• Application: Transmission component
  • Application: Transmission component
  • Application: Transmission component

DIN EN 10268

High-strength low-alloy steels

BILSTEIN’s micro-alloyed steels, which are in accordance with DIN EN 10268 standards, offer minimum yield strength levels from 260 to 420 MPa with excellent cold formability at all strength levels. This grade familiy is used wherever a component requires considerably higher yield and tensile strength levels than mild or unalloyed steels can provide. Additionally, using this higher grade steel means strip thickness can be reduced, lowering the weight and cost of the final product.

Compared to the high-strength construction steels once used as standard, these low-pearlite, micro-alloyed grades have a significantly reduced carbon content and therefore can be welded almost without exception using all standard techniques.

Upon request, we can also develop grades above standards with further restricted chemical analysis, compressed mechanical properties, or low earing properties.

Applications:
Automotive seat structures, automotive transmissions, car door, hood and trunk-lid structures, furniture hinges, window fittings, etc.

Overview
Chemical properties
Mechanical properties
Short name Material number Thickness
in mma
Width
in mma
Thickness
in incha
Width
in incha
Coil Spoola Bara MA MBa MC RNa RL RMa RRa
HC260LA 1.0480 0.2 - 9 5 - 650 0.008 - 0.351 0.195 - 25.35
HC300LA 1.0489 0.2 - 9 5 - 650 0.008 - 0.351 0.195 - 25.35
HC340LA 1.0548 0.2 - 9 5 - 650 0.008 - 0.351 0.195 - 25.35
HC380LA 1.0550 0.2 - 9 5 - 650 0.008 - 0.351 0.195 - 25.35
HC420LA 1.0556 0.2 - 9 5 - 650 0.008 - 0.351 0.195 - 25.35
a = measured at the cross section
Mass-share in %
Short name Material number C Si Mn P max S max Al NB max Ti max V
HC260LA 1.0480 0.10 0.50 0.60 0.025 0.025 0.015 0.090
HC300LA 1.0489 0.10 0.50 1.00 0.025 0.025 0.015 0.090 0.150 0.220
HC340LA 1.0548 0.10 0.50 1.10 0.025 0.025 0.015 0.090 0.150 0.220
HC380LA 1.0550 0.10 0.50 1.60 0.025 0.025 0.015 0.090 0.150 0.220
HC420LA 1.0556 0.10 0.50 1.60 0.025 0.025 0.015 0.090 0.150 0.220
Short name Material number Condition Rp 0,2 MPa max Rm MPa A80% min
HC260LA 1.0480 Querprüfung 260 - 320 360 - 440 29
Längsprüfung 240 - 310 340 - 420 27
HC300LA 1.0489 Querprüfung 300 - 380 380 - 480 23
Längsprüfung 280 - 360 370 - 470 24
HC340LA 1.0548 Querprüfung 340 - 420 410 - 510 21
Längsprüfung 320 - 410 400 - 500 22
HC380LA 1.0550 Querprüfung 380 - 480 440 - 560 19
Längsprüfung 360 - 460 430 - 550 20
HC420LA 1.0556 Querprüfung 420 - 520 470 - 590 17
Längsprüfung 400 - 500 460 - 580 18