HC300LA | 1.0489

Grade HC300LA belongs to the cold-rolled micro-alloyed steels and has a 0.2% yield strength of around 300 MPa.

Micro-alloyed steel

Properties according to DIN EN 10 268

Steel type

Short designation	VDA239-100	Material number
HC300LA	CR270LA	1.0489

HC300LA | 1.0489: Mechanical properties (transverse)

Proof stress Rp 0.2 ¹⁾MPa	Tensile strength Rm MPa	Elongation at fracture A ²⁾ % 80 min.
300–380	380–480	23

HC300LA | 1.0489: Chemical composition (heat analysis)

Percentage by weight % max.
C	Si	Mn	P	S	Al min.	Ti⁶⁾	Nb ⁶⁾
0.12	0.5	1.4	0.03	0.025	0.015	0.15	0.09

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

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 % .