Grade NCF625
Corresponding Standard JIS G 4901-2008
Corrosion-Resistant and Heat-Resisting Superalloy Bars
Classification Alloy Steel
Properties Corrosion Resistance
NCF625 Chemical Element Composition Content (%)
Component Fe C Si Mn P S Cr Ni Mo Ti Al More
Minimum Value - - - - - - 20 58 8 - - Nb+Ta:3.15~4.15
Maximum Value 5 0.1 0.5 0.5 0.015 0.015 23 - 10 0.4 0.4
NCF625 Mechanical Properties
condition Heat Treatment or Condition
Tensile Strength
σb
Mpa
Yield Point
σs
Mpa
Elongation or Extension Rate
δ
%
Bar stock; d>2.5 Solution (S) ≥690 ≥275 ≥30
Bars; 2.5<d≤100 Annealing (A) ≥830 ≥415 ≥30
Bar; 100<d≤250 Annealing (A) ≥760 ≥345 ≥30
Approximate Comparison Table Corrosion-Resistant Alloy
China Japan South Korea United States Germany United Kingdom
GB ISC JIS KS Commercial Grade UNS DIN EN/DIN W-Nr. BS EN/BS
NS 3306
(NS 336)
(0Cr20Ni65Mo10Nb4)
H 06625
(H 03306)
NCF 625 NCF 625 Inconel 625 N 06625 NiCr22Mo9Nb 2.4856 NA 21
NA 43
NCF625 Corresponding Standards(Same grade name, different standards)

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