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1.4871, DIN X53CrMnNiN21-9, SAE EV8
1.4871, DIN X53CrMnNiN21-9, SAE EV8 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).
Production specification
Round bar standard Download
Square-shape steel standard Download
Plate steel standard Download
Billet standard Download
Flat bar standard Download
wire standard Download
tube standard Download
pipe standard Download
Forging standard Download
casting standard Download
sheet standard Download
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coil standard Download
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Square-shape steel standard Download
Plate steel standard Download
Billet standard Download
Flat bar standard Download
wire standard Download
tube standard Download
pipe standard Download
Forging standard Download
casting standard Download
sheet standard Download
round bar standard Download
coil standard Download
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1.4871, DIN X53CrMnNiN21-9, SAE EV8
Designation by Standards
| Brand Name | LH No. | Mat. No. | DIN | EN | AISI |
| 214N | 953 | 1.4871 | X53CrMnNiN21-9 | X53CrMnNiN219 | SAE EV8 |
Chemical Composition (in weight %)
| C | Si | Mn | Cr | Mo | Ni | V | W | Others |
| 0.53 | max. 0.25 | 9.00 | 21.00 | - | 3.88 | - | - | - |
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
| 20-100oC | 20-300oC | 20-500oC | 20-700oC |
| 14.5 | 16.7 | 17.8 | 18.4 |
Hardening
Harden from a temperature of 1180-1140oC followed by water quenching.
Tempering
Tempering temperature: 730-780oC, air.
Mechanical properties at ambient temperature
Condition: Precipitation hardened
Hardness: 32 HRC
0.2 % proof stress: 580 N/mm2
Tensile strength: 950-1200 N/mm2
Elongation: 8 %
Reduction: 10 %
Tensile Strength (N/mm2) vs. Temperature (oC)
| 500oC | 550oC | 600oC | 650oC | 700oC | 750oC | 800oC |
| 650 | 600 | 550 | 500 | 450 | 370 | 300 |
0.2 % proof stress (N/mm2) vs. Temperature (oC)
| 500oC | 550oC | 600oC | 650oC | 700oC | 750oC | 800oC |
| 350 | 330 | 300 | 270 | 250 | 230 | 200 |
Forging
Hot forming temperature: 1100-950oC.
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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