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Elmet Technologies

302 Stainless Steel, after cold work
Categories: Metal; Ferrous Metal; Heat Resisting; Stainless Steel; T 300 Series Stainless Steel

Material Notes: Austenitic Cr-Ni stainless steel. More corrosion resistant than Type 301 and because of higher Ni content does not work harden as quickly as Type 301. Essentially non-magnetic in annealed condition, slightly magnetic in cold worked condition. Can be stamped, blanked, formed, and lightly drawn. Applications include car and radar antennas, automobile trim, bottling machinery, dairy processing equipment, food processing equipment, home appliances, hospital equipment, industrial floor plate, jewelry, kitchen and restaurant equipment, spring clips, washers, retainers.

Key Words: T302, T 302, 302SS, 302 SS, UNS S30200, AMS 5515, AMS 5516, AMS 5636, AMS 5637, AMS 5688, ASME SA 240, ASME SA 479, ASTM A167, ASTM A240, ASTM A276, ASTM A313, ASTM A314, ASTM A368, ASTM A473, ASTM A478, ASTM A479, ASTM A492, ASTM A493, ASTM A511, ASTM A554, ASTM A666, FED QQ-S-763, FED QQ-S-766, FED QQ-W-423, MIL SPEC MIL-S-862, SAE J230, SAE J405 (30302), DIN 1.4300, X12CrNi188, B.S. 309S25, EN 58A, PN 86020 (Poland), 1H18N9, austenitic, ISO 4954 X10CrNi189E, ISO 683/13 12, ISO 6931 X9CrNi188, 18-8
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Physical PropertiesMetricEnglishComments
Density 7.86 g/cc0.284 lb/in³
 
Mechanical PropertiesMetricEnglishComments
Tensile Strength, Ultimate 1115 MPa161700 psi
Tensile Modulus 193 GPa28000 ksi
 188 GPa
@Temperature -195 °C
27300 ksi
@Temperature -319 °F
Poissons Ratio 0.250.25Calculated
Fatigue Strength 485 - 550 MPa70300 - 79800 psiT302 with full hardened temper
Shear Modulus 77.2 GPa11200 ksi
 
Electrical PropertiesMetricEnglishComments
Electrical Resistivity  0.0000720 ohm-cm
@Temperature 20.0 °C
0.0000720 ohm-cm
@Temperature 68.0 °F
 0.0000780 ohm-cm
@Temperature 100 °C
0.0000780 ohm-cm
@Temperature 212 °F
 0.0000860 ohm-cm
@Temperature 200 °C
0.0000860 ohm-cm
@Temperature 392 °F
 0.000100 ohm-cm
@Temperature 400 °C
0.000100 ohm-cm
@Temperature 752 °F
 
Thermal PropertiesMetricEnglishComments
CTE, linear  17.2 µm/m-°C
@Temperature 0.000 - 100 °C
9.56 µin/in-°F
@Temperature 32.0 - 212 °F
 17.8 µm/m-°C
@Temperature 0.000 - 315 °C
9.89 µin/in-°F
@Temperature 32.0 - 599 °F
 18.4 µm/m-°C
@Temperature 0.000 - 540 °C
10.2 µin/in-°F
@Temperature 32.0 - 1000 °F
 18.7 µm/m-°C
@Temperature 0.000 - 650 °C
10.4 µin/in-°F
@Temperature 32.0 - 1200 °F
Specific Heat Capacity 0.500 J/g-°C
@Temperature 0.000 - 100 °C
0.120 BTU/lb-°F
@Temperature 32.0 - 212 °F
Thermal Conductivity  16.2 W/m-K
@Temperature 100 °C
112 BTU-in/hr-ft²-°F
@Temperature 212 °F
 21.5 W/m-K
@Temperature 500 °C
149 BTU-in/hr-ft²-°F
@Temperature 932 °F
Melting Point 1400 - 1420 °C2550 - 2590 °F
Solidus 1400 °C2550 °F
Liquidus 1420 °C2590 °F
Maximum Service Temperature, Air 870 °C1600 °FIntermittent
 925 °C1700 °FContinuous Service
 
Component Elements PropertiesMetricEnglishComments
Carbon, C <= 0.15 %<= 0.15 %
Chromium, Cr 18 %18 %
Iron, Fe 70 %70 %
Manganese, Mn <= 2.0 %<= 2.0 %
Nickel, Ni 9.0 %9.0 %
Phosphorus, P <= 0.045 %<= 0.045 %
Silicon, Si <= 1.0 %<= 1.0 %
Sulfur, S <= 0.030 %<= 0.030 %

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