Isotropic steel | HC220I - HC300I

Choose your isotropic steel here in grades HC220I, HC260I and HC300I.

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Properties according to DIN EN 10 268

Steel type

Short designation	VDA239-100*	Material number
HC220I	-	1.0346
HC260I	-	1.0349
HC300I	-	1.0447

Mechanical properties, transverse

Short designation	Proof stress Rp_0.2¹⁾ MPa	Tensile strength R_mMPa	Elongation at fracture A_80²⁾ % min.	Anisotropy r_{90³⁾⁴⁾} max.	Strain hardening exponent n_90³⁾ min.	Bake hardening index BH₂⁵⁾ min.
HC220I	220-270	300-380	34	1.4	0.18	-
HC260I	260-310	320-400	32	1.4	0.17	-
HC300I	300-350	340-440	30	1.4	0.16	-

Chemical composition, heat analysis

Short designation	percentage by weight % max.
	C	Si	Mn	P	S	Al min.	Ti⁶⁾	Nb⁶⁾
HC220l	0.07	0.5	0.6	0.05	0.025	0.015	0.05	-
HC260l	0.07	0.5	1.2	0.05	0.025	0.015	0.05	-
HC300l	0.08	0.5	0.7	0.08	0.025	0.015	0.05	-

Your product of choice: HC220I - HC300I

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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 %.