A681 Type H10 T20810 - ASTM A681-2008(R2015)

Grade	A681 Type H10
USA UNS	T20810
AISI American Iron and Steel Institute	H10
Corresponding Standard	ASTM A681-2008(R2015) Standard Specification for Tool Steels Alloy
Classification	Tool Steel

A681 Type H10 Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Mo	V	More
Minimum Value	0.35	0.8	0.2	-	-	3	2	0.25	Ni+Cu≤0.75
Maximum Value	0.45	1.25	0.7	0.03	0.03	3.75	3	0.75	Ni+Cu≤0.75

A681 Type H10 Mechanical Properties

form	Heat Treatment or Condition	Reduction of Area ψ %
Bars, thick plates, thin plates, strips, rods, wires, forgings	Cold Drawing	BHN ≤255
	Annealing	BHN ≤229
	Heat Treatment	HRC ≥55

1 Approximate Comparison Table Alloy Tool Steel

2 Approximate Comparison Table Hot Work Tool Steel

Japan	United States		Germany		France	European Standard		Russia	United Kingdom
JIS	ASTM/AISI	UNS	DIN EN/DIN	W-Nr.	NF EN/NF	EN	Numerical Grade	GOST	BS EN/BS
SDK62 SDK7	H10 H12	T20810	30CrMoV12 45WCrV7 X30WCrV5-3 X30WCrV9-3 X32CrMoV3-3	1.2365	32CDV12-28 32CrMoV12-28 Z35CWDV5	30CrMoV12-11 30CrNiMo8 32CrMoV12-28	- 1.6580 1.2365	3Х3М3Ф 3KH3M3F	2365 BH10 BH12

3 Approximate Comparison Table Alloy Tool Steel 3

Japan	United States		Germany		France	European Standard		Russia	United Kingdom
JIS	ASTM	AISI	DIN EN/DIN	W-Nr.	NF EN/NF	EN	Numerical Grade	GOST	BS EN/BS
SKD62 SKD7	H10 H12	T20810	X32CrMoV3-3 45WCrV7 X30WCrV5-3 X30WCrV9-3 30CrMoV12	1.2365	32CDV12-28 32CrMoV12-28 Z35CWDV5	32CrMoV12-28 30CrNiMo8 30CrMoV12-11	1.2365 1.6580	3Х3М3Ф 3KH3M3F	2365 BH10 BH12

4 Approximate Comparison Table Alloy Tool Steel 3

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