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EN 1.4951 Stainless Steel vs. EN 1.4849 Stainless Steel

Both EN 1.4951 stainless steel and EN 1.4849 stainless steel are iron alloys. They have 79% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is EN 1.4951 stainless steel and the bottom bar is EN 1.4849 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170
140
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 38
4.5
Fatigue Strength, MPa 190
120
Poisson's Ratio 0.27
0.28
Shear Modulus, GPa 79
75
Tensile Strength: Ultimate (UTS), MPa 630
480
Tensile Strength: Yield (Proof), MPa 220
250

Thermal Properties

Latent Heat of Fusion, J/g 300
320
Maximum Temperature: Corrosion, °C 450
620
Maximum Temperature: Mechanical, °C 1100
1020
Melting Completion (Liquidus), °C 1410
1390
Melting Onset (Solidus), °C 1360
1340
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 15
12
Thermal Expansion, µm/m-K 16
15

Otherwise Unclassified Properties

Base Metal Price, % relative 25
42
Density, g/cm3 7.9
8.0
Embodied Carbon, kg CO2/kg material 4.3
7.1
Embodied Energy, MJ/kg 61
100
Embodied Water, L/kg 190
200

Common Calculations

PREN (Pitting Resistance) 26
20
Resilience: Ultimate (Unit Rupture Work), MJ/m3 190
18
Resilience: Unit (Modulus of Resilience), kJ/m3 130
160
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 22
17
Strength to Weight: Bending, points 21
17
Thermal Diffusivity, mm2/s 3.9
3.2
Thermal Shock Resistance, points 14
11

Alloy Composition

Carbon (C), % 0.040 to 0.080
0.3 to 0.5
Chromium (Cr), % 24 to 26
18 to 21
Iron (Fe), % 49.1 to 57
32.6 to 43.5
Manganese (Mn), % 0 to 2.0
0 to 2.0
Molybdenum (Mo), % 0
0 to 0.5
Nickel (Ni), % 19 to 22
36 to 39
Niobium (Nb), % 0
1.2 to 1.8
Nitrogen (N), % 0 to 0.1
0
Phosphorus (P), % 0 to 0.035
0 to 0.040
Silicon (Si), % 0 to 0.7
1.0 to 2.5
Sulfur (S), % 0 to 0.015
0 to 0.030