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There are more than 2,500 standardized types of steel worldwide, which differ in their composition, manufacturing and post-treatment processes and therefore also in their intended use. Almost 400 of these materials are also produced in our rolling mills. Finding your way around often costs time and nerves.
Our material database should save you time and nerves and make the material search easier.
If you already know the required material, simply use our search function. For example, search for the short name, EN, AISI or UNS. Under Details you will also find the detailed data sheet, which is also available for download.
Further information on using the material database can be found here.

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1.4548 - X5CrNiCuNb17-4-4 - 630 - S17400

Property Value
EN 1.4548
Short Name X5CrNiCuNb17-4-4
AISI 630
UNS S17400
Common Designations 17-4PH®; AFNOR X5CrNiCuNb17-4-4; JIS SUS630
Typical Applications Corrosion-resistant hardenable martensitic steel for the aerospace industry, rocket construction, mechanical engineering, energy technology and measurement and control technology
Applicable Standards WL 1.4548; ASTM A564; AMS 5622; ASTM F899; EN ISO 7153-1; AMS 5643
C max. 0,07
Si max. 1,00
Mn max. 1,00
P max. 0,025
S max. 0,015
Cr 15,0-17,5
Ni 3,00-5,00
Mo max. 0,50
Cu 3,0-5,0
Nb 5xC - 0,45
W 5xC - 0,45
Analysis Note acc. to AMS 5622
Density [kg/dm³] 7,80
Electrical Resistance at 20°C [Ohm*mm²/m] 0,71
Thermal Conductivity at 20°C [W/m*K] 16,0
Mc Thermal Expansion [10⁻⁶ * K⁻¹] 20-100 °C: 10,9 / 20-200 °C: 11,1
Typical Heat Treatment solution annealed
Typical Hardness [HBW] max. 360
Typical Tensile Strength [MPa] ≈ 1100
Category Automotive
Aerospace
Chemical industry
Energy technology
Defence
Medical technology
Datasheet (PDF)