DP steel grades

DP steels for cold forming according to materials data sheets

Steel grade acc. to VDA 239-100	Steel grade acc. to DIN EN 10346	Material No.
CR250Y450T-DP*	HCT450X	1.0937
CR290Y490T-DP	HCT490X	1.0995
CR330Y590T-DP	HCT590X	1.0996
CR330Y590T-DH*
CR440Y780T-DH
CR440Y780T-DP	HCT780X*	1.0943
CR500Y780T-DP	SZT800X*	-
CR590Y980T-DP	HCT980X	1.0944
CR660Y980T-DP	HCT980X	1.0944
CR700Y980T-DP	HCT980G	1.0997

Mechanical properties

Steel grade	Yield strength R_p0.2	Tensile strength R_m	Total elongation A₈₀	Hardening exponent n₉₀	BH₂
	MPa	MPa	%		MPa
HCT450X	260 - 340	≥ 450	≥ 27	≥ 0.16	≥ 30
HCT490X	290 - 380	≥ 490	≥ 24	≥ 0.15	≥ 30
HCT590X	330 - 430	≥ 590	≥ 20	≥ 0.14	≥ 30
HCT780X	440 - 550	≥ 780	≥ 14	-	≥ 30
SZT800X	500 - 650	780 - 930	≥ 10	-	≥ 40
HCT980X	590 - 740	≥ 980	≥ 10	-	≥ 30
HCT980X	660 - 810	980 - 1130	≥ 10	-	≥ 30
HCT980G	700 - 850	≥ 980	≥ 8	-	≥ 30