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PRODUCT DATA of Custom 455 H1000
MaterialCustom 455 H1000
Product Datasheetcustom 455
455 cryo
455 fat
455 mech
455 temp
General InformationCustom 455 is a precipitation hardenable stainless steel with a martensitic structure in both the solution annealed and hardened conditions. It is used for parts requiring corrosion resistance and high strength at temperatures up to 425 C.
PrecautionsLow resistance to SCC in lower than H1000 conditions: table 3
Chemical CompositionFe-11.75Cr-8.5Ni-1.2Nb+Ta-0.3Ti-2.25Cu
PHYSICAL PROPERTIES
Specific Gravity7.75
ELASTIC PROPERTIES
Tensile Modulus197 GPa
Poisson Ratio0.3
THERMAL PROPERTIES
Thermal Conductivity17.3 W/m.K
Thermal Expansion Coefficient10.3 μstrain/°C
RELEVANT PROPERTIES FOR USE IN SPACE COMMUNITY
Stress Corrosion StatusHigh Resistance to SCC: Table 1
High resistance to SCC in the H1000 or above condition
Remark: acc. to ECSS-Q-ST-70-36C
Data Quality: Design Data
WeldingThe alloy can be welded by resistance, butt welding, spot welding and TIG methods