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EN 1.7706 Steel vs. EN 1.3967 Stainless Steel

Both EN 1.7706 steel and EN 1.3967 stainless steel are iron alloys. They have 58% 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 1.7706 steel and the bottom bar is EN 1.3967 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 210
200
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 17
22
Fatigue Strength, MPa 330
240
Impact Strength: V-Notched Charpy, J 30
74
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
79
Tensile Strength: Ultimate (UTS), MPa 690
690
Tensile Strength: Yield (Proof), MPa 500
350

Thermal Properties

Latent Heat of Fusion, J/g 260
300
Maximum Temperature: Mechanical, °C 440
1070
Melting Completion (Liquidus), °C 1470
1430
Melting Onset (Solidus), °C 1430
1380
Specific Heat Capacity, J/kg-K 470
470
Thermal Expansion, µm/m-K 13
16

Otherwise Unclassified Properties

Base Metal Price, % relative 3.7
25
Density, g/cm3 7.9
7.9
Embodied Carbon, kg CO2/kg material 2.3
4.8
Embodied Energy, MJ/kg 32
66
Embodied Water, L/kg 57
180

Common Calculations

PREN (Pitting Resistance) 4.7
36
Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
130
Resilience: Unit (Modulus of Resilience), kJ/m3 670
310
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 24
24
Strength to Weight: Bending, points 22
22
Thermal Shock Resistance, points 20
15

Alloy Composition

Carbon (C), % 0.15 to 0.2
0 to 0.030
Chromium (Cr), % 1.2 to 1.5
20 to 21.5
Copper (Cu), % 0 to 0.3
0
Iron (Fe), % 94.7 to 97.1
50.3 to 57.8
Manganese (Mn), % 0.5 to 0.9
4.0 to 6.0
Molybdenum (Mo), % 0.9 to 1.1
3.0 to 3.5
Nickel (Ni), % 0 to 0.4
15 to 17
Niobium (Nb), % 0
0 to 0.25
Nitrogen (N), % 0
0.2 to 0.35
Phosphorus (P), % 0 to 0.020
0 to 0.025
Silicon (Si), % 0 to 0.6
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.010
Vanadium (V), % 0.2 to 0.3
0