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Grade X7CrNiTi 18-10
European Standard Steel Grade 1.4940
Corresponding Standard EN 10088-1-2005
Staehle Stainless steels. Part 1:List of stainless steels
Classification Austenitic Stainless Steel
Properties Corrosion Resistance
Density 7.9 g/cm3
X7CrNiTi 18-10 Chemical Element Composition Content (%)
Component C Si Mn P S Cr Ni N More
Minimum Value 0.04 - - - - 17 9 - Ti：5×(C+N) ~ 0.80
Maximum Value 0.08 1 2 0.04 0.015 19 13 0.11
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
China Taiwan, China Japan South Korea United States International Organization for Standardization Germany France European Standard Russia Sweden United Kingdom
GB ISC CNS JIS KS ASTM UNS ISO Numerical Grade DIN EN/DIN W-Nr. NF EN/NF EN Numerical Grade GOST SS BS EN/BS
07Cr19Ni11Ti
(1Cr18Ni11Ti) 		S32169 321 HTP SUS 321 HTP
SUS 321 H 		STS 321 HTP 321H S32109 X7CrNiTi 18-10
X6CrNiTiB 18-10 		4940-321-09-I X12CrNiTi 18-9 1.4878 Z6CNT 18-12 X8CrNiTi 18-10
X6CrNiTiB 18-10 		1.4878
1.4941
1.4940 		12Х18Н10Т 2337 321S20
2 Approximate Comparison Table Seamless steel tubes and pipes for high pressure boiler
China United States European Standard
GB ISC ASTM/AISI EN
07Cr19Ni11Ti S32169 SA-213 TP321H X7CrNiTi18-10
X7CrNiTi18-10 Corresponding Standards(Same grade name, different standards)
1 EN 10088-1-2005
X7CrNiTi 18-10 1.4940
2 ISO 4955-2005
X7CrNiTi18-10 (11)
3 ISO TS 15510-2003
X7CrNiTi18-10
4 ISO 9327(-5)-1999
X7CrNiTi18-10 (F54)
5 ISO 15510-2014
X7CrNiTi18-10 4940-321-09-I
6 ISO 4955-2016
X7CrNiTi18-10 4940-321-09-I (11)
7 NF EN 10088-1-2005
X7CrNiTi18-10 1.4940

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