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EN 1.3549 Stainless Steel vs. S20910 Stainless Steel

Both EN 1.3549 stainless steel and S20910 stainless steel are iron alloys. They have 77% of their average alloy composition in common. There are 25 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is EN 1.3549 stainless steel and the bottom bar is S20910 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 220
230 to 290
Elastic (Young's, Tensile) Modulus, GPa 200
200
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
79
Tensile Strength: Ultimate (UTS), MPa 730
780 to 940

Thermal Properties

Latent Heat of Fusion, J/g 280
300
Maximum Temperature: Corrosion, °C 400
460
Maximum Temperature: Mechanical, °C 910
1080
Melting Completion (Liquidus), °C 1430
1420
Melting Onset (Solidus), °C 1390
1380
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 21
13
Thermal Expansion, µm/m-K 10
16

Otherwise Unclassified Properties

Base Metal Price, % relative 10
22
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 2.6
4.8
Embodied Energy, MJ/kg 37
68
Embodied Water, L/kg 130
180

Common Calculations

PREN (Pitting Resistance) 22
34
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 27
28 to 33
Strength to Weight: Bending, points 24
24 to 27
Thermal Diffusivity, mm2/s 5.6
3.6
Thermal Shock Resistance, points 26
17 to 21

Alloy Composition

Carbon (C), % 0.85 to 1.0
0 to 0.060
Chromium (Cr), % 17 to 19
20.5 to 23.5
Iron (Fe), % 77.5 to 82
52.1 to 62.1
Manganese (Mn), % 0 to 1.0
4.0 to 6.0
Molybdenum (Mo), % 0.9 to 1.3
1.5 to 3.0
Nickel (Ni), % 0
11.5 to 13.5
Niobium (Nb), % 0
0.1 to 0.3
Nitrogen (N), % 0
0.2 to 0.4
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 0.75
Sulfur (S), % 0 to 0.030
0 to 0.030
Vanadium (V), % 0.070 to 0.12
0.1 to 0.3