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UNS S32550 vs UNS S32003 ( 1.4507 vs AL 2003 )

UNS S32550 vs UNS S32003 ( 1.4507 vs AL 2003 )

PropertyUNS S32550 (1.4507 / F61)UNS S32003 (AL 2003)
COMPOSITION (%)
Cr (chromium)24 – 2719.5 – 22.5
Ni (nickel)4.5 – 6.53 – 4
Mo (molybdenum)2.9 – 3.91.5 – 2
N (nitrogen)0.1 – 0.250.14 – 0.2
Cu (copper)1.5 – 2.5—
Mn (manganese)0 – 1.50 – 2
W (tungsten)——
PHYSICAL
Density (g/cm3)7.73 – 7.827.69 – 7.76
MECHANICAL
Young’s Modulus (GPa)195 – 205190 – 210
Yield Strength (MPa)520 – 580515 – 550
Tensile Strength (MPa)730 – 810725 – 760
Elongation (% strain)23 – 2731.5 – 36.5
Hardness – Brinell (HB)240 – 264218 – 228
Hardness – Rockwell C2819 – 21
Fatigue Strength @ 10^7 (MPa)246 – 271330 – 380
Fracture Toughness (MPa*m^0.5)192 – 212150 – 195
THERMAL
Melting Point (C)1400 – 14501400 – 1450
Max Service Temp (C)335 – 365335 – 365
Min Service Temp (C)-60 – -50-60 – -50
Thermal Conductivity (W/m*C)13.3 – 1716.3 – 17.7
CORROSION RESISTANCE
PREN35.2 – 43.926.7 – 32.3
Pitting & Crevice CorrosionVery High (>40)High (30-40)
Stress Corrosion CrackingSusceptibleSusceptible
Sea WaterExcellentGood
Sour Oil & GasGoodGood
PROCESSING
Machining Speed (m/min)16.518.9
WeldabilityGood (MIG/plasma/SAW/TIG: Excellent)Good (MIG/plasma/SAW/TIG: Good)
Metal CastingUnsuitableUnsuitable
Metal Hot FormingAcceptableAcceptable
Carbon Equivalency1.12 – 1.480.8 – 1.08
NOTES
Generation / Notes2nd generation duplex—
Typical Uses——
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UNS S32760
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