1.1274 (C100S)

Classification

Country	Section	Category
Germany	Non-alloy Special Steels	Structural Pressure Vessel and Engineering Steels with C > = 0,5%

Chemical composition

Standard	Fe, %	Si, %	Mn, %	Cr, %	Ni, %	P, %	C, %	S, %	Mo, %
EN 10132-4	97.05–98.6	0.15–0.35	0.3–0.6	< 0.4	< 0.4	< 0.025	0.95–1.05	< 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	690	550	13
		0.3–3		cold rolling	1200
		0.3–3		moderate hardening	1200–2100

Твёрдость по Викерсу

Rolling	Standard	Classifiers	Value, HV
		annealing, soft	220
		cold rolling	325
		moderate hardening	370–630

Standards

Standard	Description
EN 10132-4

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)