Electrolytically zinc-coated sheet tk accelis

Bake hardening steel | HC180B+ZE - HC300B+ZE

Choose your bake hardening steel here in grades HC180B+ZE, HC220B+ZE, HC260B+ZE and HC300B+ZE.

The experts at our locations are happy to advise you. We look forward to hearing from you.

Bake hardening steel

Short name	VDA239-100*	Surface finish	Material number	Tensile strength R _p0,2¹⁾MPa	Tensile strength R_mMPa	Elongation at break A₈₀²⁾% min.	Anisotropy r₉₀³⁾⁴⁾	Solidification exponent n₉₀³⁾min.	Bake hardening index BH₂⁵⁾ min.
HC180B	CR180BH	+ZE	1.0395	180-230	290-360	34	1.6	0.17	35
HC220B	CR210BH	+ZE	1.0396	220-270	320-400	32	1.5	0.16	35
HC260B	CR240BH	+ZE	1.0400	260-320	360-440	29	-	-	35
HC300B	-	+ZE	1.0444	300-360	390-480	26	-	-	35

Chemical composition, melt analysis

Isotropic steel

Short name	VDA239-100*	Material number	Mass fractions & max.
			C	Si	Mn	P	S	AI min.	Ti⁶⁾	Nb⁶⁾
HC180B	CR180BH	1.0395	0,06	0.5	0,7	0,06	0,030	0,015	–	–
HC220B	CR210BH	1.0396	0,08	0.5	0,7	0,085	0,030	0,015	–	–
HC260B	CR240BH	1.0400	0,1	0.5	1,0	0,1	0,030	0,015	–	–
HC300B	–	1.0444	0,1	0,5	1,0	0,12	0,030	0,015	–	–

1) If a pronounced yield point occurs, the values for the lower yield point (ReL) apply

2) For thicknesses ≤ 0.7 mm, but > 0.5 mm, minimum values for elongation at break that are 2 units lower are permissible. For thicknesses ≤ 0.5 mm, minimum values 4 units lower are permissible.

3) The minimum values for r90 and n90 only apply to product thicknesses ≥ 0.5 mm.

4) For product thicknesses > 2 mm, the r90 value is reduced by 0.2.

5) Special agreements must be made for thicknesses > 1.2 mm.

6) Vanadium and boron may also be added. The sum of the mass fractions of all four elements must not exceed 0.22%.

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