Bake hardening steel | HX180BD - HX340BD

Choose your bake hardening steel here in grades HX180BD, HX220BD, HX260BD, HX300BD and HX340BD.

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Properties of bake hardening steel HX180BD - HX340BD | DIN EN 10 346

Steel type

Short designation	VDA239-100*	Surface finish	Material number
HX180BD	CR180BH	+Z,+ZF,+ZA,+ZM,+AZ,+AS	1.0914
HX220BD	CR210BH	+Z,+ZF,+ZA,+ZM,+AZ,+AS	1.0919
HX260BD	CR240BH	+Z,+ZF,+ZA,+ZM,+AZ,+AS	1.0924
HX300BD	-	+Z,+ZF,+ZA,+ZM,+AZ,+AS	1.0930
HX340BD	-	+Z,+ZF,+ZA,+ZM,+AZ,+AS	1.0945

Mechanical properties (transverse)

Short designation	Proof stress R_p0.2¹⁾ MPa	Tensile strength R_m MPa	Elongation at fracture A₈₀²⁾³⁾ %	Anisotropy r₉₀ ³⁾⁴⁾⁵⁾ min.	Strain hardening exponent n₉₀⁵⁾min.	Bake hardening index BH₂ min.
HX180BD	180-240	290-360	34	1.5	0.16	30
HX220BD	220-280	320-400	32	1.2	0.15	30
HX260BD	260-320	360-440	28	-	-	30
HX300BD	300-360	400-480	26	-	-	30
HX340BD	340-400	440-520	24	-	-	30

Chemical composition (heat analysis)

Short designation	Percentage by weight % max.
	C	Si	Mn	P	S	AI min.	Nb	Ti
HX180BD	0.06	0.50	0.70	0.060	0.025	0.015	0.09	0.12
HX220BD	0.08	0.50	0.70	0.085	0.025	0.015	0.09	0.12
HX260BD	0.10	0.50	1.00	0.10	0.030	0.010	0.09	0.12
HX300BD	0.11	0.50	0.80	0.12	0.025	0.010	0.09	0.12
HX340BD	0.11	0.50	0.80	0.12	0.025	0.010	0.09	0.12

Your product of choice: HX180BD - HX340BD

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1) Where the yield strength is defined, the respective values shall apply to the lower yield strength (R_eL).

2) Depending on the product thickness, the minimum values of elongation at fracture are reduced as follows: 0.50 mm < t < 0.70 mm (minus 2 units), 0.35 mm < t < 0.50 mm (minus 4 units), and t < 0,35 mm (minus 7 units).

3) For AS, AZ, ZF and ZM coatings, the minimum A₈₀ value is reduced by 2 units and the minimum r₉₀ value by 0.2.

4) For product thicknesses of 1.5 mm < t < 2 mm, the minimum r₉₀ value is reduced by 0.2, and for t ≥ 2 mm by 0.4.

5) Depending on the product thickness, the minimum r₉₀ value is reduced as follows: 0.50 mm < t < 0.70 mm by 0.2; 0.35 mm < t < 0.50 mm by 0.4, and t < 0.35 mm by 0.6. Also depending on the product thickness, the minimum n90 value is reduced as follows: 0.50 mm < t < 0.70 mm by 0.01; 0.35 mm < t < 0.50 mm by 0.03, and t < 0.35 mm by 0.04.

*Comparative grade, therefore minor deviations from DIN EN values possible