AISI Type 303 Stainless Steel, annealed bar, tested at RT


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

Close Analogs: AISI Type 303 Se

Key Words: T303, T 303, 303SS, 303 SS, AFNOR Z 10 CNF 18.09 (Fr), UNI X 10 CrNiS 18 09, SUS 303, SS14 2346 (Sweden), B.S. 303 S 21, UNS S30300, AMS 5640 (1), ASME SA194, ASME SA320, ASTM A194, ASTM A314, ASTM A320, ASTM A320, ASTM A473, ASTM A581, ASTM A582, MIL SPEC MIL-S-862, SAE J405 (30303), DIN 1.4305, X12CrNiS188, EN 58M, austenitic, ISO 683/13 17, 18-8

Component   Wt. %
CMax 0.15 
Cr18 
Fe69 
Component   Wt. %
MnMax 2 
MoMax 0.6 
Ni9 
Component   Wt. %
PMax 0.2 
SMin 0.15 
SiMax 1 

Physical PropertiesMetricEnglishComments
Density8 g/cc0.289 lb/in 

Mechanical Properties
Hardness, Brinell160160 
Hardness, Knoop180180 Converted from Brinell hardness.
Hardness, Rockwell B8383 Converted from Brinell hardness.
Hardness, Vickers167167 Converted from Brinell hardness.
Tensile Strength, Ultimate620 MPa89900 psi 
Tensile Strength, Yield240 MPa34800 psi at 0.2% offset
Elongation at Break50 %50 % in 50 mm
Modulus of Elasticity193 GPa28000 ksi tension
Poisson's Ratio0.250.25 Calculated
Fatigue Strength240 MPa34800 psi annealed
Fatigue Strength330 MPa47900 psi 25% hardened
Shear Modulus77.2 GPa11200 ksi 

Electrical Properties
Electrical Resistivity7.2e-005 ohm-cm7.2e-005 ohm-cm 
Magnetic Permeability1.0081.008 at RT

Thermal Properties
CTE, linear 20C17.2 m/m-C9.56 in/in-F from from 0-100C
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 

References for this datasheet.


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