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S30815 Stainless Steel vs. EN 1.4971 Stainless Steel

Both S30815 stainless steel and EN 1.4971 stainless steel are iron alloys. They have 64% of their average alloy composition in common. There are 31 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 S30815 stainless steel and the bottom bar is EN 1.4971 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
240
Elastic (Young's, Tensile) Modulus, GPa 200
210
Elongation at Break, % 45
34
Fatigue Strength, MPa 320
270
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
81
Shear Strength, MPa 480
530
Tensile Strength: Ultimate (UTS), MPa 680
800
Tensile Strength: Yield (Proof), MPa 350
340

Thermal Properties

Latent Heat of Fusion, J/g 310
300
Maximum Temperature: Corrosion, °C 430
570
Maximum Temperature: Mechanical, °C 1020
1100
Melting Completion (Liquidus), °C 1400
1460
Melting Onset (Solidus), °C 1360
1410
Specific Heat Capacity, J/kg-K 490
450
Thermal Conductivity, W/m-K 15
13
Thermal Expansion, µm/m-K 17
15

Otherwise Unclassified Properties

Base Metal Price, % relative 17
70
Density, g/cm3 7.7
8.4
Embodied Carbon, kg CO2/kg material 3.3
7.6
Embodied Energy, MJ/kg 47
110
Embodied Water, L/kg 160
300

Common Calculations

PREN (Pitting Resistance) 24
38
Resilience: Ultimate (Unit Rupture Work), MJ/m3 260
220
Resilience: Unit (Modulus of Resilience), kJ/m3 310
280
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 25
26
Strength to Weight: Bending, points 22
23
Thermal Diffusivity, mm2/s 4.0
3.4
Thermal Shock Resistance, points 15
19

Alloy Composition

Carbon (C), % 0.050 to 0.1
0.080 to 0.16
Cerium (Ce), % 0.030 to 0.080
0
Chromium (Cr), % 20 to 22
20 to 22.5
Cobalt (Co), % 0
18.5 to 21
Iron (Fe), % 62.8 to 68.4
24.3 to 37.1
Manganese (Mn), % 0 to 0.8
0 to 2.0
Molybdenum (Mo), % 0
2.5 to 3.5
Nickel (Ni), % 10 to 12
19 to 21
Niobium (Nb), % 0
0.75 to 1.3
Nitrogen (N), % 0.14 to 0.2
0.1 to 0.2
Phosphorus (P), % 0 to 0.040
0 to 0.035
Silicon (Si), % 1.4 to 2.0
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.015
Tungsten (W), % 0
2.0 to 3.0