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Notes on use (click to expand)

Notes on use (click to expand)

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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1.4550 - X6CrNiNb18-10 - 347 - S34700

Property Value
EN 1.4550
Short Name X6CrNiNb18-10
AISI 347
347H
UNS S34700
Common Designations SS 2338; F347
Typical Applications Corrosion-resistant austenitic steel for plant construction, apparatus construction, mechanical engineering, power plant construction, energy technology and the nuclear industry
Applicable Standards EN 10088-3; EN 10272; ASTM A276; ASME SA276; ASTM A479; ASME SA479; ASTM A182; ASME SA182; AD 2000 W2 + W10; PED 97/23/EC
C max. 0,08
Si max. 1,00
Mn max. 2,00
P max. 0,045
S max. 0,015
Cr 17,0-19,0
Ni 9,0-12,0
Nb 10xC - 1,00
W 10xC - 1,00
Analysis Note acc. to EN 10088-3
Density [kg/dm³] 7,90
Electrical Resistance at 20°C [Ohm*mm²/m] 0,73
Thermal Conductivity at 20°C [W/m*K] 15,0
Mc Thermal Expansion [10⁻⁶ * K⁻¹] 20-100 °C: 16,0 / 20-400 °C: 17,5 / 20-500 °C: 18,0
Typical Heat Treatment solution annealed
Typical Hardness [HBW] max. 215
Typical Tensile Strength [MPa] 500-700
Category Aerospace
Chemical industry
Datasheet (PDF)