AISI Type 430 Stainless Steel annealed at 815C, tested at 205C (400F)


Subcategory: Ferrous Metal; Metal; Stainless Steel; T 400 Series Stainless Steel

Close Analogs: Composition Notes: Iron content calculated as remainder.

Key Words: UNS S43000, AMS 5503, AMS 5627, ASME SA182, ASME SA240, ASME SA268, ASME SA479, ASTM A176, ASTM A182, ASTM A240, ASTM A268, ASTM A276, ASTM A314, ASTM A473, ASTM A479, ASTM A493, ASTM A511, ASTM A554, ASTM A580, ASTM A651, B.S. 430 S 15, ferritic, DIN 1.4016, AFNOR Z 8 C 17 (Fr), UNI X 8 Cr 17, JIS SUS 430, SS14 2320 (Sweden), FED QQ-S-763, FED QQ-S-766, FED STD-66, MIL SPEC MIL-S-862, SAE J405 (51430), ISO 683/13 8

Component   Wt. %
CMax 0.12 
Cr14 - 18 
Fe79 - 87 
MnMax 1 
PMax 0.04 
SMax 0.03 
SiMax 1 

Material Notes:
One of the most widely used "non-hardenable" stainless steels; magnetic in all conditions, good physical and mechanical characteristics, about three-quarters the ductility of low carbon strip and inferior to chrome-nickel grades; cost less than chromium-nickel stainless steels.

Applications: cabinet hardware, decorative appliance and automotive molding and trim, range hoods, restaurant equipment, drawn and formed parts and stampings.

Corrosion Resistance: Excellent resistance to citric and nitric acid, sulfur gases; slightly less corrosion and heat resistant than Types 301, 302, and 304.

Weldability: Poorer than Type 409; use common fusion and resistance techniques, but welds not suitable for rigorous service. Use AWS E/ER 308L or 430 weld filler.

Processing: Annealed 430 is susceptible to stretcher strains and roping. Skin passing after annealing reduces the likelihood of stretcher strains, but can also reduce the ductility somewhat.

Physical PropertiesMetricEnglishComments
Density7.8 g/cc0.282 lb/in 

Mechanical Properties
Tensile Strength, Ultimate441 MPa64000 psi 
Tensile Strength, Yield265 MPa38400 psi at 0.2% offset
Elongation at Break30 %30 % in 50 mm
Modulus of Elasticity200 GPa29000 ksi 

Electrical Properties
Electrical Resistivity6e-005 ohm-cm6e-005 ohm-cm at 20C
Magnetic Permeability600 - 1100600 - 1100 annealed condition at RT

Thermal Properties
CTE, linear 20C10.4 m/m-C5.78 in/in-F from 0-100C (32-212F)
CTE, linear 250C11 m/m-C6.11 in/in-F at 0-315C
CTE, linear 500C11.3 m/m-C6.28 in/in-F at 0-540C, 11.9 m/m-C at 0-650C, 12.4 m/m-C at 0-815C
Specific Heat Capacity0.46 J/g-C0.11 BTU/lb-F from 0-100C (32-212F)
Thermal Conductivity26.1 W/m-K181 BTU-in/hr-ft-F at 100C, 26.3 at 500C
Melting Point1425 - 1510 C2600 - 2750 F 
Solidus1425 C2600 F 
Liquidus1510 C2750 F 
Maximum Service Temperature, Air815 C1500 F Continuous Service
Maximum Service Temperature, Air870 C1600 F Intermittent Service

References for this datasheet.


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