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1.4875, DIN X55CrMnNiN20-8, SAE EV12

1.4875, DIN X55CrMnNiN20-8, SAE EV12 standard Download, We provide the main countries around the ISO standard download, including: AISI(US),UNS(US),SAE(US),ASTM(US),AMS(US),ASME(US),MIL(US),FED(US),DIN(DEU),JIS(JPN),AFNOR(FR),B.S.(UK),SS(SWE),UNI(ITA).

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Click on the download 1.4875, DIN X55CrMnNiN20-8, SAE EV12 standard

1.4875, DIN X55Cr MnNiN20-8, SAE EV12

Designation by Standards

Brand Name	LH No.	Mat. No.	DIN	EN	AISI
212N	952	1.4875	X55Cr MnNiN20-8	-	SAE EV12

Chemical Composition (in weight %)

C	Si	Mn	Cr	Mo	Ni	V	W	Others
0.55	max. 0.25	8.50	20.35	max. 0.50	2.13	-	-	-

Description
A nitrogen-strengthened, austenitic valve steel.

Applications
Has been used extensively for automotive valve applications.

Physical properties (avarage values) at ambient temperature
Modulus of elasticity [10³ x N/mm²]: 215
Density [g/cm³]: 7.7
Thermal conductivity [W/m.K]: 14.5
Electric resistivity [Ohm mm²/m]: 0.79
Specific heat capacity[J/g.K]: 0.50

Coefficient of Linear Thermal Expansion 10^-6 ^oC^-1

20-100^oC	20-300^oC	20-500^oC	20-700^oC
14.5	16.7	17.8	18.4

Hardening
Harden from a temperature of 1180-1140^oC followed by water quenching.

Tempering
Tempering temperature: 730-780^oC, air.

Mechanical properties at ambient temperature
Condition: Precipitation hardened
Hardness: 28 HRC
0.2 % proof stress: 550 N/mm²
Tensile strength: 900-1150 N/mm²
Elongation: 8 %
Reduction: 10 %

Tensile Strength (N/mm²) vs. Temperature (^oC)

500^oC	550^oC	600^oC	650^oC	700^oC	750^oC	800^oC
640	590	540	490	440	360	290

0.2 % proof stress (N/mm² vs. Temperature (^oC)

500^oC	550^oC	600^oC	650^oC	700^oC	750^oC	800^oC
300	280	250	230	220	200	170

Forging
Hot forming temperature: 1100-950^oC.

Machinability
The machining properties of this steel are comparable to the standard 18-8 stainless steels, such as types 302, 304, etc.

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1.4875, DIN X55CrMnNiN20-8, SAE EV12

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1.4875, DIN X55CrMnNiN20-8, SAE EV12

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