440C S44004 - ASTM A959-2004

Grade	440C
USA UNS	S44004
Corresponding Standard	ASTM A959-2004 Standard Guide for Specifying Harmonized Standard Grade Compositions for Wrought Stainless Steels
Classification	Martensitic Stainless Steel

440C Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Mo
Minimum Value	0.95	-	-	-	-	16	-
Maximum Value	1.2	1	1	0.04	0.03	18	0.75

1 Approximate Comparison Table Martensitic Stainless Steel

China

Taiwan, China

Japan

South Korea

United States

International Organization for Standardization

Germany

France

European Standard

Russia

ISC

CNS

JIS

ASTM

UNS

ISO

DIN EN/DIN

W-Nr.

NF EN/NF

Numerical Grade

GOST

108Cr17
(11Cr17)
9Cr18

S44096

440C

SUS 440C

STS 440C

440C

S44004

X105CrMo 17
A-1b
(ISO 683-13-1986)

X105CrMo 17

1.4125

Z100CD17

X105CrMo 17

1.4125

95Х18

2 Approximate Comparison Table Martensitic Stainless Steel

China		Japan	United States		International Organization for Standardization	Germany		European Standard
GB	ISC	JIS	ASTM/AISI	UNS	ISO	DIN EN/DIN	W-Nr.	EN	Numerical Grade
102Cr17Mo (9Cr18Mo)	S45990	SUS 440C	440C	S44004	X105CrMo 17 A-1b (ISO 683-13-1986)	X105CrMo	1.4125	X105CrMo 17	1.4125

3 Approximate Comparison Table Plastic Mold Steel

4 Approximate Comparison Table Martensitic Stainless Steel

China		Japan	United States	International Organization for Standardization		European Standard
GB	ISC	JIS	UNS	ISO	Numerical Grade	Numerical Grade
108Cr17	S44096	SUS440C	S44004	X110Cr17	4023-440-04-I	(1.4023)

440C Corresponding Standards(Same grade name, different standards)

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