Stainless steel grade 430 is a non-hardenable steel

Composition

The chemical compositions of various elements of grade 430 stainless steels are tabulated below.

 

Table 1 – Chemical compositions of grade 430 stainless steels

GradeN		C	Mn	Si	P	S	Cr	Mo	Ni	N
430	min. max.	- 0.12	- 1	- 1	- 0.04	- 0.030	16 18	-	- 0.50	-
430F	min. max.	- 0.12	- 1.25	- 1	- 0.06	0.15 -	16 18	-	-	-

 

 

Mechanical Properties

The mechanical properties for grade 430 stainless steels are listed in the table below.

Table 2 - Mechanical properties of grade 430 stainless steels

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	483	310	22	85	183
430F	552 typical	379 typical	25 typical	-	262