Master critical forming with xpand®

The development of new light-weight construction solutions in automobile manufacturing calls for the manufacture of increasingly complex component geometries. In order to guarantee a high level of process reliability, also during critical forming steps, Salzgitter Flachstahl has enhanced its multiphase steels. This new multiphase steel generation has the term xpand® added to its name.
The term xpand® is based on the Latin word expandere (=extend, expand) and stands for a guaranteed, increased capacity for hole expansion in the steel.
The xpand® steels' forming characteristics are optimized by the higher hole expansion ratio and enable the manufacture of more complex component geometries. Due to the fact that xpand® steels exhibit reduced susceptibility to edge cracks, it is possible to lower the outage risk in spite of thinner sheet thicknesses. This guarantees customers a reliable adjustment of the manufacturing processes - also in connection with critical forming processes.
Now, with xpand® Salzgitter Flachstahl ranks as the only producer to guarantee higher hole expansion ratios up to 75% and extra low susceptibility to edge cracks:
Steel grade | VDA designation | Thickness in mm | Width in mm | Yield strength in MPa (longitudinal) | Tensile strength in MPa (longitudinal) | Guaranteed hole Expansion ratio |
SZBS600xpand® | - | 2.00 - 6.00 | 900 - 1,500 | 480 - 5801 | 590 - 6701 | 75 % |
SZBS800xpand®40 | - | 1.80 - 8.00 | 900 - 1,500 | ≥6801 | 800 - 9801 | 40 % |
SZBS800xpand®50 | - | 1.80 - 8.00 | 900 - 1,500 | ≥6801 | 800 - 9801 | 40 % |
HCT600Xxpand®+Z | CR330Y590T-DP | 0.50 - 3.00 | 900 - 1,750 | 340 - 420 | 600 - 700 | 50 % |
HCT780Xxpand®+Z | CR440Y780T-DP | 0.70 - 2.50 | 900 - 1,800 | 440 - 550 | 780 - 900 | 30% |
HCT780Cxpand®+Z | CR570Y780T-CP | 0.70 - 2.00 | 900 - 1,800 | 500 - 700 | ≥780 | 40 % |
HCT980Xxpand®+Z | CR590Y980T-DP | 1.00 - 2.00 | 900 - 1,350 | 600 - 750 | 980 - 1,130 | 20 % |
CR650Y980T-DP | 1.00 - 2.00 | 900 - 1,350 | 660 - 810 | 980 - 1,130 | 20 % | |
HCT980XGxpand® | CR700Y980T-DP | 1.00 - 2.00 | 900 - 1,350 | 700 - 850 | 980 - 1,130 | 20 % |