S43020 - ASTM A473-2018

USA UNS	S43020
ASTM Specification or Grade	430F
Corresponding Standard	ASTM A473-2018 Stainless Steel Forgings
Classification	Ferritic Stainless Steel

Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Ni	Mo
Minimum Value	-	-	-	-	0.15	16	-	-
Maximum Value	0.12	1	1.25	0.06	-	18	0.75	0.6

Mechanical Properties

Tensile Strength σ_b Mpa	Yield Point σ_s Mpa	Elongation or Extension Rate δ %	Reduction of Area ψ %	Hardness HBW
≥485	≥275	≥20	≥45	≤223

1 Approximate Comparison Table Ferritic Stainless Steel

China

Taiwan, China

Japan

South Korea

United States

International Organization for Standardization

Germany

France

European Standard

Sweden

ISC

CNS

JIS

ASTM

UNS

ISO

DIN EN/DIN

W-Nr.

NF EN/NF

Numerical Grade

Y10Cr17
(Y1Cr17)

S11717

430F

SUS 430F

STS 430F

430F

S43020

X7CrS 17
X14CrS 17
8a
(ISO 630-1:1987)

X14CrMoS 17
(X12CrMoS 17)

1.4104

Z10CF 17

X14CrMoS 17

1.4104

2383

2 Approximate Comparison Table Ferritic Stainless Steel

China		Japan	United States		International Organization for Standardization		European Standard
GB	ISC	JIS	ASTM	UNS	ISO	Numerical Grade	Numerical Grade
Y10Cr17 (Y1Cr17) GB/T 20878-2024	S11717	SUS430F	430F ASTM A959	S43020	X7CrS17 ISO 15510	4004-430-20-I	(1.4004)

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