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EN 1.4971 Stainless Steel vs. SAE-AISI 1211 Steel

Both EN 1.4971 stainless steel and SAE-AISI 1211 steel are iron alloys. They have a modest 32% of their average alloy composition in common, which, by itself, doesn't mean much. There are 29 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is EN 1.4971 stainless steel and the bottom bar is SAE-AISI 1211 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 240
140 to 180
Elastic (Young's, Tensile) Modulus, GPa 210
190
Elongation at Break, % 34
11 to 29
Fatigue Strength, MPa 270
200 to 280
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 81
73
Shear Strength, MPa 530
280 to 350
Tensile Strength: Ultimate (UTS), MPa 800
430 to 580
Tensile Strength: Yield (Proof), MPa 340
260 to 460

Thermal Properties

Latent Heat of Fusion, J/g 300
250
Maximum Temperature: Mechanical, °C 1100
400
Melting Completion (Liquidus), °C 1460
1460
Melting Onset (Solidus), °C 1410
1420
Specific Heat Capacity, J/kg-K 450
470
Thermal Conductivity, W/m-K 13
52
Thermal Expansion, µm/m-K 15
12

Otherwise Unclassified Properties

Base Metal Price, % relative 70
1.8
Density, g/cm3 8.4
7.9
Embodied Carbon, kg CO2/kg material 7.6
1.4
Embodied Energy, MJ/kg 110
18
Embodied Water, L/kg 300
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 220
61 to 110
Resilience: Unit (Modulus of Resilience), kJ/m3 280
180 to 550
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 26
15 to 21
Strength to Weight: Bending, points 23
16 to 20
Thermal Diffusivity, mm2/s 3.4
14
Thermal Shock Resistance, points 19
14 to 18

Alloy Composition

Carbon (C), % 0.080 to 0.16
0 to 0.13
Chromium (Cr), % 20 to 22.5
0
Cobalt (Co), % 18.5 to 21
0
Iron (Fe), % 24.3 to 37.1
98.7 to 99.23
Manganese (Mn), % 0 to 2.0
0.6 to 0.9
Molybdenum (Mo), % 2.5 to 3.5
0
Nickel (Ni), % 19 to 21
0
Niobium (Nb), % 0.75 to 1.3
0
Nitrogen (N), % 0.1 to 0.2
0
Phosphorus (P), % 0 to 0.035
0.070 to 0.12
Silicon (Si), % 0 to 1.0
0
Sulfur (S), % 0 to 0.015
0.1 to 0.15
Tungsten (W), % 2.0 to 3.0
0