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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 ① 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 Austenitic Stainless Steel
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
07Cr18Ni11Nb Corresponding Standards(Same grade name, different standards)
1 GB /T 20878-2007
07Cr18Ni11Nb S34779 (1Cr19Ni11Nb)
2 GB /T 3280-2015
07Cr18Ni11Nb S34779 (1Cr19Ni11Nb)
3 GB /T 4238-2015
07Cr18Ni11Nb S34779 (1Cr19Ni11Nb)
4 GB 5310-2008
07Cr18Ni11Nb
5 GB /T 5310-2017
07Cr18Ni11Nb
6 GB /T 4237-2015
07Cr18Ni11Nb S34779 (1Cr19Ni11Nb)
7 GB /T 14975-2012
07Cr18Ni11Nb S34779 (1Cr19Ni11Nb)
8 GB /T 14976-2012
07Cr18Ni11Nb S34779 (1Cr19Ni11Nb)
9 GB /T 12771-2019
07Cr18Ni11Nb S34779
10 GB /T 24511-2017
07Cr18Ni11Nb S34779
11 GB /T 5310-2023
07Cr18Ni11Nb S34779
12 GB /T 20878-2024
07Cr18Ni11Nb S34779 (1Cr19Ni11Nb)

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