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Grade NiCr19Fe19Nb5Mo3
ISO Numeric Designation 4668-077-18-I
Corresponding Standard ISO 4955-2016
Heat-Resistant Steels
Classification Alloy Steel
Properties Corrosion Resistance
NiCr19Fe19Nb5Mo3 Chemical Element Composition Content (%)
Component C Si Mn P S Cr Ni Cu Mo Ti B Co Al More
Minimum Value 0.02 - - - - 17 50 - 2.8 0.6 0.002 - 0.3 Nb+Ta：4.7~5.5
Maximum Value 0.08 0.35 0.35 0.015 0.015 21 55 0.3 3.3 1.2 0.006 1 0.7
NiCr19Fe19Nb5Mo3 Mechanical Properties
Heat Treatment or Condition
Tensile Strength
σb
Mpa 		Yield Point
σs
Mpa 		Reduction of Area
ψ
%
flat products,0.5≤t＜3 Precipitation Hardening (+P) ≥1230 ≥1030
flat products,3≤t≤20 Precipitation Hardening (+P) ≥1230 ≥1030 ≥12
Section steel, 5 ≤ d ≤ 160 Precipitation Hardening (+P) ≥1230 ≥1030 ≥12
NiCr19Fe19Nb5Mo3 Corresponding Standards(Same grade name, different standards)
1 EN 10302-2008
NiCr19Fe19Nb5Mo3 2.4668
2 EN 10269-2013
NiCr19Fe19Nb5Mo 3 2.4668
3 DIN 17750-2002
NiCr19Fe19Nb5Mo3 2.4668
4 DIN 17744-2002
NiCr19Fe19Nb5Mo3 2.4668
5 DIN 17752-2002
NiCr19Fe19Nb5Mo3 2.4668
6 DIN 17744-2020
NiCr19Fe19Nb5Mo3 2.4668
7 GB /T 26030-2010
NiCr19Fe19Nb5Mo3 NW7718
8 DIN EN 10269-2014
NiCr19Fe19Nb5Mo 3 2.4668
9 ISO 4955-2016
NiCr19Fe19Nb5Mo3 4668-077-18-I

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