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Grade X7CrNiTi18-10
Old Grade
Corresponding Standard ISO 4955-1994
Heat-Resistant Steels and Alloy
Classification Austenitic Stainless Steel
Properties Corrosion Resistance
X7CrNiTi18-10 Chemical Element Composition Content (%)
Component C ① Si Mn P S Cr Ni More
Minimum Value - - - - - 17 9 Ti: 5×C%≤0.8
Maximum Value 0.1 1 2 0.045 0.03 19 12
① A minimum of 0,04 % C shall also apply
New and Old Grade Replacement List
Corresponding Standard Grade
ISO 4955-1994
Grade
Old Grade
ISO 4955-2005
Grade
ISO 4955-2016
Grade
ISO Numeric Designation
1 Approximate Comparison Table Austenitic Stainless Steel
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 Austenitic Heat-Resistant Steel
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 DIN EN/DIN W-Nr. NF EN/NF EN Numerical Grade GOST SS BS EN/BS
07Cr19Ni11Ti
(1Cr18Ni11Ti) 		S32169 321 SUS 321 STS 321 321H S32109 X7CrNiTi 18-10 X12CrNiTi 18-9 1.4878 Z6CNT 18-12 X10CrNiTi 18-10 1.4878 12Х18Н10Т 2337 321S20
3 Approximate Comparison Table Austenitic Heat-Resistant Steel
Japan United States International Organization for Standardization France European Standard Russia Sweden United Kingdom
JIS ASTM UNS ISO NF EN/NF EN Numerical Grade GOST SS BS EN/BS
SUS321H 321H S32109 X7CrNiTi18-10 Z6CNT18-10 X8CrNiTi18-10 1.4878 12KH18N10T 2337 321S12
321S51
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
3 ISO TS 15510-2003
X7CrNiTi18-10
4 ISO 9327(-5)-1999
X7CrNiTi18-10 (F54)
5 ISO 4955-1994
X7CrNiTi18-10 (H11)
6 ISO 15510-2014
X7CrNiTi18-10 4940-321-09-I
7 ISO 4955-2016
X7CrNiTi18-10 4940-321-09-I
8 NF EN 10088-1-2005
X7CrNiTi18-10 1.4940

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