What is the maximum allowable stress value for S890QL？

What is the maximum allowable stress value for S890QL?

For S890QL steel, the minimum yield strength (ReH) is 890 MPa for thicknesses up to 50mm, decreasing to 830 MPa for thicknesses from 50mm to 100mm, and the tensile strength (Rm) is typically 940-1100 MPa, but the maximum allowable stress (S) depends heavily on the specific design code (e.g., Eurocode, ASME) and application, often calculated as a fraction (like 0.66 or 0.85) of the yield strength, so there isn't a single universal maximum value; it's a calculated design parameter.

The key benefit of S890QL Steel Plates is that enables a significant amount of weight to be saved in the structure which means reduced fabrication costs.  The yield strength is 890 MPa for the thinner plates, reducing as the plates get thicker. S890QL Plates offer exceptional strength-to-weight ratio which helps to build bridges and sea-links, dependable for load-bearing. Their solid bodies bear heavy trucks and cars atop the bridge. Trailers, agricultural, mining and earth moving equipment, etc.

S890QL steel plates are known for their high strength and durability, achieved through a quenching and tempering process. These plates offer a good balance of toughness and weldability, making them a popular choice in sectors that demand strong, reliable materials-such as construction, heavy equipment, and transport engineering

The name "S890QL" breaks down as follows:
● S refers to structural steel
● 890 stands for a minimum yield strength of 890 MPa
● Q indicates the steel has been quenched and tempered
● L shows that it meets impact toughness standards at -40°C

This combination of properties makes S890QL a trusted option where both strength and performance under extreme conditions are required.

These EN 10025 S890QL Steel Plate are also known as High Strength Quenched and Tempered Steel Plate, High Yield Quenched and Tempered Steel Plate, High Strength Low Alloy Steel Plate, High Strength Structural Steel Plate, High Yield Structural Steel Plate, HSLA, etc. S890QL Steel Plate is used in applications such as cranes (mobile and loader), aerial platforms, and load handling equipment, bridges, and special containers. These S890QL Plates are available in different shape size and thickness according to the needs of our customers and also available in customized specifications at affordable prices.

What is the composition of S890QL?

S890QL is a high-strength, quenched, and tempered structural steel (EN 10025-6) with a minimum yield strength of 890 MPa, characterized by controlled chemical composition, including low carbon (max 0.20%), manganese (max 1.70%), silicon (max 0.80%), and specific amounts of alloying elements like chromium, molybdenum, nickel, niobium, titanium, vanadium, and boron for enhanced strength, toughness, and weldability, designed for demanding applications requiring high load-bearing capacity and good impact resistance at low temperatures (down to -40°C).

What temperature is S890QL ?

S890QL is a high-strength structural steel known for its performance at low temperatures, specifically requiring a minimum impact energy of 30 Joules at -40°C (-40°F), making it suitable for very cold environments, though its working temperature range extends across various conditions, requiring preheating (150-250°C) during welding to prevent cracking.

What is the hardness of S890QL ?

S890QL is a high-strength structural steel with a minimum yield strength of 890 MPa, not a specific hardness number in Rockwell C, but its quenched and tempered (QL) condition gives it excellent hardness, toughness, and weldability for demanding applications like cranes, mining, and heavy equipment, with hardness typically measured for comparison rather than as a primary specification like yield strength.

Chemical Composition of S890QL

Mechanical Properties of S890QL

V Notch Impact Testing

1What is S890QL equivalent to?

S890QL is a European high-strength structural steel (EN 10025-6) with a minimum yield strength of 890 MPa, often equivalent to German TStE890V, Chinese Q890, and various trade names like SSAB's Strenx® 900 E, DILLIMAX 890T, or Amstrong® Ultra 890QL, used where high strength, weldability, and toughness are needed, with counterparts in standards like ASTM A514 (though not a direct match).

2What are the typical application fields of S890QL ?

S890QL is a high-strength, quenched, and tempered structural steel used in demanding, load-bearing applications like heavy machinery (cranes, earthmoving), transport (truck frames, rail cars, trailers, vehicles), construction (bridges, high-rise buildings), and offshore/energy (oil & gas, wind turbines, offshore structures) due to its excellent strength-to-weight ratio, toughness, and weldability, allowing for lighter, stronger designs.

3What is the maximum allowable stress value for S890QL ?

The maximum allowable stress for S890QL isn't a single number but depends on thickness and design code, typically derived from its minimum yield strength (890 MPa for thinner plates, 830 MPa for thicker) by applying safety factors, often around 0.85 or lower for tensile stress in structural design, meaning actual allowable tensile stress could be around 750-800 MPa (for thinner sections), but verify with specific code (like EN 1993) for precise design.

4What is the P number of S890QL ?

S890QL (Material No. 1.8983) is a high-strength quenched and tempered structural steel, but it doesn't have a standard P-Number (ASME grouping) assigned in common tables, as P-Numbers typically cover established pressure vessel steels (like P1-P91), while S890QL is a specific EN standard structural grade, often grouped under P-Group 1 (Carbon & Low Alloy Steels) or assigned to a specific P-Number like P36 or P37 in welding codes for similar high-strength Q&T steels, though confirmation with ASME Section IX or a supplier is best for welding procedures.

5Is S890QL carbon steel?

Yes, S890QL is a type of high-strength low-alloy (HSLA) structural steel, often referred to as a carbon steel in general classifications, but more accurately a specific grade (EN 10025-6) with controlled alloying elements (like Cr, Ni, Mo) to achieve high yield strength (890 MPa) and good toughness after quenching and tempering (Q) at low temperatures (L, -40°C). While it contains carbon, its properties come from careful alloying and heat treatment, making it more advanced than basic carbon steel.

6What is the maximum allowable stress value for S890QL ?

For S890QL steel, the minimum yield strength (ReH) is 890 MPa for thicknesses up to 50mm, decreasing to 830 MPa for thicknesses from 50mm to 100mm, and the tensile strength (Rm) is typically 940-1100 MPa, but the maximum allowable stress (S) depends heavily on the specific design code (e.g., Eurocode, ASME) and application, often calculated as a fraction (like 0.66 or 0.85) of the yield strength, so there isn't a single universal maximum value; it's a calculated design parameter.

7Is S890QL high speed steel? S890QL isn't High-Speed Steel (HSS) for cutting tools, but rather an Extra High Strength, Quenched & Tempered Structural Steel (EN 10025-6 standard) known for its massive strength (890 MPa yield), toughness, excellent weldability, and suitability for heavy-duty construction, heavy machinery, cranes, and mining equipment where lighter, stronger designs are needed. The code breaks down as: S (Structural), 890 (890 MPa yield strength), Q (Quenched & Tempered), and L (Low-temperature notch toughness, -40°C).

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If you want to learn more about S890QL GNEE's products, you can send an email to info@gneesteels.com . We are more than happy to assist you.