AISI Type 302 Stainless Steel, tested at 315C (600F)


Subcategory: Ferrous Metal; Heat Resisting; Metal; Stainless Steel; T 300 Series Stainless Steel

Close Analogs: AISI Type 302B

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

Component   Wt. %
CMax 0.15 
Cr18 
Fe70 
MnMax 2 
Ni9 
PMax 0.045 
SMax 0.03 
SiMax 1 

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.

Physical PropertiesMetricEnglishComments
Density7.86 g/cc0.284 lb/in 

Mechanical Properties
Tensile Strength, Ultimate470 MPa68200 psi 
Tensile Strength, Yield135 MPa19600 psi at 0.2% offset
Elongation at Break45 %45 % in 50 mm
Modulus of Elasticity193 GPa28000 ksi 
Poisson's Ratio0.250.25 Calculated
Shear Modulus77.2 GPa11200 ksi 

Electrical Properties
Electrical Resistivity7.2e-005 ohm-cm7.2e-005 ohm-cm at 20C, 0.000078 Ohm-cm at 100C, 0.000086 Ohm-cm at 200C, 0.0001 Ohm-cm at 400C

Thermal Properties
CTE, linear 250C17.8 m/m-C9.89 in/in-F at 0-315C (32-600F)
CTE, linear 500C18.4 m/m-C10.2 in/in-F at 0-540C, 18.7 m/m-C at 0-650C
Specific Heat Capacity0.5 J/g-C0.12 BTU/lb-F from 0-100C (32-212F)
Thermal Conductivity16.2 W/m-K112 BTU-in/hr-ft-F at 100C (212F), 21.5 W/m-K at 500C (930F)
Melting Point1400 - 1420 C2550 - 2590 F 
Solidus1400 C2550 F 
Liquidus1420 C2590 F 
Maximum Service Temperature, Air870 C1600 F Intermittent Service
Maximum Service Temperature, Air925 C1700 F Continuous Service

References for this datasheet.


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