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X45CrSi9-3 | 1.4718 Material Datasheet

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Material Description

Material Number Material Number (single) Standard Range of Application Standard Status Country Predecessor
1.4718 (DIN EN 10090 : 1998-03) 1.4718 DIN EN 10090 : 1998-03 Supersedes DIN 17480 : 1992-05 Valid Germany X 45 CrSi 9 3 1)
1) Remark: X45CrSi9-3 is a martensitic Cr-Si-alloyed valve steel. The steel shows excellent nitriding and surface hardenability, it is suitable for upsetting. Moderate resistance in exhaust condensate. This applies also to lead compounds at increased temperatures. Tempering resistance at continuous operation up to approx. 700 deg. Use: inlet valves, shanks, valves

Chemical Composition

C [%] Cr [%] Mn [%] Ni [%] P [%] S [%] Si [%]
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Mechanical Properties

Semi-finished Product Condition Nominal Size [mm] Temperature [°C] Tensile Strength [MPa] Yield Strength (0.2% offset) [MPa] Elongation A [%] Reduction of Area [%] Hardness HB | HBW
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Physical Properties

Temperature [°C] Density [g/cm³] Young's Modulus [GPa] Mean Coefficient of Thermal Expansion (reference 20°C) [10^-6*K^-1] Thermal Conductivity [W/(m*K)] Mean Specific Heat Capacity [kJ/(kg*K)] Magnetizeability
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Creep Rupture Behaviour

Condition Temperature [°C] Creep Tensile Strength at 10³ h [MPa]
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Heat Treatment

Heat Treatment Step Temperature [°C] Medium
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Cross Reference

Material Name Country Standard
45Cr9Si3 China GB/T 12773 1)
S48045 China GB/T 12773 1)
X45CrSi9-3 Europe EN 10090
X45Cr9Si3 India IS 7494 1)
V-8 India IS 7494 1)
SUH1 Japan JIS G 4311 1)
STR1 South Korea KS D 3731 1)
40Ch9S2 Russia GOST 5632 1)
40Х9С2 Russia ГОСТ 5632 1)
SUH 1 Japan JIS G 4311-91 1)
HNV3 USA SAE J775 1)
S65007 USA UNS 1)
Silchrome 1 USA 2)
Sil 1 USA 2)
1) Source: Stahlschlüssel 2016, Verlag Stahlschlüssel Wegst GmbH, Marbach
2) Source: Metals & Alloys in the Unified Numbering System, SAE/ASTM, 11th Edition, 2008

Material Compliance

REACh RoHS
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Linear-elastic

Temperature [°C] Young's modulus [GPa] Bulk modulus [GPa] Shear modulus [GPa] Poisson's ratio
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Alternating stress

Temperature [°C] Stress ratio Mean stress [MPa] Alternating stress [MPa] Cycles
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Yield strength

Temperature [°C] 0.1% Proof strength [MPa] 0.2% Proof strength [MPa] Yield strength [MPa]
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Coefficient thermal expansion

Related Temperature [°C] Temperature [°C] Coefficient thermal expansion [10^-6*K^-1]
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Specific heat

Temperature [°C] Specific heat [kJ/(kg*K)]
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Density

Temperature [°C] Density [g/cm³]
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Tensile strength

Temperature [°C] Tensile strength [MPa]
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Thermal conductivity

Temperature [°C] Thermal conductivity [W/(m*K)]
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Classification

WIAM Material Treatment Semi-finished product Dimension [mm] Load type Failure criteria Rolling direction Maximum stress [MPa] Strain at maximum stress [%] Source description
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Designation

Designation Material number Source
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Yield strength

Temperature [°C] 0.1% Proof strength [MPa] 0.2% Proof strength [MPa] Yield strength [MPa]
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Tensile strength

Temperature [°C] Tensile strength [MPa]
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Classification

WIAM Material Treatment Semi-finished product Dimension [mm] Load type Failure criteria Rolling direction Maximum stress [MPa] Strain at maximum stress [%] Source description
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Yield strength

Temperature [°C] 0.1% Proof strength [MPa] 0.2% Proof strength [MPa] Yield strength [MPa]
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Tensile strength

Temperature [°C] Tensile strength [MPa]
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Classification

WIAM Material Treatment Semi-finished product Dimension [mm] Load type Failure criteria Rolling direction Maximum stress [MPa] Strain at maximum stress [%] Source description
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