Grade A351 HK30
USA UNS J94203
Corresponding Standard ASTM A351/A351M-2018
Standard Specification for Castings, Austenitic, for Pressure-Containing Parts
Classification Cast Steel
Properties Corrosion Resistance
A351 HK30 Chemical Element Composition Content (%)
Component C Si Mn P S Cr Ni Mo
Minimum Value 0.25 - - - - 23 19 -
Maximum Value 0.35 1.75 1.5 0.04 0.04 27 22 0.5
A351 HK30 Mechanical Properties
Tensile Strength
σb
Mpa
Yield Point
σs
Mpa
Elongation or Extension Rate
δ
%
≥450 ≥240 ≥10
1 Approximate Comparison Table Heat-Resistant Cast Steels and Alloys
China Taiwan, China Japan South Korea United States International Organization for Standardization Germany France Russia United Kingdom
GB ISC CNS JIS KS ASTM UNS ISO DIN EN/DIN W-Nr. NF EN/NF GOST BS EN/BS
ZG40Cr25Ni20Si2 C53901 SCH 21 SCH 21 HRSC 21 HK30 J94203 GX40NiCrSi25-20 GX40NiCrSi25-20 1.4848 Z40CN25.20M ≈15Х23Н18Л 310C40
2 Approximate Comparison Table Heat-Resistant Cast Steels and Alloys
China Japan United States Germany Russia
GB JIS ASTM UNS DIN EN/DIN W-Nr. GOST
ZG1Cr25Ni20Si2 SCH21 HK-30 J94203 G-X15CrNiSi25 20 1.4840 15Х23Н18Л

Note: The data is for reference only! If you have any questions, please fill out "I want to correct it"!