normalization involves heating the steel to a specific temperature above its critical temperature, followed by air cooling. This process refines the grain structure of the steel, improving its mechanical properties, such as strength and toughness.

L: Low temperature. The "L" indicates that the steel has been tested for its impact properties at low temperatures. This ensures that the steel retains its strength and toughness even in cold environments.

 

Overall, EN10025-3 provides specifications for fine grain structural steels that offer good weldability, high strength, and toughness, making them suitable for a wide range of structural and engineering applications.

For steel plates or coils purchase enquiry, place your order below here:

 

Search tags : IS 2062, IS 2041, IS 2002, EN10025-2, EN10025-3, EN10025-4, EN10025-5, EN10025-6, EN 10207, EN 10207, EN 10028 -2, EN 10028 -3, EN 10207, EN 10028 -2, EN 10028 -3, ASTM/ASME A 387, ASTM/ASME A 515, ASTM/ASME A 516, ASTM/ASME A 517, ASTM/ASME A 517, ASTM/ASME A 517, ASTM/ASME A 517, ASTM/ASME A 517, ASTM/ASME A 537, ASTM A871, ASTM A588, ASTM A510M, SAE 1006, IS 11513, IS 1079, IS10748, IS 5986, IS 6240, EN 10120, JISG 3116, IRSM 41, IS 2062, API Line Pipe X42, API X46, AP X52, API X56, API X60, API X65, API X70, API X80, API X90, API X100, API X120, API Q1 2W, API Q1 2H, API Q1 2Y, Rochhard 400, Rockhard 450, Rockhard 500, CSA G40.21, C45, C50, C55 & C60, EN 10149-2 S315MC, EN 10149-2 S355MC, EN 10149-2 S420MC, EN 10149-2 S460MC, EN 10149-2 S500MC, EN 10149-2 S550MC, EN 10149-2 S600MC, EN 10149-2 S650MC, EN 10149-2 S650MC, EN 10149-2 S700MC, EN 10149-2 S900MC, EN 10149-2 S960MC, EN 10084 20MnCr5, ASTM A871 Grade 65 Type 4, ASTM A588 Grade A, ASTM A572 Gr42, ASTM A572 Gr50, ASTM A572 Gr55, ASTM A572 Gr60, ASTM A572 Gr65, ASTM A131 Gr A, ASTM A131 Gr B, ASTM A131 Gr D, ASTM A131 Gr E, ASTM A131 Gr CS, ASTM A131, ASTM A131 AH32, ASTM A131 DH32, ASTM A131 EH32, ASTM A131 FH32, ASTM A131 AH36, ASTM A131 DH36, ASTM A131 EH36, ASTM A131 FH36, ASTM A131 AH40, ASTM A131 DH40, ASTM A131 EH40, ASTM A131 FH40, ASME SA 283 Grade A, ASME SA 283 Grade B, ASME SA 283 Grade C, ASME SA 283 Grade D, ASTM A 285 Grade A, ASTM A 285 Grade B, ASTM A 285 Grade C, ASTM A 612, ASTM A36, 40CrMnMo7, ABS A, ABS B, ABS D, ABS E, ABS AH, ABS DH, ABS EH 32, ABS EH36, ABS EH40, LRA, LRB, LRD, LR AH, LR DH 27S, LR DH32, LR DH36, DNV A, DNV B, DNV D, DNV NV A27S, DNV NV D27S, DNV NV A32, DNV NV A36, DNV NV D32, DNV NV D36, KR A,B,D, KR AH 32, KR AH 36, IRS A, IRS B, IRS D, IRS AH 32, IRS AH 36, IRS DH 32, IRS DH 36, NKK A, NKK B, NKK D, NKK KA32, NKK KA36, NKK KD32, NKK KD36, BV A, BV B, BV D, BV A32, BV A36, BV D32, BV 36, SAE 1006, IS 11513, IS 1079, IS10748, IS 5986, IS 6240, EN 10120, JISG 3116, IRSM 41, ASTM A510M, Hot rolled steel coils, hot rolled steel plates, availability of hot rolled plates, availability of hot rolled coils, steel plates and sheets, availability of hot rolled sheets, galvanized sheets, galvanized corrugates sheets, chequered plates, chequered coils, chequered sheets, hot rolled plates, hot rolled steel plates, hot rolled steel coils, hot rolled coil, cold rolled coil, hot rolled coil price, hot rolled coil steel price, hrc prices, hr coil, hrc steel price, hot rolled plate, cold rolled steel coils, cold rolled stainless steel coils, cold rolled steel price per ton today, cold rolled carbon steel