Grade HF30
USA UNS J92803
Corresponding Standard ASTM A 608/A608M-2020
Standard Specification for Centrifugally Cast Iron-Chromium-Nickel High-Alloy Tubing for Pressure Application at High Temperatures
Classification Cast Steel
HF30 Chemical Element Composition Content (%)
Component C Si Mn P S Cr Ni Mo
Minimum Value 0.25 0.5 - - - 19 9 -
Maximum Value 0.35 2 1.5 0.04 0.04 23 12 0.5
HF30 Mechanical Properties
Test Temperature Tensile Strength
σb
Mpa
Elongation or Extension Rate
δ
%
≥180 ≥7
≥100 ≥9

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