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S17700 Stainless Steel vs. EN 1.4303 Stainless Steel

Both S17700 stainless steel and EN 1.4303 stainless steel are iron alloys. They have a moderately high 94% of their average alloy composition in common. There are 33 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is S17700 stainless steel and the bottom bar is EN 1.4303 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180 to 430
190 to 270
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 1.0 to 23
13 to 49
Fatigue Strength, MPa 290 to 560
220 to 320
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
77
Shear Strength, MPa 740 to 940
420 to 540
Tensile Strength: Ultimate (UTS), MPa 1180 to 1650
590 to 900
Tensile Strength: Yield (Proof), MPa 430 to 1210
230 to 560

Thermal Properties

Latent Heat of Fusion, J/g 290
290
Maximum Temperature: Corrosion, °C 410
410
Maximum Temperature: Mechanical, °C 890
940
Melting Completion (Liquidus), °C 1440
1420
Melting Onset (Solidus), °C 1400
1380
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 15
15
Thermal Expansion, µm/m-K 11
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.3
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 13
17
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 2.8
3.2
Embodied Energy, MJ/kg 40
46
Embodied Water, L/kg 150
150

Common Calculations

PREN (Pitting Resistance) 17
19
Resilience: Ultimate (Unit Rupture Work), MJ/m3 15 to 210
110 to 230
Resilience: Unit (Modulus of Resilience), kJ/m3 460 to 3750
140 to 800
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 42 to 59
21 to 32
Strength to Weight: Bending, points 32 to 40
20 to 26
Thermal Diffusivity, mm2/s 4.1
4.0
Thermal Shock Resistance, points 39 to 54
13 to 20

Alloy Composition

Aluminum (Al), % 0.75 to 1.5
0
Carbon (C), % 0 to 0.090
0 to 0.060
Chromium (Cr), % 16 to 18
17 to 19
Iron (Fe), % 70.5 to 76.8
64.8 to 72
Manganese (Mn), % 0 to 1.0
0 to 2.0
Nickel (Ni), % 6.5 to 7.8
11 to 13
Nitrogen (N), % 0
0 to 0.1
Phosphorus (P), % 0 to 0.040
0 to 0.045
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.015

Comparable Variants