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ASTM A182 Grade F12 Class 2 vs. EN 1.4903 Stainless Steel

Both ASTM A182 grade F12 class 2 and EN 1.4903 stainless steel are iron alloys. They have a moderately high 91% 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 ASTM A182 grade F12 class 2 and the bottom bar is EN 1.4903 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 22
20 to 21
Fatigue Strength, MPa 220
320 to 330
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
75
Shear Strength, MPa 340
420
Tensile Strength: Ultimate (UTS), MPa 540
670 to 680
Tensile Strength: Yield (Proof), MPa 310
500

Thermal Properties

Latent Heat of Fusion, J/g 250
270
Maximum Temperature: Mechanical, °C 430
650
Melting Completion (Liquidus), °C 1460
1460
Melting Onset (Solidus), °C 1420
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 43
26
Thermal Expansion, µm/m-K 13
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3
3.4
Electrical Conductivity: Equal Weight (Specific), % IACS 8.4
4.0

Otherwise Unclassified Properties

Base Metal Price, % relative 2.8
7.0
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.6
2.6
Embodied Energy, MJ/kg 21
36
Embodied Water, L/kg 52
88

Common Calculations

PREN (Pitting Resistance) 2.8
13
Resilience: Ultimate (Unit Rupture Work), MJ/m3 100
120 to 130
Resilience: Unit (Modulus of Resilience), kJ/m3 260
650
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 19
24
Strength to Weight: Bending, points 19
22
Thermal Diffusivity, mm2/s 12
7.0
Thermal Shock Resistance, points 16
23

Alloy Composition

Aluminum (Al), % 0
0 to 0.040
Carbon (C), % 0.1 to 0.2
0.080 to 0.12
Chromium (Cr), % 0.8 to 1.3
8.0 to 9.5
Copper (Cu), % 0
0 to 0.3
Iron (Fe), % 96.4 to 98.3
87.1 to 90.5
Manganese (Mn), % 0.3 to 0.8
0.3 to 0.6
Molybdenum (Mo), % 0.44 to 0.65
0.85 to 1.1
Nickel (Ni), % 0
0 to 0.4
Niobium (Nb), % 0
0.060 to 0.1
Nitrogen (N), % 0
0.030 to 0.070
Phosphorus (P), % 0 to 0.040
0 to 0.025
Silicon (Si), % 0.1 to 0.6
0 to 0.5
Sulfur (S), % 0 to 0.040
0 to 0.015
Vanadium (V), % 0
0.18 to 0.25