1.7219 (26CrMo4)

Classification

Country	Section	Category
Country	Section	Category
Germany	Structural, Pressure Vessel and Engineering Steels	Cr-Mo with Mo < 0.35%, Cr-Mo-B

Chemical composition

Standard	Fe, %	Si, %	Mn, %	Cr, %	Cu, %	P, %	C, %	S, %	Mo, %
Standard	Fe, %	Si, %	Mn, %	Cr, %	Cu, %	P, %	C, %	S, %	Mo, %
EN 10216-4	96.725–98.23	< 0.35	0.5–0.8	0.9–1.2	< 0.3	< 0.025	0.22–0.29	< 0.01	0.15–0.3

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Mechanical properties at 20 °C

Rolling	Standard	Size, mm	Tension	Classifiers	$$\sigma _{U}$$, $$MPa$$	$$\sigma_{0.2}$$, $$MPa$$	$$\epsilon_L$$, %	$$\epsilon_T$$, %	$$KV_{L}$$, $$J$$	$$KV_{T}$$, $$J$$	Treatment
Rolling	Standard	Size, mm	Tension	Classifiers	$$\sigma _{U}$$, $$MPa$$	$$\sigma_{0.2}$$, $$MPa$$	$$\epsilon_L$$, %	$$\epsilon_T$$, %	$$KV_{L}$$, $$J$$	$$KV_{T}$$, $$J$$	Treatment
				moderate hardening	560–740	440	18	16	40	27

Standards

Standard	Description
Standard	Description
EN 10216-4

Description of chemical elements

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

Description of mechanical properties

Parameter	Units of measurement	Description
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
$$\epsilon_L$$	%	Elongation at break (longitudinal)
$$\epsilon_T$$	%	Elongation at break (transverse)
$$KV_{L}$$	$$J$$	Impact energy (longitudinal)
$$KV_{T}$$	$$J$$	Impact energy (transverse)