Materials database

Highest-strength normalized fine-grain structural steel in EN 10025-3. YS 460 MPa with guaranteed weldability and impact toughness. Used for heavy crane structures, offshore platforms, bridges, and any high-load structure where normalized delivery is required.

High-strength normalized fine-grain structural steel with 460 MPa yield and impact testing at -50°C. The highest-strength grade in the EN 10025-3 normalized series. Used for offshore platforms, wind turbine towers, arctic bridges, cranes, and heavy steel structures in cold climates.

Quenched and tempered fine-grained structural steel with minimum yield strength 460 MPa. Q designation indicates impact testing at room temperature. Entry-level grade of the EN 10025-6 QT steels. Used for bridges, cranes, structural hollow sections, and general heavy construction where higher strength than S355 is needed with good weldability.

Quenched and tempered fine-grained structural steel with minimum yield strength 460 MPa and guaranteed impact toughness at -40°C (QL designation). Same strength as S460Q but with improved low-temperature properties through tighter P and S control. Used for bridges, offshore structures, and crane booms operating in cold climates.

Quenched and tempered fine-grained structural steel with minimum yield strength 460 MPa and guaranteed impact toughness at -60°C (QL1 designation). The most demanding low-temperature variant of the S460 series, with the strictest P and S limits for maximum toughness. Used for arctic offshore structures, cryogenic applications, safety-critical structural components in extreme cold environments, and bridge construction in polar regions.

High-strength low-alloy (HSLA) hot-rolled steel for cold forming. Thermomechanically rolled for fine grain structure. 500 MPa yield strength with excellent cold formability. Used for automotive chassis, truck frames, crane booms, and agricultural equipment.

Quenched and tempered fine-grained structural steel with minimum yield strength 500 MPa. Q designation indicates impact testing at room temperature. Combines good weldability with significantly higher strength than conventional S355 grades. Used for hydraulic supports, construction machinery, crane components, heavy vehicles, and mining equipment where weight reduction is beneficial.

Quenched and tempered fine-grained structural steel with minimum yield strength 500 MPa and guaranteed impact toughness at -40°C (QL designation). Tighter P and S control than S500Q for improved low-temperature performance. Used for construction and mining machinery, crane booms, heavy vehicle chassis, and structural components in cold climate applications.

High yield strength thermomechanically rolled steel for cold forming with minimum yield strength 550 MPa. The highest alloy quality grade in EN 10149-2 (grades above 550 are alloy special steels). Fine-grained microstructure provides excellent cold bending, folding, and flanging properties. Used for automotive chassis components, crane booms, trailer frames, agricultural machinery, and structural cold-formed sections.

Quenched and tempered fine-grained structural steel with minimum yield strength 550 MPa. Q designation indicates impact testing at room temperature. Intermediate strength grade between S500 and S620 in the EN 10025-6 series. Used for hydraulic supports, construction machinery, crane components, and heavy vehicle chassis where higher strength than S500 is needed.

Quenched and tempered fine-grained structural steel with minimum yield strength 550 MPa and guaranteed impact toughness at -40°C (QL designation). Tighter P and S limits than S550Q for improved low-temperature performance. Used for construction and mining machinery, crane booms, and heavy structural components in cold climate applications.

High yield strength alloy special steel for cold forming with minimum yield strength 600 MPa. Thermomechanically rolled. Classified as alloy special steel per EN 10020 (unlike S550MC and below which are alloy quality steels). Used for demanding automotive structural components, heavy-duty trailer and truck chassis, crane and lifting equipment, and mining machinery where high strength with cold formability is critical.

Quenched and tempered fine-grained structural steel with minimum yield strength 620 MPa. Q designation indicates impact testing at room temperature. High-performance grade bridging the gap between S550 and S690. Used for heavy-duty crane booms, mining equipment, structural components requiring weight optimization, and safety-critical applications.

Quenched and tempered fine-grained structural steel with minimum yield strength 620 MPa and guaranteed impact toughness at -40°C (QL designation). Tighter impurity control for low-temperature service. Used for crane booms in cold climates, offshore lifting equipment, and structural applications requiring both high strength and sub-zero toughness.

High yield strength alloy special steel for cold forming with minimum yield strength 650 MPa. Thermomechanically rolled. Bridges the gap between S600MC and S700MC in the EN 10149-2 series. Used for weight-optimized automotive and commercial vehicle components, heavy-duty chassis, and structural members requiring excellent cold formability at very high strength levels.

High-strength quenched and tempered structural steel — YS 690 MPa min. Part of EN 10025-6 series (S500Q to S960Q). Good weldability despite high strength (CEV controlled). Used for mobile cranes, mining equipment, truck chassis, bridge components, and any structure where weight reduction through higher strength is critical. "Q" = quenched, "L" variants add low-temp impact.

High-strength quenched and tempered fine-grain structural steel with minimum yield strength of 690 MPa. Used for heavily loaded structures like mobile cranes, mining equipment, bridges, and pressure vessels.

High-strength quenched and tempered fine-grained structural steel with minimum yield strength 690 MPa and guaranteed impact toughness at -60°C (QL1 designation). The most demanding low-temperature variant of the S690 series. Used for arctic offshore structures, mobile cranes operating in extreme cold, heavy lifting equipment, and safety-critical structural applications requiring both high strength and exceptional low-temperature toughness.

Shock-resistant tool steel with excellent toughness at high hardness. Air or oil hardening. Used for chisels, shear blades, punches, rivet sets, and any tooling subjected to heavy impact loading. The primary S-type tool steel in AISI classification.

The highest-strength grade in the EN 10149-2 HSLA series. 700 MPa yield with good cold formability. TMCP for ultra-fine grain structure. Used for telescopic cranes, truck frame rails, dirt-moving equipment, farm equipment, and any application requiring maximum weight reduction in cold-formed steel.

Ultra-high-strength quenched and tempered fine-grained structural steel with minimum yield strength 890 MPa. Q designation indicates impact testing at room temperature. Just below S960 in the EN 10025-6 hierarchy. Used for mobile cranes, aerial work platforms, mining equipment, and heavy transport vehicles where maximum weight reduction is desired without the extreme welding precautions of S960.

Ultra-high-strength quenched and tempered fine-grained structural steel with minimum yield strength 890 MPa and guaranteed impact toughness at -40°C. One of the highest strength grades in EN 10025-6, just below S960. Used for mobile cranes, aerial work platforms, heavy transport vehicles, mining machinery, and offshore lifting equipment where maximum weight reduction is critical. Weldable with careful parameter control.

Ultra-high-strength alloy special steel for cold forming with minimum yield strength 960 MPa. The highest strength grade in EN 10149-2. Thermomechanically rolled delivery. Must not be heated above 400°C to preserve mechanical properties. Extraordinary strength-to-weight ratio for cold-formed components. Used in the most demanding automotive, crane, mining, and military vehicle applications where every kilogram counts.

Ultra-high-strength quenched structural steel — YS 960 MPa min. Near the top of EN 10025-6 range. Approaches tool-steel-level strength while remaining weldable (with strict preheat/interpass control). Used for the most weight-critical structural applications: mobile crane booms, mining equipment, military vehicles, and specialty trailer chassis. Significantly reduces section thickness vs S355.