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ASTM A387 Grade 12 Steel vs. EN 1.3967 Stainless Steel

Both ASTM A387 grade 12 steel and EN 1.3967 stainless steel are iron alloys. They have 56% of their average alloy composition in common. There are 27 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is ASTM A387 grade 12 steel and the bottom bar is EN 1.3967 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140 to 160
200
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 25
22
Fatigue Strength, MPa 190 to 230
240
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
79
Tensile Strength: Ultimate (UTS), MPa 470 to 520
690
Tensile Strength: Yield (Proof), MPa 260 to 310
350

Thermal Properties

Latent Heat of Fusion, J/g 250
300
Maximum Temperature: Mechanical, °C 430
1070
Melting Completion (Liquidus), °C 1470
1430
Melting Onset (Solidus), °C 1420
1380
Specific Heat Capacity, J/kg-K 470
470
Thermal Expansion, µm/m-K 13
16

Otherwise Unclassified Properties

Base Metal Price, % relative 2.8
25
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 1.6
4.8
Embodied Energy, MJ/kg 21
66
Embodied Water, L/kg 51
180

Common Calculations

PREN (Pitting Resistance) 2.7
36
Resilience: Ultimate (Unit Rupture Work), MJ/m3 98 to 110
130
Resilience: Unit (Modulus of Resilience), kJ/m3 180 to 250
310
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 16 to 18
24
Strength to Weight: Bending, points 17 to 18
22
Thermal Shock Resistance, points 14 to 15
15

Alloy Composition

Carbon (C), % 0.050 to 0.17
0 to 0.030
Chromium (Cr), % 0.8 to 1.2
20 to 21.5
Iron (Fe), % 97 to 98.2
50.3 to 57.8
Manganese (Mn), % 0.4 to 0.65
4.0 to 6.0
Molybdenum (Mo), % 0.45 to 0.6
3.0 to 3.5
Nickel (Ni), % 0
15 to 17
Niobium (Nb), % 0
0 to 0.25
Nitrogen (N), % 0
0.2 to 0.35
Phosphorus (P), % 0 to 0.025
0 to 0.025
Silicon (Si), % 0.15 to 0.4
0 to 1.0
Sulfur (S), % 0 to 0.025
0 to 0.010