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	PRODUCT DATA of AM 350

Material	AM 350
Product Datasheet	Pyromet 350
General Information	Alloy 350 is a chromium-nickel-molybdenum stainless steel which can be hardnened by martensitic transformation and/or precipitation hardening. The alloy can be hardened by subzero cooling and tempering (Condition SCT). Depending upon the heat treatment,alloy 350 may have an austenitic structure for best formability,or a martensitic structure with strengths comparable to those of martensitic steels. The alloy normally contains about 5 to 10% delta ferrite.
Chemical Composition	Fe-16Cr-3Mo-4Ni-0.1N-1Mn-0.1C

	EXPERIENCE IN PRACTICE

Equivalent Designations

Pyromet 350

	PHYSICAL PROPERTIES

Specific Gravity

7.92

	ELASTIC PROPERTIES

Tensile Modulus

203 GPa

	THERMAL PROPERTIES

Thermal Conductivity	14.5 W/m.K
Thermal Expansion Coefficient	11.3 μstrain/°C
Melting Range	1370 to 1400 °C

	RELEVANT PROPERTIES FOR USE IN SPACE COMMUNITY

Stress Corrosion Status	High Resistance to SCC: Table 1 High resistance to stress corrosion in SCT1000 condition Remark: acc. to ECSS-Q-ST-70-36C Data Quality: Design Data
EMF vs SCE	-0.06 V Remark: Measured in 3.5% NaCl solution Data Quality: Design Data
Welding	This alloy can be successfully welded using all common methods with the notable exception of Oxyacetylene. While preheating the weld piece is not required, it is recommended that the material be annealed after welding to retain maximum properties. For best strength at elevated temperature a filler metal should be chosen that is of similar chemistry.