2.4878 (NiCr25Co20TiMo)

Classification

Country	Section	Category
Country	Section	Category
Germany	Alloy DIN 17007−4	Ni Alloys with Co, Cr and Mo Co Alloys with Cr, Ni and Mo

Chemical composition

Standard	Fe, %	Si, %	B, %	Mn, %	Co, %	Cr, %	Ti, %	Cu, %	Ni, %	Zr, %	Al, %	P, %	C, %	S, %	Mo, %	Ta, %
Standard	Fe, %	Si, %	B, %	Mn, %	Co, %	Cr, %	Ti, %	Cu, %	Ni, %	Zr, %	Al, %	P, %	C, %	S, %	Mo, %	Ta, %
EN 10302	< 1	< 0.5	0.01–0.015	< 0.5	19–21	23–25	2.8–3.2	< 0.2	44.778–52.93	0.03–0.07	1.2–1.6	< 0.01	0.03–0.07	< 0.007	1–2	< 0.05

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Mechanical properties at 20 °C

Rolling	Standard	Size, mm	Tension	Classifiers	$\sigma _{U}$ , $MPa$	$\sigma_{0.2}$ , $MPa$	$\epsilon_L$ , %	Treatment
Rolling	Standard	Size, mm	Tension	Classifiers	$\sigma _{U}$ , $MPa$	$\sigma_{0.2}$ , $MPa$	$\epsilon_L$ , %	Treatment
				aging	1080	650	15	Heat treatment at 1080 ° C
				aging	1100	700	12	Heat treatment at 1100 ° C

Standards

Standard	Description
Standard	Description
EN 10302

Description of chemical elements

Element	Units of measurement	Description
Element	Units of measurement	Description
Fe	%	Iron
Si	%	Silicon
B	%	Bor
Mn	%	Manganese
Co	%	Cobalt
Cr	%	Chrome
Ti	%	Titan
Cu	%	Copper
Ni	%	Nickel
Zr	%	Zirconium
Al	%	Aluminium
P	%	Phosphorus
C	%	Carbon
S	%	Sulfur
Mo	%	Molybdenum
Ta	%	Tantalum

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)