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EN 1.4971 Stainless Steel vs. ASTM A302 Alloy Steel

Both EN 1.4971 stainless steel and ASTM A302 alloy steel are iron alloys. There are 29 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 1.4971 stainless steel and the bottom bar is ASTM A302 alloy steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 240
180 to 190
Elastic (Young's, Tensile) Modulus, GPa 210
190
Elongation at Break, % 34
20 to 23
Fatigue Strength, MPa 270
250 to 280
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 81
73
Shear Strength, MPa 530
370 to 390
Tensile Strength: Ultimate (UTS), MPa 800
590 to 620
Tensile Strength: Yield (Proof), MPa 340
350 to 390

Thermal Properties

Latent Heat of Fusion, J/g 300
250
Maximum Temperature: Mechanical, °C 1100
410
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
39 to 51
Thermal Expansion, µm/m-K 15
13

Otherwise Unclassified Properties

Base Metal Price, % relative 70
2.4 to 3.0
Density, g/cm3 8.4
7.8 to 7.9
Embodied Carbon, kg CO2/kg material 7.6
1.5 to 1.6
Embodied Energy, MJ/kg 110
20 to 21
Embodied Water, L/kg 300
48 to 50

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 220
110 to 120
Resilience: Unit (Modulus of Resilience), kJ/m3 280
330 to 410
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 26
21 to 22
Strength to Weight: Bending, points 23
20 to 21
Thermal Diffusivity, mm2/s 3.4
10 to 14
Thermal Shock Resistance, points 19
17 to 18