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X7CrNiAl17-7 | 1.4568 Material Datasheet

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Material Description

Material Number Material Name Material Number (single) Standard Scope Standard Status Country Successor VDA 231-106 classification
1.4568 (DIN EN 10088-1 : 2005-09) X7CrNiAl17-7 1.4568 DIN EN 10088-1 : 2005-09 DIN EN 10088-1 : 1995-08 replaced by DIN EN 10088-1 : 2014-12 Replaced Germany X7CrNiAl17-7 1.1.2 1)
1) Remark: Material X7CrNiAl17-7 is comparable to X 7 CrNiAl 17 7 acc. to DIN17224 : 1982-02. The material is a hardenable stainless steel with high strength and hardness, sufficient corrosion resistance and satisfactory workability. It shows the lowest corrosion resistance within the group of type 1.4301 owing to the lowered Cr- and Ni-content and the Al-addition. Application in aircraft industry and in leight weight construction for surface facings, fuel reservoirs, valve components, pressure vessels, presswork components in wear loaded assemblies.

Chemical Composition

Al [%] C [%] Cr [%] Mn [%] Ni [%] P [%] S [%] Si [%] Remainder
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Material Compliance

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Mechanical Properties

Semi-finished Product Condition Nominal Size [mm] Temperature [°C] Specimen Direction Tensile Strength [MPa] Yield Strength (0.2% offset) [MPa] Elongation A [%] Elongation A80 [%] Hardness HB | HBW
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Physical Properties

Temperature [°C] Density [g/cm³] Young's Modulus [GPa] Poisson's Ratio Mean Coefficient of Thermal Expansion (reference 20°C) [10^-6*K^-1] Differential Coefficient of Thermal Expansion [10^-6*K^-1] Thermal Conductivity [W/(m*K)] Thermal Diffusivity [10^-6 m²/s] Specific Electrical Resistance [µΩm] Mean Specific Heat Capacity [kJ/(kg*K)] True Specific Heat Capacity [kJ/(kg*K)] Magnetizeability
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Heat Treatment

Semi-finished Product Heat Treatment Step Temperature [°C] Holding Time [h] Medium
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Cross Reference

Material Name Country Standard
S17700 USA AISI
0Cr17Ni7Al China GB T 1220
0Cr17Ni7Al China GB T 3280
0Cr17Ni7Al China GB T 4231
0Cr17Ni7Al China GB T 4237
0Cr17Ni7Al China GB T 4238
0Cr17Ni7Al China GB T 4239
Z 8 CNA 17-07 France NF A 35-581
301 S 81 Great Britain BS 2056
301 S 81 Great Britain BS 2056
09Ch17N7Ju1 Russia GOST 5632
S51778 China ISC
X7CrNiAl17-7 International ISO 16143-1
X7CrNiAl17-7 International ISO 16143-2
X7CrNiAl17-7 International ISO 16143-3
X7CrNiAl17-7 International ISO 6931-1
X7CrNiAl17-7 International ISO 6931-2
X7CrNiAl17-7 International ISO TS 15510
SUS 631 Japan JIS G 4303
SUS 631 Japan JIS G 4304
SUS 631 Japan JIS G 4305
SUS 631-CSP Japan JIS G 4313
STS 631 South Korea KS D 3534
STS 631 South Korea KS D 3698
STS 631 South Korea KS D 3705
STS 631 South Korea KS D 3706
2388 Sweden MNC 900 E
S17700 USA UNS
S17700 USA AMS 5528
S17700 USA AMS 5529
S17700 USA AMS 5568
S17700 USA AMS 5644
S17700 USA AMS 5678
631 USA ASME SA-705
631 USA ASTM A 313
631 USA ASTM A 564
62 USA ASTM A 579
631 USA ASTM A 693
631 USA ASTM A 705
631 USA ASTM F 899
S17700 USA SAE J 217
17-7PH USA SAE J 467
X 7 CrNiAl 17 7 Germany DIN 17224
X7CrNiAl17-7 Europe EN 10088-4
X7CrNiAl17-7 Europe EN 10088-5

Producer/Supplier/Trade names

Tradename Supplier
1.4568 Rolf Kind GmbH, Gummersbach
1.4568 Sprint Metal Edelstahlziehereien GmbH, Hemer
1.4568 INOX SERVICE CENTER GmbH, Krefeld
1.4568 INTERSTAHL Service GmbH, Wetter
1.4568 Imet Industriemetall Handelsgesellschaft mbH, Hamburg
17-7 PH Enpar Sonderwerkstoffe GmbH, Gummersbach
AL 17-7 ATI Flat Rolled Products GmbH, Remscheid
Alloy 17-7PH ROPA STAHLVERTRIEB GMBH, Bad Bergzabern
ARGESTE 1.4568 Zapp Precision Metals GmbH, Schwerte
AVESTA-Polarit 4568 Outokumpu GmbH, Willich
BEKINOX PH1 Bekaert GmbH, Friedrichsdorf
BGH 4568 BGH Edelstahl Siegen GmbH
BÖHLER N750 voestalpine BÖHLER Edelstahl GmbH & Co.KG, Kapfenberg
Cogne 631 COGNE Edelstahl GmbH, Neuss
NIROSTA 4568 Deutsche Edelstahlwerke Specialty Steel GmbH & Co. KG, Witten
NIROSTA 4568 Outokumpu Nirosta GmbH, Krefeld
Puro 1.4568 Remystahl GmbH & Co. KG, Hagen
SANDVIK 9RU10 SANDVIK Materials TEchnology Deutschland GmbH, Düsseldorf
THENOX 4568 C.D. Wälzholz GmbH & Co. KG, Hagen
UGINE S4568 Ugitech SA, Ugine
X7CrNiAl17-7 Hoesch Hohenlimburg GmbH, Hagen
X7CrNiAl17-7 HEINE + BEISSWENGER Stiftung + Co.KG, Fellbach
X7CrNiAl17-7 Tata Steel, IJmuiden
X7CrNiAl17-7 EZM Edelstahlzieherei Mark GmbH, Wetter
X7CrNiAl17-7 pauly STAHLHANDEL, Essen