ОТ4-1 - GOST 19807-1991

Grade	ОТ4-1
Corresponding Standard	GOST 19807-1991 Titanium and Wrought Titanium Alloys
Classification	Titanium and Titanium Alloys

ОТ4-1 Chemical Element Composition Content (%)

Component	Fe	C	Si	Mn	N	Zr	Al	H	O	Other Total	More
Minimum Value	-	-	-	0.7	-	-	1.5	-	-	-	Ti:Remainder
Maximum Value	0.3	0.1	0.12	2	0.05	0.3	2.5	0.012	0.15	0.3	Ti:Remainder

"Other individual elements or other totals": The chemical composition includes elements not specified in the table. Analysis should only be conducted if these elements are suspected to be present, or if routine analysis suggests that their content may exceed the prescribed limits.

◎ The mass fraction of copper and nickel in titanium and in all alloys shall be not more than 0.10 % (in total), including not more than 0.08 % nickel.

1 Approximate Comparison Table Processing Titanium and Titanium Alloys

China	International Organization for Standardization	Germany	France	Russia
GB	ISO	DIN EN/DIN	NF EN/NF	GOST
TC1	Ti-2Al-1.5Mn	TiAl2Mn1.5	T-A2M1.5	ОТ4-1

2 Approximate Comparison Table Processing Titanium and Titanium Alloys

Japan	Russia
JIS	GOST
ST-A90	OT4-1 ОТ4-1

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