1.2002 (125Cr2)

Classification

Country	Section	Category
Germany	Alloy Tool Steels	Cr

Chemical composition

Standard	Fe, %	Si, %	Mn, %	Cr, %	Ni, %	P, %	C, %	S, %	Mo, %
	96.8–98	0.15–0.35	0.25–0.4	0.4–0.6	< 0.4	< 0.025	1.2–1.3	< 0.025	< 0.1

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Mechanical properties at 20 °C

Rolling	Standard	Size, mm	Tension	Classifiers	$$\sigma _{U}$$, $$MPa$$	$$\sigma_{0.2}$$, $$MPa$$	$$\epsilon_{L (L_0 = 80 mm)}$$, %	Treatment
		0.3–3		annealing, soft	750	590	11
		0.3–3		moderate hardening	1300–2100

Твёрдость по Викерсу

Rolling	Standard	Classifiers	Value, HV
		annealing, soft	235
		moderate hardening	405–630

Description of chemical elements

Element	Units of measurement	Description
Fe	%	Iron
Si	%	Silicon
Mn	%	Manganese
Cr	%	Chrome
Ni	%	Nickel
P	%	Phosphorus
C	%	Carbon
S	%	Sulfur
Mo	%	Molybdenum

Description of mechanical properties

Parameter	Units of measurement	Description
$$\sigma_{0.2}$$	$$MPa$$	Tensile stress required to produce a total elongation of 0.2%
$$\sigma _{U}$$	$$MPa$$	Ultimate tensile strength
$$\epsilon_{L (L_0 = 80 mm)}$$	%	Elongation at break (longitudinal) (for L₀ = 80 mm)