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S35125 Stainless Steel vs. ASTM A387 Grade 12 Steel

Both S35125 stainless steel and ASTM A387 grade 12 steel are iron alloys. They have 43% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is S35125 stainless steel and the bottom bar is ASTM A387 grade 12 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 39
25
Fatigue Strength, MPa 200
190 to 230
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 78
73
Shear Strength, MPa 370
300 to 330
Tensile Strength: Ultimate (UTS), MPa 540
470 to 520
Tensile Strength: Yield (Proof), MPa 230
260 to 310

Thermal Properties

Latent Heat of Fusion, J/g 300
250
Maximum Temperature: Mechanical, °C 1100
430
Melting Completion (Liquidus), °C 1430
1470
Melting Onset (Solidus), °C 1380
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 12
44
Thermal Expansion, µm/m-K 16
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.7
7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 1.9
8.3

Otherwise Unclassified Properties

Base Metal Price, % relative 36
2.8
Density, g/cm3 8.1
7.8
Embodied Carbon, kg CO2/kg material 6.4
1.6
Embodied Energy, MJ/kg 89
21
Embodied Water, L/kg 210
51

Common Calculations

PREN (Pitting Resistance) 30
2.7
Resilience: Ultimate (Unit Rupture Work), MJ/m3 170
98 to 110
Resilience: Unit (Modulus of Resilience), kJ/m3 140
180 to 250
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 19
16 to 18
Strength to Weight: Bending, points 18
17 to 18
Thermal Diffusivity, mm2/s 3.1
12
Thermal Shock Resistance, points 12
14 to 15

Alloy Composition

Carbon (C), % 0 to 0.1
0.050 to 0.17
Chromium (Cr), % 20 to 23
0.8 to 1.2
Iron (Fe), % 36.2 to 45.8
97 to 98.2
Manganese (Mn), % 1.0 to 1.5
0.4 to 0.65
Molybdenum (Mo), % 2.0 to 3.0
0.45 to 0.6
Nickel (Ni), % 31 to 35
0
Niobium (Nb), % 0.25 to 0.6
0
Phosphorus (P), % 0 to 0.045
0 to 0.025
Silicon (Si), % 0 to 0.5
0.15 to 0.4
Sulfur (S), % 0 to 0.015
0 to 0.025