Bake hardening steel | HC180B - HC300B

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

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Properties according to DIN EN 10 268

Steel type

Short designation	VDA239-100*	Material number
HC180B	CR180BH	1.0395
HC220B	CR210BH	1.0396
HC260B	CR240BH	1.0400
HC300B	-	1.0444

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

Mechanical properties, transverse

Short designation	Proof stress R_p0,2¹⁾MPa	Tensile strength R_m MPa	Elongation at fracture A_80²⁾ % min.	Anisotropy r_{90³⁾⁴⁾} min.	Strain hardening exponent n_90³⁾ min.	Bake hardening index BH_2⁵⁾ min.
HC180B	180-230	290-360	34	1.6	0.17	35
HC220B	220-270	320-400	32	1.5	0.16	35
HC260B	260-320	360-440	29	-	-	35
HC300B	300-360	390-480	26	-	-	35

Chemical composition, heat analysis

Short designation	Percentage by weight % max.
	C	Si	Mn	P	S	Al min.	Ti⁶⁾	Nb⁶⁾
HC180B	0.06	0.5	0.7	0.06	0.030	0.015	-	-
HC220B	0.08	0.5	0.7	0.085	0.030	0.015	-	-
HC260B	0.1	0.5	1.0	0.1	0.030	0.015	-	-
HC300B	0.1	0.5	1.0	0.12	0.030	0.015	-	-

Your product of choice: HC180B - HC300B

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1) Where no yield strength is defined, the respective values shall apply to the lower yield strength (R_el).

2) For thicknesses ≤ 0.7 mm but > 0.5 mm, the minimum elongation at fracture may be 2 units lower. For thicknesses ≤ 0.5 mm, the minimum elongation at fracture may be 4 units lower.

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

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

5) For thicknesses > 1.2 mm, special arrangements are required.

6) Additions of vanadium and boron are also permissible. The total content of all four elements must not exceed 0.22 %.