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EN 1.4655 Stainless Steel vs. SAE-AISI M30 Steel

Both EN 1.4655 stainless steel and SAE-AISI M30 steel are iron alloys. They have 74% of their average alloy composition in common. There are 22 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is EN 1.4655 stainless steel and the bottom bar is SAE-AISI M30 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Poisson's Ratio 0.27
0.29
Shear Modulus, GPa 78
78
Tensile Strength: Ultimate (UTS), MPa 720 to 730
800 to 2170

Thermal Properties

Latent Heat of Fusion, J/g 290
270
Melting Completion (Liquidus), °C 1420
1550
Melting Onset (Solidus), °C 1370
1500
Specific Heat Capacity, J/kg-K 480
450
Thermal Conductivity, W/m-K 15
24
Thermal Expansion, µm/m-K 13
12

Otherwise Unclassified Properties

Base Metal Price, % relative 15
26
Density, g/cm3 7.7
8.2
Embodied Carbon, kg CO2/kg material 2.9
7.2
Embodied Energy, MJ/kg 41
100
Embodied Water, L/kg 160
120

Common Calculations

PREN (Pitting Resistance) 26
35
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 26
27 to 74
Strength to Weight: Bending, points 23
24 to 46
Thermal Diffusivity, mm2/s 4.0
6.6
Thermal Shock Resistance, points 20
25 to 67

Alloy Composition

Carbon (C), % 0 to 0.030
0.75 to 0.85
Chromium (Cr), % 22 to 24
3.5 to 4.3
Cobalt (Co), % 0
4.5 to 5.5
Copper (Cu), % 1.0 to 3.0
0 to 0.25
Iron (Fe), % 63.6 to 73.4
75.2 to 80.9
Manganese (Mn), % 0 to 2.0
0.15 to 0.4
Molybdenum (Mo), % 0.1 to 0.6
7.8 to 9.0
Nickel (Ni), % 3.5 to 5.5
0 to 0.3
Nitrogen (N), % 0.050 to 0.2
0
Phosphorus (P), % 0 to 0.035
0 to 0.030
Silicon (Si), % 0 to 1.0
0.2 to 0.45
Sulfur (S), % 0 to 0.015
0 to 0.030
Tungsten (W), % 0
1.3 to 2.3
Vanadium (V), % 0
1.0 to 1.4