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S21904 Stainless Steel vs. EN 1.4849 Stainless Steel

Both S21904 stainless steel and EN 1.4849 stainless steel are iron alloys. They have 66% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is S21904 stainless steel and the bottom bar is EN 1.4849 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 210 to 300
140
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 17 to 51
4.5
Fatigue Strength, MPa 380 to 550
120
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 78
75
Tensile Strength: Ultimate (UTS), MPa 700 to 1000
480
Tensile Strength: Yield (Proof), MPa 390 to 910
250

Thermal Properties

Latent Heat of Fusion, J/g 290
320
Maximum Temperature: Corrosion, °C 430
620
Maximum Temperature: Mechanical, °C 980
1020
Melting Completion (Liquidus), °C 1400
1390
Melting Onset (Solidus), °C 1350
1340
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 14
12
Thermal Expansion, µm/m-K 17
15

Otherwise Unclassified Properties

Base Metal Price, % relative 15
42
Density, g/cm3 7.7
8.0
Embodied Carbon, kg CO2/kg material 3.0
7.1
Embodied Energy, MJ/kg 43
100
Embodied Water, L/kg 160
200

Common Calculations

PREN (Pitting Resistance) 25
20
Resilience: Ultimate (Unit Rupture Work), MJ/m3 160 to 310
18
Resilience: Unit (Modulus of Resilience), kJ/m3 380 to 2070
160
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 25 to 36
17
Strength to Weight: Bending, points 23 to 29
17
Thermal Diffusivity, mm2/s 3.8
3.2
Thermal Shock Resistance, points 15 to 21
11

Alloy Composition

Carbon (C), % 0 to 0.040
0.3 to 0.5
Chromium (Cr), % 19 to 21.5
18 to 21
Iron (Fe), % 59.5 to 67.4
32.6 to 43.5
Manganese (Mn), % 8.0 to 10
0 to 2.0
Molybdenum (Mo), % 0
0 to 0.5
Nickel (Ni), % 5.5 to 7.5
36 to 39
Niobium (Nb), % 0
1.2 to 1.8
Nitrogen (N), % 0.15 to 0.4
0
Phosphorus (P), % 0 to 0.045
0 to 0.040
Silicon (Si), % 0 to 1.0
1.0 to 2.5
Sulfur (S), % 0 to 0.030
0 to 0.030