Grade 07Cr18Ni11Nb
Corresponding Standard GB 5310-2008
Seamless steel tubes and pipes for high pressure boiler
Classification Austenitic Stainless Steel
07Cr18Ni11Nb Chemical Element Composition Content (%)
Component C Si Mn P S Cr Ni Cu More
Minimum Value 0.04 - - - - 17 9 - Nb:8C~1.1
Maximum Value 0.1 0.75 2 0.03 0.015 19 13 0.25
1 Approximate Comparison Table
China Japan United States International Organization for Standardization France European Standard
GB ISC JIS ASTM/AISI UNS ISO Numerical Grade NF EN/NF EN Numerical Grade
07Cr18Ni11Nb
(1Cr19Ni11Nb)
S34779 SUS347H 347H S34709 X7CrNiNb18-10 4912-347-09-I Z2CND17-11
Z2CND18-13
Z8CNNb18-10
X7CrNiNb18-10 1.4912
2 Approximate Comparison Table Seamless steel tubes and pipes for high pressure boiler
China United States European Standard
GB ISC ASTM/AISI EN
07Cr18Ni11Nb S34779 SA-213 TP347H X7CrNiNb18-10

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