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EN 1.3967 Stainless Steel vs. EN 1.7725 Steel

Both EN 1.3967 stainless steel and EN 1.7725 steel are iron alloys. They have 57% of their average alloy composition in common. There are 28 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is EN 1.3967 stainless steel and the bottom bar is EN 1.7725 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200
250 to 300
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 22
14
Fatigue Strength, MPa 240
390 to 550
Impact Strength: V-Notched Charpy, J 74
34 to 35
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 79
73
Tensile Strength: Ultimate (UTS), MPa 690
830 to 1000
Tensile Strength: Yield (Proof), MPa 350
610 to 860

Thermal Properties

Latent Heat of Fusion, J/g 300
250
Maximum Temperature: Mechanical, °C 1070
440
Melting Completion (Liquidus), °C 1430
1460
Melting Onset (Solidus), °C 1380
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Expansion, µm/m-K 16
13

Otherwise Unclassified Properties

Base Metal Price, % relative 25
2.9
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 4.8
1.8
Embodied Energy, MJ/kg 66
24
Embodied Water, L/kg 180
54

Common Calculations

PREN (Pitting Resistance) 36
2.8
Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
110 to 130
Resilience: Unit (Modulus of Resilience), kJ/m3 310
980 to 1940
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 24
29 to 35
Strength to Weight: Bending, points 22
25 to 28
Thermal Shock Resistance, points 15
24 to 29

Alloy Composition

Carbon (C), % 0 to 0.030
0.27 to 0.34
Chromium (Cr), % 20 to 21.5
1.3 to 1.7
Iron (Fe), % 50.3 to 57.8
95.7 to 97.5
Manganese (Mn), % 4.0 to 6.0
0.6 to 1.0
Molybdenum (Mo), % 3.0 to 3.5
0.3 to 0.5
Nickel (Ni), % 15 to 17
0
Niobium (Nb), % 0 to 0.25
0
Nitrogen (N), % 0.2 to 0.35
0
Phosphorus (P), % 0 to 0.025
0 to 0.025
Silicon (Si), % 0 to 1.0
0 to 0.6
Sulfur (S), % 0 to 0.010
0 to 0.030
Vanadium (V), % 0
0.050 to 0.15