coil, cold rolled plate, cold rolled coil price, hot rolled stainless steel plate, prime hot rolled steel coils, hot rolled stainless steel coil, hrc coil, rolled steel coil, cold rolled coil steel prices, hot rolled steel plate prices, hr coil price, hr plate, sunsirs hot rolled price, cold rolled steel sheet suppliers, stainless steel hot rolled coil, cold rolled steel plate, rolled stainless steel sheet, hr coil price today, rolled steel plate, hrc price today, hot rolled mild steel plate, cold rolled steel plate, cold rolled plate steel, hot rolled steel plate, hr plate steel, cold rolled mild steel sheet, hot rolled carbon steel sheet, hot rolled steel sheet in coil, stainless steel quarto plate, pickled and oiled steel plate, cold rolled galvanized steel coil, pickled steel plate, hot steel coil, us hrc steel prices rolled plate, cold rolled stainless steel sheet in coil, hrc coil price, hot rolled plate price, hot rolled pickled and oiled steel sheet, hot rolled stainless steel sheet, hrc hot rolled coil, hrc crc steel prices, sae 1006 hot rolled coil, steel plate hot rolled, hot rolled steel plate, cold rolled steel sheet, hot rolled steel sheet, hot rolled steel plate, a36 hot rolled steel plate, coil box hot rolling, coil box in hot strip mill, coil hrc, coil rolled steel, cold rolled stainless steel plate, cold rolled steel plate price, cr and hr sheet, cru hot rolled coil, current cold rolled steel prices, eu hrc price, flat rolled steel coil, galvanized rolled coil, galvanized rolled coil price, hot coil price, hot coil steel, hot rolled alloy steel plate, hot rolled carbon steel coil, hot rolled carbon steel plate, hot rolled chequered plate, hot rolled coil hrc, hot rolled coil spot price, hot rolled coiled steel, hot rolled coils suppliers, hot rolled diamond plate, hot rolled mild steel sheet, hot rolled ms plate, hot rolled pickled coil, hot rolled plates manufacturers, hot rolled sheet and plate, hot rolled steel coil supplier, hot rolled steel in coils, hot rolled steel plate suppliers, hot rolled steel price per pound, hot rolled steel sheet and plate, hot rolled steel sheet metal, hot rolled steel sheet supplier, hot rolled tread plate, hot steel plate, hot strip coil, hr coil plate, hr coil sheet, hr coil suppliers, hr cr coils, hr pickled sheet, hr plate price, hr plates and sheets, hr sheet coil, sheet plate, hr sheet price, hr sheet price 2mm, hr slit coil, hr steel coil, hrc hot rolled coil price, hrpo coil, hrpo steel plate, hrpo steel sheet, , international hr coil prices, jsw hr coil price, jsw steel hr coil price, meps cold rolled coil, meps hot rolled coil, mild steel hot rolled coil, mild steel hot rolled sheet, ms hr sheet, ms hr sheet price, north european hot rolled coil steel, pickled and oiled plate, pickled and oiled steel sheet, pickled coil, pickled steel sheet, price hrc steel, prime hot rolled steel plate, rolled coil, rolled coil steel, rolled coil steel prices, rolled steel floor plate, sail hr coil price, stainless steel flat rolled coil, stainless steel hot rolled plate, steel checker plate hot rolled, steel coil roll, steel cold rolled coil, steel plate ungalv hot rolled, sunsirs hot rolled coil, sunsirs hrc price, tata steel hr coil, tata steel hr coil price, tata steel hr coil price today, us hot rolled coil, us hot rolled coil prices, us hot rolled steel prices, wholesale hot rolled coil