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AISI 440A Stainless Steel vs. EN 1.3967 Stainless Steel

Both AISI 440A stainless steel and EN 1.3967 stainless steel are iron alloys. They have 72% of their average alloy composition in common. There are 26 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is AISI 440A stainless steel and the bottom bar is EN 1.3967 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 5.0 to 20
22
Fatigue Strength, MPa 270 to 790
240
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
79
Tensile Strength: Ultimate (UTS), MPa 730 to 1790
690
Tensile Strength: Yield (Proof), MPa 420 to 1650
350

Thermal Properties

Latent Heat of Fusion, J/g 280
300
Maximum Temperature: Corrosion, °C 400
440
Maximum Temperature: Mechanical, °C 760
1070
Melting Completion (Liquidus), °C 1480
1430
Melting Onset (Solidus), °C 1370
1380
Specific Heat Capacity, J/kg-K 480
470
Thermal Expansion, µm/m-K 10
16

Otherwise Unclassified Properties

Base Metal Price, % relative 9.0
25
Density, g/cm3 7.7
7.9
Embodied Carbon, kg CO2/kg material 2.2
4.8
Embodied Energy, MJ/kg 31
66
Embodied Water, L/kg 120
180

Common Calculations

PREN (Pitting Resistance) 18
36
Resilience: Ultimate (Unit Rupture Work), MJ/m3 87 to 120
130
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 26 to 65
24
Strength to Weight: Bending, points 23 to 43
22
Thermal Shock Resistance, points 26 to 65
15

Alloy Composition

Carbon (C), % 0.6 to 0.75
0 to 0.030
Chromium (Cr), % 16 to 18
20 to 21.5
Iron (Fe), % 78.4 to 83.4
50.3 to 57.8
Manganese (Mn), % 0 to 1.0
4.0 to 6.0
Molybdenum (Mo), % 0 to 0.75
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 0.040
0 to 0.025
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.010