S40300 - ASTM A473-2018

USA UNS	S40300
ASTM Specification or Grade	403
Corresponding Standard	ASTM A473-2018 Stainless Steel Forgings
Classification	Martensitic Stainless Steel

Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr
Minimum Value	-	-	-	-	-	11.5
Maximum Value	0.15	0.5	1	0.04	0.03	13

Mechanical Properties

	Tensile Strength σ_b Mpa	Yield Point σ_s Mpa	Elongation or Extension Rate δ %	Reduction of Area ψ %	Hardness HBW
A	≥485	≥275	≥20	≥45	≤223
1	≥485	≥275	≥20	≥45	≤223
2	≥760	≥585	≥15	≥45	≤269
3	≥895	≥690	≥12	≥35	≤331

Approximate Comparison Table Martensitic Stainless Steel

Note: The data is for reference only! If you have any questions, please fill out "I want to correct it"!