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SAE-AISI H21 Steel vs. EN 1.4913 Stainless Steel

Both SAE-AISI H21 steel and EN 1.4913 stainless steel are iron alloys. They have a moderately high 91% 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 SAE-AISI H21 steel and the bottom bar is EN 1.4913 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 76
75
Tensile Strength: Ultimate (UTS), MPa 720 to 1790
870 to 980

Thermal Properties

Latent Heat of Fusion, J/g 250
270
Melting Completion (Liquidus), °C 1630
1460
Melting Onset (Solidus), °C 1580
1410
Specific Heat Capacity, J/kg-K 440
480
Thermal Conductivity, W/m-K 27
24
Thermal Expansion, µm/m-K 11
11

Otherwise Unclassified Properties

Base Metal Price, % relative 23
9.0
Density, g/cm3 8.5
7.8
Embodied Carbon, kg CO2/kg material 4.5
2.9
Embodied Energy, MJ/kg 68
41
Embodied Water, L/kg 72
97

Common Calculations

PREN (Pitting Resistance) 19
14
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 23 to 58
31 to 35
Strength to Weight: Bending, points 21 to 38
26 to 28
Thermal Diffusivity, mm2/s 7.1
6.5
Thermal Shock Resistance, points 24 to 59
31 to 34

Alloy Composition

Aluminum (Al), % 0
0 to 0.020
Boron (B), % 0
0 to 0.0015
Carbon (C), % 0.28 to 0.36
0.17 to 0.23
Chromium (Cr), % 3.0 to 3.8
10 to 11.5
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 87.6 to 93.8
84.5 to 88.3
Manganese (Mn), % 0.15 to 0.4
0.4 to 0.9
Molybdenum (Mo), % 0
0.5 to 0.8
Nickel (Ni), % 0 to 0.3
0.2 to 0.6
Niobium (Nb), % 0
0.25 to 0.55
Nitrogen (N), % 0
0.050 to 0.1
Phosphorus (P), % 0 to 0.030
0 to 0.025
Silicon (Si), % 0.15 to 0.5
0 to 0.5
Sulfur (S), % 0 to 0.030
0 to 0.015
Tungsten (W), % 8.5 to 10
0
Vanadium (V), % 0.3 to 0.6
0.1 to 0.3

Comparable Variants