CR500LA-GI and CR550LA-GI: New members of the hot-dip galvanized microalloyed steel family

At Salzgitter Flachstahl the family of microalloyed steels has gained a further new addition!
With immediate effect, we are offering the CR500LA-GI and CR550LA-GI steels in a hot-dip galvanized version, thereby extending the range of microalloyed steels beyond VDA 239-100.

Steel grade	Yield strength R_p0,2 (longitudinal direction)	Tensile strength R_m (longitudinal direction)	Elongation at break A₈₀ (längs)
	MPa	MPa	%
CR210LA	210 - 300	310 - 410	≥ 29
CR240LA	240 - 320	320 - 430	≥ 27
CR270LA	270 - 350	350 - 460	≥ 25
CR300LA	300 - 380	380 - 490	≥ 23
CR340LA	340 - 420	410 - 530	≥ 21
CR380LA	380 - 470	450 - 570	≥ 19
CR420LA	420 - 520	480 - 600	≥ 17
CR460LA	460 - 580	520 - 680	≥ 15
CR500LA*	500 - 620	560 - 700	≥ 14
CR550LA*	550 - 670	610 - 750	≥ 12

Thanks to the fine grading of strengths, you, as a designer or material planner, have the option of selecting exactly the ideal material for each and every new component.

Catering to existing components made of microalloyed steels with lower yield strengths (e.g. CR460LA), the CR500LA and CR550LA grades offer corresponding lightweight potentials by way of reducing plate thickness. This results in savings in terms of material and costs, while boosting resource efficiency.

Potential use cases of these steels are primarily in the structural area of the automobile body, such as side members, cross members and reinforcing parts, while applications in the seating area are also conceivable.

Photo of a front side member — Front side member

The grades are available in a thickness range from 1.2 mm to 2.0 mm as hot-dip galvanized cold-rolled strip. In both cases, the currently available widths range from 1000 mm to 1500 mm. Additional dimensions can be agreed upon after consultation.

Are you interested in these grades? Your contacts at our Sales and Technical Customer Service will be pleased to answer your questions.