H-11 - ASTM A 646/A646M-2024

Grade	H-11
ASTM Specification or Grade	Grade 10
Corresponding Standard	ASTM A 646/A646M-2024 Standard Specification for Premium Quality Alloy Steel Blooms and Billets for Aircraft and Aerospace Forgings
Classification	Alloy Steel

H-11 Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Mo	V
Minimum Value	0.38	0.8	0.2	-	-	4.75	1.2	0.4
Maximum Value	0.43	1	0.4	0.015	0.015	5.25	1.4	0.6

* If any of the following elements are not specified, the following maximum limits shall apply: Nickel 0.35 %; Chromium 0.20 %; Molybdenum 0.06 %; Copper 0.35 %

H-11 Mechanical Properties

Heat Treatment or Condition	Hardness HBW
Annealing	≤235

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