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Home Material EN 10253-4-2003
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Grade 1.4550
European Standard Steel Grade X6CrNiNb18-10
Corresponding Standard EN 10253-4-2003
Butt-welding pipe fittings. Wrought austenitic and austenitic-ferritic (duplex) stainless steels with specific inspection requirements
Classification Austenitic Stainless Steel
1.4550 Chemical Element Composition Content (%)
Component C Si Mn P S Cr Ni Nb
Minimum Value - - - - - 17 9 -
Maximum Value 0.08 1 2 0.045 0.015 19 12 1
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/AISI UNS ISO DIN EN/DIN W-Nr. NF EN/NF EN Numerical Grade GOST SS BS EN/BS
06Cr18Ni11Nb S34778 347 SUS 347 STS 347 347 S34700 X6CrNiNb 18-10 X6CrNiNb 18-10
(X10CrNiNb18-9) 		1.4550 Z6CNNb 18-10 X6CrNiNb 18-10 1.4550 08Х18Н12Б 2338 347S17
347S31
2 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/AISI UNS ISO DIN EN/DIN W-Nr. NF EN/NF EN Numerical Grade GOST SS BS EN/BS
06Cr18Ni11Nb
(0Cr18Ni11Nb) 		S34778 347 SUS 347 STS 347 347 S34700 X6CrNiNb 18-10 X6CrNiNb 18-10
(X10CrNiNb18-9) 		1.4550 Z6CNNb 18-10 X6CrNiNb 18-10 1.4550 08Х18Н12Б 2338 347S17
347S31
3 Approximate Comparison Table
China International Organization for Standardization European Standard
GB ISO EN
0Cr18Ni10Nb X6CrNiNb18-10 X6CrNiNb18-10
1.4550 Corresponding Standards(Same grade name, different standards)
1 EN 10088-1-2005
1.4550 X6CrNiNb 18-10
2 EN 10296-2-2005
1.4550 X6CrNiNb18-10
3 EN 10253-4-2003
1.4550 X6CrNiNb18-10
4 EN 10250-4-1999
1.4550 X6CrNiNb 18-10
5 EN 10088-2-2005
1.4550 X6CrNiNb18-10
6 DIN 17440-1972
1.4550 X10CrNiNb 18-9 X6CrNiNb 18-10
7 EN 10088-3-2005
1.4550 X6CrNiNb 18-10
8 EN 10088-3-2014
1.4550 X6CrNiNb 18-10
9 DIN EN 10088-3-2014
1.4550 X6CrNiNb 18-10
10 NF EN 10088-2-2005
1.4550 X6CrNiNb18-10
11 NF EN 10088-1-2005
1.4550 X6CrNiNb18-10
12 NF EN 10028-7-2008
1.4550 X6CrNiNb18-10
13 NF EN 10296-2-2005
1.4550 X6CrNiNb18-10
14 NF EN 10028-7-2000
1.4550 X6CrNiNb18-10
15 DIN EN 10296-2-2006
1.4550 X6CrNiNb18-10

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