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Grade X7CrNiAl 17-7
European Standard Steel Grade 1.4568
Corresponding Standard EN 10088-1-2005
Staehle Stainless steels. Part 1:List of stainless steels
Classification Precipitation-Hardening Stainless Steel
Properties Corrosion Resistance
Density 7.8 g/cm3
X7CrNiAl 17-7 Chemical Element Composition Content (%)
Component C ⓒ Si Mn P S Cr Ni ⓓ Al
Minimum Value - - - - - 16 6.5 0.7
Maximum Value 0.09 0.7 1 0.04 0.015 18 7.8 1.5
① Elements not listed in this table shall not be intentionally added to the steel without the agreement of the purchaser except for finishing the cast. All appropriate precautions are to be taken to avoid the addition of such elements from scrap and other materials used in production which would impair mechanical properties and the suitability of the steel.
1 Approximate Comparison Table Precipitation Hardening Stainless Steel
China Taiwan, China Japan South Korea United States International Organization for Standardization Germany France European Standard Russia
GB ISC CNS JIS KS ASTM UNS ISO DIN EN/DIN W-Nr. NF EN/NF EN Numerical Grade GOST
07Cr17Ni7Al
(0Cr17Ni7Al) 		S51770 631 SUS 631 STS 631 631 S17700 X7CrNiAl 17-7
2
(ISO 683-13-1986) 		X7CrNiAl 17-7 1.4568 Z8CNA 17-07 X7CrNiAl 17-7 1.4568 09Х17Н7Ю
2 Approximate Comparison Table Precipitation Hardening Heat-Resistant Steel
China Taiwan, China Japan South Korea United States International Organization for Standardization Germany France European Standard Russia
GB ISC CNS JIS KS ASTM UNS ISO DIN EN/DIN W-Nr. NF EN/NF EN Numerical Grade GOST
07Cr17Ni7Al
(0Cr17Ni7Al) 		S51770 631 SUS 631 STS 631 631 S17700 X7CrNiAl 17-7 X7CrNiAl 17-7 1.4568 Z8CNA 17-07 X7CrNiAl 17-7 1.4568 09Х17Н7Ю
3 Approximate Comparison Table Precipitation Hardening Stainless Steel
United States International Organization for Standardization France European Standard Russia Sweden United Kingdom
ASTM ISO NF EN/NF EN Numerical Grade GOST SS BS EN/BS
631 X7CrNiAl17-7 Z9CNA17-07 X7CrNiAl17-7 1.4568 09KH17N7YU 2388 301S81
X7CrNiAl17-7 Corresponding Standards(Same grade name, different standards)
1 EN 10088-1-2005
X7CrNiAl 17-7 1.4568
2 ISO TS 15510-2003
X7CrNiAl17-7
3 DIN 17224-1982
X7CrNiAl 17-7 1.4568
4 EN 10088-3-2014
X7CrNiAl 17-7 1.4568
5 ISO 15510-2014
X7CrNiAl17-7 4568-177-00-I
6 DIN EN 10088-3-2014
X7CrNiAl 17-7 1.4568
7 DIN EN 10270-3-2012
X7CrNiAl17-7 1.4568
8 DIN EN 10151-2002
X7CrNiAl17-7 1.4568

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