430 Stainless Steel Products

 

Compostion

Grade		C	Mn	Si	P	S	Cr	Mo	Ni	N
430	min. max.	- 0.12	- 1	- 1	- 0.04	- 0.03	16.0 18.0	-	-0.75	-
430F	min. max.	- 0.12	- 1.25	- 1	- 0.06	0.15 -	16.0 18.0	-	-	-

Mechanical Properties

Grade	Tensile Strength (MPa) min	Yield Strength 0.2% Proof (MPa) min	Elongation (% in 50mm) min	Hardness
				Rockwell B (HR B) max	Brinell (HB) max
430	450	205	22	89	183
430F	552 typical	379 typical	25 typical	-	262

Physical Properties

Grade	Density (kg/m3)	Elastic Modulus (GPa)	Mean Coefficient of Thermal Expansion (mm/m/°C)			Thermal Conductivity (W/m.K)		Specific Heat 0-100°C (J/kg.K)	Electrical Resistivity (nW.m)
			0-100°C	0-315°C	0-538°C	at 100°C	at 500°C
430	7750	200	10.4	11.0	11.4	23.9	26.0	460	600
430F	7750	200	10.4	11.0	11.4	26.1	26.3	460	600

Possible Alternative Grades

In the table below are a list of possible alternative grades to Grade 430.

Grade	Reason it may be chosen instead of 430
430F	Higher machinability than 430 is needed in bar product, and reduced corrosion resistance is acceptable.
434	Better pitting resistance is required
304	Slightly higher corrosion resistance is needed, together with greatly improved ability to be welded and cold formed
316	Much better corrosion resistance is needed, together with greatly improved ability to be welded and cold formed
3CR12	A lower corrosion resistance is acceptable in a cost-critical application